/* ============================================
   GymApp - Mobile-First CSS
   ============================================ */

/* CSS Variables */
:root {
    /* Enable dark mode for native browser elements */
    color-scheme: dark;
    
    /* Colors - Dark Theme (Gym-friendly) */
    --color-bg: #0d0d0f;
    --color-surface: #16161a;
    --color-surface-elevated: #1e1e24;
    --color-border: #2a2a32;
    --color-text: #f0f0f0;
    --color-text-muted: #8a8a9a;
    --color-text-dim: #5a5a6a;
    
    /* Accent Colors */
    --color-primary: #00d4aa;
    --color-primary-hover: #00eebb;
    --color-primary-dim: rgba(0, 212, 170, 0.15);
    --color-secondary: #7b5cff;
    --color-danger: #ff4757;
    --color-warning: #ffa502;
    --color-success: #2ed573;
    --color-info: #3498db;
    
    /* Role Colors */
    --color-admin: #ff6b6b;
    --color-coach: #7b5cff;
    --color-athlete: #00d4aa;
    
    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    
    /* Typography */
    --font-family: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.4);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.5);
    
    /* Layout */
    --header-height: 60px;
    --sidebar-width: 260px;
    --bottom-nav-height: 70px;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 350ms ease;
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    overflow-x: hidden;
    line-height: 1.5;
    color: var(--color-text);
    background: var(--color-bg);
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-primary-hover);
}

img {
    max-width: 100%;
    height: auto;
}

/* ============================================
   Typography
   ============================================ */

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    color: var(--color-text);
}

h1 { font-size: var(--font-size-3xl); }
h2 { font-size: var(--font-size-2xl); }
h3 { font-size: var(--font-size-xl); }
h4 { font-size: var(--font-size-lg); }

.text-muted { color: var(--color-text-muted); }
.text-dim { color: var(--color-text-dim); }
.text-primary { color: var(--color-primary); }
.text-danger { color: var(--color-danger); }
.text-success { color: var(--color-success); }

/* ============================================
   App Layout
   ============================================ */

.app-wrapper {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Header */
.app-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    padding: 0 var(--space-md);
    z-index: 100;
    gap: var(--space-md);
}

.menu-toggle {
    width: 40px;
    height: 40px;
    background: transparent;
    border: none;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    padding: 8px;
}

.menu-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--color-text);
    border-radius: 2px;
    transition: var(--transition-fast);
}

.header-title {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-weight: 600;
    font-size: var(--font-size-lg);
}

.logo-icon {
    font-size: 1.5rem;
}

.header-actions {
    margin-left: auto;
}

/* User Menu */
.user-menu {
    position: relative;
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: white;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    cursor: pointer;
    font-size: var(--font-size-sm);
}

.user-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 200px;
    background: var(--color-surface-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition-fast);
    z-index: 200;
}

.user-dropdown.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-header {
    padding: var(--space-md);
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.dropdown-divider {
    height: 1px;
    background: var(--color-border);
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    color: var(--color-text);
    transition: background var(--transition-fast);
}

.dropdown-item:hover {
    background: var(--color-surface);
    color: var(--color-text);
}

.dropdown-item .icon {
    font-size: 1.1rem;
}

/* Role Badge */
.role-badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.role-admin { background: var(--color-admin); color: white; }
.role-coach { background: var(--color-coach); color: white; }
.role-athlete { background: var(--color-athlete); color: var(--color-bg); }

/* Sidebar */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: var(--sidebar-width);
    background: var(--color-surface);
    border-right: 1px solid var(--color-border);
    transform: translateX(-100%);
    transition: transform var(--transition-normal);
    z-index: 150;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

.sidebar.open {
    transform: translateX(0);
}

.sidebar-header {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-lg);
    font-weight: 600;
    font-size: var(--font-size-xl);
    border-bottom: 1px solid var(--color-border);
}

.nav-section {
    padding: var(--space-md);
}

.nav-section-title {
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--color-text-dim);
    padding: var(--space-sm) var(--space-md);
    margin-bottom: var(--space-xs);
}

.nav-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    color: var(--color-text-muted);
    font-weight: 500;
    transition: var(--transition-fast);
    margin-bottom: 2px;
}

.nav-item:hover {
    background: var(--color-surface-elevated);
    color: var(--color-text);
}

.nav-item.active {
    background: var(--color-primary-dim);
    color: var(--color-primary);
}

.nav-icon {
    font-size: 1.25rem;
    width: 28px;
    text-align: center;
}

.sidebar-footer {
    margin-top: auto;
    padding: var(--space-md);
    border-top: 1px solid var(--color-border);
}

.sidebar-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
    z-index: 140;
}

.sidebar-overlay.show {
    opacity: 1;
    visibility: visible;
}

/* Main Content */
.main-content {
    margin-top: var(--header-height);
    padding: var(--space-md);
    padding-bottom: calc(var(--bottom-nav-height) + var(--space-lg));
    min-height: calc(100vh - var(--header-height));
    overflow-x: hidden;
    max-width: 100vw;
    box-sizing: border-box;
}

/* Bottom Navigation (Mobile) */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: var(--bottom-nav-height);
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
    display: flex;
    justify-content: space-around;
    align-items: center;
    z-index: 100;
    padding-bottom: env(safe-area-inset-bottom, 0);
}

.bottom-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    color: var(--color-text-muted);
    font-size: var(--font-size-xs);
    padding: var(--space-sm);
    min-width: 64px;
    transition: color var(--transition-fast);
}

.bottom-nav-item .nav-icon {
    font-size: 1.5rem;
}

.bottom-nav-item.active {
    color: var(--color-primary);
}

/* ============================================
   Components
   ============================================ */

/* Alerts */
.alert {
    padding: var(--space-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-md);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.alert-error {
    background: rgba(255, 71, 87, 0.15);
    border: 1px solid rgba(255, 71, 87, 0.3);
    color: #ff6b7a;
}

.alert-success {
    background: rgba(46, 213, 115, 0.15);
    border: 1px solid rgba(46, 213, 115, 0.3);
    color: #2ed573;
}

.alert-warning {
    background: rgba(255, 165, 2, 0.15);
    border: 1px solid rgba(255, 165, 2, 0.3);
    color: #ffa502;
}

.alert-info {
    background: rgba(52, 152, 219, 0.15);
    border: 1px solid rgba(52, 152, 219, 0.3);
    color: #3498db;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: 12px 24px;
    font-family: inherit;
    font-size: var(--font-size-base);
    font-weight: 600;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: var(--transition-fast);
    text-decoration: none;
    min-height: 48px; /* Touch-friendly */
}

/* Buttons in grids should fill their cells */
.grid .btn {
    width: 100%;
}

.btn-primary {
    background: var(--color-primary);
    color: var(--color-bg);
}

.btn-primary:hover {
    background: var(--color-primary-hover);
    color: var(--color-bg);
}

.btn-secondary {
    background: var(--color-surface-elevated);
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover {
    background: var(--color-border);
    color: var(--color-text);
}

.btn-danger {
    background: var(--color-danger);
    color: white;
}

.btn-danger:hover {
    background: #ff5e6c;
    color: white;
}

.btn-ghost {
    background: transparent;
    color: var(--color-text-muted);
}

.btn-ghost:hover {
    background: var(--color-surface-elevated);
    color: var(--color-text);
}

.btn-sm {
    padding: 8px 16px;
    font-size: var(--font-size-sm);
    min-height: 40px;
}

.btn-lg {
    padding: 16px 32px;
    font-size: var(--font-size-lg);
}

.btn-block {
    width: 100%;
}

.btn-icon {
    width: 48px;
    height: 48px;
    padding: 0;
    border-radius: var(--radius-full);
}

/* Forms */
.form-group {
    margin-bottom: var(--space-lg);
}

.form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: var(--space-sm);
    color: var(--color-text);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    font-family: inherit;
    font-size: var(--font-size-base);
    background: var(--color-surface-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    min-height: 52px; /* Touch-friendly */
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-dim);
}

.form-group input::placeholder {
    color: var(--color-text-dim);
}

.form-group textarea {
    min-height: 120px;
    resize: vertical;
}

.form-group.has-error input,
.form-group.has-error select,
.form-group.has-error textarea {
    border-color: var(--color-danger);
}

.error-text {
    display: block;
    color: var(--color-danger);
    font-size: var(--font-size-sm);
    margin-top: var(--space-xs);
}

