:root {
  --bg: #050505;
  --bg-0: #000000;
  --surface: #0d0e10;
  --surface-2: #141518;
  --surface-3: #1b1d21;
  --card: #111111;
  --card-2: #161616;
  --line: #1E1E1E;
  --line-2: #2A2A2A;
  --line-soft: rgba(255,255,255,0.09);
  --text: #FFFFFF;
  --muted: #777777;
  --subtle: #444444;
  --mint: #00FFCC;
  --mint-track: #15e6c3;
  --cyan: #00c9d6;
  --mint-text: #060606;
  --mint-deep: #04201b;
  --glow: rgba(21,230,195,0.45);
  --text-soft: rgba(255,255,255,0.74);
  --text-faint: rgba(255,255,255,0.62);
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-spring: cubic-bezier(0.34, 1.4, 0.64, 1);
  --shadow-card: 0 1px 0 rgba(255,255,255,0.04) inset, 0 24px 60px rgba(0,0,0,0.34);
  --shadow-lift: 0 30px 80px rgba(0,0,0,0.52), 0 0 0 1px rgba(21,230,195,0.08), 0 0 60px rgba(21,230,195,0.10);
  --max: 1180px;
  --header: 76px;
  --r-sm: 14px;
  --r-md: 20px;
  --r-lg: 28px;
  --r-xl: 36px;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background:
    radial-gradient(900px 520px at 78% -8%, rgba(21,230,195,0.16), transparent 72%),
    radial-gradient(720px 520px at -12% 18%, rgba(0,201,214,0.10), transparent 70%),
    var(--bg);
  color: var(--text);
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

::selection { background: rgba(21,230,195,0.24); color: #fff; }
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; transition: color 160ms ease; }
img { max-width: 100%; display: block; }
button, input, textarea, select { font: inherit; }
a, button { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 2px solid var(--mint); outline-offset: 4px; }

.container { width: min(var(--max), calc(100% - 40px)); margin: 0 auto; }
.section { padding: clamp(80px, 10vw, 140px) 0; position: relative; }
.section-tight { padding: clamp(60px, 8vw, 100px) 0; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 16px;
  color: var(--mint-track);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.24em;
  text-transform: uppercase;
}
.eyebrow::before {
  content: "";
  width: 26px;
  height: 1.5px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--mint), rgba(21,230,195,0.18));
}
.section h2,
.feature-hero h1,
.home-hero h1 {
  margin: 0;
  letter-spacing: -0.025em;
  line-height: 1.02;
}
.section h2 {
  max-width: 780px;
  font-size: clamp(2.05rem, 5vw, 4.6rem);
  font-weight: 900;
  text-wrap: balance;
}
.section-lead {
  max-width: 690px;
  margin: 22px 0 0;
  color: var(--text-soft);
  font-size: clamp(1.05rem, 1.7vw, 1.22rem);
  line-height: 1.7;
}
.center { text-align: center; }
.center .section-lead,
.center h2 { margin-left: auto; margin-right: auto; }

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 40;
  height: var(--header);
  border-bottom: 1px solid transparent;
  background: linear-gradient(180deg, rgba(0,0,0,0.58), rgba(0,0,0,0.16));
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  transition: background 220ms var(--ease-out), border-color 220ms var(--ease-out);
}
.site-header.is-scrolled {
  background: rgba(5,5,5,0.88);
  border-color: var(--line-soft);
  box-shadow: 0 12px 40px rgba(0,0,0,0.35);
}
.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  min-width: max-content;
  font-weight: 900;
  letter-spacing: 0.22em;
}
.brand img {
  width: 38px;
  height: 38px;
  border-radius: 12px;
}
.brand span { font-size: 1rem; }
.main-nav {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2vw, 28px);
  color: rgba(255,255,255,0.66);
  font-size: 0.92rem;
  font-weight: 750;
}
.main-nav a:hover,
.footer a:hover { color: var(--mint); }
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line-soft);
  border-radius: 14px;
  background: rgba(255,255,255,0.04);
  color: var(--text);
  cursor: pointer;
  transition: border-color 180ms var(--ease-out), background 180ms var(--ease-out);
}
.menu-toggle:hover { border-color: rgba(21,230,195,0.4); background: rgba(21,230,195,0.06); }
.menu-toggle span,
.menu-toggle::before,
.menu-toggle::after {
  content: "";
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  border-radius: 999px;
  background: currentColor;
  transition: transform 220ms var(--ease-out), opacity 180ms ease;
}
.menu-toggle[aria-expanded="true"] span { opacity: 0; }
.menu-toggle[aria-expanded="true"]::before { transform: translateY(6px) rotate(45deg); }
.menu-toggle[aria-expanded="true"]::after { transform: translateY(-6px) rotate(-45deg); }

