:root {
    --bg-primary: #0a0a0b;
    --bg-secondary: #111113;
    --bg-tertiary: #18181b;
    --bg-hover: #1f1f23;

    --border-primary: #27272a;
    --border-subtle: #1f1f23;

    --text-primary: #fafafa;
    --text-secondary: #a1a1aa;
    --text-muted: #71717a;

    --accent: #22d3ee;
    --accent-hover: #06b6d4;

    --container-width: 1200px;
    --section-padding: 100px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

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

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 28px;
    border-radius: 12px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    border: none;
    text-decoration: none;
}

.btn-primary {
    background: var(--accent);
    color: #0a0a0b;
    box-shadow: 0 4px 20px rgba(34, 211, 238, 0.25);
}

.btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 30px rgba(34, 211, 238, 0.35);
}

.btn-large {
    padding: 18px 36px;
    font-size: 16px;
}

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

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 10, 11, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-subtle);
}

.nav-container {
    max-width: 100%;
    margin: 0;
    padding: 0 32px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

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

.nav-logo {
    width: 36px;
    height: 36px;
    border-radius: 10px;
}

.nav-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
}

.nav-cta {
    padding: 10px 20px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-primary);
    border-radius: 10px;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    transition: all 0.2s ease;
}

.nav-cta:hover {
    background: var(--accent);
    border-color: var(--accent);
    color: #0a0a0b;
}

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 24px 80px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse 80% 50% at 50% -20%, rgba(34, 211, 238, 0.08), transparent);
    pointer-events: none;
}

.hero-content {
    flex: 1;
    max-width: 600px;
    z-index: 1;
}

.hero-title {
    font-size: clamp(48px, 8vw, 72px);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 32px;
    max-width: 500px;
}

.hero-actions {
    margin-bottom: 48px;
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: 24px;
}

.stat {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.stat-value {
    font-size: 14px;
    font-weight: 700;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-label {
    font-size: 12px;
    color: var(--text-muted);
}

.stat-divider {
    width: 1px;
    height: 32px;
    background: var(--border-primary);
}

.hero-visual {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1;
}

.hero-image-wrapper {
    position: relative;
    max-width: 700px;
}

.hero-image {
    border-radius: 16px;
    border: 1px solid var(--border-primary);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.hero-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120%;
    height: 120%;
    background: radial-gradient(circle, rgba(34, 211, 238, 0.1) 0%, transparent 70%);
    pointer-events: none;
    z-index: -1;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: clamp(32px, 5vw, 44px);
    font-weight: 700;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.section-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.features {
    padding: var(--section-padding) 0;
    background: var(--bg-secondary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}

.feature-card {
    padding: 32px;
    background: var(--bg-primary);
    border: 1px solid var(--border-subtle);
    border-radius: 16px;
    transition: all 0.3s ease;
}

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

.feature-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(34, 211, 238, 0.1);
    border-radius: 12px;
    margin-bottom: 20px;
}

.feature-icon svg {
    width: 24px;
    height: 24px;
    stroke: var(--accent);
}

.feature-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 12px;
}

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

.efficiency {
    padding: var(--section-padding) 0;
}

.efficiency-content {
    display: flex;
    align-items: center;
    gap: 60px;
}

.efficiency-image-wrapper {
    flex: 1.2;
    display: flex;
    justify-content: center;
}

.efficiency-image {
    max-width: 100%;
    border-radius: 16px;
    border: 1px solid var(--border-primary);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

.efficiency-text {
    flex: 1;
}

.efficiency-title {
    font-size: clamp(28px, 4vw, 40px);
    font-weight: 700;
    margin-bottom: 20px;
    letter-spacing: -0.02em;
}

.efficiency-desc {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 24px;
}

.efficiency-list {
    list-style: none;
}

.efficiency-list li {
    position: relative;
    padding-left: 24px;
    margin-bottom: 12px;
    font-size: 15px;
    color: var(--text-secondary);
}

.efficiency-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    width: 8px;
    height: 8px;
    background: var(--accent);
    border-radius: 50%;
}

.showcase {
    padding: var(--section-padding) 0;
    background: var(--bg-secondary);
}

.showcase-content {
    display: flex;
    align-items: center;
    gap: 60px;
}

.showcase-text {
    flex: 1;
}

.showcase-title {
    font-size: clamp(28px, 4vw, 40px);
    font-weight: 700;
    margin-bottom: 20px;
    letter-spacing: -0.02em;
}

.showcase-desc {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 24px;
}

.showcase-list {
    list-style: none;
}

.showcase-list li {
    position: relative;
    padding-left: 24px;
    margin-bottom: 12px;
    font-size: 15px;
    color: var(--text-secondary);
}

.showcase-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    width: 8px;
    height: 8px;
    background: var(--accent);
    border-radius: 50%;
}

.showcase-image-wrapper {
    flex: 1;
    display: flex;
    justify-content: center;
}

.showcase-image {
    max-width: 320px;
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
    filter: brightness(1.15);
}

.video-section {
    padding: var(--section-padding) 0;
    background: var(--bg-secondary);
}

.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 24px;
}

.video-wrapper {
    position: relative;
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--border-primary);
    background: var(--bg-primary);
}

.video-wrapper video {
    width: 100%;
    height: auto;
    display: block;
}

.cta {
    padding: var(--section-padding) 0;
}

.cta-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.cta-logo {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    border-radius: 20px;
}

.cta-title {
    font-size: clamp(28px, 4vw, 40px);
    font-weight: 700;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

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

.footer {
    padding: 60px 0;
    border-top: 1px solid var(--border-subtle);
}

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

.footer-brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 24px;
}

.footer-logo {
    width: 32px;
    height: 32px;
    border-radius: 8px;
}

.footer-name {
    font-size: 16px;
    font-weight: 600;
}

.footer-disclaimer {
    font-size: 11px;
    color: var(--text-muted);
    max-width: 700px;
    margin: 0 auto 16px;
    line-height: 1.6;
}

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

@media (max-width: 1024px) {
    .hero {
        flex-direction: column;
        text-align: center;
        padding-top: 100px;
    }

    .hero-content {
        max-width: 100%;
        margin-bottom: 48px;
    }

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

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

    .efficiency-content {
        flex-direction: column;
        text-align: center;
    }

    .efficiency-list {
        display: inline-block;
        text-align: left;
    }

    .showcase-content {
        flex-direction: column;
        text-align: center;
    }

    .showcase-list {
        display: inline-block;
        text-align: left;
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 60px;
    }

    .hero-title {
        font-size: 40px;
    }

    .hero-stats {
        flex-wrap: wrap;
        gap: 16px;
    }

    .stat-divider {
        display: none;
    }

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

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

@media (max-width: 480px) {
    .nav-container {
        padding: 0 16px;
    }

    .nav-title {
        display: none;
    }

    .btn {
        padding: 12px 20px;
        font-size: 14px;
    }

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