/* ===== CSS Custom Properties (Design Tokens) ===== */
:root {
    /* Colors */
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-card: #16161f;
    --bg-card-hover: #1c1c28;
    --bg-input: #1a1a26;
    --bg-input-focus: #1e1e2d;

    --text-primary: #f0f0f5;
    --text-secondary: #8e8ea0;
    --text-muted: #5a5a6e;

    --accent-primary: #e60023;
    --accent-secondary: #ff4757;
    --accent-glow: rgba(230, 0, 35, 0.3);

    --gradient-1: linear-gradient(135deg, #e60023 0%, #ff6b81 50%, #ff4757 100%);
    --gradient-2: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-3: linear-gradient(135deg, #f093fb 0%, #f5576c 50%, #e60023 100%);
    --gradient-bg: radial-gradient(ellipse at 20% 50%, rgba(230, 0, 35, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(102, 126, 234, 0.06) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 80%, rgba(118, 75, 162, 0.05) 0%, transparent 50%);

    --border-color: rgba(255, 255, 255, 0.06);
    --border-hover: rgba(255, 255, 255, 0.12);

    /* Spacing */
    --container-max: 1200px;
    --container-padding: 24px;

    /* Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 30px var(--accent-glow);

    /* Transitions */
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
    --duration-fast: 150ms;
    --duration-normal: 300ms;
    --duration-slow: 500ms;
}

/* ===== Reset & Base ===== */
*,
*::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: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background-color: var(--bg-primary);
    background-image: var(--gradient-bg);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

/* ===== Background Animated Shapes ===== */
.bg-shapes {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
    animation: float 20s ease-in-out infinite;
}

.shape-1 {
    width: 400px;
    height: 400px;
    background: rgba(230, 0, 35, 0.12);
    top: -100px;
    left: -100px;
    animation-delay: 0s;
}

.shape-2 {
    width: 300px;
    height: 300px;
    background: rgba(102, 126, 234, 0.1);
    top: 30%;
    right: -80px;
    animation-delay: -5s;
    animation-duration: 25s;
}

.shape-3 {
    width: 250px;
    height: 250px;
    background: rgba(118, 75, 162, 0.1);
    bottom: 20%;
    left: 10%;
    animation-delay: -10s;
    animation-duration: 22s;
}

.shape-4 {
    width: 350px;
    height: 350px;
    background: rgba(255, 71, 87, 0.08);
    bottom: -100px;
    right: 20%;
    animation-delay: -7s;
    animation-duration: 28s;
}

.shape-5 {
    width: 200px;
    height: 200px;
    background: rgba(240, 147, 251, 0.08);
    top: 50%;
    left: 40%;
    animation-delay: -3s;
    animation-duration: 18s;
}

@keyframes float {
    0%,
    100% {
        transform: translate(0, 0) scale(1);
    }
    25% {
        transform: translate(30px, -40px) scale(1.05);
    }
    50% {
        transform: translate(-20px, 20px) scale(0.95);
    }
    75% {
        transform: translate(15px, 35px) scale(1.02);
    }
}

/* ===== Container ===== */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
    position: relative;
    z-index: 1;
}

/* ===== Header ===== */
.header {
    position: sticky;
    top: 0;
    z-index: 100;
    padding: 16px 0;
    background: rgba(10, 10, 15, 0.7);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid var(--border-color);
}

.header .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);
}

.logo-icon {
    width: 32px;
    height: 32px;
    color: var(--accent-primary);
    transition: transform var(--duration-normal) var(--ease-spring);
}

.logo:hover .logo-icon {
    transform: rotate(-15deg) scale(1.1);
}

.logo-text {
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.logo-gradient {
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-link {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    text-decoration: none;
    padding: 8px 14px;
    border-radius: var(--radius-full);
    transition: all var(--duration-fast);
}

.nav-link:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.nav-badge {
    font-size: 0.75rem;
    font-weight: 600;
    padding: 6px 14px;
    border-radius: var(--radius-full);
    background: rgba(230, 0, 35, 0.1);
    color: var(--accent-secondary);
    border: 1px solid rgba(230, 0, 35, 0.2);
    letter-spacing: 0.3px;
    margin-left: 8px;
}

/* ===== Mobile Menu Button ===== */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 110;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all var(--duration-normal) var(--ease-out);
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ===== Mobile Nav Overlay ===== */
.mobile-nav-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 10, 15, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 99;
    display: none;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--duration-normal) var(--ease-out);
}

