:root {
    --primary: #0078d4;
    --primary-dark: #005a9e;
    --primary-light: #60cdff;
    --accent: #00b7c3;
    --bg: #0a0a0a;
    --bg-card: #1a1a1a;
    --bg-surface: #242424;
    --text: #ffffff;
    --text-secondary: #a0a0a0;
    --text-muted: #666666;
    --border: #333333;
    --success: #0f7b0f;
    --error: #d13438;
    --warning: #ffaa44;
    --radius: 8px;
    --radius-lg: 12px;
    --shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 48px rgba(0, 0, 0, 0.6);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
}

a {
    color: var(--primary-light);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--primary);
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 10, 10, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text);
}

.logo:hover {
    color: var(--text);
}

.logo-img {
    height: 40px;
    width: auto;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

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

.nav-link {
    color: var(--text-secondary);
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: var(--radius);
    transition: var(--transition);
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--text);
    background: rgba(255, 255, 255, 0.08);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 2px;
    background: var(--primary);
    border-radius: 1px;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background: var(--text);
    transition: var(--transition);
}

/* Homepage - Lumia Tile Grid */
.homepage {
    padding-top: 90px;
    min-height: 100vh;
}

.tile-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    grid-auto-rows: 200px;
    gap: 8px;
    padding: 1rem;
    max-width: 1600px;
    margin: 0 auto;
}

.tile {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius);
    background: var(--bg-card);
    transition: var(--transition);
    cursor: pointer;
}

.tile:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-lg);
    z-index: 10;
}

.tile img,
.tile video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.tile-small {
    grid-column: span 1;
    grid-row: span 1;
}

.tile-medium {
    grid-column: span 2;
    grid-row: span 2;
}

.tile-large {
    grid-column: span 2;
    grid-row: span 3;
}

@media (min-width: 1200px) {
    .tile-large {
        grid-column: span 3;
        grid-row: span 3;
    }
}

.empty-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-secondary);
}

.empty-state a {
    color: var(--primary-light);
    text-decoration: underline;
}

/* Submit Page */
.submit-page {
    padding-top: 100px;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    padding-bottom: 4rem;
}

.form-container {
    max-width: 600px;
    width: 100%;
    padding: 2rem;
}

.form-container h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    letter-spacing: -1px;
}

.form-subtitle {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    font-size: 1.1rem;
}

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

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

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="password"],
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.875rem 1rem;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    font-size: 1rem;
    transition: var(--transition);
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0, 120, 212, 0.2);
}

.form-group small {
    display: block;
    margin-top: 0.25rem;
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* File Upload */
.file-upload {
    position: relative;
    border: 2px dashed var(--border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
}

.file-upload:hover,
.file-upload.dragover {
    border-color: var(--primary);
    background: rgba(0, 120, 212, 0.05);
}

.file-input {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
}

.file-upload-label {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
}

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

.file-size-hint {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.file-preview {
    margin-top: 1rem;
    padding: 1rem;
    background: var(--bg-surface);
    border-radius: var(--radius);
}

.file-preview img,
.file-preview video {
    max-width: 100%;
    max-height: 200px;
    border-radius: var(--radius);
}

/* Checkbox */
.checkbox-group {
    margin-top: 1rem;
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    width: 20px;
    height: 20px;
    margin-top: 2px;
    accent-color: var(--primary);
}

.checkbox-label a {
    text-decoration: underline;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    border-radius: var(--radius);
    font-size: 1rem;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

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

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

.btn-outline {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text);
}

.btn-outline:hover {
    background: var(--bg-surface);
    color: var(--text);
}

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

.btn-danger:hover {
    background: #a4262c;
    color: white;
}

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

.btn-success:hover {
    background: #0b6a0b;
    color: white;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn-block {
    width: 100%;
}

.btn-submit {
    width: 100%;
    padding: 1rem;
    font-size: 1.1rem;
    margin-top: 1rem;
}

/* Alerts */
.alert {
    padding: 1rem 1.25rem;
    border-radius: var(--radius);
    margin-bottom: 1.5rem;
}

.alert ul {
    margin: 0;
    padding-left: 1.25rem;
}

.alert-error {
    background: rgba(209, 52, 56, 0.15);
    border: 1px solid rgba(209, 52, 56, 0.3);
    color: #ff6b6b;
}

.alert-success {
    background: rgba(15, 123, 15, 0.15);
    border: 1px solid rgba(15, 123, 15, 0.3);
    color: #6ccb5f;
}

/* Blog Page */
.blog-page {
    padding-top: 100px;
    min-height: 100vh;
    padding-bottom: 4rem;
}

.blog-header {
    text-align: center;
    padding: 2rem;
    margin-bottom: 2rem;
}

.blog-header h1 {
    font-size: 3rem;
    font-weight: 700;
    letter-spacing: -1px;
    margin-bottom: 0.5rem;
}

