/* ============================================
   KINETIK - Variables CSS & Reset
   ============================================ */

:root {
    /* Palette de couleurs - Sport premium */
    --color-primary: #FF6B35;
    --color-primary-dark: #E85A2A;
    --color-primary-light: #FF8C66;
    
    --color-bg-main: #FAFAFA;
    --color-bg-card: #FFFFFF;
    --color-bg-dark: #0A0E27;
    --color-bg-overlay: rgba(10, 14, 39, 0.6);
    
    --color-text-primary: #0A0E27;
    --color-text-secondary: #6B7280;
    --color-text-light: #9CA3AF;
    --color-text-inverse: #FFFFFF;
    
    --color-border: #E5E7EB;
    --color-border-light: #F3F4F6;
    
    --color-success: #10B981;
    --color-warning: #F59E0B;
    --color-error: #EF4444;
    
    /* Typographie */
    --font-primary: 'Outfit', system-ui, -apple-system, sans-serif;
    --font-mono: 'Space Mono', monospace;
    
    /* Espacements */
    --spacing-xs: 0.5rem;
    --spacing-sm: 0.75rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Rayons de bordure */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
    
    /* Ombres */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Layout */
    --header-height: 64px;
    --nav-height: 72px;
    --max-width: 680px;
}

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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-primary);
    background: var(--color-bg-main);
    color: var(--color-text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Désactiver le tap highlight sur mobile */
button, a {
    -webkit-tap-highlight-color: transparent;
}

/* ============================================
   LAYOUT PRINCIPAL
   ============================================ */

.app-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    max-width: var(--max-width);
    margin: 0 auto;
    background: var(--color-bg-card);
    box-shadow: var(--shadow-lg);
}

/* Header */
.app-header {
    height: var(--header-height);
    padding: 0 var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--color-bg-dark);
    color: var(--color-text-inverse);
    position: sticky;
    top: 0;
    z-index: 100;
}

.app-logo {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: 0.05em;
    font-family: var(--font-mono);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: fadeInDown var(--transition-slow);
}

.header-date {
    font-size: 0.875rem;
    font-weight: 300;
    opacity: 0.8;
    font-family: var(--font-mono);
}

/* Main Content */
.app-main {
    flex: 1;
    padding: var(--spacing-lg);
    padding-bottom: calc(var(--nav-height) + var(--spacing-lg));
    overflow-y: auto;
    animation: fadeIn var(--transition-base);
}

/* ============================================
   NAVIGATION INFÉRIEURE
   ============================================ */

.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    max-width: var(--max-width);
    height: var(--nav-height);
    background: var(--color-bg-card);
    border-top: 1px solid var(--color-border);
    display: flex;
    justify-content: space-around;
    align-items: center;
    padding: var(--spacing-xs) var(--spacing-sm);
    z-index: 1000;
    box-shadow: 0 -4px 6px -1px rgba(0, 0, 0, 0.05);
}

.nav-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    padding: var(--spacing-xs);
    background: none;
    border: none;
    cursor: pointer;
    color: var(--color-text-light);
    transition: all var(--transition-fast);
    border-radius: var(--radius-md);
    position: relative;
}

.nav-item:active {
    transform: scale(0.95);
}

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

.nav-item.active .nav-icon {
    animation: bounce 0.5s;
}

.nav-icon {
    width: 24px;
    height: 24px;
    stroke-width: 2;
    transition: all var(--transition-fast);
}

.nav-item:hover .nav-icon {
    transform: translateY(-2px);
}

.nav-label {
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.02em;
}

/* Bouton principal (Entraînement) */
.nav-item-primary {
    background: var(--color-primary);
    color: var(--color-text-inverse);
    border-radius: var(--radius-full);
    padding: var(--spacing-sm);
    margin: 0 var(--spacing-xs);
    box-shadow: 0 4px 12px rgba(255, 107, 53, 0.3);
}

