:root {
    --bg-body: #0a0f1a;
    --bg-card: #111827;
    --bg-card-hover: #1a2332;
    --bg-input: #1e293b;
    --bg-sidebar: #0d1321;
    --border: #1e293b;
    --border-focus: #3b82f6;
    --text-primary: #f1f5f9;
    --text-secondary: #b0bec5;
    --text-muted: #8899a6;
    --accent: #3b82f6;
    --accent-hover: #2563eb;
    --success: #22c55e;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #06b6d4;
}

body {
    background-color: var(--bg-body);
    color: var(--text-primary);
    font-family: system-ui, -apple-system, 'Segoe UI', sans-serif;
    min-height: 100vh;
}

/* Cards */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
}
.card:hover {
    border-color: var(--border-focus);
}
.card-header {
    background: transparent;
    border-bottom: 1px solid var(--border);
    color: var(--text-primary);
}

/* Tables */
.table {
    --bs-table-bg: transparent;
    --bs-table-color: var(--text-primary);
    --bs-table-border-color: var(--border);
    --bs-table-hover-bg: var(--bg-card-hover);
    --bs-table-hover-color: var(--text-primary);
    --bs-table-striped-bg: rgba(255,255,255,0.02);
}
.table th {
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Formulaires */
.form-control, .form-select {
    background-color: var(--bg-input);
    border-color: var(--border);
    color: var(--text-primary);
}
.form-control:focus, .form-select:focus {
    background-color: var(--bg-input);
    border-color: var(--border-focus);
    color: var(--text-primary);
    box-shadow: 0 0 0 0.2rem rgba(59, 130, 246, 0.25);
}
.form-control::placeholder {
    color: var(--text-muted);
}
.form-label {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.9rem;
}

/* Boutons */
.btn-primary {
    background: var(--accent);
    border-color: var(--accent);
}
.btn-primary:hover {
    background: var(--accent-hover);
    border-color: var(--accent-hover);
}
.btn-outline-light {
    color: var(--text-secondary);
    border-color: var(--border);
}
.btn-outline-light:hover {
    background: var(--bg-card-hover);
    color: var(--text-primary);
    border-color: var(--text-secondary);
}

/* Badges statut */
.badge {
    font-weight: 500;
    font-size: 0.8rem;
    padding: 0.4em 0.8em;
    border-radius: 6px;
}

/* Sidebar */
.sidebar {
    background: var(--bg-sidebar);
    border-right: 1px solid var(--border);
    min-height: 100vh;
    width: 260px;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1000;
    transition: transform 0.3s ease;
}
.sidebar .nav-link {
    color: var(--text-secondary);
    padding: 0.7rem 1.2rem;
    border-radius: 8px;
    margin: 2px 8px;
    transition: all 0.2s;
}
.sidebar .nav-link:hover,
.sidebar .nav-link.active {
    color: var(--text-primary);
    background: var(--bg-card);
}
.sidebar .nav-link.active {
    border-left: 3px solid var(--accent);
}
.sidebar .nav-link i {
    width: 24px;
    margin-right: 8px;
}
.main-content {
    margin-left: 260px;
    padding: 24px;
    min-height: 100vh;
}

/* KPI Cards */
.kpi-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.2rem;
}
.kpi-card .kpi-value {
    font-size: 2rem;
    font-weight: 700;
    line-height: 1;
}
.kpi-card .kpi-label {
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-top: 4px;
}

/* Modal dark */
.modal-content {
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-primary);
}
.modal-header {
    border-bottom: 1px solid var(--border);
}
.modal-footer {
    border-top: 1px solid var(--border);
}
.btn-close {
    filter: invert(1);
}

/* Toast */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 9999;
}
.toast {
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-primary);
    border-radius: 8px;
    min-width: 280px;
}
.toast.toast-success { border-left: 4px solid var(--success); }
.toast.toast-error { border-left: 4px solid var(--danger); }
.toast.toast-warning { border-left: 4px solid var(--warning); }

/* Barre de progression statut */
.progress-steps {
    display: flex;
    justify-content: space-between;
    position: relative;
    margin: 1.5rem 0;
    overflow-x: auto;
    padding-bottom: 8px;
}
.progress-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    flex: 1;
    position: relative;
    min-width: 80px;
}
.progress-step .step-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--border);
    border: 2px solid var(--border);
    z-index: 1;
}
.progress-step.active .step-dot {
    background: var(--accent);
    border-color: var(--accent);
    box-shadow: 0 0 8px rgba(59,130,246,0.4);
}
.progress-step.done .step-dot {
    background: var(--success);
    border-color: var(--success);
}
.progress-step .step-label {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-align: center;
    margin-top: 6px;
}
.progress-step.active .step-label,
.progress-step.done .step-label {
    color: var(--text-primary);
}

/* Photo grid */
.photo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 12px;
}
.photo-grid .photo-item {
    aspect-ratio: 1;
    border-radius: 8px;
    overflow: hidden;
    position: relative;
    cursor: pointer;
    border: 1px solid var(--border);
}
.photo-grid .photo-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.photo-grid .photo-item .photo-delete {
    position: absolute;
    top: 4px;
    right: 4px;
    background: rgba(239,68,68,0.9);
    border: none;
    color: #fff;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: none;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    cursor: pointer;
}
.photo-grid .photo-item:hover .photo-delete {
    display: flex;
}

/* Upload zone */
.upload-zone {
    border: 2px dashed var(--border);
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.2s;
}
.upload-zone:hover, .upload-zone.dragover {
    border-color: var(--accent);
    color: var(--text-secondary);
    background: rgba(59,130,246,0.05);
}

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-body); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }

/* Mobile */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        width: 280px;
    }
    .sidebar.open {
        transform: translateX(0);
    }
    .main-content {
        margin-left: 0;
        padding: 16px;
    }
    .mobile-header {
        display: flex !important;
    }
    .photo-grid {
        grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    }
    .kpi-card .kpi-value {
        font-size: 1.5rem;
    }
}

/* Mobile header (hamburger) */
.mobile-header {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 56px;
    background: var(--bg-sidebar);
    border-bottom: 1px solid var(--border);
    z-index: 999;
    align-items: center;
    padding: 0 16px;
}
.mobile-header .hamburger {
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
}

@media (max-width: 768px) {
    .main-content {
        padding-top: 72px;
    }
}

/* Overlay sidebar mobile */
.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 999;
}
.sidebar-overlay.active {
    display: block;
}

/* Vitrine */
.hero {
    background: linear-gradient(135deg, #0a0f1a 0%, #1e293b 100%);
    padding: 5rem 0;
    text-align: center;
}
.hero h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    margin-bottom: 1rem;
}
.hero .lead {
    color: var(--text-secondary);
    font-size: clamp(1rem, 2.5vw, 1.3rem);
    max-width: 600px;
    margin: 0 auto 2rem;
}
.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
    height: 100%;
    transition: transform 0.2s, border-color 0.2s;
}
.feature-card:hover {
    transform: translateY(-4px);
    border-color: var(--accent);
}
.feature-card i {
    font-size: 2.5rem;
    color: var(--accent);
    margin-bottom: 1rem;
}
.step-number {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--accent);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.2rem;
    margin: 0 auto 1rem;
}