/* ===========================================
   Design System - Partage Chantier
   Hydre Assainissement
   =========================================== */

/* Variables CSS */
:root {
    /* Couleurs principales - Bleu professionnel */
    --primary-50: #e6f2ff;
    --primary-100: #b3d9ff;
    --primary-200: #80bfff;
    --primary-300: #4da6ff;
    --primary-400: #1a8cff;
    --primary-500: #0073e6;
    --primary-600: #005cb3;
    --primary-700: #004580;
    --primary-800: #002e4d;
    --primary-900: #00171a;

    /* Couleurs accent - Orange Hydre */
    --accent-400: #ff9f43;
    --accent-500: #ff8c1a;
    --accent-600: #e67300;

    /* Couleurs neutres */
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;

    /* Statuts */
    --status-en-cours: #22c55e;
    --status-termine: #64748b;
    --status-en-attente: #f59e0b;

    /* Effets */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 350ms ease;

    /* Rayons de bordure */
    --radius-sm: 0.375rem;
    --radius: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, var(--gray-900) 0%, var(--primary-900) 100%);
    color: var(--gray-100);
    min-height: 100vh;
    line-height: 1.6;
}

/* Typographie */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
}

h1 { font-size: 2rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.125rem; }

/* Liens */
a {
    color: var(--primary-400);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--primary-300);
}

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Cards avec effet glassmorphism */
.card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

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

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

/* Boutons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
}

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

.btn-primary {
    background: linear-gradient(135deg, var(--primary-500) 0%, var(--primary-600) 100%);
    color: white;
}

.btn-primary:hover:not(:disabled) {
    background: linear-gradient(135deg, var(--primary-400) 0%, var(--primary-500) 100%);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 115, 230, 0.4);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--gray-100);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover:not(:disabled) {
    background: rgba(255, 255, 255, 0.15);
}

.btn-accent {
    background: linear-gradient(135deg, var(--accent-500) 0%, var(--accent-600) 100%);
    color: white;
}

.btn-accent:hover:not(:disabled) {
    background: linear-gradient(135deg, var(--accent-400) 0%, var(--accent-500) 100%);
}

.btn-danger {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    color: white;
}

.btn-danger:hover:not(:disabled) {
    background: linear-gradient(135deg, #f87171 0%, #ef4444 100%);
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.75rem;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1rem;
}

.btn-icon {
    padding: 0.75rem;
    border-radius: var(--radius-full);
}

/* Formulaires */
.form-group {
    margin-bottom: 1.25rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--gray-300);
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    color: var(--gray-100);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius);
    transition: all var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--primary-500);
    box-shadow: 0 0 0 3px rgba(0, 115, 230, 0.2);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--gray-500);
}

.form-textarea {
    min-height: 100px;
    resize: vertical;
}

/* Navigation / Header */
.header {
    background: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--gray-100);
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary-500) 0%, var(--accent-500) 100%);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.nav {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.nav-link {
    padding: 0.5rem 1rem;
    color: var(--gray-400);
    font-weight: 500;
    border-radius: var(--radius);
    transition: all var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
    color: var(--gray-100);
    background: rgba(255, 255, 255, 0.1);
}

.user-badge {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-full);
}

.user-avatar {
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--primary-500) 0%, var(--primary-700) 100%);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.875rem;
}

/* Badges de statut */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: var(--radius-full);
}

.badge-en-cours {
    background: rgba(34, 197, 94, 0.2);
    color: var(--status-en-cours);
}

.badge-termine {
    background: rgba(100, 116, 139, 0.2);
    color: var(--status-termine);
}

.badge-en-attente {
    background: rgba(245, 158, 11, 0.2);
    color: var(--status-en-attente);
}

.badge-bureau {
    background: rgba(0, 115, 230, 0.2);
    color: var(--primary-400);
}

.badge-chauffeur {
    background: rgba(255, 140, 26, 0.2);
    color: var(--accent-400);
}

/* Layout grille */
.grid {
    display: grid;
    gap: 1.5rem;
}

.grid-2 {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

/* Page de connexion */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.login-card {
    width: 100%;
    max-width: 400px;
    padding: 2.5rem;
}

.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

.login-header .logo-icon {
    width: 64px;
    height: 64px;
    font-size: 2rem;
    margin: 0 auto 1rem;
}

