:root {
    --bg: #05070f;
    --bg-soft: #0a0e1c;
    --card: rgba(255,255,255,0.04);
    --card-border: rgba(255,255,255,0.09);
    --text: #f4f6fb;
    --text-dim: #9aa4bf;
    --accent: #38e0ff;
    --accent-2: #7c8cff;
    --success: #34d399;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    background: var(--bg);
    color: var(--text);
    font-family: 'Inter', -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.5;
    overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
.wrap { max-width: 1160px; margin: 0 auto; padding: 0 24px; }
img, svg { max-width: 100%; }

.grid-bg {
    position: fixed; inset: 0; z-index: -1;
    background-image:
        radial-gradient(circle at 15% 10%, rgba(56,224,255,0.10), transparent 40%),
        radial-gradient(circle at 85% 30%, rgba(124,140,255,0.10), transparent 45%),
        linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
    background-size: auto, auto, 44px 44px, 44px 44px;
    background-color: var(--bg);
}

/* Nav */
header.site {
    position: sticky; top: 0; z-index: 50;
    background: rgba(5,7,15,0.75);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--card-border);
}
.nav-row { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 18px; letter-spacing: -0.02em; }
.brand-mark {
    width: 30px; height: 30px; border-radius: 8px;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    display: flex; align-items: center; justify-content: center;
    font-size: 15px; font-weight: 800; color: #04101a;
}
nav.primary { display: flex; align-items: center; gap: 28px; }
nav.primary a.nav-link { font-size: 14px; color: var(--text-dim); font-weight: 500; transition: color .15s; }
nav.primary a.nav-link:hover, nav.primary a.nav-link:focus-visible, nav.primary a.nav-link.active { color: var(--text); }
.nav-actions { display: flex; align-items: center; gap: 12px; }
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 10px 20px; border-radius: 8px; font-size: 14px; font-weight: 600;
    border: 1px solid transparent; cursor: pointer; transition: transform .15s, box-shadow .15s, background .15s, border-color .15s;
}
.btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.btn-ghost { color: var(--text); border-color: var(--card-border); }
.btn-ghost:hover { border-color: rgba(255,255,255,0.3); }
.btn-primary { background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #04101a; }
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 8px 24px rgba(56,224,255,0.25); }
.btn-lg { padding: 14px 28px; font-size: 15px; }
.hamburger { display: none; background: none; border: none; color: var(--text); font-size: 22px; cursor: pointer; }

/* Page header (non-hero pages) */
.page-hero { padding: 72px 0 56px; text-align: center; }
.page-hero .eyebrow { display: inline-flex; }
.page-hero h1.headline { font-size: 44px; }
.page-hero .sub { max-width: 640px; margin-left: auto; margin-right: auto; }

/* Hero */
.hero { padding: 96px 0 72px; }
.hero-grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 56px; align-items: center; }
.eyebrow {
    display: inline-flex; align-items: center; gap: 8px; font-size: 12px; font-weight: 600;
    letter-spacing: 0.06em; text-transform: uppercase; color: var(--accent);
    background: rgba(56,224,255,0.08); border: 1px solid rgba(56,224,255,0.25);
    padding: 6px 14px; border-radius: 999px; margin-bottom: 22px;
}
h1.headline { font-size: 52px; font-weight: 800; line-height: 1.08; letter-spacing: -0.02em; margin-bottom: 20px; }
h1.headline .accent { background: linear-gradient(135deg, var(--accent), var(--accent-2)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.sub { font-size: 18px; color: var(--text-dim); max-width: 520px; margin-bottom: 32px; }
.hero-ctas { display: flex; gap: 14px; margin-bottom: 40px; flex-wrap: wrap; }
.hero-note { font-size: 13px; color: var(--text-dim); }

