/* ============================================
   FileForge — Premium File Converter
   ============================================ */

:root {
    --bg-primary: #08080d;
    --bg-secondary: #0e0e16;
    --bg-card: #13131e;
    --bg-card-hover: #1a1a2a;
    --bg-surface: rgba(255,255,255,0.03);
    --border: rgba(255,255,255,0.06);
    --border-hover: rgba(255,255,255,0.12);
    --text-primary: #f0f0f5;
    --text-secondary: #8888a0;
    --text-muted: #55556a;
    --accent-1: #667eea;
    --accent-2: #764ba2;
    --accent-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --success: #00d4aa;
    --error: #ff4757;
    --warning: #ffa502;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --shadow-card: 0 4px 24px rgba(0,0,0,0.3), 0 0 0 1px var(--border);
    --shadow-glow: 0 0 60px rgba(102,126,234,0.08);
    --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

/* Light Theme */
[data-theme="light"] {
    --bg-primary: #f8f9fc;
    --bg-secondary: #ffffff;
    --bg-card: #ffffff;
    --bg-card-hover: #f3f4f8;
    --bg-surface: rgba(0,0,0,0.03);
    --border: rgba(0,0,0,0.08);
    --border-hover: rgba(0,0,0,0.15);
    --text-primary: #1a1a2e;
    --text-secondary: #6b6b80;
    --text-muted: #9999aa;
    --shadow-card: 0 4px 24px rgba(0,0,0,0.08), 0 0 0 1px var(--border);
    --shadow-glow: 0 0 60px rgba(102,126,234,0.06);
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

.container {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ==== Scroll Progress ==== */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    width: 0%;
    background: var(--accent-gradient);
    z-index: 200;
    transition: width 0.1s linear;
}

/* ==== Navbar ==== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 16px 0;
    background: rgba(8,8,13,0.75);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    transition: var(--transition);
}

[data-theme="light"] .navbar {
    background: rgba(248,249,252,0.85);
}

.navbar.scrolled {
    padding: 10px 0;
    box-shadow: 0 2px 20px rgba(0,0,0,0.15);
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 700;
    font-size: 18px;
    letter-spacing: -0.02em;
}

.nav-links {
    display: flex;
    gap: 28px;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 500;
    transition: color var(--transition);
    position: relative;
}

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

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-gradient);
    border-radius: 1px;
    transition: width var(--transition);
}

.nav-links a:hover::after {
    width: 100%;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.theme-toggle {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 8px;
    cursor: pointer;
    color: var(--text-secondary);
    transition: var(--transition);
    display: flex;
    align-items: center;
}

.theme-toggle:hover {
    color: var(--text-primary);
    border-color: var(--border-hover);
}

.icon-moon { display: none; }
[data-theme="light"] .icon-sun { display: none; }
[data-theme="light"] .icon-moon { display: block; }

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.mobile-menu-btn span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text-secondary);
    border-radius: 2px;
    transition: var(--transition);
}

@media (max-width: 768px) {
    .nav-links { display: none; }
    .mobile-menu-btn { display: flex; }
    .nav-links.open {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg-secondary);
        border-bottom: 1px solid var(--border);
        padding: 16px 24px;
        gap: 16px;
    }
    .nav-links.open a::after { display: none; }
}

/* ==== Hero ==== */
.hero {
    position: relative;
    padding: 160px 0 80px;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero-bg-glow {
    position: absolute;
    top: -200px;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 600px;
    background: radial-gradient(ellipse at center, rgba(102,126,234,0.08) 0%, transparent 70%);
    pointer-events: none;
}

.hero-grid-bg {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
    mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
}

[data-theme="light"] .hero-grid-bg {
    background-image:
        linear-gradient(rgba(0,0,0,0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0,0,0,0.04) 1px, transparent 1px);
}

.hero-badge {
    text-align: center;
    margin-bottom: 24px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: 50px;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    margin: 0 auto 24px;
}

.hero .container {
    text-align: center;
}

.badge-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--success);
    animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

.hero-text {
    text-align: center;
    margin-bottom: 48px;
}

.hero-text h1 {
    font-size: clamp(32px, 5vw, 60px);
    font-weight: 900;
    line-height: 1.1;
    letter-spacing: -0.04em;
    margin-bottom: 20px;
}

.gradient-text {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 17px;
    color: var(--text-secondary);
    line-height: 1.7;
    max-width: 560px;
    margin: 0 auto 32px;
}

.hero-ctas {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-hero-primary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    background: var(--accent-gradient);
    color: #fff;
    border: none;
    border-radius: var(--radius-md);
    font-size: 15px;
    font-weight: 600;
    font-family: var(--font);
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
}

.btn-hero-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(102,126,234,0.3);
}

.btn-hero-secondary {
    display: inline-flex;
    align-items: center;
    padding: 14px 28px;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    font-size: 15px;
    font-weight: 500;
    font-family: var(--font);
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
}

.btn-hero-secondary:hover {
    border-color: var(--border-hover);
    color: var(--text-primary);
}

/* ==== Converter Card ==== */
.converter-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 40px;
    box-shadow: var(--shadow-card), var(--shadow-glow);
    max-width: 640px;
    margin: 0 auto;
    min-height: 300px;
    position: relative;
}

.converter-mode-toggle {
    display: flex;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 3px;
    margin-bottom: 24px;
}