.nav-item-primary:hover {
    background: var(--color-primary-dark);
    box-shadow: 0 6px 16px rgba(255, 107, 53, 0.4);
}

.nav-item-primary .nav-icon {
    width: 28px;
    height: 28px;
}

/* ============================================
   COMPOSANTS - CARTES
   ============================================ */

.card {
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    border: 1px solid var(--color-border-light);
    transition: all var(--transition-base);
    animation: fadeInUp var(--transition-base);
}

.card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

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

.card-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text-primary);
    letter-spacing: -0.01em;
}

.card-subtitle {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    margin-top: 4px;
}

.card-content {
    color: var(--color-text-secondary);
    line-height: 1.7;
}

.card-footer {
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border-light);
}

/* Variantes de cartes */
.card-compact {
    padding: var(--spacing-md);
}

.card-highlight {
    border-color: var(--color-primary);
    background: linear-gradient(135deg, rgba(255, 107, 53, 0.05) 0%, rgba(255, 140, 102, 0.02) 100%);
}

/* ============================================
   COMPOSANTS - BOUTONS
   ============================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-md) var(--spacing-xl);
    font-family: var(--font-primary);
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    letter-spacing: 0.01em;
    min-height: 48px;
    /* Amélioration touch */
    touch-action: manipulation;
    user-select: none;
    -webkit-user-select: none;
}

.btn:active {
    transform: scale(0.98);
}

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

.btn-primary {
    background: var(--color-primary);
    color: var(--color-text-inverse);
    box-shadow: 0 4px 12px rgba(255, 107, 53, 0.2);
}

.btn-primary:hover {
    background: var(--color-primary-dark);
    box-shadow: 0 6px 16px rgba(255, 107, 53, 0.3);
}

.btn-secondary {
    background: var(--color-bg-main);
    color: var(--color-text-primary);
    border: 1px solid var(--color-border);
}

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

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

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

.btn-full {
    width: 100%;
}

.btn-icon {
    padding: var(--spacing-sm);
    min-height: 40px;
    aspect-ratio: 1;
}

/* ============================================
   COMPOSANTS - BADGES & TAGS
   ============================================ */

.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 12px;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    letter-spacing: 0.02em;
}

.badge-primary {
    background: rgba(255, 107, 53, 0.1);
    color: var(--color-primary);
}

.badge-success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--color-success);
}

.badge-warning {
    background: rgba(245, 158, 11, 0.1);
    color: var(--color-warning);
}

/* ============================================
   COMPOSANTS - FORMULAIRES
   ============================================ */

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-xs);
    letter-spacing: 0.01em;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: var(--spacing-md);
    font-family: var(--font-primary);
    font-size: 1rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-bg-card);
    color: var(--color-text-primary);
    transition: all var(--transition-fast);
    min-height: 48px;
    /* Amélioration mobile */
    -webkit-appearance: none;
    appearance: none;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.1);
}

.form-input:disabled,
.form-select:disabled,
.form-textarea:disabled {
    background: var(--color-bg-main);
    opacity: 0.6;
    cursor: not-allowed;
}

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

/* Boutons de sommeil */
.sleep-buttons {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xs);
}

.sleep-btn {
    padding: var(--spacing-md);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-bg-card);
    color: var(--color-text-primary);
    font-family: var(--font-primary);
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    min-height: 56px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
}

.sleep-btn:hover {
    border-color: var(--color-primary);
    background: rgba(255, 107, 53, 0.05);
}

.sleep-btn.active {
    border-color: var(--color-primary);
    background: var(--color-primary);
    color: var(--color-text-inverse);
    box-shadow: 0 2px 8px rgba(255, 107, 53, 0.3);
}

.sleep-btn:active {
    transform: scale(0.97);
}

/* Sliders */
.form-slider {
    width: 100%;
    height: 8px;
    border-radius: var(--radius-full);
    background: var(--color-border-light);
    outline: none;
    -webkit-appearance: none;
    appearance: none;
    cursor: pointer;
}

.form-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--color-primary);
    cursor: pointer;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    transition: all var(--transition-fast);
}