.mobile-nav-overlay.active {
    display: flex;
    opacity: 1;
}

.mobile-nav {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.mobile-nav-link {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    text-decoration: none;
    padding: 12px 32px;
    border-radius: var(--radius-lg);
    transition: all var(--duration-fast);
}

.mobile-nav-link:hover {
    background: rgba(230, 0, 35, 0.1);
    color: var(--accent-secondary);
}

/* ===== Hero Section ===== */
.hero {
    padding: 80px 0 40px;
    text-align: center;
}

.hero-content {
    max-width: 720px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
    font-weight: 500;
    padding: 8px 18px;
    border-radius: var(--radius-full);
    background: rgba(230, 0, 35, 0.08);
    color: var(--accent-secondary);
    border: 1px solid rgba(230, 0, 35, 0.15);
    margin-bottom: 24px;
    animation: fadeInDown 0.6s var(--ease-out);
}

.hero-title {
    font-size: clamp(2.2rem, 5vw, 3.5rem);
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -1.5px;
    margin-bottom: 16px;
    animation: fadeInDown 0.6s var(--ease-out) 0.1s both;
}

.gradient-text {
    background: var(--gradient-3);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 40px;
    animation: fadeInDown 0.6s var(--ease-out) 0.2s both;
}

/* ===== Trust Badges ===== */
.trust-badges {
    display: flex;
    justify-content: center;
    gap: 24px;
    margin-top: 28px;
    flex-wrap: wrap;
    animation: fadeInUp 0.6s var(--ease-out) 0.5s both;
}

.trust-badge {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 500;
}

.trust-badge svg {
    width: 16px;
    height: 16px;
    color: var(--accent-secondary);
    opacity: 0.7;
}

/* ===== Input Section ===== */
.input-section {
    display: flex;
    gap: 12px;
    max-width: 640px;
    margin: 0 auto;
    animation: fadeInUp 0.6s var(--ease-out) 0.3s both;
}

.input-wrapper {
    flex: 1;
    position: relative;
    display: flex;
    align-items: center;
}

.input-icon {
    position: absolute;
    left: 16px;
    width: 20px;
    height: 20px;
    color: var(--text-muted);
    pointer-events: none;
    transition: color var(--duration-normal);
}

.url-input {
    width: 100%;
    padding: 16px 52px 16px 48px;
    font-family: inherit;
    font-size: 0.95rem;
    color: var(--text-primary);
    background: var(--bg-input);
    border: 1.5px solid var(--border-color);
    border-radius: var(--radius-lg);
    outline: none;
    transition: all var(--duration-normal) var(--ease-out);
}

.url-input::placeholder {
    color: var(--text-muted);
}

.url-input:focus {
    background: var(--bg-input-focus);
    border-color: rgba(230, 0, 35, 0.4);
    box-shadow: 0 0 0 4px rgba(230, 0, 35, 0.08);
}

.url-input:focus~.input-icon,
.input-wrapper:focus-within .input-icon {
    color: var(--accent-primary);
}

.paste-btn {
    position: absolute;
    right: 8px;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    cursor: pointer;
    transition: all var(--duration-fast);
}

.paste-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    border-color: var(--border-hover);
}

.paste-btn svg {
    width: 16px;
    height: 16px;
}

/* ===== Download Button ===== */
.download-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 16px 28px;
    font-family: inherit;
    font-size: 0.95rem;
    font-weight: 600;
    color: white;
    background: var(--gradient-1);
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    white-space: nowrap;
    position: relative;
    overflow: hidden;
    transition: all var(--duration-normal) var(--ease-out);
}

.download-btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.15) 0%, transparent 50%);
    opacity: 0;
    transition: opacity var(--duration-normal);
}

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

.download-btn:hover::before {
    opacity: 1;
}

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

.download-btn.loading {
    pointer-events: none;
    opacity: 0.85;
}

.download-btn .btn-loader {
    display: none;
}

.download-btn.loading .btn-text,
.download-btn.loading .btn-icon {
    display: none;
}