.mode-btn {
    flex: 1;
    padding: 8px 16px;
    background: none;
    border: none;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 600;
    font-family: var(--font);
    color: var(--text-muted);
    cursor: pointer;
    transition: var(--transition);
}

.mode-btn.active {
    background: var(--accent-gradient);
    color: #fff;
}

.mode-btn:not(.active):hover {
    color: var(--text-secondary);
}

.converter-step {
    display: none;
    animation: fadeIn 0.3s ease;
}

.converter-step.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ==== Upload Zone ==== */
.upload-zone {
    border: 2px dashed rgba(255,255,255,0.1);
    border-radius: var(--radius-lg);
    padding: 56px 32px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
}

[data-theme="light"] .upload-zone {
    border-color: rgba(0,0,0,0.12);
}

.upload-zone:hover,
.upload-zone.drag-over {
    border-color: var(--accent-1);
    background: rgba(102,126,234,0.04);
}

.upload-zone.drag-over {
    transform: scale(1.01);
}

.upload-icon {
    color: var(--text-muted);
    margin-bottom: 16px;
    transition: color var(--transition);
}

.upload-zone:hover .upload-icon {
    color: var(--accent-1);
}

.upload-zone h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

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

.browse-link {
    background: none;
    border: none;
    color: var(--accent-1);
    cursor: pointer;
    font-size: inherit;
    font-family: inherit;
    text-decoration: underline;
    text-underline-offset: 2px;
}

.upload-hint {
    margin-top: 16px !important;
    font-size: 13px !important;
    color: var(--text-muted) !important;
}

.upload-shortcuts {
    text-align: center;
    margin-top: 16px;
    font-size: 12px;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    flex-wrap: wrap;
}

.shortcut-key {
    display: inline-block;
    padding: 2px 6px;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
    font-family: 'SF Mono', 'Fira Code', monospace;
    color: var(--text-secondary);
}

.shortcut-divider {
    margin: 0 4px;
}

/* ==== File Info ==== */
.file-info {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    margin-bottom: 28px;
}

.file-preview {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-sm);
    background: var(--bg-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    overflow: hidden;
    flex-shrink: 0;
}

.file-preview img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--radius-sm);
}

.file-details {
    flex: 1;
    min-width: 0;
}

.file-details h3 {
    font-size: 15px;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.file-details p {
    font-size: 13px;
    color: var(--text-secondary);
    margin-top: 2px;
}

.btn-remove {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 6px;
    border-radius: var(--radius-sm);
    transition: var(--transition);
    flex-shrink: 0;
}

.btn-remove:hover {
    color: var(--error);
    background: rgba(255,71,87,0.1);
}

/* ==== Format Grid ==== */
.format-section h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.format-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(72px, 1fr));
    gap: 8px;
    margin-bottom: 24px;
}

.format-btn {
    padding: 10px 8px;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 600;
    font-family: var(--font);
    cursor: pointer;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 0.02em;
    text-align: center;
}

.format-btn:hover {
    border-color: var(--border-hover);
    color: var(--text-primary);
    background: var(--bg-card-hover);
}

.format-btn.active {
    border-color: var(--accent-1);
    color: var(--accent-1);
    background: rgba(102,126,234,0.08);
    box-shadow: 0 0 0 1px var(--accent-1);
}

/* ==== Options ==== */
.options-section {
    margin-bottom: 24px;
    display: none;
}

.options-section.visible {
    display: block;
}

.option-group {
    display: none;
    margin-bottom: 16px;
}

.option-group.visible {
    display: block;
}

.option-group label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.slider-row {
    display: flex;
    align-items: center;
    gap: 12px;
}

.slider {
    flex: 1;
    -webkit-appearance: none;
    appearance: none;
    height: 4px;
    background: rgba(255,255,255,0.08);
    border-radius: 2px;
    outline: none;
}

[data-theme="light"] .slider {
    background: rgba(0,0,0,0.08);
}

.slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--accent-1);
    cursor: pointer;
    border: 2px solid var(--bg-card);
    box-shadow: 0 0 8px rgba(102,126,234,0.3);
}

.slider::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--accent-1);
    cursor: pointer;
    border: 2px solid var(--bg-card);
}

#quality-value {
    font-size: 14px;
    font-weight: 600;
    color: var(--accent-1);
    min-width: 40px;
    text-align: right;
}

.ico-sizes {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.ico-size-btn {
    padding: 6px 14px;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 600;
    font-family: var(--font);
    cursor: pointer;
    transition: var(--transition);
}

.ico-size-btn:hover {
    border-color: var(--border-hover);
    color: var(--text-primary);
}

.ico-size-btn.active {
    border-color: var(--accent-1);
    color: var(--accent-1);
    background: rgba(102,126,234,0.08);
}

/* ==== Resize Controls ==== */
.resize-controls {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 10px;
}

.resize-input-wrap {
    flex: 1;
    position: relative;
}

.resize-input {
    width: 100%;
    padding: 8px 32px 8px 12px;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 14px;
    font-family: var(--font);
    outline: none;
    transition: var(--transition);
}

.resize-input:focus {
    border-color: var(--accent-1);
}

.resize-unit {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 12px;
    color: var(--text-muted);
}

.resize-lock {
    width: 36px;
    height: 36px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg-surface);
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    flex-shrink: 0;
}

.resize-lock.active {
    border-color: var(--accent-1);
    color: var(--accent-1);
    background: rgba(102,126,234,0.08);
}

