@import url('https://fonts.googleapis.com/css2?family=Quicksand:wght@400;500;600;700&display=swap');

:root {
    --navy-950: #0b1b33;
    --navy-900: #10233f;
    --navy-800: #16305a;
    --navy-700: #1e3f73;
    --blue-600: #2563eb;
    --blue-500: #3b82f6;
    --blue-100: #e5edff;
    --bg: #f4f6fb;
    --card: #ffffff;
    --border: #e2e8f0;
    --text: #1b2436;
    --text-muted: #64748b;
    --success: #16a34a;
    --success-bg: #dcfce7;
    --danger: #dc2626;
    --danger-bg: #fee2e2;
    --warning: #d97706;
    --warning-bg: #fef3c7;
    --radius: 12px;
    --shadow: 0 1px 3px rgba(11, 27, 51, 0.08), 0 1px 2px rgba(11, 27, 51, 0.06);
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: 'Quicksand', sans-serif;
    background: var(--bg);
    color: var(--text);
    font-size: 15px;
}

a { color: var(--blue-600); text-decoration: none; }
a:hover { text-decoration: underline; }

.layout { display: flex; min-height: 100vh; }

/* Sidebar */
.sidebar {
    width: 240px;
    flex-shrink: 0;
    background: linear-gradient(180deg, var(--navy-950), var(--navy-900));
    color: #fff;
    display: flex;
    flex-direction: column;
    padding: 24px 16px;
}
.sidebar-brand {
    font-weight: 700;
    font-size: 1.15rem;
    padding: 0 8px 24px;
    line-height: 1.3;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    margin-bottom: 16px;
}
.sidebar-brand span { display: block; font-weight: 500; font-size: 0.75rem; color: #93a5c9; margin-top: 2px; }
.nav-link {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #cbd8ee;
    padding: 10px 12px;
    border-radius: 8px;
    font-weight: 600;
    margin-bottom: 4px;
}
.nav-link:hover { background: rgba(255,255,255,0.08); text-decoration: none; color: #fff; }
.nav-link.active { background: var(--blue-600); color: #fff; }
.nav-section-title {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: #6d7fa3;
    margin: 18px 12px 8px;
    font-weight: 700;
}
.sidebar-user {
    margin-top: auto;
    padding-top: 16px;
    border-top: 1px solid rgba(255,255,255,0.1);
    font-size: 0.85rem;
}
.sidebar-user .name { font-weight: 700; color: #fff; }
.sidebar-user .role { color: #93a5c9; text-transform: capitalize; }
.sidebar-user form { margin-top: 8px; }

/* Main */
.main { flex: 1; padding: 32px 40px; max-width: 1200px; }
.page-header { display: flex; justify-content: space-between; align-items: flex-end; margin-bottom: 24px; flex-wrap: wrap; gap: 12px; }
.page-header h1 { margin: 0; font-size: 1.6rem; font-weight: 700; color: var(--navy-950); }
.page-header p { margin: 4px 0 0; color: var(--text-muted); }

.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--blue-600);
    color: #fff;
    border: none;
    padding: 10px 18px;
    border-radius: 8px;
    font-family: inherit;
    font-weight: 700;
    font-size: 0.9rem;
    cursor: pointer;
}
.btn:hover { background: var(--navy-800); text-decoration: none; color: #fff; }
.btn-secondary { background: #fff; color: var(--navy-900); border: 1px solid var(--border); }
.btn-secondary:hover { background: #f1f5f9; color: var(--navy-900); }
.btn-danger { background: var(--danger); }
.btn-danger:hover { background: #b91c1c; }
.btn-sm { padding: 6px 12px; font-size: 0.8rem; }

.card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); padding: 24px; margin-bottom: 20px; }

.table { width: 100%; border-collapse: collapse; }
.table th { text-align: left; font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--text-muted); padding: 10px 12px; border-bottom: 2px solid var(--border); }
.table td { padding: 12px; border-bottom: 1px solid var(--border); vertical-align: middle; }
.table tr:last-child td { border-bottom: none; }
.table tr:hover td { background: #fafcff; }

