/* Variables Globales Premium */
:root {
    --primary: #4f46e5; /* Indigo 600 */
    --primary-light: #818cf8;
    --primary-dark: #3730a3;
    --secondary: #ec4899; /* Pink 500 */
    --bg-gradient-start: #f8fafc;
    --bg-gradient-end: #e2e8f0;
    --surface: rgba(255, 255, 255, 0.8);
    --surface-border: rgba(255, 255, 255, 0.5);
    --text-main: #0f172a;
    --text-muted: #64748b;
    --white: #ffffff;
    --danger: #ef4444;
    --danger-bg: rgba(239, 68, 68, 0.1);
    --danger-border: rgba(239, 68, 68, 0.2);
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.07);
    --border-radius: 16px;
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Inter', system-ui, sans-serif;
    background: linear-gradient(135deg, var(--bg-gradient-start) 0%, var(--bg-gradient-end) 100%);
    background-attachment: fixed;
    color: var(--text-main);
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 100%;
    margin: 0 auto;
    padding: 2rem;
    flex: 1;
    width: 100%;
}

/* Typographie */
h1, h2, h3, h4 {
    font-weight: 700;
    letter-spacing: -0.025em;
    color: var(--text-main);
}

/* Utils Glassmorphism */
.glass {
    background: var(--surface);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--surface-border);
    box-shadow: var(--glass-shadow);
}

/* Navigation */
.navbar {
    position: sticky;
    top: 0;
    z-index: 50;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.5);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.02);
}

.nav-brand {
    font-size: 1.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.05em;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: var(--text-muted);
    font-weight: 500;
    transition: var(--transition-fast);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0%;
    height: 2px;
    background: var(--primary);
    transition: var(--transition-fast);
    border-radius: 2px;
}

.nav-link:hover {
    color: var(--primary);
}

.nav-link:hover::after {
    width: 100%;
}

.user-menu {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    padding-left: 1.5rem;
    border-left: 1px solid rgba(0, 0, 0, 0.1);
}

.user-name {
    font-weight: 600;
    font-size: 0.95rem;
}

/* Boutons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: 999px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: var(--transition-normal);
    font-size: 0.95rem;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: var(--white);
    box-shadow: 0 4px 15px rgba(79, 70, 229, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(79, 70, 229, 0.4);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-logout {
    background: rgba(255, 255, 255, 0.8);
    color: var(--text-main);
    border: 1px solid rgba(0, 0, 0, 0.05);
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
}

.btn-logout:hover {
    background: var(--white);
    box-shadow: var(--shadow-sm);
    color: var(--danger);
}

.btn-block {
    display: flex;
    width: 100%;
}

/* Alertes */
.alert {
    padding: 1rem 1.25rem;
    border-radius: 12px;
    margin-bottom: 1.5rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    animation: slideIn 0.3s ease-out forwards;
}

@keyframes slideIn {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

.alert-danger {
    background-color: var(--danger-bg);
    color: var(--danger);
    border: 1px solid var(--danger-border);
}

/* Formulaires (Login) */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: calc(100vh - 160px);
    perspective: 1000px;
}

.login-card {
    background: var(--surface);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    padding: 3rem 2.5rem;
    border-radius: 24px;
    border: 1px solid var(--surface-border);
    box-shadow: var(--glass-shadow), 0 20px 40px rgba(0,0,0,0.05);
    width: 100%;
    max-width: 420px;
    transform-style: preserve-3d;
    animation: fadeUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes fadeUp {
    from { opacity: 0; transform: translateY(30px) scale(0.95); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

.login-card h2 {
    text-align: center;
    margin-bottom: 0.5rem;
    font-size: 2rem;
    background: linear-gradient(135deg, var(--text-main), var(--primary-dark));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.login-subtitle {
    text-align: center;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    font-size: 0.95rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-main);
    font-size: 0.9rem;
    margin-left: 0.25rem;
}

.form-group input {
    width: 100%;
    padding: 0.875rem 1.25rem;
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: 12px;
    font-family: inherit;
    font-size: 1rem;
    background: rgba(255, 255, 255, 0.9);
    transition: var(--transition-normal);
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-light);
    box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.15);
    background: var(--white);
}

/* Dashboard */
.dashboard-header {
    margin-bottom: 3rem;
    animation: fadeUp 0.4s ease-out forwards;
}