.btn {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border-radius: 999px;
  border: 1px solid var(--line-soft);
  padding: 0 18px;
  font-weight: 850;
  white-space: nowrap;
  transition: transform 220ms var(--ease-out), border-color 220ms var(--ease-out), background 220ms var(--ease-out), box-shadow 220ms var(--ease-out);
}
.btn:hover { transform: translateY(-2px); border-color: rgba(21,230,195,0.42); }
.btn:active { transform: translateY(0) scale(0.98); }
.btn-primary {
  background: var(--mint);
  color: var(--mint-text);
  border-color: transparent;
  box-shadow: 0 0 0 1px rgba(21,230,195,0.18), 0 0 40px rgba(0,255,204,0.20);
}
.btn-primary:hover { box-shadow: 0 0 0 1px rgba(21,230,195,0.30), 0 10px 54px rgba(0,255,204,0.38); }
.btn-ghost { background: rgba(255,255,255,0.05); color: var(--text); }
.btn-small { min-height: 42px; padding: 0 15px; font-size: 0.9rem; }

.store-row { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.store-badge {
  min-width: 154px;
  min-height: 54px;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
  border: 1px solid var(--line-soft);
  border-radius: 16px;
  background: rgba(255,255,255,0.045);
  color: var(--text);
  transition: transform 220ms var(--ease-out), border-color 220ms var(--ease-out), box-shadow 220ms var(--ease-out);
}
.store-badge:hover { transform: translateY(-2px); border-color: rgba(21,230,195,0.35); box-shadow: 0 14px 40px rgba(0,0,0,0.4); }
.store-badge svg { width: 24px; height: 24px; flex: 0 0 auto; }
.store-badge small { display: block; color: var(--muted); font-size: 0.66rem; line-height: 1.1; }
.store-badge strong { display: block; font-size: 1rem; line-height: 1.1; }

.home-hero {
  min-height: 100svh;
  padding: calc(var(--header) + 52px) 0 56px;
  display: grid;
  align-items: center;
  position: relative;
  overflow: hidden;
}
.home-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(0,0,0,0.96) 0%, rgba(0,0,0,0.76) 40%, rgba(0,0,0,0.14) 100%),
    linear-gradient(180deg, rgba(0,0,0,0.10), rgba(5,5,5,0.96)),
    url("images/yam20.jpg") right center / min(55vw, 740px) auto no-repeat;
  z-index: -2;
}
.home-hero::after {
  content: "";
  position: absolute;
  inset: auto -12% 0 -12%;
  height: 40%;
  background: radial-gradient(600px 220px at 62% 40%, rgba(21,230,195,0.18), transparent 70%);
  z-index: -1;
  pointer-events: none;
  animation: heroGlow 8s var(--ease-out) infinite alternate;
}
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 420px);
  gap: clamp(28px, 6vw, 76px);
  align-items: center;
}
.home-hero h1 {
  max-width: 780px;
  font-size: clamp(3.1rem, 8vw, 7rem);
  font-weight: 950;
  letter-spacing: -0.03em;
}
.hero-copy { max-width: 710px; }
.hero-copy p.description {
  max-width: 650px;
  margin: 26px 0 0;
  color: rgba(255,255,255,0.72);
  font-size: clamp(1.08rem, 1.8vw, 1.34rem);
  line-height: 1.6;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin: 36px 0 24px; }
.trust-row {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-top: 36px;
  max-width: 760px;
}
.trust-row span,
.tag {
  min-height: 38px;
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--line-soft);
  border-radius: 999px;
  padding: 8px 13px;
  color: rgba(255,255,255,0.70);
  background: rgba(255,255,255,0.035);
  font-size: 0.84rem;
  font-weight: 700;
}
.phone-stack {
  position: relative;
  min-height: 560px;
  display: grid;
  place-items: center;
}
.phone {
  position: relative;
  width: min(330px, 76vw);
  aspect-ratio: 1320 / 2868;
  border: 1px solid rgba(255,255,255,0.16);
  border-radius: 46px;
  padding: 11px;
  background: linear-gradient(180deg, #232529, #07080a);
  box-shadow: 0 40px 100px rgba(0,0,0,0.6), 0 1px 0 rgba(255,255,255,0.06) inset, 0 0 70px rgba(21,230,195,0.16);
  overflow: hidden;
  animation: floaty 7s var(--ease-out) infinite alternate;
}
.phone img {
  width: 100%;
  height: 100%;
  border-radius: 36px;
  object-fit: cover;
  object-position: top center;
}
.floating-card {
  position: absolute;
  width: min(244px, 58vw);
  border: 1px solid rgba(21,230,195,0.28);
  border-radius: 22px;
  padding: 16px;
  background: rgba(13,14,16,0.82);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 24px 60px rgba(0,0,0,0.36), 0 0 30px rgba(21,230,195,0.08);
  animation: floaty 6s var(--ease-out) infinite alternate;
}
.floating-card.two { animation-delay: -3s; }
.floating-card.one { left: -10px; top: 13%; }
.floating-card.two { right: -20px; bottom: 14%; }
.floating-card strong { display: block; font-size: 0.96rem; }
.floating-card span { display: block; color: var(--muted); font-size: 0.82rem; margin-top: 4px; }