.download-btn.loading .btn-loader {
    display: inline-flex;
}

.btn-icon {
    width: 18px;
    height: 18px;
}

.spinner {
    width: 20px;
    height: 20px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* ===== Error Message ===== */
.error-message {
    display: none;
    align-items: center;
    gap: 8px;
    max-width: 640px;
    margin: 16px auto 0;
    padding: 12px 18px;
    font-size: 0.9rem;
    color: #ff6b6b;
    background: rgba(255, 107, 107, 0.08);
    border: 1px solid rgba(255, 107, 107, 0.2);
    border-radius: var(--radius-md);
    animation: shake 0.4s var(--ease-out);
}

.error-message.visible {
    display: flex;
}

.error-message svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    20% { transform: translateX(-8px); }
    40% { transform: translateX(8px); }
    60% { transform: translateX(-4px); }
    80% { transform: translateX(4px); }
}

/* ===== Results Section ===== */
.results-section {
    display: none;
    padding: 40px 0 60px;
    animation: fadeInUp 0.5s var(--ease-out);
}

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

.results-header {
    text-align: center;
    margin-bottom: 32px;
}

.results-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 6px;
}

.results-subtitle {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* ===== Media Grid ===== */
.media-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
}

.media-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--duration-normal) var(--ease-out);
    animation: fadeInUp 0.5s var(--ease-out) both;
}

.media-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-hover);
    box-shadow: var(--shadow-lg);
}

.media-preview {
    position: relative;
    width: 100%;
    aspect-ratio: 4 / 5;
    overflow: hidden;
    background: var(--bg-secondary);
}

.media-preview img,
.media-preview video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--duration-slow) var(--ease-out);
}

.media-card:hover .media-preview img,
.media-card:hover .media-preview video {
    transform: scale(1.03);
}

.media-type-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 6px 12px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-radius: var(--radius-full);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.media-type-badge.image {
    background: rgba(102, 126, 234, 0.8);
    color: white;
}

.media-type-badge.video {
    background: rgba(230, 0, 35, 0.8);
    color: white;
}

.media-type-badge svg {
    width: 14px;
    height: 14px;
}

.media-actions {
    padding: 16px;
    display: flex;
    gap: 10px;
}

.media-download-btn {
    flex: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 16px;
    font-family: inherit;
    font-size: 0.85rem;
    font-weight: 600;
    color: white;
    background: var(--gradient-1);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--duration-normal) var(--ease-out);
    text-decoration: none;
}

.media-download-btn:hover {
    box-shadow: var(--shadow-glow);
    transform: translateY(-1px);
}

.media-download-btn svg {
    width: 16px;
    height: 16px;
}

.media-open-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--duration-fast);
    text-decoration: none;
}

.media-open-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    border-color: var(--border-hover);
}

.media-open-btn svg {
    width: 18px;
    height: 18px;
}

/* ===== Section Common ===== */
.section-title {
    font-size: 2rem;
    font-weight: 700;
    text-align: center;
    letter-spacing: -0.5px;
    margin-bottom: 12px;
}

.section-subtitle {
    text-align: center;
    color: var(--text-secondary);
    font-size: 1rem;
    margin-bottom: 48px;
}

/* ===== Features Section ===== */
.features {
    padding: 80px 0;
}

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

.feature-card {
    padding: 32px 24px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    text-align: center;
    transition: all var(--duration-normal) var(--ease-out);
}

.feature-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-hover);
    transform: translateY(-4px);
}

.feature-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    border-radius: var(--radius-lg);
    transition: transform var(--duration-normal) var(--ease-spring);
}

.feature-card:hover .feature-icon {
    transform: scale(1.1);
}

.feature-icon svg {
    width: 26px;
    height: 26px;
}

.feature-icon-1 {
    background: rgba(255, 183, 77, 0.12);
    color: #ffb74d;
}

.feature-icon-2 {
    background: rgba(76, 175, 80, 0.12);
    color: #66bb6a;
}

.feature-icon-3 {
    background: rgba(102, 126, 234, 0.12);
    color: #667eea;
}

.feature-icon-4 {
    background: rgba(230, 0, 35, 0.12);
    color: var(--accent-secondary);
}

.feature-card h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 10px;
}

.feature-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ===== How To Section ===== */
.how-to {
    padding: 60px 0 80px;
}

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

.step-card {
    flex: 1;
    min-width: 200px;
    max-width: 280px;
    padding: 32px 24px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    text-align: center;
    transition: all var(--duration-normal) var(--ease-out);
}