.resize-presets {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.resize-preset {
    padding: 4px 10px;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
    font-family: var(--font);
    color: var(--text-muted);
    cursor: pointer;
    transition: var(--transition);
}

.resize-preset:hover {
    color: var(--text-primary);
    border-color: var(--border-hover);
}

.resize-preset.active {
    border-color: var(--accent-1);
    color: var(--accent-1);
}

/* ==== Batch Mode ==== */
.batch-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}

.batch-header h3 {
    font-size: 16px;
    font-weight: 600;
}

.btn-batch-clear {
    background: none;
    border: none;
    color: var(--error);
    font-size: 13px;
    font-weight: 500;
    font-family: var(--font);
    cursor: pointer;
    transition: var(--transition);
}

.btn-batch-clear:hover {
    opacity: 0.7;
}

.batch-file-list {
    max-height: 200px;
    overflow-y: auto;
    margin-bottom: 20px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.batch-file-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 13px;
}

.batch-file-item .batch-file-name {
    flex: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-weight: 500;
}

.batch-file-item .batch-file-size {
    color: var(--text-muted);
    font-size: 12px;
    flex-shrink: 0;
}

.batch-file-item .batch-file-remove {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 2px;
    font-size: 16px;
    line-height: 1;
    transition: var(--transition);
}

.batch-file-item .batch-file-remove:hover {
    color: var(--error);
}

/* ==== Buttons ==== */
.btn-convert {
    width: 100%;
    padding: 14px 24px;
    background: var(--accent-gradient);
    border: none;
    border-radius: var(--radius-md);
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    font-family: var(--font);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.btn-convert:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0 8px 24px rgba(102,126,234,0.25);
}

.btn-convert:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.btn-convert:active:not(:disabled) {
    transform: translateY(0);
}

/* ==== Progress ==== */
.progress-container {
    text-align: center;
    padding: 48px 0;
}

.progress-spinner {
    margin: 0 auto 24px;
    width: 64px;
    height: 64px;
}

.progress-container h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
}

.progress-container p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.progress-bar-wrap {
    width: 100%;
    height: 4px;
    background: var(--bg-surface);
    border-radius: 2px;
    overflow: hidden;
    max-width: 300px;
    margin: 0 auto;
}

.progress-bar {
    height: 100%;
    width: 0%;
    background: var(--accent-gradient);
    border-radius: 2px;
    transition: width 0.3s ease;
}

/* ==== Success / Download ==== */
.success-container {
    text-align: center;
    padding: 32px 0;
}

.success-icon {
    margin-bottom: 20px;
}

.success-container h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--success);
}

.success-container > p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.size-comparison {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-bottom: 24px;
    font-size: 13px;
    color: var(--text-secondary);
}

.size-comparison .size-original,
.size-comparison .size-converted {
    padding: 6px 14px;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
}

.size-comparison .size-arrow {
    color: var(--accent-1);
}

.size-comparison .size-savings {
    color: var(--success);
    font-weight: 600;
}

.download-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-download {
    padding: 12px 28px;
    background: var(--success);
    border: none;
    border-radius: var(--radius-md);
    color: #0a0a0f;
    font-size: 15px;
    font-weight: 600;
    font-family: var(--font);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
}

.btn-download:hover {
    transform: translateY(-1px);
    box-shadow: 0 8px 20px rgba(0,212,170,0.25);
}

.btn-again {
    padding: 12px 24px;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 15px;
    font-weight: 500;
    font-family: var(--font);
    cursor: pointer;
    transition: var(--transition);
}

.btn-again:hover {
    border-color: var(--border-hover);
    color: var(--text-primary);
}

/* ==== Sections ==== */
.section-header {
    text-align: center;
    margin-bottom: 56px;
}

.section-header h2 {
    font-size: clamp(24px, 3.5vw, 40px);
    font-weight: 800;
    letter-spacing: -0.03em;
    margin-bottom: 12px;
}

.section-subtitle {
    font-size: 16px;
    color: var(--text-secondary);
    max-width: 460px;
    margin: 0 auto;
}

.section-tag {
    display: inline-block;
    padding: 4px 14px;
    background: rgba(102,126,234,0.08);
    border: 1px solid rgba(102,126,234,0.15);
    border-radius: 50px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--accent-1);
    margin-bottom: 16px;
}

/* ==== Reveal on Scroll ==== */
.reveal-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal-on-scroll.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* ==== Stats Bar ==== */
.stats-bar {
    padding: 60px 0;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
}

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: clamp(28px, 4vw, 42px);
    font-weight: 900;
    letter-spacing: -0.03em;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}

.stat-label {
    display: block;
    font-size: 13px;
    color: var(--text-secondary);
    margin-top: 4px;
    font-weight: 500;
}

@media (max-width: 768px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }
}

/* ==== Formats Section ==== */
.formats-section {
    padding: 100px 0;
}

.format-search-wrap {
    max-width: 420px;
    margin: -28px auto 36px;
    position: relative;
    display: flex;
    align-items: center;
}

.format-search-wrap svg {
    position: absolute;
    left: 14px;
    color: var(--text-muted);
    pointer-events: none;
}

.format-search {
    width: 100%;
    padding: 12px 16px 12px 40px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 14px;
    font-family: var(--font);
    outline: none;
    transition: var(--transition);
}

.format-search:focus {
    border-color: var(--accent-1);
    box-shadow: 0 0 0 3px rgba(102,126,234,0.1);
}