.problem-shell {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: clamp(28px, 5vw, 70px);
  align-items: center;
}
.orbit {
  min-height: 520px;
  position: relative;
  display: grid;
  place-items: center;
}
.orbit::before {
  content: "";
  position: absolute;
  inset: 8%;
  border: 1px solid rgba(21,230,195,0.16);
  border-radius: 44% 56% 50% 50%;
  background:
    linear-gradient(90deg, transparent 48%, rgba(21,230,195,0.17) 49%, rgba(21,230,195,0.17) 51%, transparent 52%),
    radial-gradient(circle at 50% 50%, rgba(21,230,195,0.10), transparent 56%);
}
.orbit-core {
  position: relative;
  z-index: 1;
  width: 150px;
  height: 150px;
  display: grid;
  place-items: center;
  border-radius: 34px;
  border: 1px solid rgba(255,255,255,0.12);
  background: linear-gradient(180deg, var(--surface-2), var(--bg-0));
  box-shadow: 0 20px 60px rgba(0,0,0,0.45), 0 0 40px rgba(21,230,195,0.10);
}
.orbit-core img { width: 84px; height: 84px; border-radius: 24px; }
.orbit-card {
  position: absolute;
  z-index: 2;
  min-width: 136px;
  border: 1px solid var(--line-soft);
  border-radius: 18px;
  padding: 13px 15px;
  background: rgba(20,21,24,0.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  color: rgba(255,255,255,0.78);
  font-weight: 800;
  box-shadow: 0 16px 40px rgba(0,0,0,0.3);
}
.oc-1 { left: 0; top: 14%; }
.oc-2 { right: 4%; top: 8%; }
.oc-3 { left: 7%; bottom: 19%; }
.oc-4 { right: 0; bottom: 22%; }
.oc-5 { left: 39%; top: 0; }
.oc-6 { left: 39%; bottom: 0; }