/* Date row - side by side date inputs */
.date-row {
    display: flex;
    gap: var(--space-md);
}

.date-row .form-group.half {
    flex: 1;
    margin-bottom: var(--space-lg);
}

.date-row .form-group.half label small {
    color: var(--color-text-muted);
    font-weight: 400;
}

.form-help {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
    margin-top: var(--space-xs);
}

/* Checkbox */
.checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    cursor: pointer;
    user-select: none;
}

.checkbox-label input[type="checkbox"] {
    width: 20px;
    height: 20px;
    min-height: 20px;
    accent-color: var(--color-primary);
}

/* Metrics Grid (for exercise tracking options) */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-md);
}

.metric-checkbox {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md) var(--space-lg);
    background: var(--color-surface-elevated);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all 0.2s;
    text-align: left;
    position: relative;
}

.metric-checkbox:hover {
    border-color: var(--color-primary);
}

.metric-checkbox:has(input:checked) {
    border-color: var(--color-primary);
    background: var(--color-primary-dim);
}

.metric-checkbox input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.metric-icon {
    font-size: 1.75rem;
    flex-shrink: 0;
    width: 40px;
    text-align: center;
}

.metric-text {
    display: flex;
    flex-direction: column;
    flex: 1;
}

.metric-label {
    font-weight: 600;
    line-height: 1.2;
}

.metric-desc {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    line-height: 1.2;
}

.metric-checkbox:has(input:checked) .metric-icon {
    transform: scale(1.1);
}

/* Cards */
.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.card-header {
    padding: var(--space-md) var(--space-lg);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
}

.card-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin: 0;
}

.card-body {
    padding: var(--space-lg);
}

.card-footer {
    padding: var(--space-md) var(--space-lg);
    border-top: 1px solid var(--color-border);
    background: var(--color-surface-elevated);
}

/* Stats Cards */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}

/* 3-column variant for pages with 3 stat cards */
.stats-grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

.stat-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    text-align: center;
}

.stat-value {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1;
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin-top: var(--space-xs);
}

/* List Items */
.list-group {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.list-item {
    display: flex;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: var(--space-sm) var(--space-md);
    padding: var(--space-md) var(--space-lg);
    border-bottom: 1px solid var(--color-border);
    color: var(--color-text);
    transition: background var(--transition-fast);
}

.list-item:last-child {
    border-bottom: none;
}

.list-item:hover {
    background: var(--color-surface-elevated);
}

.list-item-icon {
    font-size: 1.5rem;
    width: 32px;
    flex-shrink: 0;
    text-align: center;
    padding-top: 2px;
}

.list-item-content {
    flex: 1;
    min-width: 200px;
}

.list-item-title {
    font-weight: 600;
    margin-bottom: 2px;
}

.list-item-subtitle {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.list-item-actions {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    flex-shrink: 0;
}

.list-item-action {
    color: var(--color-text-dim);
}

/* Compact list item variant for workout history */
.list-item-compact {
    display: grid;
    grid-template-columns: auto 1fr auto;
    grid-template-rows: auto auto;
    gap: var(--space-xs) var(--space-md);
    padding: var(--space-md) var(--space-lg);
    border-bottom: 1px solid var(--color-border);
    color: var(--color-text);
    transition: background var(--transition-fast);
}

.list-item-compact:last-child {
    border-bottom: none;
}

.list-item-compact:hover {
    background: var(--color-surface-elevated);
}

.list-item-compact .list-item-icon {
    grid-row: 1 / 3;
    align-self: center;
}

.list-item-compact .list-item-content {
    grid-column: 2;
    grid-row: 1;
    min-width: 0;
}

.list-item-compact .list-item-actions {
    grid-column: 3;
    grid-row: 1 / 3;
    align-self: center;
}

/* Workout History Item */
.workout-history-item {
    display: flex;
    align-items: stretch;
    border-bottom: 1px solid var(--color-border);
    transition: background var(--transition-fast);
}

.workout-history-item:last-child {
    border-bottom: none;
}

.workout-history-item:hover {
    background: var(--color-surface-elevated);
}

.workout-history-link {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    flex: 1;
    min-width: 0;
    padding: var(--space-md) var(--space-lg);
    text-decoration: none;
    color: inherit;
    transition: background var(--transition-fast);
}

/* Standalone workout-history-link (used in dashboards) */
.list-group > .workout-history-link {
    border-bottom: 1px solid var(--color-border);
}

.list-group > .workout-history-link:last-child {
    border-bottom: none;
}

.workout-history-link:hover {
    background: var(--color-surface-elevated);
}

.workout-history-icon {
    font-size: 1.25rem;
    flex-shrink: 0;
}

.workout-history-content {
    flex: 1;
    min-width: 0;
}

.workout-history-title {
    font-weight: 600;
    margin-bottom: 2px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.workout-history-meta {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.workout-history-status {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    flex-shrink: 0;
}

.workout-history-rating {
    font-size: var(--font-size-sm);
}

.workout-history-actions {
    display: flex;
    flex-direction: row !important;
    flex-wrap: nowrap;
    align-items: center;
    gap: 0;
    padding: var(--space-sm) var(--space-md);
    flex-shrink: 0;
}

.workout-action-form {
    display: inline-block;
}

.workout-action-form .btn {
    opacity: 0.6;
    padding: var(--space-xs) var(--space-sm);
}

.workout-action-form .btn:hover {
    opacity: 1;
}

.workout-action-form:last-child .btn {
    color: var(--color-danger);
}

/* Responsive: Stack workout history on very small screens */
@media (max-width: 500px) {
    .workout-history-link {
        flex-wrap: wrap;
        gap: var(--space-sm);
    }
    
    .workout-history-content {
        flex-basis: calc(100% - 48px);
    }
    
    .workout-history-title {
        white-space: normal;
    }
    
    .workout-history-meta {
        white-space: normal;
    }
    
    .workout-history-status {
        flex-basis: 100%;
        padding-left: 40px;
        padding-top: var(--space-xs);
    }
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: var(--space-2xl);
}

.empty-state-icon {
    font-size: 4rem;
    margin-bottom: var(--space-md);
    opacity: 0.5;
}

.empty-state-title {
    font-size: var(--font-size-xl);
    margin-bottom: var(--space-sm);
}

.empty-state-text {
    color: var(--color-text-muted);
    margin-bottom: var(--space-lg);
}

/* Page Header */
.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
    flex-wrap: wrap;
}

.page-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
}

.page-subtitle {
    color: var(--color-text-muted);
    margin-top: var(--space-xs);
}

/* Exercise Card */
.exercise-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: border-color var(--transition-fast);
}

.exercise-card:hover {
    border-color: var(--color-primary);
}

.exercise-card-image {
    aspect-ratio: 16/9;
    background: var(--color-surface-elevated);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
}

.exercise-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.exercise-card-body {
    padding: var(--space-md);
}

.exercise-card-title {
    font-weight: 600;
    margin-bottom: var(--space-xs);
}

.exercise-card-meta {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

/* Badge */
.badge {
    display: inline-block;
    padding: 4px 10px;
    font-size: var(--font-size-xs);
    font-weight: 600;
    border-radius: var(--radius-full);
    background: var(--color-surface-elevated);
    color: var(--color-text-muted);
}

.badge-primary {
    background: var(--color-primary-dim);
    color: var(--color-primary);
}

.badge-success {
    background: rgba(46, 213, 115, 0.15);
    color: var(--color-success);
}

.badge-warning {
    background: rgba(255, 165, 2, 0.15);
    color: var(--color-warning);
}

.badge-danger {
    background: rgba(255, 71, 87, 0.15);
    color: var(--color-danger);
}

.badge-outline {
    background: transparent;
    border: 1px solid var(--color-border);
    color: var(--color-text-muted);
}

.badge-secondary {
    background: var(--color-surface-elevated);
    color: var(--color-text-muted);
}

/* Exercise Set Row */
.sets-container {
    overflow-x: visible;
}

.set-row {
    display: grid;
    grid-template-columns: 40px 1fr 1fr 52px;
    gap: var(--space-sm);
    align-items: center;
    padding: var(--space-sm) 0;
    border-bottom: 1px solid var(--color-border);
}