.login-header h1 {
    margin-bottom: 0.5rem;
}

.login-header p {
    color: var(--gray-400);
}

/* Dashboard */
.dashboard {
    padding: 2rem 0;
}

.dashboard-header {
    margin-bottom: 2rem;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.stat-card {
    padding: 1.25rem;
    text-align: center;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-400) 0%, var(--accent-400) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    color: var(--gray-400);
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

/* Liste des chantiers */
.chantier-card {
    cursor: pointer;
}

.chantier-title {
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
}

.chantier-address {
    color: var(--gray-400);
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.chantier-meta {
    display: flex;
    gap: 1rem;
    font-size: 0.75rem;
    color: var(--gray-500);
}

.chantier-meta span {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

/* Timeline */
.timeline {
    position: relative;
    padding-left: 2rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0.5rem;
    top: 0;
    bottom: 0;
    width: 2px;
    background: rgba(255, 255, 255, 0.1);
}

.timeline-item {
    position: relative;
    padding-bottom: 1.5rem;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -1.5rem;
    top: 0.5rem;
    width: 10px;
    height: 10px;
    background: var(--primary-500);
    border-radius: 50%;
    border: 2px solid var(--gray-900);
}

.timeline-item.photo::before {
    background: var(--accent-500);
}

.timeline-item.video::before {
    background: #22c55e;
}

.timeline-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.timeline-author {
    font-weight: 500;
    font-size: 0.875rem;
}

.timeline-date {
    font-size: 0.75rem;
    color: var(--gray-500);
}

.timeline-content {
    background: rgba(255, 255, 255, 0.03);
    padding: 1rem;
    border-radius: var(--radius);
}

/* Galerie médias */
.media-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 1rem;
}

.media-item {
    position: relative;
    aspect-ratio: 1;
    border-radius: var(--radius);
    overflow: hidden;
    cursor: pointer;
}

.media-item img,
.media-item video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.media-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.7) 0%, transparent 50%);
    display: flex;
    align-items: flex-end;
    padding: 0.75rem;
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.media-item:hover .media-overlay {
    opacity: 1;
}

.media-info {
    color: white;
    font-size: 0.75rem;
}

/* Bouton flottant (mobile) */
.fab {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-500) 0%, var(--accent-500) 100%);
    color: white;
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    cursor: pointer;
    border: none;
    z-index: 50;
    transition: all var(--transition-fast);
}

.fab:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-xl);
}

/* Modal */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 200;
    padding: 1rem;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

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

.modal {
    background: var(--gray-800);
    border-radius: var(--radius-xl);
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.95);
    transition: transform var(--transition-normal);
}

.modal-overlay.active .modal {
    transform: scale(1);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.modal-close {
    background: none;
    border: none;
    color: var(--gray-400);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.25rem;
    line-height: 1;
}

.modal-close:hover {
    color: var(--gray-100);
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
    padding: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* Upload zone */
.upload-zone {
    border: 2px dashed rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-lg);
    padding: 2rem;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.upload-zone:hover,
.upload-zone.dragover {
    border-color: var(--primary-500);
    background: rgba(0, 115, 230, 0.1);
}

.upload-zone-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.upload-zone-text {
    color: var(--gray-400);
}

.upload-zone-text strong {
    color: var(--primary-400);
}

/* Toast notifications */
.toast-container {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 300;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.toast {
    padding: 1rem 1.5rem;
    border-radius: var(--radius);
    background: var(--gray-800);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    animation: slideUp 0.3s ease;
}

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

.toast-success {
    border-left: 4px solid var(--status-en-cours);
}

.toast-error {
    border-left: 4px solid #ef4444;
}

/* Spinner de chargement */
.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid rgba(255, 255, 255, 0.1);
    border-top-color: var(--primary-500);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loading-overlay {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 400;
}

/* Responsive */
@media (max-width: 768px) {
    h1 { font-size: 1.5rem; }
    h2 { font-size: 1.25rem; }
    
    .header-content {
        flex-wrap: wrap;
        gap: 1rem;
    }
    
    .nav {
        width: 100%;
        justify-content: center;
    }
    
    .dashboard {
        padding: 1rem 0;
    }
    
    .card {
        padding: 1rem;
    }
    
    .modal {
        margin: 0.5rem;
        max-height: calc(100vh - 1rem);
    }
    
    .hide-mobile {
        display: none !important;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .btn {
        padding: 0.625rem 1rem;
    }
    
    .user-badge span {
        display: none;
    }
}

/* Utilitaires */
.text-center { text-align: center; }
.text-right { text-align: right; }
.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.flex { display: flex; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }