/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --bg-primary: #0f0f1a;
    --bg-secondary: #1a1a2e;
    --bg-card: #16213e;
    --text-primary: #ffffff;
    --text-secondary: #8892b0;
    --accent-start: #667eea;
    --accent-end: #764ba2;
    --border-color: #2d2d44;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(15, 15, 26, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 16px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 600;
    font-size: 18px;
}

.nav-logo img {
    border-radius: 8px;
}

.nav-links {
    display: flex;
    gap: 32px;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: color 0.2s;
}

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

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 80px;
    padding: 120px 24px 80px;
    max-width: 1400px;
    margin: 0 auto;
}

.hero-content {
    flex: 1;
    max-width: 560px;
}

.hero h1 {
    font-size: clamp(40px, 5vw, 64px);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 24px;
}

.gradient-text {
    background: linear-gradient(135deg, var(--accent-start), var(--accent-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 32px;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    margin-bottom: 24px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-start), var(--accent-end));
    color: white;
    box-shadow: 0 4px 20px rgba(102, 126, 234, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 30px rgba(102, 126, 234, 0.4);
}

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

.btn-secondary:hover {
    background: var(--bg-card);
    border-color: var(--accent-start);
}

.btn-large {
    padding: 18px 36px;
    font-size: 18px;
}

.hero-meta {
    font-size: 14px;
    color: var(--text-secondary);
}

.hero-image {
    flex: 1;
    max-width: 640px;
}

.hero-screenshot {
    width: 100%;
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

/* Section Titles */
.section-title {
    font-size: clamp(32px, 4vw, 48px);
    font-weight: 700;
    text-align: center;
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: 60px;
}

/* Features Section */
.features {
    padding: 120px 24px;
    background: var(--bg-secondary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 32px;
    transition: transform 0.2s, border-color 0.2s;
}

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

.feature-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--accent-start), var(--accent-end));
    border-radius: 12px;
    margin-bottom: 20px;
}

.feature-icon svg {
    stroke: white;
}

.feature-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.6;
}

/* Screenshots Section */
.screenshots {
    padding: 120px 24px;
}

.screenshots-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.screenshot-card {
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: transform 0.2s, box-shadow 0.2s;
}

.screenshot-card:hover {
    transform: scale(1.02);
    box-shadow: 0 10px 40px rgba(102, 126, 234, 0.2);
}

.screenshot-card img {
    width: 100%;
    display: block;
}

/* Shortcuts Section */
.shortcuts {
    padding: 120px 24px;
    background: var(--bg-secondary);
}

.shortcuts-grid {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
    margin-bottom: 24px;
}

.shortcut-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    padding: 32px 40px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
}

.shortcut-card span {
    color: var(--text-secondary);
    font-size: 14px;
}

kbd {
    display: inline-block;
    padding: 8px 14px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-family: 'Inter', monospace;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
}

.shortcuts-note {
    text-align: center;
    color: var(--text-secondary);
    font-size: 14px;
}

/* Install Section */
.install {
    padding: 120px 24px;
    text-align: center;
}

.install-steps {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin-bottom: 48px;
}

.install-step {
    max-width: 240px;
}

.step-number {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--accent-start), var(--accent-end));
    border-radius: 50%;
    font-size: 20px;
    font-weight: 700;
    margin: 0 auto 16px;
}

.install-step h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 8px;
}

.install-step p {
    color: var(--text-secondary);
    font-size: 15px;
}

/* Privacy Section */
.privacy {
    padding: 80px 24px;
    background: var(--bg-secondary);
}

.privacy-grid {
    display: flex;
    justify-content: center;
    gap: 60px;
    flex-wrap: wrap;
}

.privacy-item {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-secondary);
    font-size: 16px;
}

.privacy-item svg {
    stroke: var(--accent-start);
}

/* Footer */
.footer {
    padding: 60px 24px 32px;
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 32px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 600;
    font-size: 18px;
}

.footer-logo img {
    border-radius: 8px;
}

.footer-links {
    display: flex;
    gap: 32px;
}

.footer-links a {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.2s;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 32px;
    border-top: 1px solid var(--border-color);
}

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

/* Responsive */
@media (max-width: 968px) {
    .hero {
        flex-direction: column;
        text-align: center;
        gap: 60px;
        padding-top: 100px;
    }

    .hero-content {
        max-width: 100%;
    }

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

    .hero-image {
        max-width: 100%;
    }

    .nav-links {
        display: none;
    }

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

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

    .shortcuts-grid {
        flex-direction: column;
        align-items: center;
    }

    .footer-content {
        flex-direction: column;
        gap: 24px;
    }
}

@media (max-width: 480px) {
    .hero-buttons {
        flex-direction: column;
    }

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

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

    .privacy-grid {
        flex-direction: column;
        align-items: center;
        gap: 24px;
    }
}