/* Hero visualization */
.hero-visual { position: relative; }
.dash-card {
    background: var(--card); border: 1px solid var(--card-border); border-radius: 16px;
    padding: 22px; backdrop-filter: blur(10px);
    box-shadow: 0 20px 60px rgba(0,0,0,0.45);
}
.dash-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; }
.dash-head .dots { display: flex; gap: 6px; }
.dash-head .dots span { width: 9px; height: 9px; border-radius: 50%; background: rgba(255,255,255,0.15); }
.dash-title { font-size: 12px; color: var(--text-dim); font-weight: 600; letter-spacing: .04em; }
.dash-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-bottom: 16px; }
.dash-stat { background: rgba(255,255,255,0.03); border: 1px solid var(--card-border); border-radius: 10px; padding: 12px; }
.dash-stat .v { font-size: 20px; font-weight: 800; }
.dash-stat .l { font-size: 11px; color: var(--text-dim); margin-top: 2px; }
.dash-flow { display: flex; align-items: center; justify-content: space-between; padding: 18px 4px; }
.flow-node { display: flex; flex-direction: column; align-items: center; gap: 6px; font-size: 10px; color: var(--text-dim); flex: 1; }
.flow-dot { width: 12px; height: 12px; border-radius: 50%; background: rgba(255,255,255,0.12); border: 1px solid var(--card-border); }
.flow-dot.active { background: var(--accent); box-shadow: 0 0 12px var(--accent); animation: pulse 2s ease-in-out infinite; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: .4; } }
.flow-line { flex: 1.4; height: 2px; background: linear-gradient(90deg, rgba(56,224,255,0.5), rgba(124,140,255,0.15)); position: relative; overflow: hidden; margin: 0 -2px 16px; }
.flow-line::after {
    content: ''; position: absolute; top: 0; left: -30%; width: 30%; height: 100%;
    background: linear-gradient(90deg, transparent, #fff, transparent);
    animation: travel 2.6s linear infinite;
}
@keyframes travel { from { left: -30%; } to { left: 100%; } }
.dash-table { border-top: 1px solid var(--card-border); padding-top: 14px; }
.dt-row { display: grid; grid-template-columns: 1.2fr 1fr 0.8fr 0.8fr; gap: 8px; font-size: 11px; padding: 7px 0; color: var(--text-dim); border-bottom: 1px solid rgba(255,255,255,0.04); }
.dt-row.head { color: var(--text); font-weight: 600; }
.status-pill { font-size: 10px; padding: 2px 8px; border-radius: 999px; display: inline-block; }
.status-connected { background: rgba(52,211,153,0.15); color: var(--success); }
.status-ringing { background: rgba(56,224,255,0.15); color: var(--accent); }
.status-missed { background: rgba(248,113,113,0.15); color: #f87171; }

/* Trust bar */
.trust-bar { padding: 20px 0 60px; border-bottom: 1px solid var(--card-border); }
.trust-row { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; }
.trust-chip {
    display: flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 600; color: var(--text-dim);
    background: var(--card); border: 1px solid var(--card-border); border-radius: 999px; padding: 10px 18px;
}
.trust-chip svg { width: 15px; height: 15px; stroke: var(--accent); flex-shrink: 0; }

/* Section shell */
section.block { padding: 88px 0; }
section.block.tight { padding: 56px 0; }
.block-head { text-align: center; max-width: 640px; margin: 0 auto 52px; }
.block-eyebrow { font-size: 12px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--accent); margin-bottom: 14px; }
h2.block-title { font-size: 36px; font-weight: 800; letter-spacing: -0.02em; margin-bottom: 14px; }
.block-sub { color: var(--text-dim); font-size: 16px; }

/* Feature cards */
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.feature-grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
.feature-card {
    background: var(--card); border: 1px solid var(--card-border); border-radius: 14px; padding: 26px;
    transition: transform .2s, border-color .2s, box-shadow .2s;
}
.feature-card:hover { transform: translateY(-4px); border-color: rgba(56,224,255,0.35); box-shadow: 0 16px 40px rgba(0,0,0,0.35); }
.feature-icon {
    width: 44px; height: 44px; border-radius: 10px; margin-bottom: 18px;
    background: linear-gradient(135deg, rgba(56,224,255,0.18), rgba(124,140,255,0.10));
    border: 1px solid rgba(56,224,255,0.25);
    display: flex; align-items: center; justify-content: center;
}
.feature-icon svg { width: 22px; height: 22px; stroke: var(--accent); }
.feature-icon.lg { width: 56px; height: 56px; border-radius: 12px; }
.feature-icon.lg svg { width: 28px; height: 28px; }
.feature-card h3 { font-size: 17px; font-weight: 700; margin-bottom: 8px; }
.feature-card p { font-size: 14px; color: var(--text-dim); margin-bottom: 14px; }
.feature-link { font-size: 13px; font-weight: 600; color: var(--accent); display: inline-flex; align-items: center; gap: 5px; }