.format-search::placeholder {
    color: var(--text-muted);
}

.format-categories {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.format-category-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: var(--transition);
}

.format-category-card.hidden {
    display: none;
}

.format-category-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.2);
}

.category-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-sm);
    background: rgba(102,126,234,0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-1);
    margin-bottom: 20px;
}

.format-category-card h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 8px;
}

.format-category-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 16px;
}

.format-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.format-tags span {
    padding: 4px 10px;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

/* ==== How It Works ==== */
.how-it-works {
    padding: 100px 0;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.steps-grid {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
}

.step-card {
    flex: 1;
    max-width: 280px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px 28px;
    text-align: center;
    transition: var(--transition);
}

.step-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-2px);
}

.step-number {
    font-size: 36px;
    font-weight: 800;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 16px;
    line-height: 1;
}

.step-card h3 {
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 8px;
}

.step-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.step-connector {
    flex-shrink: 0;
}

@media (max-width: 768px) {
    .steps-grid {
        flex-direction: column;
    }
    .step-connector {
        transform: rotate(90deg);
    }
    .step-card {
        max-width: 100%;
        width: 100%;
    }
}

/* ==== Features ==== */
.features-section {
    padding: 100px 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 28px;
    transition: var(--transition);
}

.feature-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-2px);
}

.feature-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    background: rgba(102,126,234,0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-1);
    margin-bottom: 16px;
}

.feature-card h3 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 6px;
}

.feature-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ==== Demo Section ==== */
.demo-section {
    padding: 100px 0;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.demo-comparison {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
}

.demo-card {
    flex: 1;
    min-width: 280px;
    max-width: 380px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
}

.demo-card-result {
    border-color: rgba(102,126,234,0.2);
    box-shadow: 0 0 40px rgba(102,126,234,0.06);
}

.demo-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.demo-format {
    font-size: 14px;
    font-weight: 700;
    text-transform: uppercase;
    padding: 4px 10px;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: 6px;
    letter-spacing: 0.03em;
}

.demo-format.accent {
    background: rgba(102,126,234,0.1);
    border-color: rgba(102,126,234,0.2);
    color: var(--accent-1);
}

.demo-size {
    font-size: 13px;
    color: var(--text-muted);
}

.demo-visual {
    height: 8px;
    background: var(--bg-surface);
    border-radius: 4px;
    margin-bottom: 20px;
    overflow: hidden;
}

.demo-quality-bar {
    height: 100%;
    background: var(--accent-gradient);
    border-radius: 4px;
    transition: width 1s ease;
}

.demo-stats {
    display: flex;
    gap: 16px;
}

.demo-stat {
    flex: 1;
    text-align: center;
}

.demo-stat span {
    display: block;
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 4px;
}

.demo-stat strong {
    font-size: 14px;
    font-weight: 700;
}

.accent-text {
    color: var(--accent-1);
}

.demo-arrow {
    color: var(--text-muted);
    flex-shrink: 0;
}

@media (max-width: 768px) {
    .demo-arrow {
        transform: rotate(90deg);
    }
}

/* ==== Testimonials ==== */
.testimonials-section {
    padding: 100px 0;
}

.testimonials-track {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.testimonial-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 28px;
    transition: var(--transition);
}

.testimonial-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-2px);
}

.testimonial-stars {
    color: #f9ca24;
    font-size: 16px;
    margin-bottom: 14px;
    letter-spacing: 2px;
}

.testimonial-text {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 20px;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 12px;
}

.testimonial-avatar {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: var(--accent-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    font-weight: 700;
    color: #fff;
    flex-shrink: 0;
}

.testimonial-author div strong {
    display: block;
    font-size: 14px;
    font-weight: 600;
}

.testimonial-author div span {
    font-size: 12px;
    color: var(--text-muted);
}

/* ==== Pricing ==== */
.pricing-section {
    padding: 100px 0;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    align-items: start;
}

.pricing-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 36px;
    position: relative;
    transition: var(--transition);
}

.pricing-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.2);
}

.pricing-card-featured {
    border-color: rgba(102,126,234,0.3);
    box-shadow: 0 0 60px rgba(102,126,234,0.08);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    padding: 4px 16px;
    background: var(--accent-gradient);
    color: #fff;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    border-radius: 50px;
    white-space: nowrap;
}

.pricing-tier {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.pricing-price {
    font-size: 48px;
    font-weight: 900;
    letter-spacing: -0.04em;
    line-height: 1.1;
    margin-bottom: 8px;
}

.price-currency {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-secondary);
    vertical-align: super;
}

.price-period {
    font-size: 16px;
    font-weight: 500;
    color: var(--text-muted);
}

.pricing-desc {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 28px;
}

.pricing-features {
    list-style: none;
    margin-bottom: 28px;
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 0;
    font-size: 14px;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border);
}

.pricing-features li:last-child {
    border-bottom: none;
}

.btn-pricing {
    display: block;
    text-align: center;
    padding: 12px 24px;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 15px;
    font-weight: 600;
    font-family: var(--font);
    transition: var(--transition);
}

.btn-pricing:hover {
    border-color: var(--border-hover);
    color: var(--text-primary);
}

.btn-pricing-featured {
    background: var(--accent-gradient);
    border: none;
    color: #fff;
}

.btn-pricing-featured:hover {
    transform: translateY(-1px);
    box-shadow: 0 8px 24px rgba(102,126,234,0.25);
    color: #fff;
}