.set-row.has-timer {
    grid-template-columns: 40px 1fr 1fr 52px 40px;
}

/* Dynamic set rows (for exercises with variable metrics) */
.set-row-dynamic {
    display: flex;
    gap: var(--space-xs);
    align-items: center;
    padding: var(--space-sm) 0;
    border-bottom: 1px solid var(--color-border);
}

/* Set number column - fixed width, centered */
.set-row-dynamic > .set-number {
    width: 40px;
    min-width: 40px;
    max-width: 40px;
    flex-shrink: 0;
    text-align: center;
}

/* Metric columns - flexible, stretch to fill */
.set-row-dynamic > .set-col-metric {
    flex: 1;
    min-width: 50px;
}

/* Action columns (checkbox, timer) - fixed compact width */
.set-row-dynamic > .set-col-action {
    width: 44px;
    min-width: 44px;
    max-width: 44px;
    flex-shrink: 0;
    display: flex;
    justify-content: center;
    align-items: center;
}

.set-row-dynamic:last-child {
    border-bottom: none;
}

.set-row-dynamic .set-input {
    width: 100%;
    min-width: 50px;
    padding: 8px 4px;
    text-align: center;
}

.set-row-dynamic.set-header {
    background: var(--color-surface-elevated);
    font-weight: 600;
    font-size: 0.7rem;
    text-transform: uppercase;
    color: var(--color-text-muted);
}

.set-row-dynamic.set-header > div {
    text-align: center;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.set-row-dynamic.set-header > div:first-child {
    text-align: left;
}

/* Time input styling */
.time-input {
    font-family: 'SF Mono', 'Monaco', monospace;
    letter-spacing: 1px;
}

.set-timer-header {
    text-align: center;
    font-size: 0.75rem;
}

.set-timer-btn {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: none;
    background: var(--color-surface-elevated);
    color: var(--color-text-muted);
    cursor: pointer;
    transition: all 0.2s;
    font-size: 1rem;
}

.set-timer-btn:hover {
    background: var(--color-primary);
    color: white;
}

/* Delete exercise button */
.btn-delete-exercise {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: none;
    background: transparent;
    color: var(--color-text-muted);
    cursor: pointer;
    transition: all 0.2s;
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
}

.btn-delete-exercise:hover {
    background: var(--color-danger);
    color: white;
}

.btn-delete-exercise:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.set-row:last-child {
    border-bottom: none;
}

.set-number {
    font-weight: 700;
    font-size: var(--font-size-sm);
    color: var(--color-primary);
    text-align: center;
}

.set-input {
    width: 100%;
    padding: 8px 6px;
    font-size: var(--font-size-base);
    text-align: center;
    background: var(--color-surface-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text);
    min-height: 44px;
    box-sizing: border-box;
}

.set-input:focus {
    outline: none;
    border-color: var(--color-primary);
}

.set-complete {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-full);
    border: 2px solid var(--color-border);
    background: transparent;
    flex-shrink: 0;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    transition: var(--transition-fast);
}

.set-complete.completed {
    background: var(--color-success);
    border-color: var(--color-success);
}

/* Mobile adjustments for set rows */
@media (max-width: 400px) {
    .set-row {
        grid-template-columns: 32px 1fr 1fr 40px;
        gap: var(--space-xs);
    }
    
    .set-row.has-timer {
        grid-template-columns: 32px 1fr 1fr 40px 32px;
    }
    
    .set-input {
        padding: 6px 4px;
        font-size: var(--font-size-sm);
        min-height: 40px;
    }
    
    .set-timer-btn {
        width: 32px;
        height: 32px;
        font-size: 0.875rem;
    }
    
    .set-complete {
        width: 36px;
        height: 36px;
    }
    
    .set-header {
        font-size: var(--font-size-xs);
    }
}

/* Tabs */
.tabs {
    display: flex;
    gap: var(--space-xs);
    background: var(--color-surface);
    padding: var(--space-xs);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-lg);
    overflow-x: auto;
}

.tab {
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    font-weight: 500;
    color: var(--color-text-muted);
    white-space: nowrap;
    transition: var(--transition-fast);
    cursor: pointer;
    background: none;
    border: none;
    font-size: var(--font-size-base);
}

.tab:hover {
    color: var(--color-text);
}

.tab.active {
    background: var(--color-primary);
    color: var(--color-bg);
}

/* Video Embed */
.video-embed {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    overflow: hidden;
    border-radius: var(--radius-md);
    background: var(--color-surface-elevated);
}

.video-embed iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
}

/* Modals */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: flex-end;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-fast);
}

.modal-overlay.show {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--color-surface);
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    transform: translateY(100%);
    transition: transform var(--transition-normal);
}

.modal-overlay.show .modal {
    transform: translateY(0);
}

.modal-header {
    padding: var(--space-lg);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
}

.modal-close {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    border: none;
    background: var(--color-surface-elevated);
    color: var(--color-text);
    cursor: pointer;
    font-size: 1.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-body {
    padding: var(--space-lg);
}

.modal-footer {
    padding: var(--space-lg);
    border-top: 1px solid var(--color-border);
    display: flex;
    gap: var(--space-md);
}

/* ============================================
   Auth Pages
   ============================================ */

.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-lg);
    background: linear-gradient(135deg, var(--color-bg) 0%, #1a1a2e 100%);
}

.auth-container {
    width: 100%;
    max-width: 420px;
}

.auth-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
}

.auth-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--space-xl);
}

.auth-logo .logo-icon {
    font-size: 2.5rem;
}

.auth-title {
    text-align: center;
    margin-bottom: var(--space-xs);
}

.auth-subtitle {
    text-align: center;
    color: var(--color-text-muted);
    margin-bottom: var(--space-xl);
}

.auth-form {
    margin-bottom: var(--space-lg);
}

.auth-links {
    text-align: center;
    color: var(--color-text-muted);
}

.auth-footer {
    text-align: center;
    margin-top: var(--space-lg);
    color: var(--color-text-dim);
    font-size: var(--font-size-sm);
}

.demo-accounts {
    margin-top: var(--space-xl);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--color-border);
}

.demo-title {
    text-align: center;
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin-bottom: var(--space-md);
}

.demo-list {
    display: flex;
    gap: var(--space-sm);
    justify-content: center;
}

.demo-btn {
    padding: 8px 16px;
    background: var(--color-surface-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text-muted);
    cursor: pointer;
    font-size: var(--font-size-sm);
    transition: var(--transition-fast);
}

.demo-btn:hover {
    background: var(--color-border);
    color: var(--color-text);
}

/* ============================================
   Error Pages
   ============================================ */

.error-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--space-lg);
}

.error-container {
    max-width: 400px;
}

.error-code {
    font-size: 8rem;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1;
    opacity: 0.3;
}

.error-container h1 {
    margin-bottom: var(--space-md);
}

.error-container p {
    color: var(--color-text-muted);
    margin-bottom: var(--space-xl);
}

/* ============================================
   Tables
   ============================================ */

.table-container {
    overflow-x: auto;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
}

table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    padding: var(--space-md);
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}

th {
    background: var(--color-surface-elevated);
    font-weight: 600;
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-text-muted);
}

tr:last-child td {
    border-bottom: none;
}

tr:hover td {
    background: var(--color-surface-elevated);
}

/* ============================================
   Utilities
   ============================================ */

.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }

.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }

.py-sm { padding-top: var(--space-sm); padding-bottom: var(--space-sm); }
.py-md { padding-top: var(--space-md); padding-bottom: var(--space-md); }
.py-lg { padding-top: var(--space-lg); padding-bottom: var(--space-lg); }
.py-xl { padding-top: var(--space-xl); padding-bottom: var(--space-xl); }

.text-center { text-align: center; }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }

.grid { display: grid; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }

.hidden { display: none !important; }
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

/* ============================================
   Desktop Styles (768px+)
   ============================================ */

@media (min-width: 768px) {
    :root {
        --bottom-nav-height: 0px;
    }
    
    .app-header {
        display: none;
    }
    
    .sidebar {
        transform: translateX(0);
    }
    
    .main-content {
        margin-top: 0;
        margin-left: var(--sidebar-width);
        padding: var(--space-xl);
        padding-bottom: var(--space-xl);
    }
    
    .bottom-nav {
        display: none;
    }
    
    .sidebar-overlay {
        display: none;
    }
    
    .menu-toggle {
        display: none;
    }
    
    .modal {
        border-radius: var(--radius-xl);
        margin: auto;
    }
    
    .modal-overlay {
        align-items: center;
        padding: var(--space-lg);
    }
}

