/* ============================================
   LUXURY AUTOS - Style Principal
   Thème Noir & Or Premium
   ============================================ */

:root {
    --black: #0D0D0D;
    --dark-gray: #1A1A1A;
    --medium-gray: #2D2D2D;
    --light-gray: #3D3D3D;
    --gold: #D4AF37;
    --gold-light: #F5E6C8;
    --gold-dark: #B8960C;
    --white: #FFFFFF;
    --text-muted: #888888;
    --success: #28a745;
    --danger: #dc3545;
    --warning: #ffc107;
    --info: #17a2b8;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, var(--black) 0%, var(--dark-gray) 100%);
    color: var(--white);
    min-height: 100vh;
}

/* ============================================
   SIDEBAR
   ============================================ */

.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    width: 280px;
    height: 100vh;
    background: var(--dark-gray);
    border-right: 2px solid var(--gold);
    padding: 20px 0;
    z-index: 1000;
    overflow-y: auto;
}

.sidebar-logo {
    text-align: center;
    padding: 20px;
    border-bottom: 1px solid var(--medium-gray);
    margin-bottom: 20px;
}

.sidebar-logo h1 {
    font-size: 1.5rem;
    color: var(--gold);
    font-weight: 700;
    letter-spacing: 2px;
}

.sidebar-logo span {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-style: italic;
}

.sidebar-nav {
    list-style: none;
}

.sidebar-nav li {
    margin: 5px 15px;
}

.sidebar-nav a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 20px;
    color: var(--white);
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.sidebar-nav a:hover,
.sidebar-nav a.active {
    background: linear-gradient(90deg, var(--gold) 0%, var(--gold-dark) 100%);
    color: var(--black);
}

.sidebar-nav a i {
    width: 20px;
    text-align: center;
}

.sidebar-section {
    padding: 15px 20px 10px;
    font-size: 0.75rem;
    text-transform: uppercase;
    color: var(--gold);
    letter-spacing: 1px;
    border-top: 1px solid var(--medium-gray);
    margin-top: 15px;
}

.sidebar-user {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 20px;
    background: var(--black);
    border-top: 1px solid var(--gold);
}

.sidebar-user-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.sidebar-user-avatar {
    width: 45px;
    height: 45px;
    background: var(--gold);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    color: var(--black);
}

.sidebar-user-name {
    font-weight: 600;
}

.sidebar-user-role {
    font-size: 0.8rem;
    color: var(--gold);
}

/* ============================================
   MAIN CONTENT
   ============================================ */

.main-content {
    margin-left: 280px;
    padding: 30px;
    min-height: 100vh;
}

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

.page-title {
    font-size: 1.8rem;
    color: var(--gold);
    display: flex;
    align-items: center;
    gap: 15px;
}

.page-title i {
    font-size: 1.5rem;
}

/* ============================================
   CARDS
   ============================================ */

.card {
    background: var(--dark-gray);
    border: 1px solid var(--medium-gray);
    border-radius: 12px;
    padding: 25px;
    margin-bottom: 25px;
    transition: all 0.3s ease;
}

.card:hover {
    border-color: var(--gold);
    box-shadow: 0 5px 20px rgba(212, 175, 55, 0.1);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--medium-gray);
}

.card-title {
    font-size: 1.2rem;
    color: var(--gold);
    display: flex;
    align-items: center;
    gap: 10px;
}

/* ============================================
   STATS GRID
   ============================================ */

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: linear-gradient(135deg, var(--dark-gray) 0%, var(--medium-gray) 100%);
    border: 1px solid var(--gold);
    border-radius: 12px;
    padding: 25px;
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--gold);
}

.stat-card-icon {
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 3rem;
    color: var(--gold);
    opacity: 0.2;
}

.stat-card-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.stat-card-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--white);
}

.stat-card-value.gold {
    color: var(--gold);
}

/* ============================================
   TOP 3 VENDEURS
   ============================================ */

.top-sellers {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.top-seller-card {
    background: var(--dark-gray);
    border: 2px solid var(--medium-gray);
    border-radius: 15px;
    padding: 30px 20px;
    text-align: center;
    position: relative;
    transition: all 0.3s ease;
}

.top-seller-card.gold {
    border-color: #FFD700;
    background: linear-gradient(135deg, var(--dark-gray) 0%, rgba(255, 215, 0, 0.1) 100%);
}

.top-seller-card.silver {
    border-color: #C0C0C0;
}

.top-seller-card.bronze {
    border-color: #CD7F32;
}

.top-seller-rank {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.2rem;
}

.top-seller-rank.gold {
    background: #FFD700;
    color: var(--black);
}

.top-seller-rank.silver {
    background: #C0C0C0;
    color: var(--black);
}

.top-seller-rank.bronze {
    background: #CD7F32;
    color: var(--black);
}

.top-seller-avatar {
    width: 80px;
    height: 80px;
    background: var(--gold);
    border-radius: 50%;
    margin: 20px auto 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: bold;
    color: var(--black);
}

.top-seller-name {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 5px;
}

.top-seller-role {
    font-size: 0.85rem;
    color: var(--gold);
    margin-bottom: 15px;
}

.top-seller-stats {
    display: flex;
    justify-content: space-around;
    padding-top: 15px;
    border-top: 1px solid var(--medium-gray);
}

.top-seller-stat {
    text-align: center;
}

.top-seller-stat-value {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--gold);
}

.top-seller-stat-label {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* ============================================
   TABLES
   ============================================ */