/* ==== Trust Section ==== */
.trust-section {
    padding: 80px 0;
}

.trust-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 24px;
}

.trust-item {
    text-align: center;
    padding: 28px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    transition: var(--transition);
}

.trust-item:hover {
    border-color: var(--border-hover);
    transform: translateY(-2px);
}

.trust-item svg {
    color: var(--accent-1);
    margin-bottom: 14px;
}

.trust-item h4 {
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 6px;
}

.trust-item p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ==== FAQ ==== */
.faq-section {
    padding: 100px 0;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
}

.faq-list {
    max-width: 700px;
    margin: 0 auto;
}

.faq-item {
    border-bottom: 1px solid var(--border);
}

.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 20px 0;
    background: none;
    border: none;
    font-size: 15px;
    font-weight: 600;
    font-family: var(--font);
    color: var(--text-primary);
    cursor: pointer;
    text-align: left;
    gap: 16px;
    transition: color var(--transition);
}

.faq-question:hover {
    color: var(--accent-1);
}

.faq-chevron {
    transition: transform var(--transition);
    flex-shrink: 0;
    color: var(--text-muted);
}

.faq-item.open .faq-chevron {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-item.open .faq-answer {
    max-height: 300px;
    padding-bottom: 20px;
}

.faq-answer p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ==== CTA ==== */
.cta-section {
    padding: 100px 0;
}

.cta-card {
    text-align: center;
    padding: 60px 40px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    position: relative;
    overflow: hidden;
}

.cta-glow {
    position: absolute;
    top: -100px;
    left: 50%;
    transform: translateX(-50%);
    width: 500px;
    height: 300px;
    background: radial-gradient(ellipse at center, rgba(102,126,234,0.1) 0%, transparent 70%);
    pointer-events: none;
}

.cta-card h2 {
    font-size: clamp(24px, 3vw, 36px);
    font-weight: 800;
    letter-spacing: -0.03em;
    margin-bottom: 12px;
    position: relative;
}

.cta-card p {
    font-size: 16px;
    color: var(--text-secondary);
    max-width: 500px;
    margin: 0 auto 28px;
    position: relative;
}

.cta-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
    position: relative;
    margin-bottom: 20px;
}

.btn-cta-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    background: var(--accent-gradient);
    color: #fff;
    border: none;
    border-radius: var(--radius-md);
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
}

.btn-cta-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(102,126,234,0.3);
}

.btn-cta-secondary {
    display: inline-flex;
    align-items: center;
    padding: 14px 28px;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    font-size: 15px;
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition);
}

.btn-cta-secondary:hover {
    border-color: var(--border-hover);
    color: var(--text-primary);
}

.cta-trust-line {
    font-size: 13px;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    position: relative;
}

.cta-trust-line svg {
    color: var(--success);
}

/* ==== Footer ==== */
.footer {
    padding: 60px 0 32px;
    border-top: 1px solid var(--border);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 700;
    font-size: 16px;
    margin-bottom: 12px;
}

.footer-desc {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 20px;
    max-width: 300px;
}

.footer-social {
    display: flex;
    gap: 12px;
}

.footer-social a {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    background: var(--bg-surface);
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
}

.footer-social a:hover {
    color: var(--text-primary);
    border-color: var(--border-hover);
    transform: translateY(-2px);
}

.footer-links-col h4 {
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.footer-links-col a {
    display: block;
    text-decoration: none;
    font-size: 13px;
    color: var(--text-secondary);
    padding: 4px 0;
    transition: color var(--transition);
}

.footer-links-col a:hover {
    color: var(--text-primary);
}

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 24px;
    border-top: 1px solid var(--border);
    font-size: 13px;
    color: var(--text-muted);
}

@media (max-width: 768px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }
    .footer-brand-col {
        grid-column: 1 / -1;
    }
    .footer-bottom {
        flex-direction: column;
        gap: 8px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .footer-grid {
        grid-template-columns: 1fr;
    }
}

/* ==== History Panel ==== */
.history-panel {
    position: fixed;
    right: -380px;
    top: 0;
    bottom: 0;
    width: 360px;
    background: var(--bg-card);
    border-left: 1px solid var(--border);
    z-index: 150;
    transition: right 0.3s ease;
    display: flex;
    flex-direction: column;
    box-shadow: -8px 0 30px rgba(0,0,0,0.3);
}

.history-panel.open {
    right: 0;
}

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

.history-header h3 {
    font-size: 16px;
    font-weight: 700;
}

.history-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.history-clear {
    background: none;
    border: none;
    color: var(--error);
    font-size: 13px;
    font-weight: 500;
    font-family: var(--font);
    cursor: pointer;
}

.history-close {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 4px;
    transition: var(--transition);
}

.history-close:hover {
    color: var(--text-primary);
}

.history-list {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
}

.history-empty {
    text-align: center;
    color: var(--text-muted);
    font-size: 14px;
    padding: 40px 0;
}

.history-entry {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    margin-bottom: 8px;
    transition: var(--transition);
}

.history-entry:hover {
    border-color: var(--border-hover);
}

.history-entry-icon {
    width: 36px;
    height: 36px;
    border-radius: 6px;
    background: rgba(102,126,234,0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    font-weight: 700;
    color: var(--accent-1);
    text-transform: uppercase;
    flex-shrink: 0;
}

