/* ── Variables ────────────────────────────────────────────────────────── */
:root {
    --sidebar-w: 252px;
    --sidebar-bg: #0c1220;
    --sidebar-text: #8b9bb4;
    --sidebar-active-bg: rgba(99,102,241,.16);
    --sidebar-active-text: #fff;
    --sidebar-hover-bg: rgba(255,255,255,.05);
    --sidebar-border: rgba(255,255,255,.06);

    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: rgba(99,102,241,.08);
    --primary-glow: rgba(99,102,241,.24);

    --surface: #ffffff;
    --surface-raised: #f8fafc;
    --bg: #f0f2f7;
    --border: #e4e8f0;
    --border-strong: #c9d1e0;

    --text: #111827;
    --text-secondary: #374151;
    --muted: #6b7280;
    --muted-light: #9ca3af;

    --radius: 12px;
    --radius-sm: 8px;
    --radius-lg: 16px;

    --shadow-xs: 0 1px 2px rgba(0,0,0,.05);
    --shadow-sm: 0 1px 4px rgba(0,0,0,.07), 0 1px 2px rgba(0,0,0,.04);
    --shadow-md: 0 4px 16px rgba(0,0,0,.08), 0 1px 3px rgba(0,0,0,.05);
    --shadow-lg: 0 8px 32px rgba(0,0,0,.10), 0 2px 8px rgba(0,0,0,.06);

    --transition: .18s cubic-bezier(.4,0,.2,1);
}

/* ── Reset / Base ─────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }

body {
    margin: 0;
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background: var(--bg);
    color: var(--text);
    font-size: .9rem;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

/* ── Layout ───────────────────────────────────────────────────────────── */
.app-layout {
    display: flex;
    min-height: 100vh;
}
.app-main {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    background: var(--bg);
}
.app-content {
    flex: 1;
    padding: 30px 36px;
    max-width: 1320px;
    width: 100%;
    margin: 0 auto;
}

/* ── Sidebar ──────────────────────────────────────────────────────────── */
.sidebar {
    width: var(--sidebar-w);
    min-height: 100vh;
    background: var(--sidebar-bg);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
    overflow-x: hidden;
    scrollbar-width: none;
}
.sidebar::-webkit-scrollbar { display: none; }

.sidebar-brand {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 11px;
    padding: 16px 18px;
    border-bottom: 1px solid var(--sidebar-border);
    text-decoration: none;
    transition: opacity var(--transition);
}
.sidebar-brand:hover { opacity: .85; }

.sidebar-brand-icon {
    width: 36px; height: 36px;
    background: linear-gradient(135deg, var(--primary), #818cf8);
    border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    color: #fff;
    font-size: 1rem;
    flex-shrink: 0;
    box-shadow: 0 2px 10px rgba(99,102,241,.45);
}
.sidebar-brand-text {
    font-weight: 700;
    color: #fff;
    font-size: .92rem;
    line-height: 1.25;
    letter-spacing: -.01em;
}
.sidebar-brand-sub {
    font-size: .67rem;
    color: #4b5e7c;
    font-weight: 500;
    letter-spacing: .04em;
    text-transform: uppercase;
}

.sidebar-section { padding: 20px 12px 6px; }
.sidebar-section-label {
    font-size: .63rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .1em;
    color: #3d5068;
    padding: 0 8px;
    margin-bottom: 5px;
}
.sidebar-nav { list-style: none; padding: 0; margin: 0; }
.sidebar-nav li { position: relative; }
.sidebar-nav a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 10px;
    border-radius: var(--radius-sm);
    color: var(--sidebar-text);
    text-decoration: none;
    font-size: .835rem;
    font-weight: 500;
    transition: background var(--transition), color var(--transition);
    margin-bottom: 1px;
    position: relative;
}
.sidebar-nav a:hover {
    background: var(--sidebar-hover-bg);
    color: #c8d3e6;
}
.sidebar-nav a.active {
    background: var(--sidebar-active-bg);
    color: var(--sidebar-active-text);
}
.sidebar-nav a.active::before {
    content: '';
    position: absolute;
    left: 0; top: 50%;
    transform: translateY(-50%);
    width: 3px; height: 18px;
    background: var(--primary);
    border-radius: 0 3px 3px 0;
}
.sidebar-nav a.active .nav-icon { color: #a5b4fc; }
.nav-icon { font-size: .95rem; flex-shrink: 0; opacity: .7; }
.sidebar-nav a.active .nav-icon,
.sidebar-nav a:hover .nav-icon { opacity: 1; }