/* Call flow */
.flow-wide { display: flex; align-items: flex-start; justify-content: space-between; gap: 4px; margin-top: 20px; }
.flow-step { flex: 1; text-align: center; }
.flow-step .icon { width: 52px; height: 52px; border-radius: 12px; background: var(--card); border: 1px solid var(--card-border); display: flex; align-items: center; justify-content: center; margin: 0 auto 12px; }
.flow-step .icon svg { width: 24px; height: 24px; stroke: var(--accent); }
.flow-step .lbl { font-size: 13px; font-weight: 600; }
.flow-connector { flex: 0.6; height: 2px; margin-top: 26px; background: linear-gradient(90deg, rgba(56,224,255,0.5), rgba(124,140,255,0.15)); position: relative; overflow: hidden; }
.flow-connector::after { content: ''; position: absolute; top: 0; left: -40%; width: 40%; height: 100%; background: linear-gradient(90deg, transparent, #fff, transparent); animation: travel 3s linear infinite; }

/* Two-column content block (feature detail pages) */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.split.reverse .split-visual { order: -1; }
.split h2 { font-size: 30px; font-weight: 800; margin-bottom: 16px; letter-spacing: -0.02em; }
.split p { color: var(--text-dim); font-size: 16px; margin-bottom: 20px; }
.check-list { list-style: none; }
.check-list li { display: flex; gap: 10px; font-size: 15px; color: var(--text); margin-bottom: 12px; align-items: flex-start; }
.check-list svg { width: 18px; height: 18px; stroke: var(--success); flex-shrink: 0; margin-top: 2px; }
.split-visual .dash-card { max-width: 460px; }

/* Pricing */
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; align-items: stretch; }
.price-card { background: var(--card); border: 1px solid var(--card-border); border-radius: 16px; padding: 32px 28px; display: flex; flex-direction: column; }
.price-card.featured { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent), 0 20px 50px rgba(56,224,255,0.12); position: relative; }
.price-badge { position: absolute; top: -13px; left: 50%; transform: translateX(-50%); background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #04101a; font-size: 11px; font-weight: 700; padding: 5px 14px; border-radius: 999px; letter-spacing: .03em; }
.price-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 6px; }
.price-card .price-desc { font-size: 13px; color: var(--text-dim); margin-bottom: 22px; }
.price-card .price-amt { font-size: 34px; font-weight: 800; margin-bottom: 4px; }
.price-card .price-amt span { font-size: 14px; font-weight: 500; color: var(--text-dim); }
.price-card .price-note { font-size: 12px; color: var(--text-dim); margin-bottom: 24px; }
.price-card ul { list-style: none; margin-bottom: 28px; flex: 1; }
.price-card ul li { display: flex; gap: 9px; font-size: 14px; color: var(--text-dim); margin-bottom: 12px; align-items: flex-start; }
.price-card ul li svg { width: 16px; height: 16px; stroke: var(--success); flex-shrink: 0; margin-top: 3px; }

/* Usage rate table */
.rate-table { width: 100%; border-collapse: collapse; margin-top: 24px; }
.rate-table th, .rate-table td { text-align: left; padding: 14px 16px; font-size: 14px; border-bottom: 1px solid var(--card-border); }
.rate-table th { color: var(--text-dim); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: .04em; }
.rate-table td.amt { font-weight: 700; }

/* CTA band */
.cta-band {
    background: linear-gradient(135deg, rgba(56,224,255,0.10), rgba(124,140,255,0.06));
    border: 1px solid var(--card-border); border-radius: 20px; padding: 64px 40px; text-align: center;
}
.cta-band h2 { font-size: 32px; font-weight: 800; margin-bottom: 12px; letter-spacing: -0.02em; }
.cta-band p { color: var(--text-dim); font-size: 16px; margin-bottom: 30px; }
.cta-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* API code block */
.code-block {
    background: #0a0e1c; border: 1px solid var(--card-border); border-radius: 12px; padding: 20px 22px;
    font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace; font-size: 13px; color: #c9d3ee;
    overflow-x: auto; line-height: 1.7;
}
.code-block .k { color: #38e0ff; }
.code-block .s { color: #a7f3d0; }
.code-block .c { color: #6b7690; }