.history-entry-info {
    flex: 1;
    min-width: 0;
}

.history-entry-info strong {
    display: block;
    font-size: 13px;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.history-entry-info span {
    font-size: 11px;
    color: var(--text-muted);
}

.history-toggle {
    position: fixed;
    bottom: 80px;
    right: 24px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 90;
    transition: var(--transition);
    box-shadow: 0 4px 16px rgba(0,0,0,0.2);
}

.history-toggle:hover {
    color: var(--text-primary);
    border-color: var(--border-hover);
    transform: translateY(-2px);
}

.history-badge {
    position: absolute;
    top: -4px;
    right: -4px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--accent-gradient);
    color: #fff;
    font-size: 10px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ==== Back to Top ==== */
.back-to-top {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 90;
    transition: var(--transition);
    opacity: 0;
    pointer-events: none;
    transform: translateY(10px);
    box-shadow: 0 4px 16px rgba(0,0,0,0.2);
}

.back-to-top.visible {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
}

.back-to-top:hover {
    color: var(--text-primary);
    border-color: var(--border-hover);
    transform: translateY(-2px);
}

/* ==== Toast ==== */
.toast-container {
    position: fixed;
    bottom: 24px;
    left: 24px;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.toast {
    padding: 14px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 14px;
    font-family: var(--font);
    box-shadow: 0 8px 32px rgba(0,0,0,0.4);
    animation: slideInToast 0.3s ease;
    max-width: 360px;
}

.toast.error {
    border-color: rgba(255,71,87,0.3);
    background: rgba(255,71,87,0.08);
}

[data-theme="light"] .toast.error {
    background: rgba(255,71,87,0.06);
}

.toast.success {
    border-color: rgba(0,212,170,0.3);
    background: rgba(0,212,170,0.08);
}

@keyframes slideInToast {
    from { opacity: 0; transform: translateX(-12px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes slideOutToast {
    from { opacity: 1; transform: translateX(0); }
    to { opacity: 0; transform: translateX(-12px); }
}

/* ==== Shortcut Overlay ==== */
.shortcut-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(8px);
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.2s ease;
}

.shortcut-overlay[hidden] {
    display: none;
}

.shortcut-modal {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 28px;
    width: 100%;
    max-width: 400px;
    box-shadow: 0 16px 48px rgba(0,0,0,0.4);
}

.shortcut-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.shortcut-modal-header h3 {
    font-size: 18px;
    font-weight: 700;
}

.shortcut-close {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 4px;
}

.shortcut-close:hover {
    color: var(--text-primary);
}

.shortcut-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.shortcut-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 14px;
    color: var(--text-secondary);
}

.shortcut-key-lg {
    display: inline-block;
    padding: 4px 10px;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
    font-family: 'SF Mono', 'Fira Code', monospace;
    color: var(--text-primary);
    min-width: 80px;
    text-align: center;
}

/* ==== Responsive ==== */
@media (max-width: 768px) {
    .hero {
        padding: 120px 0 60px;
    }
    .converter-card {
        padding: 24px;
    }
    .upload-zone {
        padding: 40px 20px;
    }
    .format-grid {
        grid-template-columns: repeat(auto-fill, minmax(64px, 1fr));
    }
    .formats-section,
    .how-it-works,
    .features-section,
    .demo-section,
    .testimonials-section,
    .pricing-section,
    .trust-section,
    .faq-section,
    .cta-section {
        padding: 64px 0;
    }
    .history-panel {
        width: 100%;
        right: -100%;
    }
}

@media (max-width: 480px) {
    .converter-card {
        padding: 20px;
        border-radius: var(--radius-lg);
    }
    .hero-text h1 {
        font-size: 28px;
    }
    .hero-subtitle {
        font-size: 15px;
    }
    .download-actions {
        flex-direction: column;
    }
    .btn-download, .btn-again {
        width: 100%;
        justify-content: center;
    }
    .upload-shortcuts {
        display: none;
    }
}

/* ==== Selection ==== */
::selection {
    background: rgba(102,126,234,0.3);
}

/* ==== Scrollbar ==== */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
    background: rgba(255,255,255,0.08);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: rgba(255,255,255,0.14);
}

[data-theme="light"] ::-webkit-scrollbar-thumb {
    background: rgba(0,0,0,0.1);
}
[data-theme="light"] ::-webkit-scrollbar-thumb:hover {
    background: rgba(0,0,0,0.18);
}

/* ==== About Me Section ==== */
.aboutme-section {
    padding: 80px 0;
}

.aboutme-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-card);
    max-width: 480px;
    margin: 0 auto;
    position: relative;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.aboutme-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.3), 0 0 0 1px var(--border-hover);
}

.aboutme-card-glow {
    position: absolute;
    top: -80px;
    left: 50%;
    transform: translateX(-50%);
    width: 300px;
    height: 200px;
    background: radial-gradient(ellipse, rgba(102,126,234,0.15) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
}

/* Banner */
.aboutme-top {
    position: relative;
}

.aboutme-banner {
    height: 100px;
    background: var(--accent-gradient);
    position: relative;
    overflow: hidden;
}

.aboutme-banner::after {
    content: '';
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(255,255,255,0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 30%, rgba(255,255,255,0.08) 0%, transparent 40%);
}

/* Avatar */
.aboutme-avatar-wrap {
    position: absolute;
    bottom: -44px;
    left: 28px;
    z-index: 2;
}

