/* ===== Global Styles ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --color-primary: #000000;
    --color-accent: #FFD700;
    --color-accent-dark: #FFC107;
    --color-bg: #0a0a0a;
    --color-card: #1a1a1a;
    --color-text: #ffffff;
    --color-text-secondary: #b0b0b0;
    --color-border: #333333;
    --color-success: #4caf50;
    --color-warning: #ff9800;
    --color-danger: #f44336;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.5);
    --border-radius: 12px;
    --transition: all 0.3s ease;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    min-height: 100vh;
}

/* ===== Login Pages ===== */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
    background: linear-gradient(135deg, #000000 0%, #1a1a1a 100%);
}

.login-box {
    background: var(--color-card);
    padding: 40px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 400px;
    border: 1px solid var(--color-border);
}

.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.login-header h1 {
    color: var(--color-accent);
    font-size: 28px;
    margin-bottom: 10px;
    font-weight: 700;
}

.login-header p {
    color: var(--color-text-secondary);
    font-size: 14px;
}

.login-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: var(--color-accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 40px;
}

/* ===== Forms ===== */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--color-text);
    font-weight: 500;
    font-size: 14px;
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    background: var(--color-primary);
    border: 2px solid var(--color-border);
    border-radius: 8px;
    color: var(--color-text);
    font-size: 15px;
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--color-accent);
    background: #000;
}

.form-control::placeholder {
    color: #666;
}

/* ===== Buttons ===== */
.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    text-decoration: none;
}

.btn-primary {
    background: var(--color-accent);
    color: var(--color-primary);
    width: 100%;
}

.btn-primary:hover {
    background: var(--color-accent-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 215, 0, 0.3);
}

.btn-secondary {
    background: var(--color-card);
    color: var(--color-text);
    border: 2px solid var(--color-border);
}

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

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

.btn-danger:hover {
    background: #d32f2f;
}

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

.btn-success:hover {
    background: #388e3c;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 13px;
}

/* ===== Alerts ===== */
.alert {
    padding: 14px 18px;
    border-radius: 8px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
}

.alert-success {
    background: rgba(76, 175, 80, 0.1);
    border: 1px solid var(--color-success);
    color: var(--color-success);
}

.alert-danger {
    background: rgba(244, 67, 54, 0.1);
    border: 1px solid var(--color-danger);
    color: var(--color-danger);
}

.alert-warning {
    background: rgba(255, 152, 0, 0.1);
    border: 1px solid var(--color-warning);
    color: var(--color-warning);
}

/* ===== Dashboard Layout ===== */
.dashboard {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: 260px;
    background: var(--color-card);
    border-right: 1px solid var(--color-border);
    position: fixed;
    height: 100vh;
    overflow-y: auto;
    transition: var(--transition);
    z-index: 1000;
}

.sidebar-header {
    padding: 25px 20px;
    border-bottom: 1px solid var(--color-border);
}

.sidebar-header h2 {
    color: var(--color-accent);
    font-size: 20px;
    margin-bottom: 5px;
}

.sidebar-header p {
    color: var(--color-text-secondary);
    font-size: 13px;
}

.sidebar-menu {
    padding: 20px 0;
}

.menu-item {
    padding: 14px 20px;
    color: var(--color-text);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 12px;
    transition: var(--transition);
    border-left: 3px solid transparent;
}

.menu-item:hover, .menu-item.active {
    background: rgba(255, 215, 0, 0.1);
    border-left-color: var(--color-accent);
    color: var(--color-accent);
}

.menu-item i {
    font-size: 18px;
    width: 24px;
}

.sidebar-footer {
    padding: 20px;
    border-top: 1px solid var(--color-border);
    position: absolute;
    bottom: 0;
    width: 100%;
    background: var(--color-card);
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: 260px;
    padding: 30px;
    min-height: 100vh;
}

/* Header */
.content-header {
    margin-bottom: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.content-header h1 {
    font-size: 28px;
    color: var(--color-text);
}

