:root {
    --bg-dark: #0f172a;
    --text-light: #f8fafc;
    --text-dim: #94a3b8;
    --primary: #8b5cf6;
    --secondary: #ec4899;
    --glass-bg: rgba(30, 41, 59, 0.7);
    --glass-border: rgba(255, 255, 255, 0.1);
    --card-bg: rgba(255, 255, 255, 0.05);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Outfit', sans-serif;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-light);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

/* Background Animation */
.background-blobs {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
    animation: float 10s infinite ease-in-out;
}

.blob-1 {
    width: 400px;
    height: 400px;
    background: var(--primary);
    top: -100px;
    left: -100px;
}

.blob-2 {
    width: 300px;
    height: 300px;
    background: var(--secondary);
    bottom: -50px;
    right: -50px;
    animation-delay: 2s;
}

.blob-3 {
    width: 200px;
    height: 200px;
    background: #3b82f6;
    top: 40%;
    left: 40%;
    animation-delay: 4s;
}

@keyframes float {

    0%,
    100% {
        transform: translate(0, 0);
    }

    50% {
        transform: translate(30px, -30px);
    }
}

/* Layout */
.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 40px 20px;
    text-align: center;
}

.hero {
    margin-bottom: 60px;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    color: var(--text-light);
}

h1 {
    font-size: 3.5rem;
}

/* Upload Zone */
.upload-zone {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    border: 2px dashed var(--glass-border);
    border-radius: 24px;
    padding: 60px;
    margin-bottom: 40px;
    transition: all 0.3s ease;
    cursor: pointer;
}

.upload-zone:hover,
.upload-zone.drag-over {
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px -10px rgba(139, 92, 246, 0.3);
}

.upload-icon {
    font-size: 4rem;
    color: var(--text-dim);
    margin-bottom: 20px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border: none;
    padding: 12px 32px;
    border-radius: 50px;
    color: white;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s;
    margin-top: 15px;
}

.btn-primary:hover {
    transform: scale(1.05);
}

/* Controls */
.controls {
    background: var(--card-bg);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 20px;
    margin-bottom: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.hidden {
    display: none !important;
}

.control-group {
    display: flex;
    align-items: center;
    gap: 15px;
}

input[type="range"] {
    accent-color: var(--primary);
}

.btn-secondary {
    background: transparent;
    border: 1px solid var(--glass-border);
    color: var(--text-light);
    padding: 10px 20px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-secondary:hover:not(:disabled) {
    background: rgba(255, 255, 255, 0.1);
}

.btn-secondary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Results Grid */
.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 60px;
}

.result-card {
    background: var(--card-bg);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 15px;
    text-align: left;
    position: relative;
    overflow: hidden;
}

.preview-img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 10px;
    background: #000;
}

.file-info {
    font-size: 0.9rem;
    color: var(--text-dim);
    margin-bottom: 10px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.status-badge {
    position: absolute;
    top: 10px;
    right: 10px;
    background: rgba(0, 0, 0, 0.6);
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.8rem;
}

.download-link {
    display: block;
    text-align: center;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    text-decoration: none;
    padding: 8px;
    border-radius: 6px;
    font-size: 0.9rem;
    transition: background 0.2s;
}

.download-link:hover {
    background: var(--primary);
}

/* SEO Content */
.seo-content {
    text-align: left;
    border-top: 1px solid var(--glass-border);
    padding-top: 60px;
}

.seo-content h2 {
    text-align: center;
    margin-bottom: 40px;
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.feature-card {
    background: var(--card-bg);
    padding: 30px;
    border-radius: 16px;
    text-align: center;
    border: 1px solid var(--glass-border);
}

.feature-card i {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 20px;
}

.feature-card h3 {
    margin-bottom: 10px;
}

.feature-card p {
    color: var(--text-dim);
    line-height: 1.6;
}

footer {
    text-align: center;
    padding: 40px;
    color: var(--text-dim);
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 768px) {
    h1 {
        font-size: 2.5rem;
    }