.feature-modules {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  margin-top: 48px;
}
.module-card,
.audience-card,
.plan-card,
.function-card,
.security-card,
.duo-card {
  border: 1px solid var(--line-soft);
  border-radius: var(--r-lg);
  background: linear-gradient(180deg, rgba(255,255,255,0.06), rgba(255,255,255,0.02));
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: transform 320ms var(--ease-out), border-color 320ms var(--ease-out), box-shadow 320ms var(--ease-out), background 320ms var(--ease-out);
}
.module-card { position: relative; min-height: 520px; display: flex; flex-direction: column; }
.module-card:hover,
.function-card:hover,
.duo-card:hover {
  transform: translateY(-4px);
  border-color: rgba(21,230,195,0.22);
  box-shadow: var(--shadow-lift);
}
.module-media {
  position: relative;
  overflow: hidden;
  background: var(--surface);
  aspect-ratio: 2 / 3;
}
.module-card:nth-child(2) .module-media { aspect-ratio: 3 / 2; }
.module-card:nth-child(3) .module-media { aspect-ratio: 3 / 2; }
.module-card:nth-child(4) .module-media { aspect-ratio: 2 / 3; }
.module-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 35%;
  transition: transform 800ms var(--ease-out);
}
.module-card:nth-child(2) .module-media img { object-position: center center; }
.module-card:nth-child(4) .module-media img { object-position: center 35%; }
.module-card:hover .module-media img { transform: scale(1.03); }
.module-media .shot { object-fit: contain; padding: 24px; background: radial-gradient(circle at 50% 20%, rgba(21,230,195,0.14), transparent 58%), #050505; }
.module-body { padding: clamp(24px, 3.2vw, 36px); display: flex; flex-direction: column; flex: 1; }
.module-card .tag-row { margin-top: auto; padding-top: 26px; }
.module-card h3,
.function-card h2,
.plan-card h3,
.duo-card h3 {
  margin: 0;
  font-size: clamp(1.42rem, 2.5vw, 2.05rem);
  line-height: 1.12;
  letter-spacing: -0.02em;
  text-wrap: balance;
}
.module-card p,
.function-card p,
.plan-card p,
.duo-card p {
  color: rgba(255,255,255,0.66);
  margin: 14px 0 0;
  line-height: 1.65;
}
.tag-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 24px; }
.tag { min-height: 32px; font-size: 0.78rem; padding: 6px 10px; border-color: rgba(21,230,195,0.16); background: rgba(21,230,195,0.05); color: rgba(255,255,255,0.78); }
.note { color: var(--muted); font-size: 0.86rem; margin-top: 14px; }

.premium {
  border-color: rgba(21,230,195,0.30);
  background:
    radial-gradient(620px 240px at 18% 0%, rgba(21,230,195,0.12), transparent 62%),
    linear-gradient(180deg, rgba(255,255,255,0.06), rgba(255,255,255,0.02));
  box-shadow: var(--shadow-card), 0 0 60px rgba(21,230,195,0.10);
}
.premium::before {
  content: "";
  position: absolute;
  top: 0;
  left: 14%;
  right: 14%;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, transparent, var(--mint), transparent);
  opacity: 0.9;
  pointer-events: none;
}
.module-card.premium:hover,
.function-card.premium:hover,
.duo-card.premium:hover {
  border-color: rgba(21,230,195,0.46);
  box-shadow: 0 32px 90px rgba(0,0,0,0.56), 0 0 0 1px rgba(21,230,195,0.12), 0 0 80px rgba(21,230,195,0.18);
}

.duo-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  margin-top: 48px;
}
.duo-card {
  position: relative;
  padding: clamp(32px, 5vw, 54px);
}
.duo-card h3 { font-size: clamp(1.6rem, 3vw, 2.3rem); line-height: 1.1; }
.duo-card p { font-size: clamp(1.05rem, 1.6vw, 1.22rem); }

.audience-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  margin-top: 48px;
  align-items: start;
}
.plan-grid,
.function-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin-top: 48px;
}
.audience-card {
  position: relative;
  display: flex;
  align-items: flex-end;
  isolation: isolate;
  aspect-ratio: 3 / 2;
}
.audience-card:nth-child(1) {
  aspect-ratio: 2 / 3;
  grid-row: 1 / span 2;
}
.audience-card img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
  z-index: -2;
  transition: transform 800ms var(--ease-out);
}
.audience-card:nth-child(1) img { object-position: center 25%; }
.audience-card:nth-child(2) img { object-position: center center; }
.audience-card:nth-child(3) img { object-position: center center; }
.audience-card:hover img { transform: scale(1.05); }
.audience-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0.06), rgba(0,0,0,0.86));
  z-index: -1;
}
.audience-card div { padding: 28px; }
.audience-card h3 { margin: 0; font-size: 1.55rem; letter-spacing: -0.02em; }
.audience-card p { margin: 8px 0 0; color: rgba(255,255,255,0.70); }

