:root {
    --surface: #131313;
    --surface-dim: #131313;
    --surface-bright: #393939;
    --surface-container-lowest: #0e0e0e;
    --surface-container-low: #1c1b1b;
    --surface-container: #201f1f;
    --surface-container-high: #2a2a2a;
    --surface-container-highest: #353534;

    --primary: #a4e6ff;
    --primary-container: #00d1ff;
    --on-primary: #003543;
    --on-primary-container: #00566a;

    --secondary: #bdc2ff;
    --secondary-container: #343d96;

    --tertiary: #7cecff;
    --tertiary-container: #00d3eb;

    --on-surface: #e5e2e1;
    --on-surface-variant: #bbc9cf;
    --outline: #859399;
    --outline-variant: #3c494e;

    --error: #ffb4ab;

    --font-display: 'Space Grotesk', sans-serif;
    --font-body: 'Manrope', sans-serif;
    --font-label: 'Inter', sans-serif;

    --radius-sm: 0.125rem;
    --radius-md: 0.375rem;
    --radius-lg: 0.5rem;
    --radius-xl: 0.75rem;
    --radius-full: 9999px;
}

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

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

body {
    font-family: var(--font-body);
    background: var(--surface);
    color: var(--on-surface);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    color: inherit;
    text-decoration: none;
}

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(19, 19, 19, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1.25rem;
    color: var(--on-surface);
}

img.logo-icon {
    width: 36px;
    height: 36px;
    border-radius: 50%;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2.5rem;
}

.nav-links a {
    font-family: var(--font-label);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--on-surface-variant);
    transition: color 0.2s ease;
}

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

.nav-github {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--surface-container-high);
    border-radius: var(--radius-full);
    transition: background 0.2s ease;
}

.nav-github:hover {
    background: var(--surface-bright);
}

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

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--on-surface);
    border-radius: 2px;
    transition: all 0.3s ease;
}

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

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

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

main {
    padding-top: 80px;
}

.hero {
    position: relative;
    min-height: calc(100vh - 80px);
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 4rem;
    max-width: 1280px;
    margin: 0 auto;
    padding: 4rem 2rem;
    overflow: hidden;
}

.hero-glow {
    position: absolute;
    top: 10%;
    left: 20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(0, 209, 255, 0.12) 0%, transparent 70%);
    pointer-events: none;
    animation: pulse 8s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 0.5; transform: scale(1); }
    50% { opacity: 0.8; transform: scale(1.1); }
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--surface-container-high);
    border-radius: var(--radius-full);
    font-family: var(--font-label);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--tertiary);
    margin-bottom: 1.5rem;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--tertiary);
    border-radius: 50%;
    animation: blink 2s ease-in-out infinite;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: 1.5rem;
}

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

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--on-surface-variant);
    max-width: 480px;
    margin-bottom: 2rem;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 3rem;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 1.5rem;
    background: linear-gradient(135deg, var(--primary), var(--primary-container));
    color: var(--on-primary);
    font-family: var(--font-label);
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    transition: all 0.3s ease;
    box-shadow: 0 8px 32px rgba(0, 209, 255, 0.25);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(0, 209, 255, 0.35);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 1.5rem;
    background: var(--surface-container-high);
    color: var(--on-surface);
    font-family: var(--font-label);
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    transition: all 0.2s ease;
}

.btn-secondary:hover {
    background: var(--surface-bright);
}

.btn-large {
    padding: 1.25rem 2rem;
    font-size: 1rem;
}

.hero-stats {
    display: flex;
    gap: 3rem;
}

.stat {
    display: flex;
    flex-direction: column;
}

.stat-value {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
}

.stat-label {
    font-family: var(--font-label);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--on-surface-variant);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.hero-visual {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.demo-container {
    position: relative;
    padding: 1.5rem;
    background: var(--surface-container-low);
    border-radius: var(--radius-xl);
    box-shadow: 0 0 60px rgba(0, 209, 255, 0.15);
}

.demo-gif {
    width: 100%;
    max-width: 500px;
    border-radius: var(--radius-lg);
    display: block;
}

.demo-label {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-top: 1.5rem;
    font-family: var(--font-label);
    font-size: 0.875rem;
    color: var(--on-surface-variant);
}

.hotkey-badge {
    padding: 0.375rem 0.75rem;
    background: var(--surface-container-high);
    border-radius: var(--radius-md);
    font-family: var(--font-display);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--primary);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-tag {
    display: inline-block;
    font-family: var(--font-label);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--tertiary);
    margin-bottom: 1rem;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    letter-spacing: -0.02em;
}

.features {
    padding: 6rem 2rem;
    max-width: 1280px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.feature-card {
    padding: 2rem;
    background: var(--surface-container-low);
    border-radius: var(--radius-xl);
    transition: all 0.3s ease;
    opacity: 0;
    transform: translateY(20px);
}

.feature-card.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.feature-card:hover {
    background: var(--surface-container);
    transform: translateY(-4px);
}

.feature-large {
    grid-column: span 2;
}

.feature-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--surface-container-high);
    border-radius: var(--radius-lg);
    color: var(--primary);
    margin-bottom: 1.5rem;
}

.feature-card h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.feature-card p {
    font-size: 0.9375rem;
    color: var(--on-surface-variant);
    line-height: 1.6;
}

.privacy {
    padding: 6rem 2rem;
    max-width: 1280px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.privacy-description {
    font-size: 1.125rem;
    color: var(--on-surface-variant);
    margin-bottom: 2.5rem;
    max-width: 500px;
}

.privacy-features {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.privacy-item {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
    opacity: 0;
    transform: translateX(-20px);
    transition: all 0.4s ease;
}