.sidebar-footer {
    margin-top: auto;
    padding: 12px 12px 16px;
    border-top: 1px solid var(--sidebar-border);
}
.sidebar-user {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 10px;
    border-radius: var(--radius-sm);
    transition: background var(--transition);
}
.sidebar-user:hover { background: var(--sidebar-hover-bg); }
.sidebar-user-avatar {
    width: 33px; height: 33px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), #818cf8);
    color: #fff;
    display: flex; align-items: center; justify-content: center;
    font-size: .7rem;
    font-weight: 700;
    flex-shrink: 0;
    box-shadow: 0 1px 6px rgba(99,102,241,.35);
}
.sidebar-user-name {
    font-size: .8rem;
    font-weight: 600;
    color: #d1dae8;
    line-height: 1.25;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.sidebar-user-role {
    font-size: .65rem;
    color: #3d5068;
    font-weight: 500;
    letter-spacing: .02em;
}
.sidebar-logout {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px; height: 28px;
    border-radius: 7px;
    color: #3d5068;
    text-decoration: none;
    margin-left: auto;
    flex-shrink: 0;
    transition: background var(--transition), color var(--transition);
}
.sidebar-logout:hover { background: rgba(239,68,68,.15); color: #f87171; }

/* ── Flashes ──────────────────────────────────────────────────────────── */
.flash-zone { margin-bottom: 22px; }
.flash-zone .alert {
    border: 1px solid transparent;
    border-radius: var(--radius);
    font-size: .84rem;
    padding: 12px 16px;
    display: flex;
    align-items: center;
    gap: 10px;
    box-shadow: var(--shadow-xs);
    animation: slideInDown .22s ease;
}
@keyframes slideInDown {
    from { opacity: 0; transform: translateY(-8px); }
    to   { opacity: 1; transform: translateY(0); }
}
.flash-zone .alert-success { background: #f0fdf4; color: #15803d; border-color: #bbf7d0; }
.flash-zone .alert-warning { background: #fffbeb; color: #92400e; border-color: #fde68a; }
.flash-zone .alert-danger  { background: #fef2f2; color: #991b1b; border-color: #fecaca; }
.flash-zone .alert-info    { background: #eff6ff; color: #1e40af; border-color: #bfdbfe; }

/* ── Cards ────────────────────────────────────────────────────────────── */
.card {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}
.card-header-section {
    padding: 16px 22px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--surface-raised);
}
.card-header-section .card-header-title {
    font-weight: 600;
    font-size: .875rem;
    color: var(--text);
}

/* ── Tables ───────────────────────────────────────────────────────────── */
.table { margin: 0; font-size: .855rem; }
.table thead th {
    font-size: .7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .06em;
    color: var(--muted);
    background: var(--surface-raised);
    border-bottom: 1px solid var(--border);
    padding: 11px 16px;
    white-space: nowrap;
}
.table td {
    padding: 13px 16px;
    vertical-align: middle;
    border-bottom: 1px solid #f0f4fb;
    color: var(--text-secondary);
}
.table tbody tr:last-child td { border-bottom: none; }
.table-hover tbody tr:hover td {
    background: #f5f7ff;
    color: var(--text);
}

/* ── Boutons ──────────────────────────────────────────────────────────── */
.btn {
    border-radius: var(--radius-sm);
    font-size: .84rem;
    font-weight: 500;
    padding: 7px 15px;
    transition: all var(--transition);
    letter-spacing: -.01em;
    position: relative;
}
.btn:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
.btn-primary {
    background: linear-gradient(135deg, var(--primary), #818cf8);
    border: none;
    color: #fff;
    box-shadow: 0 2px 8px rgba(99,102,241,.35);
}
.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    box-shadow: 0 4px 14px rgba(99,102,241,.45);
    color: #fff;
    transform: translateY(-1px);
}
.btn-primary:active { transform: translateY(0); }

.btn-outline-secondary {
    border-color: var(--border-strong);
    color: var(--text-secondary);
    background: var(--surface);
}
.btn-outline-secondary:hover {
    background: var(--surface-raised);
    border-color: var(--border-strong);
    color: var(--text);
}
.btn-outline-danger:hover { background: #fef2f2; }

.btn-sm { padding: 4px 11px; font-size: .775rem; }

/* ── Badges statut ────────────────────────────────────────────────────── */
.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: .73rem;
    font-weight: 600;
    letter-spacing: .01em;
}
.status-badge.valide          { background: #dcfce7; color: #15803d; }
.status-badge.en_attente      { background: #fef9c3; color: #92400e; }
.status-badge.refuse          { background: #fee2e2; color: #9f1239; }
.status-badge.en_attente_drh  { background: #dbeafe; color: #1e40af; }

/* ── Stat cards ───────────────────────────────────────────────────────── */
.stat-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 22px 24px;
    display: flex;
    align-items: center;
    gap: 18px;
    box-shadow: var(--shadow-sm);
    transition: box-shadow var(--transition), transform var(--transition);
    position: relative;
    overflow: hidden;
}
.stat-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), #818cf8);
    opacity: 0;
    transition: opacity var(--transition);
}
.stat-card:hover { box-shadow: var(--shadow-md); transform: translateY(-1px); }
.stat-card:hover::before { opacity: 1; }

.stat-card-icon {
    width: 48px; height: 48px;
    border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.25rem;
    flex-shrink: 0;
}
.stat-card-value {
    font-size: 1.7rem;
    font-weight: 800;
    line-height: 1;
    letter-spacing: -.03em;
}
.stat-card-label {
    font-size: .73rem;
    color: var(--muted);
    font-weight: 500;
    margin-top: 4px;
}

