:root {
  --navy-950: #061827;
  --navy-900: #071b31;
  --navy-800: #0b2d43;
  --navy-700: #17465c;
  --teal: #22b8ab;
  --teal-dark: #087c75;
  --teal-soft: #e8f7f5;
  --amber: #e9a946;
  --amber-soft: #fff4df;
  --ink: #102332;
  --muted: #5c6e7a;
  --line: #dce5eb;
  --surface: #ffffff;
  --soft: #f3f7f9;
  --shadow: 0 24px 70px rgba(4, 25, 43, 0.13);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 86px; }
body {
  margin: 0;
  min-width: 280px;
  overflow-x: hidden;
  background: var(--surface);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; }
a { color: inherit; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { line-height: 1.08; letter-spacing: -0.035em; }

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 100;
  transform: translateY(-150%);
  border-radius: 8px;
  background: #fff;
  color: var(--navy-900);
  padding: 10px 14px;
  font-weight: 800;
}
.skip-link:focus { transform: translateY(0); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 24px;
  min-height: 76px;
  padding: 10px max(22px, calc((100vw - 1200px) / 2));
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(6, 24, 39, 0.95);
  color: #fff;
  backdrop-filter: blur(18px);
}
.brand { display: inline-flex; align-items: center; gap: 11px; font-weight: 850; text-decoration: none; white-space: nowrap; }
.brand img { border-radius: 12px; box-shadow: 0 8px 20px rgba(0,0,0,.2); }
.site-header nav { display: flex; justify-content: center; gap: clamp(14px, 2.3vw, 28px); }
.site-header nav a, .footer-links a { color: #c7d6df; font-size: .88rem; font-weight: 700; text-decoration: none; }
.site-header nav a:hover, .site-header nav a:focus-visible, .footer-links a:hover, .footer-links a:focus-visible { color: #fff; }
.header-cta {
  border: 1px solid rgba(255,255,255,.18);
  border-radius: 999px;
  background: var(--teal);
  color: #05242d;
  padding: 11px 18px;
  font-size: .86rem;
  font-weight: 850;
  text-decoration: none;
}

.section-shell { width: min(1200px, calc(100% - 40px)); margin-inline: auto; }
section.section-shell, .focus, .features, .access, .privacy, .faq { padding-block: clamp(76px, 8vw, 120px); }
.section-heading { max-width: 760px; margin-bottom: 48px; }
.section-heading.compact { max-width: 660px; }
.section-heading.centered { margin-inline: auto; text-align: center; }
.section-heading h2, .topics h2, .privacy h2, .footer-cta h2 { margin-bottom: 18px; font-size: clamp(2.35rem, 4.6vw, 4.5rem); }
.section-heading > p:last-child, .topics .section-heading > p:last-child { color: var(--muted); font-size: 1.06rem; }
.section-kicker {
  margin-bottom: 15px;
  color: var(--teal-dark);
  font-size: .74rem;
  font-weight: 900;
  letter-spacing: .17em;
  text-transform: uppercase;
}
.section-kicker.light { color: #56d6ca; }

.hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 78% 38%, rgba(34,184,171,.2), transparent 27rem),
    radial-gradient(circle at 20% 18%, rgba(126,91,214,.16), transparent 24rem),
    linear-gradient(145deg, var(--navy-950), var(--navy-800));
  color: #fff;
}
.hero::after {
  content: "";
  position: absolute;
  right: -160px;
  bottom: -300px;
  width: 620px;
  height: 620px;
  border: 1px solid rgba(45,198,181,.16);
  border-radius: 50%;
  box-shadow: 0 0 0 80px rgba(45,198,181,.035), 0 0 0 160px rgba(45,198,181,.025);
}
.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(470px, .95fr);
  align-items: center;
  gap: clamp(42px, 6vw, 90px);
  min-height: calc(100vh - 76px);
  padding-block: clamp(52px, 6vw, 80px);
}
.hero-copy { max-width: 700px; }
.eyebrow {
  display: inline-flex;
  margin-bottom: 22px;
  border: 1px solid rgba(255,255,255,.15);
  border-radius: 999px;
  background: rgba(255,255,255,.07);
  color: #d4e2e9;
  padding: 8px 13px;
  font-size: .74rem;
  font-weight: 800;
  letter-spacing: .1em;
  text-transform: uppercase;
}
.app-name { display: flex; align-items: center; gap: 14px; margin-bottom: 23px; }
.app-name img { border-radius: 17px; box-shadow: 0 14px 34px rgba(0,0,0,.3); }
.app-name div { display: grid; }
.app-name strong { font-size: 1.03rem; }
.app-name span { color: #a9bdc8; font-size: .83rem; }
.hero h1 { max-width: 760px; margin-bottom: 24px; font-size: clamp(3.15rem, 5vw, 5.2rem); }
.hero-lead { max-width: 680px; margin-bottom: 24px; color: #c7d6df; font-size: clamp(1.04rem, 1.6vw, 1.23rem); }
.play-badge { display: inline-block; border-radius: 12px; transition: transform 160ms ease; }
.play-badge img { width: 194px; height: auto; }
.play-badge:hover { transform: translateY(-2px); }
.play-badge:focus-visible, a:focus-visible, summary:focus-visible, .gallery:focus-visible { outline: 3px solid var(--amber); outline-offset: 4px; }
.hero-facts { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 20px; }
.hero-facts span { border: 1px solid rgba(255,255,255,.13); border-radius: 999px; background: rgba(255,255,255,.055); color: #c4d4dd; padding: 8px 12px; font-size: .8rem; }
.hero-facts strong { color: #fff; }
.hero-screens { position: relative; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); align-items: center; gap: 9px; min-width: 0; }
.hero-screens::before { content: ""; position: absolute; inset: 13% 0; border: 1px solid rgba(34,184,171,.22); border-radius: 50%; box-shadow: 0 0 0 46px rgba(34,184,171,.05); }
.hero-screen { position: relative; margin: 0; overflow: hidden; border: 1px solid rgba(255,255,255,.18); border-radius: 22px; background: #0a283a; box-shadow: 0 24px 70px rgba(0,0,0,.3); }
.hero-screen img { width: 100%; height: auto; }
.screen-left { transform: rotate(-3deg) translateY(28px); }
.screen-center { z-index: 2; transform: scale(1.08); }
.screen-right { transform: rotate(3deg) translateY(28px); }

.focus { border-bottom: 1px solid var(--line); }
.focus-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: clamp(44px, 8vw, 120px); align-items: start; }
.focus-copy { color: var(--muted); font-size: clamp(1.05rem, 1.6vw, 1.2rem); }
.decision-list { display: grid; gap: 10px; }
.decision-list span { position: relative; border: 1px solid var(--line); border-radius: 16px; background: var(--soft); padding: 15px 18px 15px 48px; font-weight: 760; }
.decision-list span::before { content: "?"; position: absolute; left: 15px; top: 13px; display: grid; place-items: center; width: 24px; height: 24px; border-radius: 50%; background: var(--teal); color: #07303b; font-size: .78rem; font-weight: 900; }

.how { background: var(--soft); }
.how .section-shell { padding-block: clamp(76px, 8vw, 120px); }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.steps article { border: 1px solid var(--line); border-radius: 24px; background: #fff; padding: clamp(24px, 3vw, 36px); box-shadow: 0 14px 36px rgba(8,37,57,.055); }
.step-number { display: inline-grid; place-items: center; width: 46px; height: 46px; margin-bottom: 40px; border-radius: 14px; background: var(--teal-soft); color: var(--teal-dark); font-size: .76rem; font-weight: 900; }
.steps h3 { margin-bottom: 13px; font-size: 1.45rem; }
.steps p { margin-bottom: 0; color: var(--muted); font-size: .95rem; }

.split-heading { display: flex; align-items: end; justify-content: space-between; gap: 36px; max-width: none; }
.split-heading > div { max-width: 760px; }
.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 13px; margin-bottom: 42px; }
.feature-grid article { border: 1px solid var(--line); border-radius: 19px; background: #fff; padding: 21px; }
.feature-grid article:last-child { background: var(--teal-soft); border-color: #bde8e3; }
.feature-grid h3 { margin-bottom: 9px; font-size: 1.1rem; }
.feature-grid p { margin-bottom: 0; color: var(--muted); font-size: .9rem; }
.gallery {
  display: grid;
  grid-template-columns: repeat(8, minmax(238px, 1fr));
  gap: 17px;
  max-width: 100%;
  overflow-x: auto;
  overscroll-behavior-inline: contain;
  padding: 8px 4px 24px;
  scroll-snap-type: x mandatory;
  scrollbar-color: var(--teal) #d9e5e9;
}
.gallery figure { margin: 0; scroll-snap-align: start; }
.gallery img { width: 100%; height: auto; border: 1px solid var(--line); border-radius: 21px; background: var(--navy-900); box-shadow: 0 18px 45px rgba(5,33,51,.12); }
.gallery figcaption { padding: 12px 3px 0; color: var(--muted); font-size: .84rem; font-weight: 800; }
.gallery-hint { margin: 0; color: var(--muted); font-size: .82rem; }