    .upload-zone {
        padding: 40px 20px;
    }
}

/* Comparison Table */
.comparison-section {
    margin-bottom: 60px;
    text-align: center;
}

.comparison-section h2 {
    margin-bottom: 30px;
}

.comparison-table-container {
    overflow-x: auto;
    background: var(--glass-bg);
    border-radius: 16px;
    border: 1px solid var(--glass-border);
    padding: 20px;
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 500px;
}

.comparison-table th,
.comparison-table td {
    padding: 15px;
    text-align: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.comparison-table th {
    font-size: 1.1rem;
    color: var(--text-dim);
}

.comparison-table .highlight {
    color: var(--primary);
    font-weight: 700;
    background: rgba(139, 92, 246, 0.1);
    border-radius: 8px;
}

.control-group {
    display: flex;
    align-items: center;
    gap: 15px;
}

input[type="range"] {
    accent-color: var(--primary);
}

.btn-secondary {
    background: transparent;
    border: 1px solid var(--glass-border);
    color: var(--text-light);
    padding: 10px 20px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-secondary:hover:not(:disabled) {
    background: rgba(255, 255, 255, 0.1);
}

.btn-secondary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Results Grid */
.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 60px;
}

.result-card {
    background: var(--card-bg);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 15px;
    text-align: left;
    position: relative;
    overflow: hidden;
}

.preview-img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 10px;
    background: #000;
}

.file-info {
    font-size: 0.9rem;
    color: var(--text-dim);
    margin-bottom: 10px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.status-badge {
    position: absolute;
    top: 10px;
    right: 10px;
    background: rgba(0, 0, 0, 0.6);
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.8rem;
}

.download-link {
    display: block;
    text-align: center;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    text-decoration: none;
    padding: 8px;
    border-radius: 6px;
    font-size: 0.9rem;
    transition: background 0.2s;
}

.download-link:hover {
    background: var(--primary);
}

/* SEO Content */
.seo-content {
    text-align: left;
    border-top: 1px solid var(--glass-border);
    padding-top: 60px;
}

.seo-content h2 {
    text-align: center;
    margin-bottom: 40px;
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.feature-card {
    background: var(--card-bg);
    padding: 30px;
    border-radius: 16px;
    text-align: center;
    border: 1px solid var(--glass-border);
}

.feature-card i {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 20px;
}

.feature-card h3 {
    margin-bottom: 10px;
}

.feature-card p {
    color: var(--text-dim);
    line-height: 1.6;
}

footer {
    text-align: center;
    padding: 40px;
    color: var(--text-dim);
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 768px) {
    h1 {
        font-size: 2.5rem;
    }

    .upload-zone {
        padding: 40px 20px;
    }
}

/* Comparison Table */
.comparison-section {
    margin-bottom: 60px;
    text-align: center;
}

.comparison-section h2 {
    margin-bottom: 30px;
}

.comparison-table-container {
    overflow-x: auto;
    background: var(--glass-bg);
    border-radius: 16px;
    border: 1px solid var(--glass-border);
    padding: 20px;
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 500px;
}

.comparison-table th,
.comparison-table td {
    padding: 15px;
    text-align: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.comparison-table th {
    font-size: 1.1rem;
    color: var(--text-dim);
}

.comparison-table .highlight {
    color: var(--primary);
    font-weight: 700;
    background: rgba(139, 92, 246, 0.1);
    border-radius: 8px;
}

.comparison-table i {
    margin-right: 5px;
}

.comparison-table tr:last-child td {
    border-bottom: none;
}

/* FAQ Section */
.faq-section {
    margin-bottom: 60px;
    text-align: left;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.faq-section h2 {
    text-align: center;
    margin-bottom: 40px;
}

.faq-grid {
    display: grid;
    gap: 20px;
}

.faq-item {
    background: var(--card-bg);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 25px;
    transition: background 0.3s;
}

.faq-item:hover {
    background: rgba(255, 255, 255, 0.08);
}

.faq-item h3 {
    color: var(--primary);
    margin-bottom: 10px;
    font-size: 1.2rem;
}

.faq-item p {
    color: var(--text-dim);
    line-height: 1.6;
}