/* ===== Variables ===== */
:root {
    --bg: #09090b;
    --bg-elevated: #18181b;
    --bg-subtle: #27272a;
    --border: rgba(255,255,255,0.08);
    --border-strong: rgba(255,255,255,0.12);
    --text: #fafafa;
    --text-secondary: #a1a1aa;
    --text-muted: #71717a;
    --accent: #3b82f6;
    --accent-hover: #60a5fa;
    --green: #22c55e;
    --yellow: #eab308;
    --red: #ef4444;
    --radius: 8px;
    --radius-lg: 12px;
    --max-width: 1200px;
}

/* ===== Reset ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    font-size: 16px;
}
a { color: inherit; text-decoration: none; }
img, video { max-width: 100%; display: block; }

/* ===== Typography ===== */
h1 { font-size: clamp(2.5rem, 5vw, 3.5rem); font-weight: 600; line-height: 1.1; letter-spacing: -0.02em; }
h2 { font-size: clamp(1.75rem, 3vw, 2.5rem); font-weight: 600; line-height: 1.2; letter-spacing: -0.02em; }
h3 { font-size: 1.125rem; font-weight: 600; line-height: 1.4; }
p { color: var(--text-secondary); }

/* ===== Buttons ===== */
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    background: var(--text);
    color: var(--bg);
    font-weight: 500;
    font-size: 14px;
    border-radius: var(--radius);
    transition: all 0.15s ease;
}
.btn-primary:hover {
    background: var(--text-secondary);
    transform: translateY(-1px);
}
.btn-ghost {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    background: transparent;
    color: var(--text);
    font-weight: 500;
    font-size: 14px;
    border-radius: var(--radius);
    border: 1px solid var(--border-strong);
    transition: all 0.15s ease;
}
.btn-ghost:hover {
    background: var(--bg-elevated);
    border-color: var(--border-strong);
}
.btn-lg {
    padding: 14px 28px;
    font-size: 15px;
}

/* ===== Navigation ===== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 16px 24px;
    background: rgba(9, 9, 11, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
}
.nav-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    font-size: 15px;
}
.nav-logo svg { color: var(--text); }
.nav-menu {
    display: flex;
    gap: 32px;
}
.nav-menu a {
    font-size: 14px;
    color: var(--text-secondary);
    transition: color 0.15s;
}
.nav-menu a:hover { color: var(--text); }
.nav-actions .btn-primary {
    padding: 8px 16px;
    font-size: 13px;
}

/* ===== Hero ===== */
.hero {
    padding: 160px 24px 80px;
    text-align: center;
}
.hero-content {
    max-width: 720px;
    margin: 0 auto;
}
.hero h1 {
    margin-bottom: 24px;
}
.hero-lead {
    font-size: 1.125rem;
    line-height: 1.7;
    margin-bottom: 40px;
    color: var(--text-secondary);
}
.hero-cta {
    display: flex;
    gap: 12px;
    justify-content: center;
    margin-bottom: 24px;
}
.hero-platforms {
    font-size: 13px;
    color: var(--text-muted);
}

/* Hero Media */
.hero-media {
    max-width: 1000px;
    margin: 64px auto 0;
}
.video-container {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    aspect-ratio: 16 / 9;
}
.video-container video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.video-placeholder {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 16px;
    color: var(--text-muted);
    background: var(--bg-elevated);
}
.video-placeholder svg { opacity: 0.5; }
.video-placeholder span { font-size: 14px; }
.video-container video:not([src=""]) + .video-placeholder { display: none; }

/* ===== Logos ===== */
.logos {
    padding: 64px 24px;
    text-align: center;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}
.logos p {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 24px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.logos-grid {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 48px;
    flex-wrap: wrap;
}
.logos-grid span {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-muted);
    opacity: 0.6;
}

/* ===== Section Intro ===== */
.section-intro {
    max-width: 640px;
    margin: 0 auto 64px;
    text-align: center;
}
.section-intro h2 { margin-bottom: 16px; }
.section-intro p { font-size: 1.0625rem; }

/* ===== Features ===== */
.features {
    padding: 120px 24px;
    max-width: var(--max-width);
    margin: 0 auto;
}
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 48px 32px;
}
.feature {
    text-align: left;
}
.feature-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 20px;
}
.feature-icon svg {
    width: 20px;
    height: 20px;
    color: var(--text);
}
.feature h3 {
    margin-bottom: 8px;
    color: var(--text);
}
.feature p {
    font-size: 14px;
    line-height: 1.6;
}

/* ===== Video Section ===== */
.video-section {
    padding: 0 24px 120px;
}
.video-wrapper {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    aspect-ratio: 16 / 9;
}
.video-wrapper video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.video-placeholder.large {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 20px;
    color: var(--text-muted);
    background: var(--bg-elevated);
    cursor: pointer;
    transition: background 0.2s;
}
.video-placeholder.large:hover {
    background: var(--bg-subtle);
}
.video-placeholder.large svg { opacity: 0.4; }
.video-placeholder.large span { font-size: 15px; }
.video-wrapper video[src]:not([src=""]) + .video-placeholder.large { display: none; }