.avatar {
    width: 38px; height: 38px; border-radius: 50%;
    background: var(--blue-100); color: var(--navy-800);
    display: flex; align-items: center; justify-content: center;
    font-weight: 700; font-size: 0.85rem; flex-shrink: 0;
}

.badge { display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: 0.75rem; font-weight: 700; }
.badge-admin { background: var(--warning-bg); color: var(--warning); }
.badge-staff { background: var(--blue-100); color: var(--blue-600); }
.badge-suivi { background: var(--blue-100); color: var(--blue-600); }
.badge-incident { background: var(--danger-bg); color: var(--danger); }

.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-weight: 700; margin-bottom: 6px; font-size: 0.9rem; color: var(--navy-900); }
.form-group .hint { font-size: 0.78rem; color: var(--text-muted); margin-top: 4px; }
.form-row { display: flex; gap: 16px; }
.form-row .form-group { flex: 1; }
input[type=text], input[type=password], input[type=search], select, textarea {
    width: 100%;
    font-family: inherit;
    font-size: 0.95rem;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: #fff;
    color: var(--text);
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--blue-500); outline-offset: 1px; border-color: var(--blue-500); }
textarea { resize: vertical; min-height: 110px; }

.alert { padding: 12px 16px; border-radius: 8px; margin-bottom: 20px; font-weight: 600; }
.alert-success { background: var(--success-bg); color: #15803d; }
.alert-error { background: var(--danger-bg); color: #b91c1c; }

.empty-state { text-align: center; padding: 50px 20px; color: var(--text-muted); }
.empty-state h3 { color: var(--navy-900); }

.tabs { display: flex; gap: 4px; border-bottom: 2px solid var(--border); margin-bottom: 20px; }
.tab { padding: 10px 16px; font-weight: 700; color: var(--text-muted); border-bottom: 2px solid transparent; margin-bottom: -2px; cursor: pointer; }
.tab.active { color: var(--blue-600); border-color: var(--blue-600); }

.file-drop {
    display: block;
    border: 2px dashed var(--border);
    border-radius: var(--radius);
    padding: 28px;
    text-align: center;
    color: var(--text-muted);
    background: #fafcff;
    transition: border-color .15s, background .15s;
    cursor: pointer;
}
.file-drop.dragover { border-color: var(--blue-500); background: var(--blue-100); }
.file-drop input[type=file] { display: none; }
.file-list { list-style: none; padding: 0; margin: 16px 0 0; }
.file-list li { display: flex; align-items: center; justify-content: space-between; padding: 10px 12px; border: 1px solid var(--border); border-radius: 8px; margin-bottom: 8px; background: #fff; }
.file-list .file-name { font-weight: 600; }
.file-list .file-meta { font-size: 0.78rem; color: var(--text-muted); }

.detail-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px 32px; margin-bottom: 8px; }
.detail-grid dt { font-size: 0.75rem; text-transform: uppercase; letter-spacing: .05em; color: var(--text-muted); font-weight: 700; }
.detail-grid dd { margin: 4px 0 0; font-weight: 600; }

.cr-item { border: 1px solid var(--border); border-radius: var(--radius); padding: 16px 18px; margin-bottom: 14px; background: #fff; }
.cr-item .cr-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; }
.cr-item h4 { margin: 0; font-size: 1rem; }
.cr-item .cr-meta { font-size: 0.78rem; color: var(--text-muted); margin-top: 6px; }

@media (max-width: 900px) {
    .layout { flex-direction: column; }
    .sidebar { width: 100%; flex-direction: row; overflow-x: auto; align-items: center; }
    .sidebar-brand, .sidebar-user, .nav-section-title { display: none; }
    .main { padding: 20px; }
    .detail-grid, .form-row { grid-template-columns: 1fr; flex-direction: column; }
}