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

:root {
    --primary: #5F6FFF;
    --secondary: #4F46E5;
    --success: #10B981;
    --warning: #F59E0B;
    --danger: #EF4444;
    --gray-50: #F9FAFB;
    --gray-100: #F3F4F6;
    --gray-200: #E5E7EB;
    --gray-300: #D1D5DB;
    --gray-400: #9CA3AF;
    --gray-500: #6B7280;
    --gray-600: #4B5563;
    --gray-700: #374151;
    --gray-800: #1F2937;
    --gray-900: #111827;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--gray-50);
    color: var(--gray-800);
    line-height: 1.6;
}

.page {
    display: none;
    min-height: 100vh;
}

.page.active {
    display: block;
}

/* Landing Page */
.landing-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 2rem;
}

.logo-section {
    text-align: center;
    color: white;
    margin-bottom: 3rem;
}

.logo {
    width: 200px;
    height: auto;
    margin-bottom: 2rem;
}

.logo-section h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.logo-section p {
    font-size: 1.25rem;
    opacity: 0.9;
}

.auth-buttons {
    display: flex;
    gap: 1rem;
}

/* Login Page */
.login-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 2rem;
}

.login-header {
    text-align: center;
    color: white;
    margin-bottom: 2rem;
}

.logo-small {
    width: 100px;
    height: auto;
    margin-bottom: 1rem;
}

.login-header h2 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.login-header p {
    opacity: 0.9;
}

.login-form {
    background: white;
    padding: 2rem;
    border-radius: 1rem;
    width: 100%;
    max-width: 400px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}

/* Register Page */
.register-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 2rem;
}

.register-header {
    text-align: center;
    color: white;
    margin-bottom: 2rem;
}

.register-form {
    background: white;
    padding: 2rem;
    border-radius: 1rem;
    width: 100%;
    max-width: 500px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    max-height: 80vh;
    overflow-y: auto;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--gray-700);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--gray-200);
    border-radius: 0.5rem;
    font-size: 1rem;
    transition: border-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
}

.search-box {
    display: flex;
    gap: 0.5rem;
}

.search-box input {
    flex: 1;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 0.5rem;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
}

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

.btn-primary:hover {
    background: var(--secondary);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(95, 111, 255, 0.4);
}

.btn-secondary {
    background: var(--gray-200);
    color: var(--gray-700);
}

.btn-secondary:hover {
    background: var(--gray-300);
}

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

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

.btn-full {
    width: 100%;
    justify-content: center;
}

.btn-link {
    background: transparent;
    color: white;
    padding: 0.5rem 1rem;
}

.btn-link:hover {
    text-decoration: underline;
}

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

.btn-logout:hover {
    background: #DC2626;
}

/* Dashboard Layout */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    background: white;
    border-bottom: 1px solid var(--gray-200);
    position: sticky;
    top: 0;
    z-index: 100;
}

.navbar-left {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.navbar-logo {
    width: 150px;
    height: auto;
    cursor: pointer;
}

.badge {
    padding: 0.25rem 0.75rem;
    background: var(--gray-100);
    border: 1px solid var(--gray-300);
    border-radius: 9999px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--gray-600);
}

.main-layout {
    display: flex;
    min-height: calc(100vh - 65px);
}

/* Sidebar */
.sidebar {
    width: 250px;
    background: white;
    border-right: 1px solid var(--gray-200);
    padding: 1rem;
    flex-shrink: 0;
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    color: var(--gray-600);
    text-decoration: none;
    border-radius: 0.5rem;
    transition: all 0.2s;
}

.nav-link:hover {
    background: var(--gray-100);
    color: var(--primary);
}

.nav-link.active {
    background: var(--primary);
    color: white;
}

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

/* Main Content */
.main-content {
    flex: 1;
    padding: 2rem;
    overflow-y: auto;
}

.content-section {
    display: none;
}

.content-section.active {
    display: block;
}

.content-section h2 {
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
    color: var(--gray-800);
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    border-radius: 1rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: transform 0.2s, box-shadow 0.2s;
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}

.stat-card.blue {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.stat-card.purple {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: white;
}

.stat-card.green {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    color: white;
}

.stat-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    font-size: 1.5rem;
}

.stat-info h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.stat-info p {
    font-size: 0.875rem;
    opacity: 0.9;
}

/* Content Card */
.content-card {
    background: white;
    border-radius: 1rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.card-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--gray-200);
    background: linear-gradient(to right, var(--gray-50), white);
}

.card-header h3 {
    font-size: 1.25rem;
    color: var(--gray-800);
}

/* Data List */
.data-list {
    padding: 1rem;
}

.data-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    border-bottom: 1px solid var(--gray-100);
    transition: background 0.2s;
}

.data-item:hover {
    background: var(--gray-50);
}

.data-item:last-child {
    border-bottom: none;
}

.data-item img {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--gray-200);
}

.data-info {
    flex: 1;
}

.data-info h4 {
    font-size: 1rem;
    font-weight: 500;
    color: var(--gray-800);
    margin-bottom: 0.25rem;
}

.data-info p {
    font-size: 0.875rem;
    color: var(--gray-500);
}

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

.data-actions button {
    padding: 0.5rem;
    border: none;
    border-radius: 0.375rem;
    cursor: pointer;
    transition: all 0.2s;
}

.data-actions button:hover {
    opacity: 0.8;
}

/* Search Section */
.search-section {
    padding: 1.5rem;
    border-bottom: 1px solid var(--gray-200);
}

.form {
    padding: 1.5rem;
}

/* Status Badges */
.status-badge {
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 500;
}

.status-badge.active {
    background: #D1FAE5;
    color: #065F46;
}

.status-badge.inactive {
    background: #FEE2E2;
    color: #991B1B;
}

.status-badge.pending {
    background: #FEF3C7;
    color: #92400E;
}

/* Responsive */
@media (max-width: 768px) {
    .main-layout {
        flex-direction: column;
    }
    
    .sidebar {
        width: 100%;
        border-right: none;
        border-bottom: 1px solid var(--gray-200);
    }
    
    .sidebar-nav {
        flex-direction: row;
        overflow-x: auto;
        padding-bottom: 0.5rem;
    }
    
    .nav-link {
        white-space: nowrap;
    }
    
    .search-box {
        flex-direction: column;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
}