.form-slider::-webkit-slider-thumb:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 8px rgba(255, 107, 53, 0.4);
}

.form-slider::-moz-range-thumb {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--color-primary);
    cursor: pointer;
    border: none;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    transition: all var(--transition-fast);
}

.form-slider::-moz-range-thumb:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 8px rgba(255, 107, 53, 0.4);
}

.slider-labels {
    display: flex;
    justify-content: space-between;
    margin-top: 4px;
    font-size: 0.75rem;
    color: var(--color-text-light);
}

/* Affichage récupération */
.recovery-summary {
    display: grid;
    gap: var(--spacing-md);
}

.recovery-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--color-bg-main);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border-light);
}

.recovery-icon {
    font-size: 2rem;
    line-height: 1;
}

.recovery-info {
    flex: 1;
}

.recovery-label {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    font-weight: 500;
}

.recovery-value {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text-primary);
    margin-top: 2px;
}

/* ============================================
   COMPOSANTS - STATISTIQUES
   ============================================ */

.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.stat-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    text-align: center;
    transition: all var(--transition-base);
}

.stat-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-md);
}

.stat-value {
    font-size: 2rem;
    font-weight: 800;
    color: var(--color-primary);
    line-height: 1;
    font-family: var(--font-mono);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    margin-top: var(--spacing-xs);
    font-weight: 500;
}

/* ============================================
   COMPOSANTS - LISTES
   ============================================ */

.list {
    list-style: none;
}

.list-item {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--color-border-light);
    transition: all var(--transition-fast);
    cursor: pointer;
}

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

.list-item:hover {
    background: var(--color-bg-main);
}

.list-item:active {
    transform: scale(0.99);
}

/* ============================================
   COMPOSANTS - MODAL
   ============================================ */

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-bg-overlay);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    padding: var(--spacing-lg);
    backdrop-filter: blur(4px);
    animation: fadeIn var(--transition-base);
    overflow-y: auto;
}

.modal-overlay.active {
    display: flex;
}

.modal {
    background: var(--color-bg-card);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    max-width: 500px;
    width: 100%;
    max-height: 85vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
    animation: slideUp var(--transition-base);
    /* Amélioration scroll mobile */
    -webkit-overflow-scrolling: touch;
}

.modal-header {
    margin-bottom: var(--spacing-lg);
    position: relative;
}

.modal-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    padding-right: var(--spacing-xl);
}

.modal-close {
    position: absolute;
    top: 0;
    right: 0;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--color-text-secondary);
    padding: var(--spacing-xs);
    min-width: 44px;
    min-height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Amélioration mobile de la modal */
@media (max-width: 480px) {
    .modal-overlay {
        padding: 0;
        align-items: flex-end;
    }
    
    .modal {
        max-height: 90vh;
        border-radius: var(--radius-xl) var(--radius-xl) 0 0;
        width: 100%;
        max-width: none;
    }
}

/* ============================================
   COMPOSANTS - TOAST NOTIFICATIONS
   ============================================ */

.toast-container {
    position: fixed;
    top: calc(var(--header-height) + var(--spacing-md));
    left: 50%;
    transform: translateX(-50%);
    z-index: 3000;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    pointer-events: none;
}

.toast {
    background: var(--color-bg-dark);
    color: var(--color-text-inverse);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    min-width: 280px;
    animation: slideDown var(--transition-base);
    pointer-events: auto;
}

.toast-success {
    background: var(--color-success);
}

.toast-error {
    background: var(--color-error);
}

.toast-warning {
    background: var(--color-warning);
}

/* ============================================
   UTILITAIRES
   ============================================ */

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

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

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

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

.text-muted {
    color: var(--color-text-secondary);
}

.text-light {
    color: var(--color-text-light);
}

.text-primary {
    color: var(--color-primary);
}

.font-mono {
    font-family: var(--font-mono);
}

.hidden {
    display: none !important;
}

/* ============================================
   ANIMATIONS
   ============================================ */

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

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

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

@keyframes bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-4px);
    }
}

/* ============================================
   PAGE VIEWS - Styles spécifiques
   ============================================ */