.dashboard-header h1 {
    font-size: 2.5rem;
}

.dashboard-header p {
    color: var(--text-muted);
    font-size: 1.1rem;
    margin-top: 0.5rem;
}

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 2rem;
}

.card {
    background: var(--surface);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--surface-border);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    transition: var(--transition-normal);
    animation: fadeUp 0.5s ease-out backwards;
}

.card:nth-child(2) { animation-delay: 0.1s; }
.card:nth-child(3) { animation-delay: 0.2s; }

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg), var(--glass-shadow);
}

.card-header {
    padding: 1.5rem 1.5rem 1rem;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.card-header h3 {
    font-size: 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.card-body {
    padding: 1.5rem;
    color: var(--text-muted);
}

.card-body p {
    margin-bottom: 0.5rem;
}

.card-body strong {
    color: var(--text-main);
}

.badge {
    background: linear-gradient(135deg, #e0e7ff, #c7d2fe);
    color: var(--primary-dark);
    padding: 0.35rem 0.85rem;
    border-radius: 9999px;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: capitalize;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
    display: inline-block;
}

/* Pied de page */
.footer {
    text-align: center;
    padding: 2rem;
    color: var(--text-muted);
    font-size: 0.875rem;
    margin-top: auto;
    font-weight: 500;
}

/* Tables */
.table-responsive {
    overflow-x: auto;
    width: 100%;
}

.table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
    font-size: 0.95rem;
}

.table th, .table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.table th {
    font-weight: 600;
    color: var(--text-main);
    background-color: rgba(0, 0, 0, 0.02);
}

.table tbody tr {
    transition: var(--transition-fast);
}

.table tbody tr:hover {
    background-color: rgba(0, 0, 0, 0.01);
}

/* Status Badges */
.badge-success {
    background: linear-gradient(135deg, #dcfce7, #bbf7d0);
    color: #166534;
}

.badge-danger {
    background: linear-gradient(135deg, #fee2e2, #fecaca);
    color: #991b1b;
}

/* Boutons supplémentaires */
.btn-sm {
    padding: 0.4rem 0.8rem;
    font-size: 0.85rem;
}

.btn-outline {
    background: transparent;
    border: 1px solid rgba(0,0,0,0.1);
    color: var(--text-main);
}

.btn-outline:hover {
    background: rgba(0,0,0,0.05);
}

.btn-danger {
    background: linear-gradient(135deg, var(--danger), #dc2626);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(239, 68, 68, 0.2);
}

.btn-danger:hover {
    box-shadow: 0 6px 20px rgba(239, 68, 68, 0.3);
    transform: translateY(-2px);
}

.header-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.flex-actions {
    display: flex;
    gap: 0.5rem;
}

/* Quick Navigation Buttons */
.quick-nav-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1.1rem;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.5);
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    transition: var(--transition-normal);
    box-shadow: var(--shadow-sm);
}
.quick-nav-btn:hover {
    transform: translateY(-1px);
    color: var(--primary);
    border-color: var(--primary-light);
    box-shadow: var(--shadow-md);
}
.quick-nav-btn.active {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    border-color: transparent;
    box-shadow: 0 4px 10px rgba(236, 72, 153, 0.15);
}
.quick-nav-btn svg {
    transition: var(--transition-fast);
}
.quick-nav-btn:hover svg {
    transform: scale(1.1);
}

/* Responsiveness media queries */
@media (max-width: 768px) {
    .navbar {
        flex-direction: column;
        gap: 1rem;
        padding: 1rem;
        align-items: center;
    }
    .nav-menu {
        flex-direction: column;
        gap: 1rem;
        width: 100%;
    }
    .user-menu {
        border-left: none;
        border-top: 1px solid rgba(0, 0, 0, 0.1);
        padding-left: 0;
        padding-top: 1rem;
        width: 100%;
        justify-content: center;
    }
    .container {
        padding: 1rem;
    }
    .header-actions {
        flex-direction: column;
        align-items: stretch;
        gap: 1rem;
        text-align: center;
    }
    .header-actions h1 {
        font-size: 2rem;
    }
    .header-actions .btn {
        width: 100%;
    }
    .flex-actions {
        flex-direction: column;
        gap: 0.5rem;
        width: 100%;
    }
    .flex-actions form, .flex-actions a {
        width: 100%;
        display: block;
    }
    .flex-actions button, .flex-actions a.btn {
        width: 100%;
        box-sizing: border-box;
        text-align: center;
    }
    .quick-nav-bar {
        justify-content: center;
    }
}