/* ===== Use Cases ===== */
.usecases {
    padding: 120px 24px;
    background: var(--bg-elevated);
}
.usecases-grid {
    max-width: var(--max-width);
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}
.usecase {
    padding: 32px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
}
.usecase h3 {
    margin-bottom: 12px;
    color: var(--text);
}
.usecase p {
    font-size: 14px;
    line-height: 1.6;
}

/* ===== Comparison ===== */
.comparison {
    padding: 120px 24px;
    max-width: 900px;
    margin: 0 auto;
}
.comparison-table {
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}
.comparison-row {
    display: grid;
    grid-template-columns: 1.5fr repeat(3, 1fr);
    border-bottom: 1px solid var(--border);
}
.comparison-row:last-child { border-bottom: none; }
.comparison-row.header {
    background: var(--bg-elevated);
    font-weight: 500;
    font-size: 14px;
}
.comparison-cell {
    padding: 16px 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
}
.comparison-cell.label {
    justify-content: flex-start;
    color: var(--text-secondary);
}
.comparison-cell.highlight {
    background: rgba(59, 130, 246, 0.08);
}
.comparison-row.header .comparison-cell.highlight {
    background: var(--accent);
    color: white;
}

/* Check/Cross icons */
.yes, .no, .partial {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}
.yes {
    background: rgba(34, 197, 94, 0.15);
    color: var(--green);
}
.yes::after {
    content: '';
    width: 10px;
    height: 5px;
    border-left: 2px solid currentColor;
    border-bottom: 2px solid currentColor;
    transform: rotate(-45deg) translateY(-1px);
}
.no {
    background: rgba(239, 68, 68, 0.15);
    color: var(--red);
    position: relative;
}
.no::before, .no::after {
    content: '';
    position: absolute;
    width: 10px;
    height: 2px;
    background: currentColor;
}
.no::before { transform: rotate(45deg); }
.no::after { transform: rotate(-45deg); }
.partial {
    background: rgba(234, 179, 8, 0.15);
    color: var(--yellow);
}
.partial::after {
    content: '';
    width: 8px;
    height: 2px;
    background: currentColor;
}

/* ===== CTA ===== */
.cta {
    padding: 120px 24px;
    text-align: center;
    background: linear-gradient(180deg, var(--bg) 0%, var(--bg-elevated) 100%);
}
.cta h2 {
    margin-bottom: 16px;
}
.cta > p {
    font-size: 1.0625rem;
    margin-bottom: 32px;
}
.cta-buttons {
    margin-bottom: 32px;
}
.cta-platforms {
    display: flex;
    justify-content: center;
    gap: 32px;
}
.platform {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--text-muted);
}

/* ===== Footer ===== */
.footer {
    padding: 64px 24px 32px;
    border-top: 1px solid var(--border);
}
.footer-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 64px;
    margin-bottom: 48px;
}
.footer-brand p {
    margin-top: 12px;
    font-size: 14px;
    color: var(--text-muted);
}
.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}
.footer-col {
    display: flex;
    align-items: center;
    gap: 24px;
    flex-wrap: nowrap;
}

.footer-col h4 {
    font-size: 13px;
    font-weight: 500;
    color: var(--text);
    margin: 0;
}

.footer-col a {
    display: inline-block;
    font-size: 14px;
    color: var(--text-muted);
    padding: 0;
    white-space: nowrap;
    transition: color 0.15s;
}

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

.footer-bottom {
    max-width: var(--max-width);
    margin: 0 auto;
    padding-top: 32px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.footer-bottom p {
    font-size: 13px;
    color: var(--text-muted);
}
.social {
    display: flex;
    gap: 16px;
}
.social a {
    color: var(--text-muted);
    transition: color 0.15s;
}
.social a:hover { color: var(--text); }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .features-grid { grid-template-columns: repeat(2, 1fr); }
    .usecases-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .nav-menu { display: none; }
    .hero { padding: 120px 20px 60px; }
    .hero h1 { font-size: 2rem; }
    .hero-cta { flex-direction: column; align-items: center; }
    .features-grid { grid-template-columns: 1fr; gap: 40px; }
    .usecases-grid { grid-template-columns: 1fr; }
    .comparison-row { grid-template-columns: 1fr 1fr; }
    .comparison-cell:nth-child(3),
    .comparison-cell:nth-child(4) { display: none; }
    .footer-inner { grid-template-columns: 1fr; gap: 48px; }
    .footer-links { grid-template-columns: repeat(2, 1fr); }
    .footer-bottom { flex-direction: column; gap: 16px; text-align: center; }
}

@media (max-width: 480px) {
    .cta-platforms { flex-direction: column; gap: 16px; }
    .logos-grid { gap: 24px; }
    .logos-grid span { font-size: 14px; }
}

iframe {
    width: 100%;
    height: 100%;
    border: none;
    border-radius: 12px;
}

.nav-logo img {
    object-fit: cover;
}

.logo-img {
    width: 28px;
    height: 28px;
    object-fit: contain;
    margin-right: 8px;
}