.page-title {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: var(--spacing-xs);
    letter-spacing: -0.02em;
    color: var(--color-text-primary);
}

.page-subtitle {
    font-size: 1rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
}

.section-title {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--color-text-primary);
}

.empty-state {
    text-align: center;
    padding: var(--spacing-2xl) var(--spacing-lg);
}

.empty-state-icon {
    font-size: 4rem;
    opacity: 0.2;
    margin-bottom: var(--spacing-md);
}

.empty-state-text {
    color: var(--color-text-secondary);
    font-size: 1rem;
    margin-bottom: var(--spacing-md);
}

.empty-state-compact {
    text-align: center;
    padding: var(--spacing-lg) var(--spacing-md);
}

/* ============================================
   CALENDRIER - Navigation et grille
   ============================================ */

.week-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border-light);
}

.week-label {
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-text-primary);
    font-family: var(--font-mono);
}

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-lg);
}

.calendar-day {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-md);
    min-height: 120px;
    display: flex;
    flex-direction: column;
    transition: all var(--transition-base);
}

.calendar-day:hover {
    border-color: var(--color-border);
    box-shadow: var(--shadow-sm);
}

.calendar-day.is-today {
    border-color: var(--color-primary);
    background: linear-gradient(135deg, rgba(255, 107, 53, 0.05) 0%, rgba(255, 140, 102, 0.02) 100%);
}

.calendar-day.is-past {
    opacity: 0.6;
}

.calendar-day-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-xs);
    border-bottom: 1px solid var(--color-border-light);
}

.calendar-day-name {
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--color-text-secondary);
    text-transform: uppercase;
}

.calendar-day-number {
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--color-text-primary);
}

.calendar-day.is-today .calendar-day-number {
    color: var(--color-primary);
}

.calendar-day-content {
    flex: 1;
    padding: var(--spacing-xs);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.calendar-workout {
    background: var(--color-bg-main);
    border-radius: var(--radius-sm);
    padding: var(--spacing-xs);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    border: 1px solid transparent;
}

.calendar-workout:hover {
    border-color: var(--color-primary);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

.calendar-workout-type {
    font-size: 1.25rem;
    line-height: 1;
}

.calendar-workout-info {
    flex: 1;
    min-width: 0;
}

.calendar-workout-title {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.calendar-workout-meta {
    font-size: 0.65rem;
    color: var(--color-text-light);
    margin-top: 2px;
}

.calendar-add-btn {
    width: 100%;
    padding: var(--spacing-sm);
    background: transparent;
    border: 1px dashed var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text-light);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.calendar-add-btn:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background: rgba(255, 107, 53, 0.05);
}

/* ============================================
   CALENDRIER - Boutons de type et intensité
   ============================================ */

.workout-type-buttons,
.intensity-buttons {
    display: grid;
    gap: var(--spacing-xs);
}

.workout-type-buttons {
    grid-template-columns: repeat(2, 1fr);
}

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

@media (min-width: 480px) {
    .intensity-buttons {
        grid-template-columns: repeat(4, 1fr);
    }
}

.workout-type-btn,
.intensity-btn {
    padding: var(--spacing-md);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-bg-card);
    color: var(--color-text-primary);
    font-family: var(--font-primary);
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    min-height: 52px;
}

.workout-type-btn:hover,
.intensity-btn:hover {
    border-color: var(--color-primary);
    background: rgba(255, 107, 53, 0.05);
}

.workout-type-btn.active,
.intensity-btn.active {
    border-color: var(--color-primary);
    background: var(--color-primary);
    color: var(--color-text-inverse);
    box-shadow: 0 2px 8px rgba(255, 107, 53, 0.3);
}

.workout-type-btn:active,
.intensity-btn:active {
    transform: scale(0.97);
}

/* ============================================
   MODAL - Actions et détails
   ============================================ */