.topics { width: min(1300px, calc(100% - 24px)); margin-inline: auto; border-radius: 38px; background: linear-gradient(140deg, var(--navy-950), var(--navy-800)); color: #fff; box-shadow: var(--shadow); }
.topics-grid { display: grid; grid-template-columns: .95fr 1.05fr; gap: clamp(45px, 8vw, 110px); align-items: center; padding-block: clamp(60px, 7vw, 92px); }
.topics .section-heading { margin-bottom: 0; }
.topics .section-heading > p:last-child { color: #bbccd6; }
.topic-list { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin: 0; padding: 0; list-style: none; }
.topic-list li { position: relative; border: 1px solid rgba(255,255,255,.12); border-radius: 15px; background: rgba(255,255,255,.055); padding: 14px 14px 14px 39px; color: #e6eef2; font-weight: 700; font-size: .92rem; }
.topic-list li::before { content: ""; position: absolute; left: 15px; top: 20px; width: 9px; height: 9px; border-radius: 50%; background: var(--amber); }

.access-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; max-width: 1000px; margin-inline: auto; }
.plan-card { display: flex; flex-direction: column; justify-content: space-between; min-height: 480px; border: 1px solid var(--line); border-radius: 28px; padding: clamp(28px, 4vw, 44px); }
.free-plan { background: var(--soft); }
.pro-plan { background: linear-gradient(145deg, #eaf9f7, #fff); border-color: #a9dfd9; box-shadow: 0 24px 65px rgba(8,124,117,.12); }
.plan-label { margin-bottom: 14px; color: var(--teal-dark); font-size: .73rem; font-weight: 900; letter-spacing: .15em; text-transform: uppercase; }
.plan-card h3 { margin-bottom: 13px; font-size: 2rem; }
.plan-card > div > p:last-child { color: var(--muted); }
.plan-card ul { display: grid; gap: 12px; margin: 26px 0; padding: 0; list-style: none; }
.plan-card li { position: relative; padding-left: 29px; }
.plan-card li::before { content: "✓"; position: absolute; left: 0; top: 0; color: var(--teal-dark); font-weight: 900; }

.privacy { width: min(1280px, calc(100% - 24px)); }
.privacy-panel { position: relative; display: grid; grid-template-columns: 1.05fr .95fr; gap: clamp(46px, 8vw, 110px); overflow: hidden; border-radius: 36px; background: #083c45; color: #fff; padding: clamp(34px, 6vw, 76px); box-shadow: var(--shadow); }
.privacy-panel::after { content: ""; position: absolute; right: -160px; bottom: -240px; width: 480px; height: 480px; border: 1px solid rgba(86,214,202,.18); border-radius: 50%; box-shadow: 0 0 0 70px rgba(86,214,202,.04); }
.privacy-panel > div { position: relative; z-index: 1; }
.privacy-panel > div > p:not(.section-kicker) { color: #c7dddd; }
.privacy-warning { font-size: .9rem; }
.privacy-panel a { color: #ffe0a8; font-weight: 800; text-underline-offset: 5px; }
.privacy-list { position: relative; z-index: 1; margin: 0; padding: 0; list-style: none; }
.privacy-list li { display: grid; gap: 2px; padding: 17px 0; border-bottom: 1px solid rgba(255,255,255,.14); }
.privacy-list li:first-child { padding-top: 0; }
.privacy-list strong { font-size: 1.05rem; }
.privacy-list span { color: #b9d2d1; font-size: .88rem; }

