:root {
    --primary: #0EA5E9;
    --white: #FFFFFF;
    --emergency: #EF4444;
    --gray-light: #F3F4F6;
    --gray-dark: #1F2937;
    --text-main: #374151;
    --border: #E5E7EB;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', system-ui, sans-serif;
}

body {
    background-color: var(--gray-light);
    color: var(--text-main);
}

.hidden { display: none !important; }

/* Écran de Connexion */
.auth-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
    background: linear-gradient(135deg, #e0f2fe 0%, #f3f4f6 100%);
}

.auth-card {
    background: var(--white);
    padding: 35px;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.08);
    width: 100%;
    max-width: 480px;
}

.auth-header {
    text-align: center;
    margin-bottom: 25px;
}

.emergency-badge {
    background: var(--emergency);
    color: white;
    padding: 4px 12px;
    border-radius: 20px;
    font-weight: bold;
    font-size: 0.75rem;
}

.auth-tabs {
    display: flex;
    margin-bottom: 25px;
    border-bottom: 2px solid var(--gray-light);
}

.auth-tabs button {
    flex: 1;
    padding: 12px;
    background: none;
    border: none;
    font-weight: 600;
    cursor: pointer;
    color: #6B7280;
}

.auth-tabs button.active {
    border-bottom: 2px solid var(--primary);
    color: var(--primary);
}

/* Formulaires */
.form-group { margin-bottom: 16px; }
.form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 500;
    font-size: 0.85rem;
}
.form-group input, .form-group select, .form-group textarea {
    width: 100%;
    padding: 11px 14px;
    border: 1px solid var(--border);
    border-radius: 8px;
    outline: none;
    font-size: 0.95rem;
}
.form-row { display: flex; gap: 12px; }

.btn-primary {
    width: 100%;
    padding: 13px;
    background: var(--primary);
    border: none;
    color: white;
    font-weight: bold;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.2s;
}
.btn-primary:hover { background: #0284C7; }

/* Layout Dashboard principal */
.app-wrapper { display: flex; min-height: 100vh; }

.sidebar {
    width: 280px;
    background: var(--gray-dark);
    color: white;
    display: flex;
    flex-direction: column;
    padding: 24px;
}

.birm-id-badge {
    display: inline-block;
    background: rgba(14, 165, 233, 0.2);
    color: var(--primary);
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: bold;
    margin-top: 5px;
}

.sidebar-menu {
    margin-top: 30px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    flex-grow: 1;
}

.sidebar-menu a {
    color: #9CA3AF;
    text-decoration: none;
    padding: 12px;
    border-radius: 8px;
    display: block;
}

.sidebar-menu a:hover, .sidebar-menu a.active {
    background: rgba(14, 165, 233, 0.15);
    color: var(--primary);
}

.menu-divider {
    font-size: 0.75rem;
    color: #4B5563;
    font-weight: bold;
    margin: 20px 0 10px 12px;
    letter-spacing: 0.05em;
}

.main-content { flex-grow: 1; padding: 40px; background: #F9FAFB; }

.top-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border);
    padding-bottom: 20px;
    margin-bottom: 30px;
}

.role-badge {
    background: #E0F2FE;
    color: #0369A1;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

/* Grilles & Cartes */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; }
.stat-card { background: white; padding: 24px; border-radius: 12px; border: 1px solid var(--border); }
.stat-number { font-size: 2rem; font-weight: bold; color: var(--primary); margin-top: 10px; }
.card { background: white; padding: 30px; border-radius: 12px; border: 1px solid var(--border); max-width: 700px; }

.btn-logout {
    background: none;
    border: 1px solid #4B5563;
    color: #9CA3AF;
    padding: 10px;
    width: 100%;
    border-radius: 6px;
    cursor: pointer;
}
.btn-logout:hover { background: var(--emergency); color: white; border-color: var(--emergency); }

/* Responsive Téléphones & Tablettes */
@media(max-width: 768px) {
    .app-wrapper { flex-direction: column; }
    .sidebar { width: 100%; }
    .main-content { padding: 20px; }
}