.blog-header p {
    color: var(--text-secondary);
    font-size: 1.2rem;
}

.blog-grid {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2rem;
}

.blog-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition);
    border: 1px solid var(--border);
}

.blog-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(255, 255, 255, 0.15);
}

.blog-card-image {
    display: block;
    overflow: hidden;
}

.blog-card-image img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    transition: var(--transition);
}

.blog-card:hover .blog-card-image img {
    transform: scale(1.05);
}

.blog-card-content {
    padding: 1.5rem;
}

.blog-card-content h2 {
    font-size: 1.35rem;
    margin-bottom: 0.5rem;
    line-height: 1.3;
}

.blog-card-content h2 a {
    color: var(--text);
}

.blog-card-content h2 a:hover {
    color: var(--primary-light);
}

.blog-author {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 0.75rem;
}

.blog-excerpt {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 1rem;
    line-height: 1.5;
}

.blog-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.read-more {
    color: var(--primary-light);
    font-weight: 500;
}

/* Blog Post Page */
.blog-post-page {
    padding-top: 100px;
    min-height: 100vh;
    padding-bottom: 4rem;
}

.blog-post {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 2rem;
}

.blog-post-image {
    margin-bottom: 2rem;
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.blog-post-image img {
    width: 100%;
    height: auto;
    display: block;
}

.blog-post-header {
    margin-bottom: 2rem;
}

.blog-post-header h1 {
    font-size: 2.75rem;
    font-weight: 700;
    letter-spacing: -1px;
    line-height: 1.2;
    margin-bottom: 1rem;
}

.blog-post-meta {
    display: flex;
    gap: 1.5rem;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.blog-post-content {
    font-size: 1.1rem;
    line-height: 1.8;
}

.blog-post-content p {
    margin-bottom: 1.25rem;
}

.blog-post-content h2,
.blog-post-content h3 {
    margin: 2rem 0 1rem;
}

.blog-post-content img {
    max-width: 100%;
    border-radius: var(--radius);
    margin: 1.5rem 0;
}

.blog-post-content blockquote {
    border-left: 4px solid var(--primary);
    padding-left: 1.5rem;
    margin: 1.5rem 0;
    color: var(--text-secondary);
    font-style: italic;
}

.blog-post-content ul,
.blog-post-content ol {
    margin: 1rem 0;
    padding-left: 2rem;
}

.blog-post-content a {
    text-decoration: underline;
}

.back-to-blog {
    display: inline-block;
    margin-top: 3rem;
    color: var(--primary-light);
    font-weight: 500;
}

/* Terms Page */
.terms-page {
    padding-top: 100px;
    min-height: 100vh;
    padding-bottom: 4rem;
}

.terms-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem;
}

.terms-container h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.last-updated {
    color: var(--text-muted);
    margin-bottom: 2rem;
}

.terms-content section {
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--border);
}

.terms-content section:last-child {
    border-bottom: none;
}

.terms-content h2 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text);
}

.terms-content p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Footer */
.footer {
    background: var(--bg-card);
    border-top: 1px solid var(--border);
    padding: 2rem;
    margin-top: auto;
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-content p {
    color: var(--text-muted);
}

/* Admin Login Page */
.admin-login-page {
    background: linear-gradient(135deg, #0a0a0a 0%, #1a1a2e 50%, #16213e 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.admin-login-container {
    width: 100%;
    max-width: 420px;
    padding: 2rem;
}

.admin-login-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
}

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

.admin-logo {
    height: 60px;
    margin-bottom: 1rem;
}

.admin-login-header h1 {
    font-size: 1.75rem;
    margin-bottom: 0.5rem;
}

.admin-login-header p {
    color: var(--text-secondary);
}

.admin-login-form .form-group {
    margin-bottom: 1.25rem;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        background: rgba(10, 10, 10, 0.95);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 1rem;
        gap: 0.5rem;
        border-bottom: 1px solid var(--border);
    }

    .nav-links.active {
        display: flex;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .tile-grid {
        grid-template-columns: repeat(2, 1fr);
        grid-auto-rows: 150px;
    }

    .tile-medium {
        grid-column: span 2;
        grid-row: span 2;
    }

    .tile-large {
        grid-column: span 2;
        grid-row: span 2;
    }

    .blog-grid {
        grid-template-columns: 1fr;
    }

    .blog-header h1 {
        font-size: 2rem;
    }

    .blog-post-header h1 {
        font-size: 2rem;
    }

    .form-container h1 {
        font-size: 2rem;
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .tile-grid {
        grid-template-columns: repeat(2, 1fr);
        grid-auto-rows: 120px;
        gap: 4px;
        padding: 0.5rem;
    }

    .nav-container {
        padding: 0 1rem;
    }

    .form-container {
        padding: 1rem;
    }
}