.workout-details {
    padding: var(--spacing-lg) 0;
    border-bottom: 1px solid var(--color-border-light);
    margin-bottom: var(--spacing-lg);
}

.workout-details p {
    margin-bottom: var(--spacing-sm);
    line-height: 1.6;
}

.modal-actions {
    display: flex;
    flex-direction: column;
}

/* ============================================
   TRACKING - Séance active
   ============================================ */

.workout-session {
    padding-bottom: var(--spacing-xl);
}

.workout-session-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-lg);
}

/* Timer de repos */
.rest-timer {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-text-inverse);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    text-align: center;
    margin-bottom: var(--spacing-lg);
    animation: pulse 2s ease-in-out infinite;
}

.rest-timer-label {
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    opacity: 0.9;
}

.rest-timer-display {
    font-size: 3rem;
    font-weight: 800;
    font-family: var(--font-mono);
    margin-bottom: var(--spacing-md);
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.85;
    }
}

/* Options de repos */
.rest-options {
    padding: var(--spacing-md) 0;
}

/* Liste des exercices */
.exercises-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.exercise-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
}

.exercise-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--color-border-light);
}

.exercise-name {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text-primary);
}

/* Séries */
.sets-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
}

.set-row {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--color-bg-main);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border-light);
}

.set-number {
    width: 32px;
    height: 32px;
    background: var(--color-primary);
    color: var(--color-text-inverse);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.875rem;
    flex-shrink: 0;
}

.set-info {
    flex: 1;
    font-size: 0.875rem;
    line-height: 1.5;
}

.text-sm {
    font-size: 0.75rem;
}

/* Résumé de séance */
.workout-summary {
    padding: var(--spacing-md) 0;
}

/* Résumé endurance */
.endurance-summary-card {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.endurance-summary-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--color-bg-main);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border-light);
}

.endurance-summary-icon {
    font-size: 1.75rem;
    line-height: 1;
}

.endurance-summary-value {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text-primary);
    font-family: var(--font-mono);
}

.endurance-summary-label {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    margin-top: 2px;
}

/* ============================================
   GRAPHIQUES
   ============================================ */

.chart-container {
    padding: var(--spacing-lg) 0;
}

.chart-empty {
    padding: var(--spacing-xl);
    text-align: center;
}

.chart-bars {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: var(--spacing-xs);
    height: 200px;
    margin-bottom: var(--spacing-md);
}

.chart-bar-wrapper {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    min-width: 0;
}

.chart-bar-container {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: flex-end;
    justify-content: center;
}

.chart-bar {
    width: 100%;
    max-width: 60px;
    background: linear-gradient(180deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    border-radius: var(--radius-sm) var(--radius-sm) 0 0;
    position: relative;
    transition: all var(--transition-base);
    min-height: 4px;
}

.chart-bar:hover {
    opacity: 0.8;
    transform: translateY(-2px);
}

.chart-bar-value {
    position: absolute;
    top: -24px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--color-text-primary);
    white-space: nowrap;
    font-family: var(--font-mono);
}

.chart-bar-label {
    font-size: 0.7rem;
    color: var(--color-text-secondary);
    text-align: center;
    font-family: var(--font-mono);
}

.chart-legend {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border-light);
    font-size: 0.875rem;
}

/* ============================================
   RECORDS PERSONNELS
   ============================================ */

.pr-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-md);
}

.pr-info {
    flex: 1;
}

.pr-details {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    margin-top: 4px;
}

.pr-date {
    font-size: 0.75rem;
    color: var(--color-text-light);
    margin-top: 2px;
}

.pr-badge {
    font-size: 1.5rem;
    flex-shrink: 0;
}

/* ============================================
   PROFIL - Objectifs et sports
   ============================================ */

/* Grille d'objectifs */
.goals-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.goal-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-lg);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    background: var(--color-bg-card);
    cursor: pointer;
    transition: all var(--transition-fast);
    min-height: 100px;
}