/* ── Page header ──────────────────────────────────────────────────────── */
.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
    gap: 12px;
    flex-wrap: wrap;
}
.page-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text);
    margin: 0;
    letter-spacing: -.02em;
}

/* ── Forms ────────────────────────────────────────────────────────────── */
.form-label {
    font-size: .81rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 5px;
}
.form-control, .form-select {
    border-radius: var(--radius-sm);
    border: 1.5px solid var(--border);
    font-size: .855rem;
    padding: 8px 12px;
    color: var(--text);
    background: var(--surface);
    transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
}
.form-control::placeholder { color: var(--muted-light); }
.form-control:hover, .form-select:hover {
    border-color: var(--border-strong);
}
.form-control:focus, .form-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99,102,241,.14);
    background: var(--surface);
    outline: none;
}
.form-check-input:checked {
    background-color: var(--primary);
    border-color: var(--primary);
}
.form-check-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99,102,241,.14);
}

/* ── Filter bar ───────────────────────────────────────────────────────── */
.filter-bar {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px 18px;
    margin-bottom: 20px;
    box-shadow: var(--shadow-xs);
}

/* ── Avatar chip ──────────────────────────────────────────────────────── */
.avatar {
    display: inline-flex; align-items: center; justify-content: center;
    border-radius: 50%;
    font-weight: 700;
    flex-shrink: 0;
    color: #fff;
    font-size: .72rem;
}
.avatar-sm { width: 28px; height: 28px; }
.avatar-md { width: 38px; height: 38px; font-size: .82rem; }
.user-chip { display: inline-flex; align-items: center; gap: 9px; }
.user-chip strong { font-size: .855rem; color: var(--text); }

/* ── Empty state ──────────────────────────────────────────────────────── */
.empty-state {
    text-align: center;
    padding: 60px 24px;
    color: var(--muted);
}
.empty-state-icon {
    font-size: 2.6rem;
    margin-bottom: 14px;
    opacity: .3;
    line-height: 1;
}
.empty-state-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 5px;
}
.empty-state-sub { font-size: .83rem; color: var(--muted); }

/* ── Decision log ─────────────────────────────────────────────────────── */
.decision-log { font-size: .8rem; }
.decision-log-item {
    border-left: 3px solid var(--primary);
    padding: 10px 0 10px 14px;
    margin-bottom: 12px;
    position: relative;
}
.decision-log-item::before {
    content: '';
    position: absolute;
    left: -6px; top: 14px;
    width: 9px; height: 9px;
    border-radius: 50%;
    background: var(--primary);
    border: 2px solid var(--surface);
}

/* ── Recap panel ──────────────────────────────────────────────────────── */
.recap-panel dt { font-size: .72rem; color: var(--muted); }
.recap-panel dd { margin: 0 0 8px; font-weight: 600; }

/* ── Topbar (unused but kept) ─────────────────────────────────────────── */
.topbar {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: 0 36px;
    height: 56px;
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
    box-shadow: var(--shadow-xs);
}
.topbar-title { font-weight: 700; font-size: 1rem; color: var(--text); }
.topbar-breadcrumb {
    display: flex; align-items: center; gap: 6px;
    font-size: .8rem; color: var(--muted);
}
.topbar-breadcrumb a { color: var(--muted); text-decoration: none; }
.topbar-breadcrumb a:hover { color: var(--primary); }

/* ── Utilities ────────────────────────────────────────────────────────── */
.text-primary { color: var(--primary) !important; }

/* ── Navbar mobile ────────────────────────────────────────────────────── */
.mobile-nav { display: none; }

/* ── Responsive ───────────────────────────────────────────────────────── */
@media (max-width: 768px) {
    .app-content { padding: 16px 12px 80px; }
    .sidebar { display: none; }
    .stat-card-value { font-size: 1.4rem; }
    .page-title { font-size: 1.1rem; }

    /* Navbar fixe en bas */
    .mobile-nav {
        display: flex;
        position: fixed;
        bottom: 0; left: 0; right: 0;
        height: 62px;
        background: #0c1220;
        border-top: 1px solid rgba(255,255,255,.08);
        z-index: 1000;
        align-items: stretch;
        box-shadow: 0 -4px 20px rgba(0,0,0,.25);
    }
    .mobile-nav-item {
        flex: 1;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 3px;
        color: #8b9bb4;
        text-decoration: none;
        font-size: .58rem;
        font-weight: 600;
        letter-spacing: .03em;
        padding: 6px 4px;
        transition: color .15s, background .15s;
        border: none;
        background: none;
        cursor: pointer;
    }
    .mobile-nav-item i { font-size: 1.15rem; line-height: 1; }
    .mobile-nav-item:hover { color: #c7d2fe; }
    .mobile-nav-item.active { color: #a5b4fc; }
    .mobile-nav-item.active i {
        filter: drop-shadow(0 0 4px rgba(165,180,252,.6));
    }

    /* Tableaux : colonnes moins importantes masquées sur mobile */
    .table thead th:nth-child(3),
    .table td:nth-child(3),
    .table thead th:nth-child(6),
    .table td:nth-child(6) { display: none; }
}