/* FAQ */
.faq-item { border-bottom: 1px solid var(--card-border); padding: 20px 0; }
.faq-item h3 { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
.faq-item p { font-size: 14px; color: var(--text-dim); }

/* Footer */
footer.site { border-top: 1px solid var(--card-border); padding: 56px 0 32px; margin-top: 40px; }
.footer-grid { display: grid; grid-template-columns: 1.3fr repeat(4, 1fr); gap: 28px; margin-bottom: 40px; }
.footer-col h4 { font-size: 12px; text-transform: uppercase; letter-spacing: .06em; color: var(--text-dim); margin-bottom: 16px; }
.footer-col a { display: block; font-size: 14px; color: var(--text-dim); margin-bottom: 10px; }
.footer-col a:hover { color: var(--text); }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; padding-top: 24px; border-top: 1px solid var(--card-border); font-size: 13px; color: var(--text-dim); flex-wrap: wrap; gap: 12px; }

/* Mobile nav */
.mobile-menu { display: none; }

@media (max-width: 900px) {
    .hero-grid { grid-template-columns: 1fr; }
    .feature-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    h1.headline { font-size: 40px; }
    .split, .split.reverse { grid-template-columns: 1fr; }
    .split.reverse .split-visual { order: 0; }
    .pricing-grid { grid-template-columns: 1fr; max-width: 420px; margin: 0 auto; }
}
@media (max-width: 720px) {
    nav.primary { display: none; }
    .hamburger { display: block; }
    .mobile-menu.open {
        display: flex; flex-direction: column; gap: 4px; padding: 16px 24px 20px;
        border-top: 1px solid var(--card-border); background: var(--bg-soft);
    }
    .mobile-menu a { padding: 12px 4px; font-size: 15px; color: var(--text-dim); border-bottom: 1px solid rgba(255,255,255,0.05); }
    .nav-actions .btn-ghost { display: none; }
    .flow-wide { flex-wrap: wrap; }
    .flow-connector { display: none; }
    .flow-step { flex: 0 0 30%; }
}
@media (max-width: 600px) {
    .feature-grid, .feature-grid.cols-2 { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    h1.headline { font-size: 32px; }
    .page-hero h1.headline { font-size: 30px; }
    .dash-stats { grid-template-columns: 1fr 1fr; }
    .dt-row { grid-template-columns: 1fr 1fr; }
    .dt-row span:nth-child(3), .dt-row span:nth-child(4) { display: none; }
    section.block { padding: 56px 0; }
    .cta-band { padding: 44px 22px; }
    .rate-table { display: block; overflow-x: auto; white-space: nowrap; }
}

/* Legal page prose (Terms / Privacy / Acceptable Use) */
.legal-content { max-width: 760px; margin: 0 auto; }
.legal-content .legal-updated { color: var(--text-dim); font-size: 14px; margin-bottom: 8px; }
.legal-content .legal-notice {
    background: rgba(251,191,36,0.08); border: 1px solid rgba(251,191,36,0.3);
    border-radius: 10px; padding: 16px 18px; font-size: 14px; color: var(--text-dim);
    margin-bottom: 40px;
}
.legal-content .legal-notice strong { color: var(--text); }
.legal-content h2 { font-size: 22px; font-weight: 700; margin: 40px 0 14px; letter-spacing: -0.01em; }
.legal-content h2:first-of-type { margin-top: 0; }
.legal-content p { color: var(--text-dim); font-size: 15px; margin-bottom: 14px; }
.legal-content ul { color: var(--text-dim); font-size: 15px; margin: 0 0 14px 22px; }
.legal-content li { margin-bottom: 8px; }
.legal-content a { color: var(--accent); font-weight: 600; }
.legal-content strong { color: var(--text); }