:root {
    --navy: #1f3360;
    --navy-deep: #16244a;
    --coral: #f15a3a;
    --coral-deep: #d9421f;
    --teal: #2a9fd0;
    --ink: #1d1d1f;
    --ink-soft: #6e6e73;
    --line: #e6e8ee;
    --bg: #ffffff;
    --bg-soft: #f5f6f9;
    --dark: #0b0c0e;
    --dark-soft: #14161a;
    --max: 1120px;
    --shadow: 0 2px 8px rgba(11, 12, 14, 0.06), 0 24px 60px rgba(11, 12, 14, 0.12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--dark); }

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    color: var(--ink);
    background: var(--bg);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--coral-deep); text-decoration: none; }
img, video { max-width: 100%; display: block; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 24px; }
.narrow { max-width: 760px; margin: 0 auto; }

/* Header */
.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    background: rgba(255, 255, 255, 0.72);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}
.site-header .wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 92px;
}
.brand img { height: 60px; width: auto; }
.nav a {
    color: var(--ink);
    font-weight: 500;
    font-size: 15px;
    margin-left: 26px;
    opacity: 0.85;
    transition: opacity 0.15s ease;
}
.nav a:hover { opacity: 1; }
.nav a.active {
    opacity: 1;
    border-bottom: 3px solid var(--teal);
    padding-bottom: 4px;
}

/* Hero (dark, dramatic) */
.hero {
    background:
        radial-gradient(1200px 600px at 70% -10%, rgba(241, 90, 58, 0.22), transparent 60%),
        radial-gradient(900px 500px at 10% 10%, rgba(42, 159, 208, 0.16), transparent 55%),
        var(--dark);
    color: #fff;
    text-align: center;
    padding: 96px 0 0;
    overflow: hidden;
}
.eyebrow {
    text-transform: uppercase;
    letter-spacing: 0.18em;
    font-size: 13px;
    font-weight: 600;
    color: var(--coral);
    margin: 0 0 18px;
}
.hero h1 {
    font-size: clamp(40px, 7vw, 80px);
    line-height: 1.04;
    letter-spacing: -0.03em;
    font-weight: 700;
    margin: 0 auto 22px;
    padding-bottom: 0.12em;
    max-width: 15ch;
    background: linear-gradient(180deg, #ffffff 30%, #c9ccd6 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}
.hero .lede {
    font-size: clamp(18px, 2.4vw, 23px);
    color: #b9bdc9;
    max-width: 46ch;
    margin: 0 auto 34px;
    line-height: 1.45;
}

/* Buttons */
.btn {
    display: inline-block;
    background: var(--coral);
    color: #fff;
    font-weight: 600;
    font-size: 17px;
    padding: 14px 30px;
    border-radius: 999px;
    transition: transform 0.12s ease, background 0.15s ease;
}
.btn:hover { background: var(--coral-deep); transform: translateY(-1px); }
.btn.ghost {
    background: transparent;
    color: #fff;
    border: 1.5px solid rgba(255, 255, 255, 0.28);
    margin-left: 12px;
}
.btn.ghost:hover { border-color: #fff; background: rgba(255,255,255,0.06); }
.btn.dark { background: var(--ink); }
.btn.dark:hover { background: #000; }

/* Hero video */
.hero-media {
    margin-top: 64px;
    padding-bottom: 80px;
}
.device {
    width: min(400px, 82vw);
    margin: 0 auto;
    border-radius: 28px;
    overflow: hidden;
    background: #000;
    box-shadow: 0 0 0 1px rgba(255,255,255,0.08), 0 40px 120px rgba(0,0,0,0.55);
}
.device video, .device img { width: 100%; height: auto; display: block; }

/* Stat band */
.stats {
    background: var(--bg);
    border-bottom: 1px solid var(--line);
    padding: 64px 0;
}
.stat-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    text-align: center;
}
.stat .num {
    font-size: clamp(34px, 5vw, 52px);
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--navy-deep);
    line-height: 1;
}
.stat .lbl { color: var(--ink-soft); font-size: 15px; margin-top: 10px; }

/* Section scaffolding */
section { padding: 110px 0; }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 64px; }
.section-head .kicker {
    text-transform: uppercase;
    letter-spacing: 0.14em;
    font-size: 13px;
    font-weight: 600;
    color: var(--coral-deep);
    margin: 0 0 14px;
}
h2 {
    font-size: clamp(30px, 4.4vw, 48px);
    line-height: 1.08;
    letter-spacing: -0.02em;
    font-weight: 700;
    color: var(--navy-deep);
    margin: 0 0 16px;
}
.section-head p { font-size: 19px; color: var(--ink-soft); margin: 0; }