/* Large Desktop (1200px+) */
@media (min-width: 1200px) {
    .main-content {
        padding: var(--space-2xl);
        max-width: calc(1400px + var(--sidebar-width));
    }
}

/* ============================================
   Dark Mode Adjustments (already dark by default)
   ============================================ */

@media (prefers-color-scheme: light) {
    /* Keep dark theme regardless of system preference for gym use */
}

/* ============================================
   Animations
   ============================================ */

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideUp {
    from { 
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.animate-fade-in {
    animation: fadeIn var(--transition-normal) ease;
}

.animate-slide-up {
    animation: slideUp var(--transition-normal) ease;
}

/* Skeleton loading */
.skeleton {
    background: linear-gradient(
        90deg,
        var(--color-surface-elevated) 25%,
        var(--color-border) 50%,
        var(--color-surface-elevated) 75%
    );
    background-size: 200% 100%;
    animation: skeleton 1.5s infinite;
    border-radius: var(--radius-sm);
}

@keyframes skeleton {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* ============================================
   Program Sessions List
   ============================================ */

.program-sessions-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    padding: var(--space-md);
}

.program-session-card {
    background: var(--color-surface-elevated);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    text-align: center;
}

.session-day-header {
    margin-bottom: var(--space-md);
}

.session-day-badge {
    display: inline-block;
    font-weight: 700;
    color: var(--color-primary);
    font-size: var(--font-size-xl);
    padding: var(--space-xs) var(--space-md);
    background: var(--color-primary-dim);
    border-radius: var(--radius-md);
}

.session-content {
    margin-bottom: var(--space-lg);
}

.session-name {
    font-weight: 600;
    font-size: var(--font-size-lg);
    color: var(--color-text);
    margin-bottom: var(--space-xs);
    line-height: 1.3;
}

.session-subtitle {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin-bottom: var(--space-sm);
}

.session-meta {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--space-sm);
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    align-items: center;
}

.session-meta .meta-separator {
    color: var(--color-text-dim);
}

.session-notes {
    margin-top: var(--space-md);
    padding: var(--space-sm) var(--space-md);
    background: var(--color-surface);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    line-height: 1.4;
    text-align: left;
}

.session-actions {
    display: flex;
    gap: var(--space-sm);
    justify-content: center;
}

.session-actions .btn {
    flex: 1;
    max-width: 160px;
}

/* Desktop: side-by-side layout */
@media (min-width: 768px) {
    .program-session-card {
        display: grid;
        grid-template-columns: auto 1fr auto;
        gap: var(--space-lg);
        text-align: left;
        align-items: center;
    }
    
    .session-day-header {
        margin-bottom: 0;
    }
    
    .session-content {
        margin-bottom: 0;
    }
    
    .session-meta {
        justify-content: flex-start;
    }
    
    .session-actions {
        flex-direction: column;
    }
    
    .session-actions .btn {
        max-width: none;
        white-space: nowrap;
    }
}

/* ============================================
   Fitness Diary Styles
   ============================================ */

/* Date Navigation */
.diary-date-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-lg);
}

.date-nav-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--color-surface-elevated);
    color: var(--color-text);
    text-decoration: none;
    transition: var(--transition-fast);
}

.date-nav-btn:hover {
    background: var(--color-primary);
    color: var(--color-bg);
}

.date-nav-btn.disabled {
    opacity: 0.3;
    pointer-events: none;
}

.date-nav-arrow {
    font-size: 1.25rem;
    font-weight: 600;
}

.diary-date-center {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-xs);
}

.diary-date-center input[type="date"] {
    background: var(--color-surface-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-sm) var(--space-md);
    color: var(--color-text);
    color-scheme: dark;
    font-size: var(--font-size-base);
    cursor: pointer;
    text-align: center;
}

.date-today-link {
    font-size: var(--font-size-sm);
    color: var(--color-primary);
    text-decoration: none;
}

.date-today-link:hover {
    text-decoration: underline;
}

/* Diary Grid Layout */
.diary-grid {
    display: grid;
    gap: var(--space-lg);
}

@media (min-width: 1024px) {
    .diary-grid {
        grid-template-columns: 1fr 1fr;
    }
}

.diary-column {
    display: flex;
    flex-direction: column;
}

/* Diary Metrics Grid */
.diary-metrics-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
}

@media (min-width: 768px) {
    .diary-metrics-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Mood Selector */
.mood-selector {
    display: flex;
    gap: var(--space-xs);
    flex-wrap: nowrap;
    justify-content: center;
}

.mood-option {
    display: flex !important;
    flex-direction: row !important;
    align-items: center !important;
    justify-content: center !important;
    gap: 6px;
    padding: var(--space-sm);
    background: var(--color-surface-elevated);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s;
    flex: 1 1 0;
    min-width: 0;
    flex: 1;
    min-width: 60px;
}

.mood-option:hover {
    border-color: var(--color-primary);
}

.mood-option.selected {
    border-color: var(--color-primary);
    background: var(--color-primary-dim);
}

.mood-option input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.mood-icon {
    font-size: 1.25rem;
    flex-shrink: 0;
}

.mood-label {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text-muted);
    white-space: nowrap;
}

/* Energy Slider */
.energy-slider {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.energy-slider input[type="range"] {
    flex: 1;
    -webkit-appearance: none;
    height: 8px;
    background: var(--color-border);
    border-radius: var(--radius-full);
    outline: none;
}

.energy-slider input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 24px;
    height: 24px;
    background: var(--color-primary);
    border-radius: 50%;
    cursor: pointer;
    transition: transform 0.2s;
}

.energy-slider input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.1);
}

.energy-value {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--color-primary);
    min-width: 30px;
    text-align: center;
}

/* Supplements Checklist */
.supplements-checklist {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.supplement-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-sm) var(--space-md);
    background: var(--color-surface-elevated);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s;
}

.supplement-item:hover {
    background: var(--color-surface);
}

.supplement-item.taken {
    background: var(--color-primary-dim);
}

.supplement-checkbox {
    width: 20px;
    height: 20px;
    accent-color: var(--color-primary);
}

.supplement-info {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.supplement-name {
    font-weight: 500;
}

.supplement-dosage {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.supplement-check {
    color: var(--color-success);
    font-size: var(--font-size-lg);
    font-weight: bold;
}

/* Supplements Tracker (Habit-style) */
.supplements-tracker {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.supplement-row {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-sm) var(--space-md);
    background: var(--color-surface-elevated);
    border-radius: var(--radius-md);
    transition: background 0.2s;
}

.supplement-row:hover {
    background: var(--color-surface);
}

.supplement-row .supplement-info {
    flex: 1 1 auto;
    min-width: 120px;
    max-width: 280px;
}

.supplement-row .supplement-name {
    font-weight: 500;
}

.supplement-row .supplement-dosage {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
}

.supplement-frequency {
    font-size: var(--font-size-xs);
    color: var(--color-primary);
    font-weight: 500;
}

.supplement-week-circles {
    display: flex;
    gap: var(--space-xs);
    flex: 1;
    justify-content: flex-end;
}

.supplement-day {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    width: 32px;
}

.supplement-circle {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: 2px solid var(--color-text-muted);
    background: var(--color-surface-elevated);
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
}

.supplement-circle:hover:not([disabled]) {
    border-color: var(--color-primary);
    background: var(--color-primary-dim);
    transform: scale(1.1);
}

.supplement-circle.completed {
    background: var(--color-primary);
    border-color: var(--color-primary);
}

.supplement-circle.completed svg {
    width: 14px;
    height: 14px;
    color: var(--color-bg);
}

.supplement-circle.partial {
    background: #ffa502;
    border-color: #ffa502;
}

.supplement-circle .amount-indicator {
    font-size: 8px;
    font-weight: 600;
    color: var(--color-bg);
}

.supplement-circle.future {
    opacity: 0.4;
    cursor: not-allowed;
}

.supplement-circle.loading {
    opacity: 0.5;
    pointer-events: none;
    animation: pulse 1s infinite;
}

.supplement-circle[disabled] {
    cursor: not-allowed;
}

.supplement-day-label {
    font-size: 9px;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Photo Preview Grid */
.photo-preview-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-sm);
}

.photo-preview {
    position: relative;
    aspect-ratio: 1;
    border-radius: var(--radius-md);
    overflow: hidden;
}