.table-container {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
}

table th,
table td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid var(--medium-gray);
}

table th {
    background: var(--black);
    color: var(--gold);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 1px;
}

table tr:hover {
    background: var(--medium-gray);
}

table td {
    color: var(--white);
}

/* ============================================
   BUTTONS
   ============================================ */

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(90deg, var(--gold) 0%, var(--gold-dark) 100%);
    color: var(--black);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(212, 175, 55, 0.4);
}

.btn-secondary {
    background: var(--medium-gray);
    color: var(--white);
    border: 1px solid var(--gold);
}

.btn-secondary:hover {
    background: var(--gold);
    color: var(--black);
}

.btn-danger {
    background: var(--danger);
    color: var(--white);
}

.btn-danger:hover {
    background: #c82333;
}

.btn-success {
    background: var(--success);
    color: var(--white);
}

.btn-sm {
    padding: 8px 16px;
    font-size: 0.85rem;
}

/* ============================================
   FORMS
   ============================================ */

.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    color: var(--gold);
    font-weight: 500;
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    background: var(--black);
    border: 1px solid var(--medium-gray);
    border-radius: 8px;
    color: var(--white);
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-control:focus {
    outline: none;
    border-color: var(--gold);
    box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.2);
}

.form-control::placeholder {
    color: var(--text-muted);
}

select.form-control {
    cursor: pointer;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.form-row.three-cols {
    grid-template-columns: repeat(3, 1fr);
}

/* ============================================
   MODALS
   ============================================ */

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 2000;
}

.modal-overlay.active {
    display: flex;
}

.modal {
    background: var(--dark-gray);
    border: 2px solid var(--gold);
    border-radius: 15px;
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 25px;
    border-bottom: 1px solid var(--medium-gray);
}

.modal-title {
    font-size: 1.3rem;
    color: var(--gold);
}

.modal-close {
    background: none;
    border: none;
    color: var(--white);
    font-size: 1.5rem;
    cursor: pointer;
    transition: color 0.3s ease;
}

.modal-close:hover {
    color: var(--danger);
}

.modal-body {
    padding: 25px;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    padding: 20px 25px;
    border-top: 1px solid var(--medium-gray);
}

/* ============================================
   BADGES
   ============================================ */

.badge {
    display: inline-block;
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.badge-gold {
    background: var(--gold);
    color: var(--black);
}

.badge-success {
    background: var(--success);
    color: var(--white);
}

.badge-danger {
    background: var(--danger);
    color: var(--white);
}

.badge-warning {
    background: var(--warning);
    color: var(--black);
}

/* ============================================
   ALERTS
   ============================================ */

.alert {
    padding: 15px 20px;
    border-radius: 8px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.alert-success {
    background: rgba(40, 167, 69, 0.2);
    border: 1px solid var(--success);
    color: var(--success);
}

.alert-danger {
    background: rgba(220, 53, 69, 0.2);
    border: 1px solid var(--danger);
    color: var(--danger);
}

.alert-warning {
    background: rgba(255, 193, 7, 0.2);
    border: 1px solid var(--warning);
    color: var(--warning);
}

/* ============================================
   FILE UPLOAD
   ============================================ */

.file-upload {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 30px;
    border: 2px dashed var(--medium-gray);
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.file-upload:hover {
    border-color: var(--gold);
    background: rgba(212, 175, 55, 0.05);
}

.file-upload input {
    position: absolute;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
}

.file-upload i {
    font-size: 2rem;
    color: var(--gold);
    margin-bottom: 10px;
}

.file-upload span {
    color: var(--text-muted);
}

/* ============================================
   BILAN / CLOSURE
   ============================================ */

.bilan-summary {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-bottom: 30px;
}

.bilan-item {
    background: var(--black);
    border: 1px solid var(--medium-gray);
    border-radius: 10px;
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.bilan-item.total {
    grid-column: span 2;
    border-color: var(--gold);
    background: linear-gradient(90deg, var(--black) 0%, rgba(212, 175, 55, 0.1) 100%);
}

.bilan-item-label {
    color: var(--text-muted);
}

.bilan-item-value {
    font-size: 1.5rem;
    font-weight: 700;
}

.bilan-item-value.positive {
    color: var(--success);
}

.bilan-item-value.negative {
    color: var(--danger);
}

.bilan-item-value.gold {
    color: var(--gold);
}

/* ============================================
   EMPLOYEE CARD
   ============================================ */

.employee-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

.employee-card {
    background: var(--dark-gray);
    border: 1px solid var(--medium-gray);
    border-radius: 12px;
    padding: 20px;
    transition: all 0.3s ease;
}

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

.employee-card-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
}

.employee-card-avatar {
    width: 60px;
    height: 60px;
    background: var(--gold);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--black);
}

.employee-card-info h3 {
    font-size: 1.1rem;
    margin-bottom: 5px;
}

.employee-card-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    padding-top: 15px;
    border-top: 1px solid var(--medium-gray);
}

.employee-stat {
    text-align: center;
}

.employee-stat-value {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--gold);
}

.employee-stat-label {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 1200px) {
    .top-sellers {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 992px) {
    .sidebar {
        transform: translateX(-100%);
        transition: transform 0.3s ease;
    }
    
    .sidebar.active {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   ANIMATIONS
   ============================================ */

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in {
    animation: fadeIn 0.5s ease forwards;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.pulse {
    animation: pulse 2s infinite;
}