.split-panel {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  margin-top: 48px;
  overflow: hidden;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-xl);
  background: var(--line-soft);
  box-shadow: var(--shadow-card);
}
.split-panel > div {
  padding: clamp(28px, 4vw, 48px);
  background: rgba(17,17,17,0.78);
}
.split-panel h3 { margin: 0 0 22px; font-size: clamp(1.5rem, 3vw, 2.6rem); letter-spacing: -0.02em; }
.check-list { display: grid; gap: 13px; margin: 0; padding: 0; list-style: none; }
.check-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  color: rgba(255,255,255,0.72);
}
.check-list li::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--mint);
  box-shadow: 0 0 18px rgba(0,255,204,0.36);
}

.screenshot-rail {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: clamp(24px, 5vw, 60px);
  align-items: center;
  margin-top: 48px;
}
.screen-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}
.screen-card {
  border: 1px solid rgba(255,255,255,0.10);
  border-radius: 26px;
  background: rgba(255,255,255,0.04);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: transform 320ms var(--ease-out), border-color 320ms var(--ease-out), box-shadow 320ms var(--ease-out);
}
.screen-card:hover {
  transform: translateY(-4px);
  border-color: rgba(21,230,195,0.24);
  box-shadow: var(--shadow-lift);
}
.screen-card img { width: 100%; height: 360px; object-fit: cover; object-position: top center; transition: transform 700ms var(--ease-out); }
.screen-card:hover img { transform: scale(1.04); }
.screen-card.wide img { height: 240px; }
.screen-card p { margin: 0; padding: 16px 18px; color: rgba(255,255,255,0.80); font-weight: 800; font-size: 0.95rem; letter-spacing: -0.01em; }
.placeholder {
  min-height: 360px;
  display: grid;
  place-items: center;
  padding: 24px;
  text-align: center;
  background:
    linear-gradient(135deg, rgba(21,230,195,0.10), transparent 38%),
    repeating-linear-gradient(45deg, rgba(255,255,255,0.035) 0 1px, transparent 1px 14px),
    var(--surface);
}
.placeholder strong { display: block; margin-bottom: 6px; }
.placeholder span { color: var(--muted); font-size: 0.9rem; }

.plan-card { padding: clamp(26px, 3.5vw, 40px); }
.plan-card .label { color: var(--mint); font-weight: 900; letter-spacing: 0.16em; font-size: 0.76rem; text-transform: uppercase; }
.plan-card ul { margin: 24px 0 0; padding: 0; list-style: none; display: grid; gap: 11px; color: rgba(255,255,255,0.68); }
.plan-card:hover { transform: translateY(-4px); border-color: rgba(21,230,195,0.22); box-shadow: var(--shadow-lift); }
.plan-note {
  margin-top: 22px;
  color: var(--muted);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-md);
  padding: 16px 18px;
  background: rgba(255,255,255,0.035);
}

.about-band,
.cta-band {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-xl);
  background: var(--surface);
  box-shadow: var(--shadow-card);
}
.about-band { padding: clamp(32px, 5vw, 58px); margin-top: 48px; }
.about-band p { max-width: 760px; color: rgba(255,255,255,0.70); margin: 14px 0 0; }
.cta-band {
  min-height: clamp(480px, 44vw, 600px);
  display: grid;
  align-items: end;
  padding: clamp(32px, 6vw, 68px);
  isolation: isolate;
}
.cta-band::before {
  content: "";
  position: absolute;
  inset: -40px;
  background: url("images/11GSLOGODSC4449.jpg") center / cover no-repeat;
  filter: blur(30px) saturate(1.15);
  transform: scale(1.06);
  opacity: 0.5;
  z-index: -3;
  pointer-events: none;
}
.cta-band img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  z-index: -2;
}
.cta-band::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(0,0,0,0.94), rgba(0,0,0,0.38)), linear-gradient(180deg, transparent, rgba(0,0,0,0.74));
  z-index: -1;
}
.cta-band h2 { max-width: 720px; text-wrap: balance; }
.cta-band p { max-width: 640px; color: rgba(255,255,255,0.72); }