.photo-preview img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.photo-category {
    position: absolute;
    bottom: 4px;
    left: 4px;
    background: rgba(0,0,0,0.7);
    color: white;
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
}

.photo-delete-form {
    position: absolute;
    top: 4px;
    right: 4px;
    margin: 0;
}

.photo-delete-btn {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: rgba(220, 53, 69, 0.9);
    color: white;
    border: none;
    cursor: pointer;
    font-size: 16px;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.2s;
}

.photo-preview:hover .photo-delete-btn {
    opacity: 1;
}

.photo-delete-btn:hover {
    background: rgba(220, 53, 69, 1);
}

/* Custom Metrics */
.custom-metrics-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.custom-metric-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    background: var(--color-surface-elevated);
    border-radius: var(--radius-md);
}

.custom-metric-icon {
    font-size: 1.1rem;
    flex-shrink: 0;
}

.custom-metric-name {
    font-weight: 500;
    font-size: var(--font-size-sm);
    white-space: nowrap;
    flex-shrink: 0;
}

.custom-metric-input {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    margin-left: auto;
    flex-shrink: 0;
}

.custom-metric-input input {
    width: 100px;
    text-align: right;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    color: var(--color-text);
    padding: 6px 10px;
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
}

.input-suffix {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    flex-shrink: 0;
}

/* Empty State Mini */
.empty-state-mini {
    text-align: center;
    padding: var(--space-md);
}

/* Form Row for side-by-side inputs */
.form-row {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
}

.form-row .form-group {
    flex: 1;
    min-width: 150px;
}

/* Diary Form */
.diary-form .form-group {
    margin-bottom: var(--space-md);
}

.diary-form .btn-block {
    margin-top: var(--space-md);
}

/* Markdown Content */
.markdown-content {
    line-height: 1.7;
}

.markdown-content h1,
.markdown-content h2,
.markdown-content h3,
.markdown-content h4,
.markdown-content h5,
.markdown-content h6 {
    margin-top: var(--space-lg);
    margin-bottom: var(--space-sm);
    font-weight: 600;
}

.markdown-content h1:first-child,
.markdown-content h2:first-child,
.markdown-content h3:first-child,
.markdown-content h4:first-child,
.markdown-content h5:first-child,
.markdown-content h6:first-child {
    margin-top: 0;
}

.markdown-content h1 { font-size: 1.75rem; }
.markdown-content h2 { font-size: 1.5rem; }
.markdown-content h3 { font-size: 1.25rem; }
.markdown-content h4 { font-size: 1.125rem; }
.markdown-content h5 { font-size: 1rem; }
.markdown-content h6 { font-size: 0.875rem; }

.markdown-content p {
    margin-bottom: var(--space-md);
}

.markdown-content ul,
.markdown-content ol {
    margin-bottom: var(--space-md);
    padding-left: var(--space-lg);
}

.markdown-content li {
    margin-bottom: var(--space-xs);
}

.markdown-content code {
    background: var(--color-surface-elevated);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    font-family: 'SF Mono', 'Monaco', 'Consolas', monospace;
    font-size: 0.875em;
}

.markdown-content pre {
    background: var(--color-surface-elevated);
    padding: var(--space-md);
    border-radius: var(--radius-md);
    overflow-x: auto;
    margin-bottom: var(--space-md);
}

.markdown-content pre code {
    background: none;
    padding: 0;
    font-size: 0.875rem;
}

.markdown-content blockquote {
    border-left: 4px solid var(--color-primary);
    padding-left: var(--space-md);
    margin: var(--space-md) 0;
    color: var(--color-text-muted);
    font-style: italic;
}

.markdown-content hr {
    border: none;
    border-top: 1px solid var(--color-border);
    margin: var(--space-lg) 0;
}

.markdown-content a {
    color: var(--color-primary);
    text-decoration: none;
}

.markdown-content a:hover {
    text-decoration: underline;
}

.markdown-content img {
    max-width: 100%;
    border-radius: var(--radius-md);
    margin: var(--space-sm) 0;
}

.markdown-content strong {
    font-weight: 600;
}

.markdown-content del {
    text-decoration: line-through;
    opacity: 0.7;
}

/* ============================================
   Habit Tracker Styles
   ============================================ */

/* Habits Page Layout */
.habits-page {
    display: grid;
    grid-template-columns: 1fr 360px;
    gap: var(--space-lg);
    min-height: calc(100vh - 120px);
}

@media (max-width: 1024px) {
    .habits-page {
        grid-template-columns: 1fr;
    }
    
    .habits-sidebar {
        display: none;
    }
}

/* Habits Main Panel */
.habits-main {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.habits-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-md) var(--space-lg);
    border-bottom: 1px solid var(--color-border);
}

.habits-header .page-title {
    font-size: var(--font-size-xl);
    margin: 0;
}

.habits-actions {
    display: flex;
    gap: var(--space-sm);
}

.btn-icon {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-surface-elevated);
    border: 1px solid var(--color-border);
    color: var(--color-text);
    cursor: pointer;
    font-size: var(--font-size-lg);
    transition: all 0.2s;
}

.btn-icon:hover {
    background: var(--color-border);
}

.btn-icon.btn-primary {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-bg);
}

.btn-icon.btn-primary:hover {
    background: var(--color-primary-hover);
}

/* Week Navigation */
.habit-week-nav {
    display: flex;
    align-items: center;
    padding: var(--space-md) var(--space-lg);
    border-bottom: 1px solid var(--color-border);
    gap: var(--space-sm);
}

.week-nav-arrow {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-muted);
    font-size: var(--font-size-xl);
    text-decoration: none;
    border-radius: var(--radius-sm);
    transition: all 0.2s;
}

.week-nav-arrow:hover {
    background: var(--color-surface-elevated);
    color: var(--color-text);
}

.week-days {
    display: flex;
    flex: 1;
    justify-content: space-around;
}

.week-day {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    min-width: 40px;
}

.week-day .day-name {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    text-transform: uppercase;
}

.week-day .day-number {
    font-size: var(--font-size-sm);
    font-weight: 500;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

.week-day.is-today .day-number {
    background: var(--color-primary);
    color: var(--color-bg);
}

.week-day.is-today .day-name {
    color: var(--color-primary);
}

/* Habits List */
.habits-list {
    padding: var(--space-md) 0;
}

.habit-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-md) var(--space-lg);
    border-bottom: 1px solid var(--color-border);
    transition: background 0.2s;
}

.habit-item:hover {
    background: var(--color-surface-elevated);
}

.habit-item.selected {
    background: rgba(0, 212, 170, 0.08);
}

.habit-item:last-child {
    border-bottom: none;
}

.habit-info {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    cursor: pointer;
    flex: 1;
    min-width: 0;
}

.habit-icon {
    width: 40px;
    height: 40px;
    background: var(--color-primary-dim);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xl);
    flex-shrink: 0;
}

.habit-details {
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
}

.habit-name {
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.habit-streak {
    display: flex;
    gap: var(--space-md);
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
}

.streak-current {
    color: var(--color-warning);
}

.streak-longest {
    color: var(--color-success);
}

.streak-total {
    color: var(--color-info);
}

/* Check-in Circles */
.habit-checkins {
    display: flex;
    gap: var(--space-sm);
    flex: 1;
    justify-content: space-between;
}

.checkin-day {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    flex: 1;
    max-width: 52px;
}

.checkin-day-label {
    font-size: 10px;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.checkin-circle {
    width: 100%;
    aspect-ratio: 1;
    border-radius: 50%;
    border: 2px solid var(--color-text-muted);
    background: var(--color-surface-elevated);
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
}

.checkin-circle:hover:not([disabled]) {
    border-color: var(--color-primary);
    background: var(--color-primary-dim);
    transform: scale(1.1);
}

.checkin-circle.completed {
    background: var(--color-primary);
    border-color: var(--color-primary);
}

.checkin-circle.completed svg {
    width: 18px;
    height: 18px;
    color: var(--color-bg);
}

.checkin-circle.before-start {
    opacity: 0.2;
    cursor: not-allowed;
}

.checkin-circle.future {
    opacity: 0.4;
    cursor: not-allowed;
}

.checkin-circle.loading {
    opacity: 0.5;
    pointer-events: none;
    animation: pulse 1s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 0.8; }
}

.checkin-circle[disabled] {
    cursor: not-allowed;
}

/* Partial completion indicator */
.checkin-circle.partial {
    background: #ffa502;
    border-color: #ffa502;
}

