/* CSS Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Color Palette */
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary-color: #06b6d4;
    --background: #0f172a;
    --surface: #1e293b;
    --surface-light: #334155;
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --accent: #f59e0b;
    --success: #10b981;
    --error: #ef4444;
    --border: #334155;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    
    /* Typography */
    --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    --font-mono: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', monospace;
    
    /* Effects */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: var(--font-primary);
    background-color: var(--background);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

/* Frontend Header */
.frontend-header {
    background: linear-gradient(135deg, var(--surface) 0%, var(--surface-light) 100%);
    padding: var(--space-xl) 0;
    border-bottom: 1px solid var(--border);
    position: relative;
    overflow: hidden;
}

.frontend-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 50%, var(--primary-color) 0%, transparent 50%),
                radial-gradient(circle at 80% 80%, var(--secondary-color) 0%, transparent 50%);
    opacity: 0.1;
    pointer-events: none;
}

.frontend-header h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--secondary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--space-sm);
    position: relative;
    z-index: 1;
}

.frontend-header p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    position: relative;
    z-index: 1;
}

/* Page Grid */
.page-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: var(--space-lg);
    padding: var(--space-xl) 0;
}

/* Page Card */
.page-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    position: relative;
    transition: var(--transition);
    overflow: hidden;
}

.page-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    transform: translateX(-100%);
    transition: transform 0.3s ease;
}

.page-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.page-card:hover::before {
    transform: translateX(0);
}

.page-card h2 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--space-sm);
    color: var(--text-primary);
}

.page-meta {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: var(--space-sm);
}

.page-card p:not(.page-meta) {
    color: var(--text-secondary);
    margin-bottom: var(--space-md);
    line-height: 1.8;
}

/* New Badge */
.new-badge {
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    background: linear-gradient(135deg, var(--accent) 0%, var(--error) 100%);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    animation: pulse 2s infinite;
}

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

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    text-decoration: none;
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

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

/* No Pages Message */
.no-pages {
    grid-column: 1 / -1;
    text-align: center;
    padding: var(--space-xl);
    color: var(--text-muted);
    font-size: 1.125rem;
}

/* Footer */
.frontend-footer {
    background: var(--surface);
    border-top: 1px solid var(--border);
    padding: var(--space-lg) 0;
    margin-top: auto;
}

.frontend-footer p {
    text-align: center;
    color: var(--text-secondary);
}

.admin-link {
    color: var(--primary-light);
    text-decoration: none;
    margin-left: var(--space-sm);
    transition: var(--transition);
}

.admin-link:hover {
    color: var(--primary-color);
    text-decoration: underline;
}

/* Login Page Styles */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-md);
    background: linear-gradient(135deg, var(--background) 0%, var(--surface) 100%);
}

.form-wrapper {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    width: 100%;
    max-width: 400px;
    box-shadow: var(--shadow-xl);
}

.form-wrapper h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--space-lg);
    text-align: center;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--secondary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Form Styles */
.form-group {
    margin-bottom: var(--space-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--space-xs);
    color: var(--text-secondary);
    font-weight: 500;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--background);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

/* Messages */
.message {
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-md);
    font-weight: 500;
}

.message.success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.message.error {
    background: rgba(239, 68, 68, 0.1);
    color: var(--error);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

/* Dashboard Styles */
.dashboard-header {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: var(--space-md) 0;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
}

.dashboard-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.dashboard-nav h1 {
    font-size: 1.5rem;
    font-weight: 700;
}

.nav-links {
    display: flex;
    gap: var(--space-md);
    align-items: center;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
}

.nav-links a:hover {
    color: var(--primary-light);
}

.logout-btn {
    background: rgba(239, 68, 68, 0.1);
    color: var(--error);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

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

/* Table Styles */
.table-wrapper {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin: var(--space-lg) 0;
}

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

th, td {
    padding: var(--space-sm) var(--space-md);
    text-align: left;
    border-bottom: 1px solid var(--border);
}

th {
    background: var(--surface-light);
    font-weight: 600;
    color: var(--text-secondary);
}

tr:hover {
    background: rgba(99, 102, 241, 0.05);
}

/* Action Buttons */
.action-btn {
    padding: 0.375rem 0.75rem;
    font-size: 0.875rem;
    margin-right: var(--space-xs);
}

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

.delete-btn {
    background: var(--error);
}

/* Responsive Design */
@media (max-width: 768px) {
    .page-grid {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }
    
    .dashboard-nav {
        flex-direction: column;
        gap: var(--space-sm);
    }
    
    .nav-links {
        width: 100%;
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .table-wrapper {
        overflow-x: auto;
    }
    
    table {
        min-width: 600px;
    }
    
    .frontend-header h1 {
        font-size: 2rem;
    }
    
    .frontend-header p {
        font-size: 1rem;
    }
    
    /* Fix mobile touch targets */
    .btn, .action-btn {
        min-height: 44px;
        min-width: 44px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
    }
    
    /* Improve mobile spacing */
    .page-card {
        padding: var(--space-md);
    }
    
    .container {
        padding: 0 var(--space-sm);
    }
}

@media (max-width: 480px) {
    .form-wrapper {
        padding: var(--space-md);
    }
    
    .page-grid {
        padding: var(--space-md) 0;
    }
    
    /* Stack buttons on very small screens */
    .action-btn {
        display: block;
        width: 100%;
        margin-bottom: var(--space-xs);
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    :root {
        --primary-color: #818cf8;
        --background: #000;
        --surface: #1a1a1a;
        --text-primary: #fff;
        --border: #666;
    }
}

/* Print Styles */
@media print {
    body {
        background: white;
        color: black;
    }
    
    .frontend-header,
    .frontend-footer,
    .dashboard-header,
    .btn,
    .action-btn {
        display: none;
    }
    
    .page-card {
        break-inside: avoid;
        border: 1px solid #ccc;
    }
}