.privacy-item.animate-in {
    opacity: 1;
    transform: translateX(0);
}

.privacy-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--surface-container-high);
    border-radius: var(--radius-md);
    color: var(--tertiary);
    flex-shrink: 0;
}

.privacy-item h4 {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.privacy-item p {
    font-size: 0.875rem;
    color: var(--on-surface-variant);
}

.privacy-visual {
    display: flex;
    align-items: center;
    justify-content: center;
}

.vault-graphic {
    position: relative;
    width: 300px;
    height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.vault-ring {
    position: absolute;
    border-radius: 50%;
    border: 1px solid var(--outline-variant);
    opacity: 0.3;
    animation: rotate 20s linear infinite;
}

.vault-ring:nth-child(1) {
    width: 100%;
    height: 100%;
    animation-direction: reverse;
}

.vault-ring:nth-child(2) {
    width: 75%;
    height: 75%;
    animation-duration: 15s;
}

.vault-ring:nth-child(3) {
    width: 50%;
    height: 50%;
    animation-duration: 10s;
    animation-direction: reverse;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.vault-center {
    width: 100px;
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--surface-container-high), var(--surface-container-lowest));
    border-radius: 50%;
    color: var(--primary);
    box-shadow: 0 0 60px rgba(0, 209, 255, 0.2);
}

.compare {
    padding: 6rem 2rem;
    max-width: 900px;
    margin: 0 auto;
}

.compare-table {
    background: var(--surface-container-low);
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.compare-header {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    padding: 1.5rem 2rem;
    background: var(--surface-container);
    font-family: var(--font-label);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.compare-ours {
    color: var(--primary);
}

.compare-theirs {
    color: var(--on-surface-variant);
}

.compare-row {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    padding: 1.25rem 2rem;
    font-size: 0.9375rem;
    opacity: 0;
    transform: translateY(10px);
    transition: all 0.3s ease;
}

.compare-row.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.compare-row:not(:last-child) {
    border-bottom: 1px solid rgba(60, 73, 78, 0.2);
}

.compare-feature {
    font-weight: 500;
}

.compare-col {
    text-align: center;
}

.compare-good {
    color: var(--tertiary);
    font-weight: 600;
}

.cta {
    position: relative;
    padding: 8rem 2rem;
    text-align: center;
    overflow: hidden;
}

.cta-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 800px;
    height: 400px;
    background: radial-gradient(ellipse, rgba(0, 209, 255, 0.15) 0%, transparent 70%);
    pointer-events: none;
}

.cta-content {
    position: relative;
    z-index: 1;
}

.cta h2 {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    margin-bottom: 1rem;
}

.cta p {
    font-size: 1.125rem;
    color: var(--on-surface-variant);
    margin-bottom: 2rem;
}

.cta-actions {
    margin-bottom: 1.5rem;
}

.cta-requirements {
    font-family: var(--font-label);
    font-size: 0.75rem;
    color: var(--outline);
}

.footer {
    background: var(--surface-container-lowest);
    padding: 4rem 2rem 2rem;
}

.footer-content {
    max-width: 1280px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 4rem;
    margin-bottom: 4rem;
}

.footer-brand p {
    margin-top: 1rem;
    font-size: 0.875rem;
    color: var(--on-surface-variant);
}

.footer-col h4 {
    font-family: var(--font-label);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--on-surface-variant);
    margin-bottom: 1rem;
}

.footer-col a {
    display: block;
    font-size: 0.875rem;
    color: var(--on-surface-variant);
    margin-bottom: 0.75rem;
    transition: color 0.2s ease;
}

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

.footer-bottom {
    max-width: 1280px;
    margin: 0 auto;
    padding-top: 2rem;
    border-top: 1px solid rgba(60, 73, 78, 0.2);
    text-align: center;
}

.footer-bottom p {
    font-family: var(--font-label);
    font-size: 0.75rem;
    color: var(--outline);
}

@media (max-width: 1024px) {
    .hero {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 3rem;
    }

    .hero-content {
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }

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

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

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

    .feature-large {
        grid-column: span 2;
    }

    .privacy {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .privacy-content {
        text-align: center;
    }

    .privacy-description {
        margin-left: auto;
        margin-right: auto;
    }

    .privacy-features {
        max-width: 400px;
        margin: 0 auto;
    }

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

    .footer-brand {
        grid-column: span 2;
        text-align: center;
    }

    .footer-brand .nav-logo {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        flex-direction: column;
        padding: 2rem;
        background: rgba(19, 19, 19, 0.98);
        backdrop-filter: blur(20px);
        gap: 1.5rem;
        transform: translateY(-100%);
        opacity: 0;
        pointer-events: none;
        transition: all 0.3s ease;
    }

    .nav-links.active {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }

    .nav-toggle {
        display: flex;
    }

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

    .feature-large {
        grid-column: span 1;
    }

    .compare-table {
        font-size: 0.875rem;
    }

    .compare-header,
    .compare-row {
        padding: 1rem 1.25rem;
        grid-template-columns: 1.2fr 1fr 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }

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

    .footer-links {
        display: flex;
        justify-content: center;
        gap: 3rem;
    }
}

@media (max-width: 480px) {
    .hero-stats {
        gap: 2rem;
    }

    .stat-value {
        font-size: 1.5rem;
    }

    .demo-container {
        padding: 1rem;
    }

    .demo-gif {
        max-width: 100%;
    }

    .compare-header,
    .compare-row {
        padding: 1rem;
        font-size: 0.8125rem;
    }

    .btn-primary,
    .btn-secondary {
        padding: 0.875rem 1.25rem;
        font-size: 0.8125rem;
    }

    .footer-links {
        flex-direction: column;
        gap: 2rem;
    }
}