.faq-list { border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { position: relative; cursor: pointer; list-style: none; padding: 22px 48px 22px 0; font-size: clamp(1.08rem, 1.8vw, 1.28rem); font-weight: 850; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 8px; top: 17px; color: var(--teal-dark); font-size: 1.5rem; font-weight: 500; }
.faq details[open] summary::after { content: "−"; }
.faq details p { max-width: 850px; margin-bottom: 0; padding: 0 46px 24px 0; color: var(--muted); }

footer { background: var(--navy-950); color: #fff; }
.footer-cta { display: flex; align-items: end; justify-content: space-between; gap: 38px; padding-block: clamp(64px, 7vw, 94px); border-bottom: 1px solid rgba(255,255,255,.11); }
.footer-cta > div { max-width: 790px; }
.footer-cta h2 { margin-bottom: 0; }
.footer-main { display: flex; justify-content: space-between; align-items: flex-start; gap: 40px; padding-block: 36px; }
.footer-brand p { max-width: 460px; margin: 15px 0 0; color: #9fb5c1; font-size: .9rem; }
.footer-links { display: flex; flex-wrap: wrap; gap: 22px; }
.disclaimer { display: flex; justify-content: space-between; gap: 40px; padding-block: 26px 110px; border-top: 1px solid rgba(255,255,255,.1); }
.disclaimer p { margin: 0; color: #91a8b5; font-size: .78rem; }
.disclaimer p:first-child { max-width: 880px; }
.disclaimer p:last-child { white-space: nowrap; }
.mobile-install { display: none; }

@media (max-width: 1100px) {
  .site-header nav { display: none; }
  .site-header { grid-template-columns: 1fr auto; }
  .hero-grid { grid-template-columns: minmax(0, 1fr) minmax(400px, .85fr); }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; min-height: auto; }
  .hero-copy { max-width: 760px; }
  .hero-screens { width: min(650px, 100%); margin-inline: auto; }
  .focus-grid, .topics-grid, .privacy-panel { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .step-number { margin-bottom: 22px; }
  .topics { border-radius: 30px; }
  .access-grid { grid-template-columns: 1fr; max-width: 650px; }
  .plan-card { min-height: auto; }
}

@media (max-width: 620px) {
  html { scroll-padding-top: 68px; }
  body { padding-bottom: 84px; }
  .site-header { min-height: 66px; padding: 8px 14px; }
  .site-header .brand img { width: 40px; height: 40px; }
  .header-cta { display: none; }
  .section-shell { width: min(100% - 28px, 1200px); }
  section.section-shell, .focus, .features, .access, .privacy, .faq { padding-block: 70px; }
  .hero-grid { gap: 40px; padding-block: 46px 66px; }
  .eyebrow { font-size: .64rem; }
  .app-name img { width: 56px; height: 56px; }
  .hero h1 { font-size: clamp(2.65rem, 14vw, 4.1rem); }
  .hero-lead { font-size: 1rem; }
  .hero-facts { display: grid; grid-template-columns: 1fr 1fr; }
  .hero-facts span { text-align: center; padding-inline: 7px; }
  .hero-screens { gap: 5px; }
  .hero-screen { border-radius: 12px; }
  .screen-left { transform: rotate(-2deg) translateY(13px); }
  .screen-center { transform: scale(1.04); }
  .screen-right { transform: rotate(2deg) translateY(13px); }
  .focus-grid { gap: 28px; }
  .split-heading { display: block; }
  .split-heading .play-badge { margin-top: 18px; }
  .feature-grid, .topic-list { grid-template-columns: 1fr; }
  .gallery { grid-template-columns: repeat(8, minmax(218px, 75vw)); }
  .topics { width: calc(100% - 12px); border-radius: 24px; }
  .privacy { width: calc(100% - 12px); }
  .privacy-panel { border-radius: 24px; }
  .footer-cta, .footer-main, .disclaimer { align-items: flex-start; flex-direction: column; }
  .footer-links { gap: 16px 22px; }
  .disclaimer p:last-child { white-space: normal; }
  .mobile-install {
    position: fixed;
    right: 10px;
    bottom: 8px;
    left: 10px;
    z-index: 60;
    display: flex;
    justify-content: center;
    border: 1px solid rgba(255,255,255,.18);
    border-radius: 15px;
    background: rgba(6,24,39,.97);
    box-shadow: 0 16px 40px rgba(3,20,33,.34);
    backdrop-filter: blur(16px);
  }
  .mobile-install img { width: 164px; }
}

@media (max-width: 340px) {
  .brand span { font-size: .9rem; }
  .hero h1 { font-size: 2.55rem; }
  .hero-facts { grid-template-columns: 1fr; }
  .gallery { grid-template-columns: repeat(8, minmax(210px, 78vw)); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    scroll-behavior: auto !important;
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
}