.header-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

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

.stat-card {
    background: var(--color-card);
    padding: 25px;
    border-radius: var(--border-radius);
    border: 1px solid var(--color-border);
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-accent);
}

.stat-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.stat-title {
    color: var(--color-text-secondary);
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-icon {
    width: 45px;
    height: 45px;
    background: rgba(255, 215, 0, 0.1);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-accent);
    font-size: 22px;
}

.stat-value {
    font-size: 32px;
    font-weight: 700;
    color: var(--color-accent);
    margin-bottom: 5px;
}

.stat-label {
    color: var(--color-text-secondary);
    font-size: 13px;
}

/* Cards */
.card {
    background: var(--color-card);
    border-radius: var(--border-radius);
    border: 1px solid var(--color-border);
    margin-bottom: 20px;
    overflow: hidden;
}

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

.card-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-text);
}

.card-body {
    padding: 25px;
}

/* Tables */
.table-container {
    overflow-x: auto;
}

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

thead {
    background: var(--color-primary);
}

thead th {
    padding: 15px;
    text-align: left;
    color: var(--color-accent);
    font-weight: 600;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 2px solid var(--color-accent);
}

tbody tr {
    border-bottom: 1px solid var(--color-border);
    transition: var(--transition);
}

tbody tr:hover {
    background: rgba(255, 215, 0, 0.05);
}

tbody td {
    padding: 15px;
    color: var(--color-text);
    font-size: 14px;
}

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

.badge-success {
    background: rgba(76, 175, 80, 0.2);
    color: var(--color-success);
}

.badge-warning {
    background: rgba(255, 152, 0, 0.2);
    color: var(--color-warning);
}

.badge-danger {
    background: rgba(244, 67, 54, 0.2);
    color: var(--color-danger);
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    z-index: 2000;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--color-card);
    border-radius: var(--border-radius);
    border: 1px solid var(--color-border);
    max-width: 600px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
}

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

.modal-title {
    font-size: 20px;
    color: var(--color-accent);
}

.modal-close {
    background: none;
    border: none;
    color: var(--color-text);
    font-size: 24px;
    cursor: pointer;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 5px;
    transition: var(--transition);
}

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

.modal-body {
    padding: 25px;
}

/* Filter Section */
.filter-section {
    background: var(--color-card);
    padding: 20px;
    border-radius: var(--border-radius);
    border: 1px solid var(--color-border);
    margin-bottom: 20px;
}

.filter-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    margin-bottom: 15px;
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.active {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
        padding: 20px 15px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .content-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .filter-grid {
        grid-template-columns: 1fr;
    }
    
    .login-box {
        padding: 30px 20px;
    }
    
    table {
        font-size: 13px;
    }
    
    thead th, tbody td {
        padding: 10px;
    }
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    position: fixed;
    top: 20px;
    left: 20px;
    z-index: 1001;
    background: var(--color-accent);
    color: var(--color-primary);
    border: none;
    width: 45px;
    height: 45px;
    border-radius: 10px;
    font-size: 20px;
    cursor: pointer;
    box-shadow: var(--shadow);
}

@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
    }
}

/* Loading Spinner */
.spinner {
    border: 3px solid var(--color-border);
    border-top: 3px solid var(--color-accent);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 20px auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--color-text-secondary);
}

.empty-state i {
    font-size: 64px;
    color: var(--color-border);
    margin-bottom: 20px;
}

.empty-state h3 {
    font-size: 20px;
    margin-bottom: 10px;
    color: var(--color-text);
}

/* Utility Classes */
.text-center { text-align: center; }
.text-right { text-align: right; }
.mt-10 { margin-top: 10px; }
.mt-20 { margin-top: 20px; }
.mb-10 { margin-bottom: 10px; }
.mb-20 { margin-bottom: 20px; }
.flex { display: flex; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.gap-10 { gap: 10px; }
.hidden { display: none; }