:root {
    /* Palette de couleurs */
    --bg-body: #080811;
    --bg-sidebar: #0d0d1a;
    --bg-card: #121224;
    --bg-input: #0a0a14;

    --border-subtle: #22223b;
    --border-card: #272744;
    --border-hover: #3b3b66;

    --accent-orange: #ff5e1e;
    --accent-orange-hover: #ff753e;
    --accent-orange-glow: rgba(255, 94, 30, 0.15);

    --text-main: #ffffff;
    --text-muted: #9ba3b8;
    --text-subtle: #64748b;

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --transition: all 0.2s ease-in-out;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

body {
    background-color: var(--bg-body);
    color: var(--text-main);
    display: flex;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    position: relative;
}

/* --- Barre mobile / Header mobile --- */
.mobile-topbar {
    display: none;
    background: var(--bg-sidebar);
    border-bottom: 1px solid var(--border-subtle);
    padding: 1rem 1.25rem;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 100;
    width: 100%;
}

.mobile-topbar h2 {
    font-size: 1.1rem;
    font-weight: 800;
}

.burger-btn {
    background: none;
    border: none;
    color: var(--text-main);
    cursor: pointer;
    padding: 0.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* --- Layout & Sidebar --- */
.sidebar {
    width: 260px;
    background: var(--bg-sidebar);
    border-right: 1px solid var(--border-subtle);
    padding: 2rem 1.25rem;
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    transition: transform 0.3s ease;
}

.sidebar h2 {
    font-size: 1.15rem;
    font-weight: 800;
    color: var(--text-main);
    margin-bottom: 2rem;
    padding-left: 0.75rem;
    letter-spacing: -0.02em;
}

.sidebar h2 span {
    color: var(--accent-orange);
}

.nav-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    flex: 1;
}

.nav-links a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    color: var(--text-muted);
    text-decoration: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.92rem;
    transition: var(--transition);
    border: 1px solid transparent;
}

.nav-links a:hover {
    background: var(--bg-card);
    color: var(--text-main);
    border-color: var(--border-card);
}

.nav-links a.active {
    background: var(--bg-card);
    color: #fff;
    border-color: var(--accent-orange);
    box-shadow: 0 0 15px var(--accent-orange-glow);
}

.main-content {
    flex: 1;
    padding: 2.5rem;
    overflow-y: auto;
    min-width: 0;
    /* Évite les débordements flexbox */
}

/* --- Cartes & Conteneurs --- */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    margin-bottom: 1.5rem;
    transition: var(--transition);
    position: relative;
}

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

.tag-kicker {
    color: var(--accent-orange);
    font-size: 0.72rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 0.5rem;
    display: block;
}

h1 {
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
}

h2 {
    font-size: 1.35rem;
}

h3 {
    font-size: 1.1rem;
}

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

label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 0.4rem;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="date"],
input[type="datetime-local"],
input[type="number"],
select,
textarea {
    width: 100%;
    padding: 0.8rem 1rem;
    background: var(--bg-input);
    border: 1px solid var(--border-card);
    border-radius: var(--radius-sm);
    color: var(--text-main);
    font-size: 0.95rem;
    transition: var(--transition);
    box-sizing: border-box;
    color-scheme: dark;
}

input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--accent-orange);
    box-shadow: 0 0 10px var(--accent-orange-glow);
}

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

.grid-cols-auto {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.25rem;
    margin-bottom: 2rem;
}

/* --- Boutons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.4rem;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    font-size: 0.92rem;
    font-weight: 700;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
}

.btn-primary {
    background: var(--accent-orange);
    color: #ffffff;
}

.btn-primary:hover {
    background: var(--accent-orange-hover);
    box-shadow: 0 4px 15px rgba(255, 94, 30, 0.35);
    transform: translateY(-1px);
}

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

.btn-secondary:hover {
    background: var(--bg-card);
    border-color: var(--border-hover);
    box-shadow: 0 4px 15px rgba(255, 255, 255, 0.05);
    transform: translateY(-1px);
}

/* --- Tableaux Déroulants (Responsive) --- */
.table-responsive {
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin-top: 1rem;
}

.table {
    width: 100%;
    border-collapse: collapse;
    min-width: 600px;
    /* Force le scroll horizontal sur petit écran */
}

.table th {
    text-align: left;
    padding: 0.85rem 1rem;
    color: var(--text-subtle);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--border-subtle);
    white-space: nowrap;
}

.table td {
    padding: 1rem;
    border-bottom: 1px solid var(--border-subtle);
    color: var(--text-muted);
    font-size: 0.92rem;
}

.table tr:hover td {
    background: rgba(255, 255, 255, 0.02);
    color: var(--text-main);
}

/* --- Badges --- */
.badge {
    padding: 0.35rem 0.65rem;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    display: inline-block;
}

.badge-danger {
    background: rgba(239, 68, 68, 0.15);
    color: #f87171;
    border: 1px solid #ef4444;
}

.badge-warning {
    background: rgba(255, 94, 30, 0.15);
    color: var(--accent-orange);
    border: 1px solid var(--accent-orange);
}

.badge-success {
    background: rgba(34, 197, 94, 0.15);
    color: #4ade80;
    border: 1px solid #22c55e;
}

.badge-info {
    background: rgba(59, 130, 246, 0.15);
    color: #60a5fa;
    border: 1px solid #3b82f6;
}

/* Overlay pour fermer le menu mobile */
.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    z-index: 998;
}

/* ===================================================
   MEDIA QUERIES (Mobile & Tablette)
   =================================================== */
@media (max-width: 900px) {
    body {
        flex-direction: column;
    }

    .mobile-topbar {
        display: flex;
    }

    .sidebar {
        position: fixed;
        top: 0;
        left: 0;
        bottom: 0;
        width: 280px;
        z-index: 999;
        transform: translateX(-100%);
        box-shadow: 10px 0 30px rgba(0, 0, 0, 0.5);
    }

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

    .sidebar-overlay.active {
        display: block;
    }

    .main-content {
        padding: 1.25rem;
    }

    .grid-2 {
        grid-template-columns: 1fr;
    }

    .page-header {
        flex-direction: column;
        align-items: flex-start !important;
        gap: 1rem;
    }

    .page-header .btn {
        width: 100%;
    }

    .item-row {
        grid-template-columns: 1fr !important;
        gap: 0.5rem;
        background: var(--bg-input);
        padding: 0.75rem;
        border-radius: var(--radius-sm);
    }
}