:root {
  --ink: #0c2430;
  --ink-soft: #4a6573;
  --paper: #f4f7f9;
  --foam: #ffffff;
  --sea: #14506e;
  --sea-deep: #0f3d54;
  --sea-soft: #e8f1f6;
  --sun: #2bb3b6;
  --line: rgba(20, 80, 110, 0.14);
  --shadow: 0 28px 70px rgba(15, 61, 84, 0.22);
  --radius: 18px;
  --font-display: Arial, Helvetica, "Noto Sans", sans-serif;
  --font-body: Arial, Helvetica, "Noto Sans", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.6;
  background:
    radial-gradient(1100px 520px at 8% -8%, rgba(43, 179, 182, 0.16), transparent 55%),
    radial-gradient(900px 480px at 100% 0%, rgba(20, 80, 110, 0.12), transparent 50%),
    linear-gradient(180deg, #eef4f8 0%, var(--paper) 45%, #e8eef2 100%);
  min-height: 100vh;
}

a {
  color: var(--sea);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--ink);
}

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

.wrap {
  width: min(1080px, calc(100% - 2rem));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(14px);
  background: rgba(244, 247, 249, 0.82);
  border-bottom: 1px solid var(--line);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.03em;
  color: var(--ink);
  text-decoration: none;
}

.brand-mark {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  box-shadow: 0 6px 16px rgba(15, 61, 84, 0.18);
  object-fit: cover;
  background: #fff;
}

.nav-links {
  display: flex;
  gap: 1.1rem;
  align-items: center;
  flex-wrap: wrap;
}

.nav-links a {
  text-decoration: none;
  color: var(--ink-soft);
  font-weight: 600;
  font-size: 0.95rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  border-radius: 999px;
  padding: 0.75rem 1.25rem;
  font-weight: 700;
  text-decoration: none;
  border: 1px solid transparent;
  transition: transform 180ms ease, background 180ms ease, box-shadow 180ms ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--sea);
  color: var(--foam);
  box-shadow: 0 10px 24px rgba(20, 80, 110, 0.28);
}

.btn-primary:hover {
  background: var(--sea-deep);
  color: var(--foam);
}

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line);
}

.hero {
  padding: 3.5rem 0 3rem;
  display: grid;
  gap: 2.5rem;
  align-items: center;
}

@media (min-width: 880px) {
  .hero {
    grid-template-columns: 1.05fr 0.95fr;
    min-height: min(78vh, 760px);
    padding-top: 4.5rem;
    gap: 3rem;
  }
}

.eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--sea);
  margin-bottom: 1rem;
  opacity: 0;
  animation: rise 700ms ease forwards 80ms;
}

.hero-brand {
  font-family: var(--font-display);
  font-size: clamp(3.2rem, 9vw, 5.8rem);
  line-height: 0.95;
  letter-spacing: -0.02em;
  font-weight: 700;
  margin: 0 0 1rem;
  color: var(--sea-deep);
  opacity: 0;
  animation: rise 800ms ease forwards 160ms;
}

.hero-lead {
  font-size: clamp(1.1rem, 2.2vw, 1.35rem);
  color: var(--ink-soft);
  max-width: 34ch;
  margin: 0 0 1.6rem;
  opacity: 0;
  animation: rise 800ms ease forwards 260ms;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  opacity: 0;
  animation: rise 800ms ease forwards 360ms;
}

.hero-visual {
  display: flex;
  justify-content: center;
  opacity: 0;
  animation: fade-scale 900ms ease forwards 280ms;
}

.device-frame {
  margin: 0;
  width: min(320px, 86vw);
  border-radius: 28px;
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid rgba(20, 80, 110, 0.16);
  background: var(--foam);
  transform: rotate(-1.5deg);
}

.device-frame img {
  width: 100%;
  height: auto;
  vertical-align: middle;
}

.section {
  padding: 3.5rem 0;
}

.section h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  letter-spacing: -0.04em;
  margin: 0 0 0.75rem;
  color: var(--sea-deep);
}

.section .lede {
  max-width: 52ch;
  color: var(--ink-soft);
  margin: 0 0 1.8rem;
}

.feature-list {
  display: grid;
  gap: 0.9rem;
  padding: 0;
  margin: 0;
  list-style: none;
}

.feature-list li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.85rem;
  align-items: start;
  padding: 1rem 0;
  border-top: 1px solid var(--line);
}

.feature-list li:last-child {
  border-bottom: 1px solid var(--line);
}

.feature-list p {
  margin: 0.2rem 0 0;
  color: var(--ink-soft);
}

.dot {
  width: 0.7rem;
  height: 0.7rem;
  margin-top: 0.45rem;
  border-radius: 50%;
  background: var(--sun);
  box-shadow: 0 0 0 6px rgba(43, 179, 182, 0.16);
}

.note {
  margin-top: 2rem;
  padding: 1.2rem 1.3rem;
  border-left: 4px solid var(--sun);
  background: rgba(255, 255, 255, 0.7);
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 2rem 0 2.5rem;
  color: var(--ink-soft);
  font-size: 0.95rem;
}

.site-footer .footer-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 2rem;
  justify-content: space-between;
  align-items: center;
}

.footer-brand {
  display: flex;
  gap: 0.75rem;
  align-items: center;
}

.footer-brand img {
  border-radius: 50%;
  background: #fff;
}

.legal {
  padding: 3rem 0 4rem;
}

.legal h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3rem);
  letter-spacing: -0.04em;
  margin: 0 0 0.5rem;
  color: var(--sea-deep);
}

.legal .meta {
  color: var(--ink-soft);
  margin-bottom: 2rem;
}

.legal h2 {
  font-family: var(--font-display);
  font-size: 1.35rem;
  margin: 2rem 0 0.7rem;
  letter-spacing: -0.02em;
  color: var(--sea-deep);
}

.legal h3 {
  font-size: 1.05rem;
  margin: 1.2rem 0 0.5rem;
}

.legal p,
.legal li {
  color: var(--ink-soft);
}

.legal ul {
  padding-left: 1.2rem;
}

.legal table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0 1.5rem;
  font-size: 0.95rem;
}

.legal th,
.legal td {
  border: 1px solid var(--line);
  padding: 0.7rem 0.8rem;
  text-align: left;
  vertical-align: top;
}

.legal th {
  background: var(--sea-soft);
  color: var(--ink);
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fade-scale {
  from {
    opacity: 0;
    transform: scale(0.96) translateY(12px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }

  .eyebrow,
  .hero-brand,
  .hero-lead,
  .hero-cta,
  .hero-visual {
    opacity: 1;
  }
}