/* Reset and base styles */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: #1a1a1a;
    color: #f3f3f3;
    line-height: 1.6;
    overflow-x: hidden;
}

/* Color variables matching extension */
:root {
    --primary-blue: #1597ff;
    --primary-blue-hover: #0c7ce8;
    --dark-bg: #1a1a1a;
    --darker-bg: #111;
    --card-bg: rgba(255, 255, 255, 0.05);
    --border-color: rgba(255, 255, 255, 0.1);
    --text-primary: #f3f3f3;
    --text-secondary: #ccc;
    --text-muted: #999;
    --shadow-primary: rgba(21, 151, 255, 0.3);
    --gradient-primary: linear-gradient(145deg, #1597ff, #0c7ce8);
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(26, 26, 26, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    padding: 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    padding: 15px 20px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-primary);
}

.logo-icon {
    font-size: 1.5rem;
    filter: hue-rotate(200deg);
}

.nav-links {
    display: flex;
    gap: 30px;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

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

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-blue);
    transition: width 0.3s ease;
}

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

/* Hero Section */
.hero {
    padding: 110px 20px 80px;
    background: linear-gradient(135deg, #1a1a1a 0%, #0f1419 100%);
    position: relative;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 20% 80%, rgba(21, 151, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(21, 151, 255, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 20px;
}

.highlight {
    color: var(--primary-blue);
}

.hero-description {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

/* Extension Preview */
.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.extension-preview {
    position: relative;
    transform: perspective(1000px) rotateY(-10deg) rotateX(5deg);
    transition: transform 0.3s ease;
}

.extension-preview:hover {
    transform: perspective(1000px) rotateY(-5deg) rotateX(2deg);
}

.extension-window {
    width: 350px;
    background: #333;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    box-shadow:
        0 20px 40px rgba(0, 0, 0, 0.3),
        0 0 20px rgba(21, 151, 255, 0.1);
    overflow: hidden;
}

.extension-header {
    padding: 15px 20px;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
}

.extension-header h3 {
    font-size: 1.2rem;
    margin: 0;
}

.extension-content {
    padding: 20px;
}

.audio-indicator-demo {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 12px;
    border: 1px solid var(--border-color);
    margin-bottom: 15px;
}

.indicator-header-demo {
    text-align: center;
    margin-bottom: 10px;
}

.indicator-title-demo {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--primary-blue);
}

.tab-item-demo {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 10px;
    margin: 4px 0;
    background: rgba(21, 151, 255, 0.1);
    border-radius: 8px;
    border: 1px solid rgba(21, 151, 255, 0.2);
}

.tab-item-demo.current {
    background: rgba(21, 151, 255, 0.2);
    border-color: var(--primary-blue);
}

.tab-info-demo {
    flex: 1;
}

.tab-title-demo {
    font-size: 0.8rem;
    font-weight: 500;
    margin-bottom: 2px;
}

.tab-url-demo {
    font-size: 0.7rem;
    color: var(--text-muted);
}

.audio-icon-demo {
    font-size: 1rem;
    animation: pulse 1.5s ease-in-out infinite alternate;
}

.volume-control-demo {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 15px;
    border: 1px solid var(--border-color);
    text-align: center;
}

.volume-control-demo label {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--primary-blue);
    margin-bottom: 5px;
}

.volume-percentage {
    font-size: 0.9rem;
    color: var(--primary-blue);
    margin-bottom: 10px;
}

.range-demo {
    height: 15px;
    background: #444;
    border-radius: 50px;
    margin: 10px 0;
    position: relative;
    overflow: hidden;
}

.range-fill {
    height: 100%;
    width: 75%;
    background: var(--gradient-primary);
    border-radius: 50px;
}

.mute-btn-demo {
    background: var(--gradient-primary);
    color: white;
    border: none;
    border-radius: 25px;
    padding: 10px 20px;
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 0 auto;
    font-weight: 600;
    font-size: 0.9rem;
    box-shadow: 0 2px 8px var(--shadow-primary);
}

@keyframes pulse {
    from { opacity: 0.6; }
    to { opacity: 1; }
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    font-weight: 600;
    border-radius: 25px;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-family: inherit;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    padding: 15px 30px;
    box-shadow: 0 4px 15px var(--shadow-primary);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--shadow-primary);
}

.btn-secondary {
    background: transparent;
    color: var(--primary-blue);
    border: 2px solid var(--primary-blue);
    padding: 13px 28px;
}

.btn-secondary:hover {
    background: var(--primary-blue);
    color: white;
    transform: translateY(-2px);
}

.btn-large {
    padding: 20px 40px;
    font-size: 1.1rem;
}

.btn-icon {
    font-size: 1.2rem;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Section headers */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 20px;
}

.section-header p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* Features Section */
.features {
    padding: 100px 0;
    background: var(--darker-bg);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.feature-card {
    background: var(--card-bg);
    border-radius: 20px;
    padding: 30px;
    border: 1px solid var(--border-color);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    text-align: center;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 20px;
    display: block;
}

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--primary-blue);
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 20px;
}

.shortcuts-preview {
    margin-top: 20px;
}

.shortcut-item-preview {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 8px 0;
    padding: 8px 12px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 8px;
    font-size: 0.85rem;
}

.key {
    font-family: 'Courier New', monospace;
    padding: 4px 8px;
    background: rgba(21, 151, 255, 0.2);
    border: 1px solid rgba(21, 151, 255, 0.3);
    border-radius: 4px;
    color: var(--primary-blue);
    font-weight: 600;
    font-size: 0.8rem;
}

/* How it works */
.how-it-works {
    padding: 100px 0;
}

.steps-container {
    display: flex;
    justify-content: space-between;
    gap: 40px;
    margin-top: 60px;
}

.step {
    flex: 1;
    text-align: center;
    position: relative;
}

.step::after {
    content: '→';
    position: absolute;
    right: -20px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 2rem;
    color: var(--primary-blue);
}

.step:last-child::after {
    display: none;
}

.step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    color: white;
    border-radius: 50%;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 20px;
}

.step h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--primary-blue);
}

.step p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Install Section */
.install {
    padding: 100px 0;
    background: var(--darker-bg);
    text-align: center;
}

.install-content h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.install-content p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 50px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.install-options {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 30px;
}

.install-info {
    display: flex;
    gap: 30px;
    flex-wrap: wrap;
    justify-content: center;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.info-icon {
    color: #4ade80;
    font-weight: bold;
}

/* Footer */
.footer {
    padding: 60px 0 30px;
    background: #0a0a0a;
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3 {
    color: var(--primary-blue);
    margin-bottom: 20px;
    font-size: 1.2rem;
}

.footer-section h4 {
    color: var(--text-primary);
    margin-bottom: 15px;
    font-size: 1rem;
}

.footer-section p {
    color: var(--text-secondary);
    line-height: 1.6;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin: 8px 0;
}

.footer-section ul li a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: var(--primary-blue);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid var(--border-color);
    color: var(--text-muted);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-container {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }

    .nav-links {
        gap: 20px;
    }

    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-buttons {
        justify-content: center;
    }

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

    .steps-container {
        flex-direction: column;
        gap: 40px;
    }

    .step::after {
        content: '↓';
        right: 50%;
        transform: translateX(50%);
        top: auto;
        bottom: -30px;
    }

    .install-info {
        flex-direction: column;
        gap: 15px;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .extension-window {
        width: 300px;
    }

    .extension-preview {
        transform: none;
    }
}