.aboutme-avatar-ring {
    width: 92px;
    height: 92px;
    border-radius: 50%;
    padding: 4px;
    background: var(--bg-card);
    display: flex;
    align-items: center;
    justify-content: center;
}

.aboutme-avatar {
    width: 84px;
    height: 84px;
    border-radius: 50%;
    object-fit: cover;
    background: var(--bg-surface);
}

.aboutme-status-dot {
    position: absolute;
    bottom: 4px;
    right: 4px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    border: 4px solid var(--bg-card);
    background: #747f8d;
    z-index: 3;
    transition: background 0.3s ease;
}

.aboutme-status-dot.online {
    background: #23a55a;
    box-shadow: 0 0 8px rgba(35,165,90,0.5);
}

.aboutme-status-dot.idle {
    background: #f0b232;
    box-shadow: 0 0 8px rgba(240,178,50,0.4);
}

.aboutme-status-dot.dnd {
    background: #f23f43;
    box-shadow: 0 0 8px rgba(242,63,67,0.4);
}

.aboutme-status-dot.offline {
    background: #80848e;
}

/* Body */
.aboutme-body {
    padding: 52px 28px 28px;
}

.aboutme-identity {
    display: flex;
    align-items: baseline;
    gap: 8px;
    flex-wrap: wrap;
}

.aboutme-name {
    font-size: 22px;
    font-weight: 800;
    letter-spacing: -0.3px;
}

.aboutme-username {
    font-size: 13px;
    color: var(--text-muted);
    font-family: 'SF Mono', 'Fira Code', monospace;
}

.aboutme-status-line {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 8px;
    flex-wrap: wrap;
}

.aboutme-status-badge {
    font-size: 11px;
    font-weight: 700;
    padding: 3px 10px;
    border-radius: 20px;
    background: rgba(128,132,142,0.12);
    color: #80848e;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: background 0.3s ease, color 0.3s ease;
}

.aboutme-status-badge.online {
    background: rgba(35,165,90,0.12);
    color: #23a55a;
}

.aboutme-status-badge.idle {
    background: rgba(240,178,50,0.12);
    color: #f0b232;
}

.aboutme-status-badge.dnd {
    background: rgba(242,63,67,0.12);
    color: #f23f43;
}

.aboutme-activity {
    font-size: 13px;
    color: var(--text-secondary);
    font-style: italic;
}

.aboutme-divider {
    height: 1px;
    background: var(--border);
    margin: 16px 0;
}

.aboutme-bio {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.75;
}

.aboutme-tech-tags {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    margin-top: 14px;
}

.aboutme-tech-tags span {
    font-size: 11px;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 20px;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    letter-spacing: 0.3px;
}

.aboutme-links {
    display: flex;
    gap: 10px;
    margin-top: 18px;
}

.aboutme-link-btn {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 9px 18px;
    font-size: 13px;
    font-weight: 600;
    border-radius: var(--radius-sm);
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
}

.aboutme-discord {
    background: #5865f2;
    color: #fff;
    border: none;
}

.aboutme-discord:hover {
    background: #4752c4;
    color: #fff;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(88,101,242,0.4);
}

.aboutme-try {
    background: var(--bg-surface);
    color: var(--text-secondary);
    border: 1px solid var(--border);
}

.aboutme-try:hover {
    color: var(--text-primary);
    background: var(--bg-card-hover);
    border-color: var(--border-hover);
}

@media (max-width: 480px) {
    .aboutme-avatar-wrap {
        left: 50%;
        transform: translateX(-50%);
    }
    .aboutme-body {
        text-align: center;
        padding-top: 56px;
    }
    .aboutme-identity {
        justify-content: center;
    }
    .aboutme-status-line {
        justify-content: center;
    }
    .aboutme-tech-tags {
        justify-content: center;
    }
    .aboutme-links {
        justify-content: center;
    }
}

/* ============================================
   BOLD FEATURES — Premium Innovation Layer
   ============================================ */

/* ==== Cursor Glow ==== */
.cursor-glow {
    position: fixed;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(102,126,234,0.06) 0%, transparent 70%);
    pointer-events: none;
    z-index: 1;
    transform: translate(-50%, -50%);
    transition: opacity 0.3s ease;
    opacity: 0;
    will-change: transform;
}

.cursor-glow.active {
    opacity: 1;
}

[data-theme="light"] .cursor-glow {
    background: radial-gradient(circle, rgba(102,126,234,0.04) 0%, transparent 70%);
}

/* ==== Hero Particles Canvas ==== */
.hero-particles {
    position: absolute;
    inset: 0;
    z-index: 1;
    pointer-events: none;
    opacity: 0.6;
}

/* ==== Typewriter ==== */
.typewriter-line {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 15px;
    color: var(--text-muted);
    margin-top: 12px;
    margin-bottom: 4px;
    font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
    letter-spacing: -0.3px;
}

.typewriter-prefix {
    color: var(--accent-1);
    font-weight: 600;
}

.typewriter-text {
    color: var(--text-secondary);
    min-width: 180px;
}

.typewriter-cursor {
    color: var(--accent-1);
    animation: blink-cursor 1s step-end infinite;
    font-weight: 300;
}

@keyframes blink-cursor {
    50% { opacity: 0; }
}

/* ==== Color Palette Extractor ==== */
.color-palette-wrap {
    margin-top: 12px;
    padding: 12px 14px;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
}