.checkin-circle .amount-indicator {
    font-size: 9px;
    font-weight: 600;
    color: var(--color-bg);
}

/* Amount Modal Styles */
.amount-modal-info {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
}

.amount-habit-icon {
    width: 40px;
    height: 40px;
    background: var(--color-primary-dim);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xl);
}

.amount-habit-name {
    font-weight: 600;
    font-size: var(--font-size-lg);
}

.amount-progress {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: var(--space-xs);
    margin-bottom: var(--space-lg);
    padding: var(--space-md);
    background: var(--color-surface-elevated);
    border-radius: var(--radius-md);
}

.amount-current {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--color-primary);
}

.amount-separator {
    font-size: var(--font-size-xl);
    color: var(--color-text-muted);
}

.amount-goal {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--color-text-muted);
}

.amount-unit {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin-left: var(--space-xs);
}

.amount-input-row {
    margin-bottom: var(--space-md);
}

.amount-input-wrapper {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-top: var(--space-xs);
}

.amount-input-wrapper input {
    flex: 1;
    background: var(--color-surface-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-sm) var(--space-md);
    color: var(--color-text);
    font-size: var(--font-size-lg);
}

.amount-input-wrapper input:focus {
    outline: none;
    border-color: var(--color-primary);
}

.amount-input-unit {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
    min-width: 50px;
}

/* Habits Sidebar */
.habits-sidebar {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

/* Stats Card */
.habit-stats-card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
}

.habit-stats-card .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
}

.stats-header {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
}

.stats-icon {
    width: 40px;
    height: 40px;
    background: var(--color-primary-dim);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xl);
}

.stats-name {
    flex: 1;
    font-size: var(--font-size-xl);
    font-weight: 600;
}

.stat-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.stat-item .stat-header {
    display: flex;
    align-items: center;
    gap: 6px;
}

.stat-item .stat-icon {
    font-size: var(--font-size-sm);
}

.stat-item .stat-label {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
}

.stat-item .stat-value {
    font-size: var(--font-size-xl);
    font-weight: 600;
}

.stat-item .stat-value small {
    font-size: var(--font-size-xs);
    font-weight: 400;
    color: var(--color-text-muted);
}

/* Calendar Widget */
.habit-calendar-widget {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
}

.calendar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-md);
}

.calendar-title {
    font-weight: 500;
}

.calendar-nav {
    width: 28px;
    height: 28px;
    border: none;
    background: transparent;
    color: var(--color-text-muted);
    font-size: var(--font-size-lg);
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: all 0.2s;
}

.calendar-nav:hover {
    background: var(--color-surface-elevated);
    color: var(--color-text);
}

.calendar-weekdays {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 2px;
    margin-bottom: var(--space-sm);
}

.calendar-weekdays span {
    text-align: center;
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    padding: 4px 0;
}

.calendar-days {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 2px;
}

.calendar-day {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    position: relative;
    border-radius: 50%;
    justify-content: center;
    font-size: var(--font-size-sm);
    border-radius: 50%;
    position: relative;
    color: var(--color-text-muted);
}

.calendar-day.empty {
    visibility: hidden;
}

.calendar-day.today {
    color: var(--color-primary);
    font-weight: 600;
}

.calendar-day.has-checkins {
    background: var(--color-primary-dim);
    color: var(--color-text);
}

.calendar-day.all-complete {
    background: var(--color-primary);
    color: var(--color-bg);
}

.calendar-day .day-check {
    position: absolute;
    bottom: -2px;
    right: -2px;
    font-size: 10px;
    color: var(--color-bg);
}

/* Habit Log */
.habit-log {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
}

.log-title {
    font-size: var(--font-size-base);
    font-weight: 500;
    margin-bottom: var(--space-md);
}

.log-entries {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    max-height: 200px;
    overflow-y: auto;
}

.log-entry {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: var(--font-size-sm);
}

.log-icon {
    font-size: var(--font-size-base);
}

.log-text {
    flex: 1;
    color: var(--color-text-muted);
}

.log-date {
    font-size: var(--font-size-xs);
    color: var(--color-text-dim);
}

.log-empty {
    color: var(--color-text-dim);
    font-size: var(--font-size-sm);
    text-align: center;
    padding: var(--space-md);
}

/* Modal Sizes */
.modal-sm {
    max-width: 400px;
}

/* Habit Modal */
.habit-modal {
    width: 100%;
    max-width: 480px;
    border-radius: var(--radius-lg);
    max-height: 85vh;
    display: flex;
    flex-direction: column;
}

.habit-modal .modal-body {
    overflow-y: auto;
    overflow-x: visible;
}

.habit-name-row {
    display: flex;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}

.emoji-picker-wrapper {
    position: relative;
    flex-shrink: 0;
}

.emoji-picker-trigger {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-lg);
    background: var(--color-primary-dim);
    border: 2px dashed var(--color-border);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s;
    flex-shrink: 0;
    position: relative;
}

.emoji-picker-trigger:hover {
    border-color: var(--color-primary);
}

.emoji-picker-trigger #selectedEmoji {
    font-size: 28px;
}

.emoji-picker-trigger .emoji-edit-icon {
    position: absolute;
    bottom: 4px;
    right: 4px;
    font-size: 10px;
    background: var(--color-surface);
    padding: 2px 4px;
    border-radius: var(--radius-sm);
}

.habit-name-input {
    flex: 1;
    background: var(--color-surface-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    font-size: var(--font-size-lg);
    color: var(--color-text);
}

.habit-name-input:focus {
    outline: none;
    border-color: var(--color-primary);
}

/* Emoji Picker */
.emoji-picker {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    margin-top: var(--space-xs);
    background: var(--color-surface-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-sm);
    z-index: 1001;
    box-shadow: var(--shadow-lg);
    width: 280px;
}

.emoji-picker.show {
    display: block;
}

.emoji-grid {
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    gap: 4px;
}

.emoji-option {
    width: 36px;
    height: 36px;
    border: none;
    background: transparent;
    font-size: 20px;
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: background 0.2s;
}

.emoji-option:hover {
    background: var(--color-border);
}

/* Frequency Tabs */
.frequency-tabs {
    display: flex;
    background: var(--color-surface-elevated);
    border-radius: var(--radius-md);
    padding: 4px;
    margin-bottom: var(--space-md);
}

.freq-tab {
    flex: 1;
    padding: var(--space-sm) var(--space-md);
    border: none;
    background: transparent;
    color: var(--color-text-muted);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: var(--font-size-sm);
    transition: all 0.2s;
}

.freq-tab:hover {
    color: var(--color-text);
}

.freq-tab.active {
    background: var(--color-primary);
    color: var(--color-bg);
}

/* Day Picker */
.day-picker {
    margin-bottom: var(--space-md);
}

.day-buttons {
    display: flex;
    gap: var(--space-xs);
    flex-wrap: wrap;
}

.day-btn {
    cursor: pointer;
}

.day-btn input {
    display: none;
}

.day-btn span {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--color-surface-elevated);
    border: 2px solid var(--color-border);
    font-size: var(--font-size-sm);
    font-weight: 500;
    transition: all 0.2s;
}

.day-btn input:checked + span {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-bg);
}

.day-btn:hover span {
    border-color: var(--color-primary);
}

/* Interval Input */
.interval-input {
    margin-top: var(--space-md);
}

.interval-row {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.interval-row input[type="number"] {
    width: 70px;
    background: var(--color-surface-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-sm) var(--space-md);
    color: var(--color-text);
    font-size: var(--font-size-base);
    text-align: center;
}

.interval-row input[type="number"]:focus {
    outline: none;
    border-color: var(--color-primary);
}

.interval-row span {
    color: var(--color-text);
    font-size: var(--font-size-base);
}

/* Goal Amount Row */
.goal-amount-row {
    display: flex;
    gap: var(--space-sm);
    margin-top: var(--space-sm);
}

.goal-amount-row input {
    flex: 1;
    background: var(--color-surface-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-sm) var(--space-md);
    color: var(--color-text);
    font-size: var(--font-size-base);
}

.goal-amount-row input::placeholder {
    color: var(--color-text-muted);
}

.goal-amount-row input:focus {
    outline: none;
    border-color: var(--color-primary);
}