.goal-btn:hover {
    border-color: var(--color-primary);
    background: rgba(255, 107, 53, 0.05);
    transform: translateY(-2px);
}

.goal-btn.active {
    border-color: var(--color-primary);
    background: var(--color-primary);
    color: var(--color-text-inverse);
    box-shadow: 0 4px 12px rgba(255, 107, 53, 0.3);
}

.goal-btn:active {
    transform: scale(0.97);
}

.goal-icon {
    font-size: 2rem;
    line-height: 1;
}

.goal-label {
    font-size: 0.875rem;
    font-weight: 600;
}

/* Toggle de sport */
.sport-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--color-bg-main);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-sm);
}

.sport-toggle:last-child {
    margin-bottom: 0;
}

.sport-toggle-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex: 1;
}

.sport-toggle-icon {
    font-size: 1.75rem;
    line-height: 1;
}

.sport-toggle-label {
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 2px;
}

.sport-toggle-desc {
    font-size: 0.75rem;
    color: var(--color-text-secondary);
}

/* Toggle switch */
.toggle-switch {
    position: relative;
    display: inline-block;
    width: 52px;
    height: 28px;
    flex-shrink: 0;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--color-border);
    transition: var(--transition-fast);
    border-radius: var(--radius-full);
}

.toggle-slider:before {
    position: absolute;
    content: "";
    height: 22px;
    width: 22px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: var(--transition-fast);
    border-radius: 50%;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.toggle-switch input:checked + .toggle-slider {
    background-color: var(--color-primary);
}

.toggle-switch input:checked + .toggle-slider:before {
    transform: translateX(24px);
}

/* Paramètres */
.setting-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--color-bg-main);
    border-radius: var(--radius-md);
}

.setting-info {
    flex: 1;
}

.setting-label {
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 2px;
}

.setting-desc {
    font-size: 0.75rem;
    color: var(--color-text-secondary);
}

.form-select-compact {
    min-height: auto;
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.875rem;
    width: auto;
}

/* Stats de données */
.data-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: var(--color-bg-main);
    border-radius: var(--radius-md);
}

.data-stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.data-stat-value {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-primary);
    font-family: var(--font-mono);
    line-height: 1;
}

.data-stat-label {
    font-size: 0.7rem;
    color: var(--color-text-secondary);
    margin-top: 4px;
}

/* ============================================
   RESPONSIVE - Desktop
   ============================================ */

@media (min-width: 768px) {
    :root {
        --spacing-lg: 2rem;
        --spacing-xl: 2.5rem;
        --spacing-2xl: 4rem;
    }
    
    .app-main {
        padding: var(--spacing-xl);
        padding-bottom: calc(var(--nav-height) + var(--spacing-xl));
    }
    
    .card {
        padding: var(--spacing-xl);
    }
    
    .stat-grid {
        grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    }
}

/* Mobile: Vue compacte du calendrier */
@media (max-width: 480px) {
    .calendar-grid {
        gap: 4px;
    }
    
    .calendar-day {
        min-height: 100px;
    }
    
    .calendar-day-header {
        padding: 4px;
    }
    
    .calendar-day-name {
        font-size: 0.6rem;
    }
    
    .calendar-day-number {
        font-size: 0.75rem;
    }
    
    .calendar-day-content {
        padding: 4px;
        gap: 4px;
    }
    
    .calendar-workout {
        padding: 4px;
        gap: 4px;
    }
    
    .calendar-workout-type {
        font-size: 1rem;
    }
    
    .calendar-workout-title {
        font-size: 0.7rem;
    }
    
    .calendar-workout-meta {
        font-size: 0.6rem;
    }
    
    .week-nav {
        padding: var(--spacing-sm);
    }
    
    .week-label {
        font-size: 0.875rem;
    }
}

/* ============================================
   DARK MODE (Préparation future)
   ============================================ */

@media (prefers-color-scheme: dark) {
    /* À implémenter si nécessaire */
}