/* Feature cards */
.features { background: var(--bg-soft); }
.fgrid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.fcard {
    background: var(--bg);
    border: 1px solid var(--line);
    border-radius: 20px;
    padding: 32px;
    box-shadow: var(--shadow);
}
.fcard .dot {
    flex: none;
    width: 32px; height: 32px; border-radius: 9px;
    background: url("tremor-icon.png") center / cover no-repeat;
}
.fcard h3 { display: flex; align-items: center; gap: 12px; margin: 0 0 8px; font-size: 20px; color: var(--navy); letter-spacing: -0.01em; }
.fcard p { margin: 0; color: var(--ink-soft); font-size: 15.5px; }

/* Showcase split (dark) */
.showcase { background: var(--dark); color: #fff; }
.showcase h2 { color: #fff; }
.split {
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    gap: 64px;
    align-items: center;
}
.split .kicker {
    text-transform: uppercase; letter-spacing: 0.14em; font-size: 13px;
    font-weight: 600; color: var(--coral); margin: 0 0 14px;
}
.split p { font-size: 18px; color: #b9bdc9; }
.split .device { width: 100%; max-width: 380px; margin-left: auto; }

/* Closing CTA */
/* When the feature grid leaves a single orphan on the last row,
   center it under the middle column instead of pinning it left. */
@media (min-width: 861px) {
    .fgrid .fcard:last-child:nth-child(4) { grid-column: 2; }
}

.closing { text-align: center; background: var(--dark); color: #fff; }
.closing h2 { margin-bottom: 24px; color: #fff; }

/* Footer */
.site-footer {
    background: var(--dark);
    color: #c6cde0;
    padding: 48px 0;
}
.site-footer .wrap {
    display: flex; justify-content: center; align-items: center;
    flex-wrap: wrap; gap: 16px;
}
.site-footer a { color: #fff; margin-left: 22px; font-size: 15px; }
.site-footer a:first-child { margin-left: 0; }
.site-footer a:hover { color: var(--coral); }
.site-footer .copy { font-size: 14px; color: #8b96b5; text-align: center; }

/* Content pages (support / privacy) */
.page { padding: 80px 0 100px; }
.page h1 {
    font-size: clamp(34px, 5vw, 52px);
    line-height: 1.06;
    letter-spacing: -0.02em;
    font-weight: 700;
    color: var(--navy-deep);
    margin: 0 0 10px;
}
.page .updated { color: var(--ink-soft); font-size: 15px; margin: 0 0 44px; }

.prose { max-width: 70ch; }
.prose h2 {
    font-size: 26px;
    letter-spacing: -0.01em;
    margin: 48px 0 14px;
}
.prose p, .prose li { color: var(--ink); font-size: 17px; line-height: 1.65; }
.prose ul { padding-left: 22px; }
.prose li { margin-bottom: 8px; }

.callout {
    background: var(--bg-soft);
    border: 1px solid var(--line);
    border-left: 3px solid var(--coral);
    border-radius: 14px;
    padding: 20px 24px;
    margin: 32px 0;
}
.callout p { margin: 0; }

.contact-box {
    background: var(--bg-soft);
    border: 1px solid var(--line);
    border-radius: 20px;
    box-shadow: var(--shadow);
    padding: 32px;
    max-width: 480px;
    margin: 28px 0 8px;
}
.contact-box .label {
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-size: 12px;
    font-weight: 700;
    color: var(--ink-soft);
    margin: 0 0 6px;
}
.contact-box .email {
    font-size: 24px;
    font-weight: 600;
    color: var(--navy);
    letter-spacing: -0.01em;
}
.contact-box .email:hover { color: var(--coral-deep); }

@media (max-width: 860px) {
    .fgrid { grid-template-columns: 1fr; }
    .stat-grid { grid-template-columns: repeat(2, 1fr); gap: 36px 24px; }
    .split { grid-template-columns: 1fr; gap: 40px; }
    section { padding: 72px 0; }
    .nav a { margin-left: 16px; font-size: 14px; }
    .site-footer .wrap { flex-direction: column; align-items: center; }
    .site-footer .links a { margin-left: 0; margin-right: 18px; }
}