.step-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-hover);
    transform: translateY(-4px);
}

.step-number {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    font-size: 1.2rem;
    font-weight: 700;
    color: white;
    background: var(--gradient-1);
    border-radius: var(--radius-md);
}

.step-card h3 {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.step-card p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.step-connector {
    color: var(--text-muted);
    flex-shrink: 0;
}

.step-connector svg {
    width: 24px;
    height: 24px;
}

/* ===== Get Extension Section ===== */
.extension-section {
    padding: 80px 0;
}

.extension-card {
    display: flex;
    align-items: center;
    gap: 60px;
    padding: 48px;
    background: rgba(22, 22, 31, 0.6);
    border: 1px solid var(--border-color);
    border-radius: 28px;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    position: relative;
    overflow: hidden;
}

.extension-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(230, 0, 35, 0.4), rgba(102, 126, 234, 0.3), transparent);
}

.extension-content {
    flex: 1;
}

.extension-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
    font-weight: 500;
    padding: 8px 18px;
    border-radius: var(--radius-full);
    background: rgba(102, 126, 234, 0.1);
    color: #667eea;
    border: 1px solid rgba(102, 126, 234, 0.2);
    margin-bottom: 20px;
}

.extension-title {
    font-size: clamp(1.5rem, 3vw, 2.2rem);
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: -1px;
    margin-bottom: 16px;
}

.extension-subtitle {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 32px;
    max-width: 480px;
}

.extension-browsers {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.browser-btn {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    cursor: default;
    transition: all var(--duration-normal) var(--ease-out);
    min-width: 160px;
}

.browser-btn:hover {
    border-color: var(--border-hover);
    background: var(--bg-card-hover);
    transform: translateY(-2px);
}

.browser-btn svg {
    width: 28px;
    height: 28px;
    color: var(--text-secondary);
    flex-shrink: 0;
}

.browser-btn-text {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.browser-name {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
}

.browser-status {
    font-size: 0.72rem;
    font-weight: 500;
    color: var(--accent-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    animation: pulse-subtle 2s ease-in-out infinite;
}

@keyframes pulse-subtle {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* Extension Visual / Mockup */
.extension-visual {
    flex-shrink: 0;
}

.ext-mockup {
    width: 260px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.ext-mockup-header {
    display: flex;
    gap: 6px;
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.03);
    border-bottom: 1px solid var(--border-color);
}

.ext-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--text-muted);
    opacity: 0.4;
}

.ext-dot:first-child {
    background: #ff5f57;
    opacity: 0.7;
}

.ext-dot:nth-child(2) {
    background: #ffbd2e;
    opacity: 0.7;
}

.ext-dot:nth-child(3) {
    background: #28c840;
    opacity: 0.7;
}

.ext-mockup-body {
    padding: 24px;
    text-align: center;
}

.ext-icon-large {
    width: 48px;
    height: 48px;
    margin: 0 auto 12px;
    color: var(--accent-primary);
}

.ext-icon-large svg {
    width: 100%;
    height: 100%;
}

.ext-mockup-text {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 16px;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.ext-mockup-line {
    height: 8px;
    background: rgba(255, 255, 255, 0.06);
    border-radius: 4px;
    margin-bottom: 10px;
}

.ext-mockup-line.short {
    width: 65%;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 20px;
}

.ext-mockup-btn-preview {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 24px;
    background: var(--gradient-1);
    color: white;
    border-radius: var(--radius-md);
    font-size: 0.82rem;
    font-weight: 600;
}

.ext-mockup-btn-preview svg {
    width: 14px;
    height: 14px;
}

/* ===== FAQ Section ===== */
.faq-section {
    padding: 80px 0;
}

.faq-list {
    max-width: 720px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.faq-item {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--duration-normal) var(--ease-out);
}

.faq-item:hover {
    border-color: var(--border-hover);
}

.faq-item.active {
    border-color: rgba(230, 0, 35, 0.2);
    background: var(--bg-card-hover);
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 20px 24px;
    font-family: inherit;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    background: none;
    border: none;
    cursor: pointer;
    text-align: left;
    transition: color var(--duration-fast);
    min-height: 44px;
}

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

.faq-chevron {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    color: var(--text-muted);
    transition: transform var(--duration-normal) var(--ease-out);
}