/* Check Mode, Auto Increment, and Minimum Amount Rows */
.check-mode-row,
.auto-increment-row,
.minimum-amount-row {
    margin-top: var(--space-sm);
}

.check-mode-row select,
.auto-increment-row input,
.minimum-amount-row input {
    width: 100%;
    background: var(--color-surface-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-sm) var(--space-md);
    color: var(--color-text);
    font-size: var(--font-size-base);
    margin-top: 4px;
}

.check-mode-row select:focus,
.auto-increment-row input:focus,
.minimum-amount-row input:focus {
    outline: none;
    border-color: var(--color-primary);
}

/* Form Elements */
.form-row {
    margin-bottom: var(--space-md);
    position: relative;
}

.form-row-inline {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
}

.form-row-inline .form-label {
    margin-bottom: 0;
    min-width: 80px;
}

.form-label {
    display: block;
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin-bottom: var(--space-xs);
}

.form-label-small {
    display: block;
    font-size: var(--font-size-xs);
    color: var(--color-text-dim);
    margin-bottom: var(--space-xs);
}

.form-select {
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    background: var(--color-surface-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text);
    font-size: var(--font-size-base);
    cursor: pointer;
}

.form-select:focus {
    outline: none;
    border-color: var(--color-primary);
}

/* Form Input (text, date, number) */
.form-input,
input[type="date"],
input[type="number"] {
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    background: var(--color-surface-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text);
    font-size: var(--font-size-base);
    font-family: var(--font-family);
}

.form-input:focus,
input[type="date"]:focus,
input[type="number"]:focus {
    outline: none;
    border-color: var(--color-primary);
}

/* Date input specific styling */
input[type="date"] {
    width: auto;
    min-width: 160px;
    cursor: pointer;
}

input[type="date"]::-webkit-calendar-picker-indicator {
    filter: invert(1);
    cursor: pointer;
}

/* Custom Date Picker */
.custom-datepicker-wrapper {
    position: static;
}

.datepicker-input-wrapper {
    position: relative;
    display: inline-flex;
    align-items: center;
}

.datepicker-input {
    width: 180px;
    padding: var(--space-sm) var(--space-md);
    padding-right: 40px;
    background: var(--color-surface-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text);
    font-size: var(--font-size-base);
    cursor: pointer;
}

.datepicker-input:focus {
    outline: none;
    border-color: var(--color-primary);
}

.datepicker-icon {
    position: absolute;
    right: 10px;
    width: 18px;
    height: 18px;
    pointer-events: none;
    color: var(--color-text-muted);
}

.custom-datepicker {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    background: var(--color-surface-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    z-index: 10000;
    box-shadow: var(--shadow-lg);
    width: 280px;
}

.custom-datepicker.show {
    display: block;
}

.datepicker-input-wrapper {
    cursor: pointer;
}

.datepicker-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-md);
}

.datepicker-title {
    font-weight: 500;
    font-size: var(--font-size-base);
}

.datepicker-nav {
    width: 28px;
    height: 28px;
    border: none;
    background: transparent;
    color: var(--color-text-muted);
    font-size: var(--font-size-lg);
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: all 0.2s;
}

.datepicker-nav:hover {
    background: var(--color-surface);
    color: var(--color-text);
}

.datepicker-weekdays {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 2px;
    margin-bottom: var(--space-sm);
}

.datepicker-weekdays span {
    text-align: center;
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    padding: 4px 0;
}

.datepicker-days {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 2px;
}

.datepicker-day {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-sm);
    border-radius: 50%;
    cursor: pointer;
    color: var(--color-text);
    border: none;
    background: transparent;
    transition: all 0.2s;
}

.datepicker-day:hover:not(.empty):not(.disabled) {
    background: var(--color-primary-dim);
}

.datepicker-day.empty {
    visibility: hidden;
}

.datepicker-day.today {
    border: 1px solid var(--color-primary);
}

.datepicker-day.selected {
    background: var(--color-primary);
    color: var(--color-bg);
}

.datepicker-day.disabled {
    color: var(--color-text-dim);
    cursor: not-allowed;
}

.help-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--color-border);
    font-size: 10px;
    color: var(--color-text-muted);
    cursor: help;
    vertical-align: middle;
    margin-left: 4px;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: var(--space-2xl);
}

.empty-icon {
    font-size: 48px;
    margin-bottom: var(--space-md);
}

.empty-state h3 {
    margin-bottom: var(--space-sm);
}

.empty-state p {
    color: var(--color-text-muted);
    margin-bottom: var(--space-lg);
}

/* Responsive adjustments */
/* Mobile: Stack habit items vertically */
@media (max-width: 900px) {
    .habit-item {
        flex-direction: column;
        align-items: stretch;
        gap: var(--space-md);
        padding: var(--space-md);
    }
    
    .habit-info {
        width: 100%;
    }
    
    .habit-checkins {
        justify-content: space-between;
    }
}

/* Small mobile: Reduce sizes */
@media (max-width: 600px) {
    .habit-week-nav {
        padding: var(--space-sm);
    }

    .week-day {
        min-width: 32px;
    }

    .checkin-day {
        max-width: 40px;
    }

    .checkin-day-label {
        font-size: 8px;
    }

    .habit-info {
        gap: var(--space-sm);
    }

    .habit-icon {
        width: 32px;
        height: 32px;
        font-size: var(--font-size-base);
    }

    .habit-checkins {
        gap: 4px;
    }
}

/* Very small screens: Further adjustments */
@media (max-width: 400px) {
    .habit-item {
        padding: var(--space-sm);
    }

    .habit-name {
        font-size: var(--font-size-sm);
    }

    .habit-streak {
        gap: var(--space-sm);
    }

    .checkin-day {
        max-width: 36px;
    }

    .checkin-day-label {
        font-size: 7px;
    }
}

/* ============================================
   Habits Menu Dropdown
   ============================================ */
.habits-menu-wrapper {
    position: relative;
}

.habits-dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: var(--space-xs);
    background: var(--color-surface-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    min-width: 200px;
    z-index: 100;
    overflow: hidden;
}

.habits-dropdown-menu.show {
    display: block;
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    border: none;
    background: transparent;
    color: var(--color-text);
    font-size: var(--font-size-sm);
    cursor: pointer;
    text-align: left;
    transition: background 0.2s;
}

.dropdown-item:hover {
    background: var(--color-surface);
}

.dropdown-icon {
    font-size: 16px;
}

/* ============================================
   Archived Habits Modal
   ============================================ */
.archived-habits-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    max-height: 400px;
    overflow-y: auto;
}

.archived-habit-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-sm) var(--space-md);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
}

.archived-habit-info {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.archived-habit-icon {
    font-size: 20px;
}

.archived-habit-name {
    font-weight: 500;
}

.empty-state-small {
    text-align: center;
    padding: var(--space-xl);
    color: var(--color-text-muted);
}

.loading-spinner {
    text-align: center;
    padding: var(--space-xl);
    color: var(--color-text-muted);
}

.error-message {
    text-align: center;
    padding: var(--space-md);
    color: var(--color-danger);
}

/* ============================================
   Modal Footer Layout
   ============================================ */
.modal-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.modal-footer-left {
    display: flex;
    gap: var(--space-sm);
}

.modal-footer-right {
    display: flex;
    gap: var(--space-sm);
    margin-left: auto;
}

.btn-outline-secondary {
    background: transparent;
    border: 1px solid var(--color-border);
    color: var(--color-text-muted);
}

.btn-outline-secondary:hover {
    border-color: var(--color-text-muted);
    color: var(--color-text);
}

.btn-outline-primary {
    background: transparent;
    border: 1px solid var(--color-primary);
    color: var(--color-primary);
}

.btn-outline-primary:hover {
    background: var(--color-primary);
    color: var(--color-bg);
}

.btn-sm {
    padding: var(--space-xs) var(--space-sm);
    font-size: var(--font-size-sm);
}

/* ============================================
   Exercise View Toggle
   ============================================ */
/* View Toggle Dropdown */
.view-toggle-dropdown {
    position: relative;
    display: inline-flex;
}

.view-toggle-trigger {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    height: 48px;
    padding: 0 var(--space-sm) 0 var(--space-md);
    background: var(--color-surface-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text);
    cursor: pointer;
    transition: var(--transition-fast);
}