.color-palette-wrap h4 {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
    margin-bottom: 10px;
    font-weight: 600;
}

.color-swatches {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.color-swatch {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    border: 2px solid var(--border);
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    position: relative;
}

.color-swatch:hover {
    transform: scale(1.15);
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
    z-index: 2;
}

.color-swatch .swatch-tooltip {
    position: absolute;
    bottom: calc(100% + 6px);
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 4px 8px;
    font-size: 11px;
    font-family: 'SF Mono', monospace;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
    color: var(--text-primary);
}

.color-swatch:hover .swatch-tooltip {
    opacity: 1;
}

/* ==== Sound Toggle ==== */
.sound-toggle {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 8px;
    border-radius: 8px;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.sound-toggle:hover {
    color: var(--text-primary);
    background: var(--bg-surface);
}

.sound-toggle .icon-sound-off {
    display: none;
}

.sound-toggle.muted .icon-sound-on {
    display: none;
}

.sound-toggle.muted .icon-sound-off {
    display: block;
}

/* ==== Command Palette ==== */
.cmd-palette-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    z-index: 300;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding-top: min(20vh, 200px);
    animation: fadeIn 0.15s ease;
}

.cmd-palette-overlay[hidden] {
    display: none;
}

.cmd-palette {
    background: var(--bg-card);
    border: 1px solid var(--border-hover);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 560px;
    box-shadow: 0 24px 80px rgba(0,0,0,0.5), 0 0 0 1px rgba(255,255,255,0.05);
    overflow: hidden;
    animation: cmdSlideIn 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes cmdSlideIn {
    from { opacity: 0; transform: translateY(-12px) scale(0.98); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

.cmd-search-wrap {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
}

.cmd-search-wrap svg {
    flex-shrink: 0;
    color: var(--text-muted);
}

.cmd-search-wrap input {
    flex: 1;
    background: none;
    border: none;
    outline: none;
    font-size: 16px;
    font-family: var(--font);
    color: var(--text-primary);
}

.cmd-search-wrap input::placeholder {
    color: var(--text-muted);
}

.cmd-search-wrap kbd {
    font-size: 11px;
    padding: 2px 8px;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--text-muted);
    font-family: inherit;
}

.cmd-results {
    max-height: 320px;
    overflow-y: auto;
    padding: 8px;
}

.cmd-result-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background 0.1s ease;
    font-size: 14px;
    color: var(--text-secondary);
}

.cmd-result-item:hover,
.cmd-result-item.active {
    background: var(--bg-surface);
    color: var(--text-primary);
}

.cmd-result-item .cmd-icon {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-surface);
    border-radius: var(--radius-sm);
    flex-shrink: 0;
    font-size: 16px;
}

.cmd-result-item .cmd-label {
    flex: 1;
}

.cmd-result-item .cmd-label strong {
    display: block;
    color: var(--text-primary);
    font-weight: 500;
}

.cmd-result-item .cmd-label span {
    font-size: 12px;
    color: var(--text-muted);
}

.cmd-result-item .cmd-shortcut {
    font-size: 11px;
    padding: 2px 6px;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--text-muted);
    font-family: 'SF Mono', monospace;
}

.cmd-result-group {
    padding: 8px 12px 4px;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
    font-weight: 600;
}

.cmd-footer {
    display: flex;
    gap: 16px;
    padding: 10px 20px;
    border-top: 1px solid var(--border);
    font-size: 12px;
    color: var(--text-muted);
}

.cmd-footer kbd {
    font-size: 10px;
    padding: 1px 5px;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: 3px;
    font-family: inherit;
    margin-right: 4px;
}

/* ==== 3D Tilt Effect ==== */
.feature-card,
.step-card,
.format-category-card,
.trust-item {
    transform-style: preserve-3d;
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.feature-card.tilt-active,
.step-card.tilt-active,
.format-category-card.tilt-active,
.trust-item.tilt-active {
    box-shadow: 0 20px 40px rgba(0,0,0,0.2), 0 0 0 1px var(--border-hover);
}

/* ==== Confetti Canvas ==== */
.confetti-canvas {
    position: fixed;
    inset: 0;
    z-index: 250;
    pointer-events: none;
}

/* ==== Matrix Rain Easter Egg ==== */
.matrix-rain {
    position: fixed;
    inset: 0;
    z-index: 500;
    pointer-events: none;
    opacity: 0;
    transition: opacity 1s ease;
}

.matrix-rain.active {
    opacity: 1;
    pointer-events: auto;
}

/* ==== Magnetic Button Effect ==== */
.btn-hero-primary,
.btn-cta-primary,
.btn-convert,
.btn-download {
    transition: transform 0.2s cubic-bezier(0.25, 0.46, 0.45, 0.94), box-shadow 0.3s ease, background 0.3s ease;
}

/* ==== Nav Command Hint ==== */
.nav-cmd-hint {
    display: none;
    align-items: center;
    gap: 4px;
    font-size: 12px;
    color: var(--text-muted);
    padding: 4px 10px;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: 6px;
    cursor: pointer;
    transition: var(--transition);
    margin-right: 4px;
}

.nav-cmd-hint:hover {
    background: var(--bg-card-hover);
    color: var(--text-primary);
}

.nav-cmd-hint kbd {
    font-size: 11px;
    font-family: inherit;
}

@media (min-width: 769px) {
    .nav-cmd-hint {
        display: flex;
    }
}