.faq-item.active .faq-chevron {
    transform: rotate(180deg);
    color: var(--accent-secondary);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--duration-normal) var(--ease-out),
                padding var(--duration-normal) var(--ease-out);
}

.faq-item.active .faq-answer {
    max-height: 300px;
}

.faq-answer p {
    padding: 0 24px 20px;
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ===== Scroll to Top Button ===== */
.scroll-top-btn {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    cursor: pointer;
    z-index: 90;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--duration-normal) var(--ease-out);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.scroll-top-btn.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.scroll-top-btn:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-hover);
    color: var(--text-primary);
    transform: translateY(-2px);
}

.scroll-top-btn svg {
    width: 20px;
    height: 20px;
}

/* ===== Footer ===== */
.footer {
    padding: 48px 0 32px;
    border-top: 1px solid var(--border-color);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 40px;
}

.footer-brand .logo {
    margin-bottom: 12px;
}

.footer-tagline {
    font-size: 0.85rem;
    color: var(--text-muted);
    max-width: 280px;
    line-height: 1.6;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-links h4 {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.footer-links a {
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-decoration: none;
    transition: color var(--duration-fast);
}

.footer-links a:hover {
    color: var(--accent-secondary);
}

.footer-bottom {
    text-align: center;
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
}

.footer-text {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.footer-disclaimer {
    font-size: 0.78rem;
    color: var(--text-muted);
}

.footer-credit {
    color: var(--accent-secondary);
    text-decoration: none;
    font-weight: 600;
    transition: all var(--duration-fast);
}

.footer-credit:hover {
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

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

/* ===== Animations ===== */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== Responsive: Tablet ===== */
@media (max-width: 1024px) {
    .extension-card {
        flex-direction: column;
        text-align: center;
        gap: 40px;
        padding: 40px 32px;
    }

    .extension-subtitle {
        max-width: 100%;
    }

    .extension-browsers {
        justify-content: center;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }

    .footer-brand {
        grid-column: 1 / -1;
    }
}

/* ===== Responsive: Mobile ===== */
@media (max-width: 768px) {
    :root {
        --container-padding: 20px;
    }

    .nav {
        display: none;
    }

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

    .hero {
        padding: 48px 0 24px;
    }

    .hero-subtitle {
        font-size: 1rem;
        margin-bottom: 32px;
    }

    .input-section {
        flex-direction: column;
    }

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

    .trust-badges {
        gap: 16px;
    }

    .section-title {
        font-size: 1.6rem;
    }

    .section-subtitle {
        font-size: 0.9rem;
        margin-bottom: 32px;
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .feature-card {
        padding: 24px 16px;
    }

    .steps-grid {
        flex-direction: column;
    }

    .step-card {
        max-width: 100%;
    }

    .step-connector {
        transform: rotate(90deg);
    }

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

    .extension-card {
        padding: 32px 24px;
    }

    .extension-visual {
        display: none;
    }

    .faq-question {
        padding: 16px 20px;
        font-size: 0.9rem;
    }

    .faq-answer p {
        padding: 0 20px 16px;
        font-size: 0.85rem;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .footer-brand {
        text-align: center;
    }

    .footer-tagline {
        max-width: 100%;
    }

    .footer-links {
        align-items: center;
    }

    .scroll-top-btn {
        bottom: 20px;
        right: 20px;
        width: 44px;
        height: 44px;
    }
}

/* ===== Responsive: Small Mobile ===== */
@media (max-width: 480px) {
    .features-grid {
        grid-template-columns: 1fr;
    }

    .hero-title {
        font-size: 1.8rem;
        letter-spacing: -0.5px;
    }

    .url-input {
        padding: 14px 48px 14px 44px;
        font-size: 0.9rem;
    }

    .download-btn {
        padding: 14px 24px;
    }

    .trust-badges {
        flex-direction: column;
        align-items: center;
        gap: 10px;
    }

    .extension-browsers {
        flex-direction: column;
        align-items: center;
    }

    .browser-btn {
        width: 100%;
        max-width: 220px;
    }

    .extension-title {
        font-size: 1.3rem;
    }
}

/* ===== Responsive: Very Small ===== */
@media (max-width: 360px) {
    :root {
        --container-padding: 16px;
    }

    .hero-title {
        font-size: 1.5rem;
    }

    .hero-badge {
        font-size: 0.75rem;
        padding: 6px 14px;
    }
}