.view-toggle-trigger:hover {
    border-color: var(--color-text-muted);
}

.view-toggle-trigger svg {
    width: 18px;
    height: 18px;
}

.view-toggle-chevron {
    opacity: 0.5;
    transition: transform 0.2s ease;
}

.view-toggle-dropdown.open .view-toggle-chevron {
    transform: rotate(180deg);
}

.view-toggle-icon {
    display: flex;
    align-items: center;
    justify-content: center;
}

.view-toggle-menu {
    display: none;
    position: fixed;
    z-index: 9999;
    min-width: 160px;
    background: var(--color-surface-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
    padding: var(--space-xs);
    flex-direction: column;
    gap: 2px;
}

.view-toggle-dropdown.open .view-toggle-menu {
    display: flex;
}

.view-toggle-option {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    width: 100%;
    padding: var(--space-sm) var(--space-sm);
    background: none;
    border: none;
    border-radius: var(--radius-sm);
    color: var(--color-text-muted);
    cursor: pointer;
    font-size: 0.875rem;
    transition: var(--transition-fast);
    text-align: left;
}

.view-toggle-option:hover {
    background: var(--color-surface);
    color: var(--color-text);
}

.view-toggle-option.active {
    background: var(--color-primary);
    color: var(--color-bg);
}

.view-toggle-option svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

/* ============================================
   Exercise List View
   ============================================ */
.exercise-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.exercise-list-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-sm) var(--space-md);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text);
    transition: border-color var(--transition-fast);
    position: relative;
}

.exercise-list-item:hover {
    border-color: var(--color-primary);
}

.exercise-list-item-image {
    width: 56px;
    height: 56px;
    min-width: 56px;
    border-radius: var(--radius-sm);
    background: var(--color-surface-elevated);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    font-size: 1.5rem;
}

.exercise-list-item-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.exercise-list-item-content {
    flex: 1;
    min-width: 0;
}

.exercise-list-item-title {
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.exercise-list-item-alt {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.exercise-list-item-badges {
    display: flex;
    gap: var(--space-sm);
    flex-shrink: 0;
}

/* List view merge mode */
body.merge-mode .exercise-list-item {
    padding-left: calc(var(--space-md) + 36px);
}

body.merge-mode .exercise-list-item .merge-checkbox {
    display: block;
    position: absolute;
    left: var(--space-sm);
    top: 50%;
    transform: translateY(-50%);
}

.exercise-list-item.selected {
    outline: 3px solid var(--color-primary);
    outline-offset: -3px;
}

body.merge-mode .exercise-list-item {
    cursor: pointer;
}

/* ============================================
   Exercise Group View (Accordion)
   ============================================ */
.exercise-groups {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.exercise-group {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.exercise-group-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-md) var(--space-lg);
    background: var(--color-surface-elevated);
    cursor: pointer;
    user-select: none;
    transition: background var(--transition-fast);
}

.exercise-group-header:hover {
    background: var(--color-border);
}

.exercise-group-title {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    font-weight: 600;
}

.exercise-group-count {
    background: var(--color-primary-dim);
    color: var(--color-primary);
    padding: 2px 10px;
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: 600;
}

.exercise-group-toggle {
    transition: transform var(--transition-fast);
    color: var(--color-text-muted);
}

.exercise-group.collapsed .exercise-group-toggle {
    transform: rotate(-90deg);
}

.exercise-group-body {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: var(--space-sm);
    padding: var(--space-md);
}

.exercise-group.collapsed .exercise-group-body {
    display: none;
}

.exercise-group--uncategorized .exercise-group-title {
    color: var(--color-text-muted);
}

/* Smaller cards in group view */
.exercise-group-body .exercise-card-image {
    aspect-ratio: 4/3;
}

/* See all link in group view */
.exercise-group-see-all {
    display: block;
    padding: var(--space-md) var(--space-lg);
    text-align: center;
    color: var(--color-primary);
    font-weight: 600;
    text-decoration: none;
    border-top: 1px solid var(--color-border);
    transition: background var(--transition-fast);
}

.exercise-group-see-all:hover {
    background: var(--color-surface-elevated);
}

.exercise-group.collapsed .exercise-group-see-all {
    display: none;
}

/* Mobile adjustments for list view */
@media (max-width: 600px) {
    .exercise-list-item-badges {
        display: none;
    }

    .exercise-list-item {
        padding: var(--space-sm);
    }

    .exercise-list-item-image {
        width: 48px;
        height: 48px;
        min-width: 48px;
    }
}

/* ===========================================
   Mobile Responsive Fixes for Fitness Diary
   =========================================== */

/* Page header actions (works on all screen sizes) */
.page-header-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

@media (max-width: 600px) {
    /* Prevent horizontal overflow on body */
    body {
        overflow-x: hidden;
    }
    
    /* Page header: stack title and buttons */
    .page-header {
        flex-direction: column;
        align-items: stretch;
        gap: var(--space-sm);
    }
    
    .page-header-actions {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-xs);
    }
    
    .page-header-actions .btn {
        padding: var(--space-sm);
        font-size: var(--font-size-sm);
        text-align: center;
        justify-content: center;
        white-space: nowrap;
    }
    
    /* Diary metrics grid: single column on very small screens */
    .diary-metrics-grid {
        grid-template-columns: 1fr;
    }
    
    /* Energy slider: ensure it fits */
    .energy-slider {
        max-width: 100%;
    }
    
    .energy-slider input[type="range"] {
        width: calc(100% - 40px);
    }
    
    /* Mood selector: wrap and smaller items */
    .mood-selector {
        flex-wrap: nowrap;
        gap: 4px;
    }
    
    .mood-option {
        display: flex !important;
        flex-direction: row !important;
        align-items: center !important;
        justify-content: center !important;
        flex: 1 1 0;
        min-width: 0;
        padding: 10px 8px;
        gap: 6px;
    }
    
    .mood-icon {
        font-size: 1.3rem;
    }
    
    /* Show number labels on mobile */
    .mood-label {
        display: inline !important;
        font-size: 0.9rem;
        font-weight: 600;
    }
    
    /* Supplement row: stack vertically */
    .supplement-row {
        flex-direction: column;
        align-items: stretch;
        gap: var(--space-sm);
        padding: var(--space-sm);
    }
    
    .supplement-row .supplement-info {
        flex: 0 0 auto;
        display: flex;
        align-items: center;
        gap: var(--space-sm);
        flex-wrap: wrap;
    }
    
    .supplement-row .supplement-name {
        white-space: normal;
        word-break: break-word;
    }
    
    /* Supplement week circles: spread across full width on mobile */
    .supplement-week-circles {
        justify-content: space-between;
        overflow-x: visible;
        padding-bottom: var(--space-xs);
        gap: 0;
    }
    
    .supplement-day {
        flex: 1;
        width: auto;
    }
    
    .supplement-circle {
        width: 32px;
        height: 32px;
    }
    
    /* Custom metric item: keep single row on mobile */
    .custom-metric-item {
        flex-wrap: nowrap;
        gap: var(--space-sm);
    }
    
    .custom-metric-input input {
        width: 80px;
    }
    
    /* Photo preview grid: 2 columns on mobile */
    .photo-preview-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    /* Photo upload form: stack */
    .card-body .flex.items-end {
        flex-direction: column;
        align-items: stretch;
    }
    
    .card-body .flex.items-end .form-group {
        width: 100%;
    }
    
    /* Stats grid: 2 columns on mobile */
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    /* Keep 3-column variant as 3 columns on mobile */
    .stats-grid-3 {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .stat-card {
        padding: var(--space-sm);
    }
    
    .stat-value {
        font-size: var(--font-size-lg);
    }
    
    /* Cards: reduce padding */
    .card-header,
    .card-body {
        padding: var(--space-sm);
    }
    
    .card-title {
        font-size: var(--font-size-base);
    }
    
    /* Supplement info: constrain width */
    .supplement-row .supplement-info {
        max-width: 100%;
        min-width: 0;
    }
    
    /* Diary grid: ensure single column */
    .diary-grid {
        display: block;
    }
    
    .diary-column {
        width: 100%;
    }
    
    /* Card content overflow protection */
    .card-body {
        overflow-x: hidden;
        word-wrap: break-word;
    }
    
    /* Form inputs: ensure they don't overflow */
    input[type="number"],
    input[type="text"],
    input[type="date"],
    textarea,
    select {
        max-width: 100%;
        box-sizing: border-box;
    }
    
    /* Button block: full width */
    .btn-block {
        width: 100%;
    }
}