.feature-hero {
  padding: calc(var(--header) + 76px) 0 76px;
  background:
    radial-gradient(680px 300px at 64% 0%, rgba(21,230,195,0.16), transparent 72%),
    var(--bg-0);
}
.feature-hero h1 {
  max-width: 900px;
  font-size: clamp(2.3rem, 9vw, 6.6rem);
  font-weight: 950;
  letter-spacing: -0.03em;
}
.feature-nav {
  position: sticky;
  top: var(--header);
  z-index: 20;
  border-block: 1px solid var(--line-soft);
  background: rgba(5,5,5,0.88);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}
.feature-nav .container {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-block: 14px;
  scrollbar-width: none;
}
.feature-nav .container::-webkit-scrollbar { display: none; }
.feature-nav a {
  flex: 0 0 auto;
  border: 1px solid var(--line-soft);
  border-radius: 999px;
  padding: 9px 14px;
  color: rgba(255,255,255,0.70);
  font-size: 0.86rem;
  font-weight: 800;
  transition: color 180ms var(--ease-out), border-color 180ms var(--ease-out), background 180ms var(--ease-out);
}
.feature-nav a:hover { border-color: rgba(21,230,195,0.42); color: var(--mint); background: rgba(21,230,195,0.07); }
.function-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.function-card { position: relative; padding: clamp(28px, 4vw, 44px); scroll-margin-top: calc(var(--header) + 78px); }
.function-card .num {
  display: inline-grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(21,230,195,0.20), rgba(21,230,195,0.05));
  border: 1px solid rgba(21,230,195,0.24);
  color: var(--mint);
  font-weight: 900;
  margin-bottom: 22px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.3);
}
.security-card { margin-top: 18px; padding: clamp(28px, 4vw, 48px); }

.function-card .function-sub {
  margin: 14px 0 0;
  color: var(--mint);
  font-weight: 850;
  font-size: 1.05rem;
}
.feature-list {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 11px;
  color: rgba(255,255,255,0.72);
}
.feature-list li { padding-left: 20px; position: relative; }
.feature-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--mint);
  box-shadow: 0 0 16px rgba(0,255,204,0.32);
}

.footer {
  position: relative;
  border-top: 1px solid var(--line-soft);
  padding: 44px 0 60px;
  color: rgba(255,255,255,0.58);
}
.footer::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.16), transparent);
}
.footer-grid {
  display: grid;
  grid-template-columns: minmax(220px, 1fr) 2fr;
  gap: 32px;
}
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 22px;
  justify-content: flex-end;
}
.footer small { display: block; margin-top: 14px; color: rgba(255,255,255,0.38); }

@keyframes floaty {
  from { transform: translateY(0); }
  to { transform: translateY(-9px); }
}
@keyframes heroGlow {
  from { opacity: 0.55; }
  to { opacity: 1; }
}

[data-reveal] {
  opacity: 0;
  transform: translateY(22px) scale(0.99);
  filter: blur(8px);
  transition: opacity 700ms var(--ease-out), transform 700ms var(--ease-out), filter 700ms var(--ease-out);
  transition-delay: 0s;
}
[data-reveal].is-visible {
  opacity: 1;
  transform: none;
  filter: none;
}
.feature-modules .module-card:nth-child(2) { transition-delay: 70ms; }
.feature-modules .module-card:nth-child(3) { transition-delay: 140ms; }
.feature-modules .module-card:nth-child(4) { transition-delay: 210ms; }
.audience-grid .audience-card:nth-child(2) { transition-delay: 90ms; }
.audience-grid .audience-card:nth-child(3) { transition-delay: 180ms; }
.plan-grid .plan-card:nth-child(2) { transition-delay: 90ms; }
.plan-grid .plan-card:nth-child(3) { transition-delay: 180ms; }
.function-grid .function-card:nth-child(n) { transition-delay: 0ms; }
.function-grid .function-card:nth-child(2) { transition-delay: 35ms; }
.function-grid .function-card:nth-child(3) { transition-delay: 70ms; }
.function-grid .function-card:nth-child(4) { transition-delay: 105ms; }
.function-grid .function-card:nth-child(5) { transition-delay: 140ms; }
.function-grid .function-card:nth-child(6) { transition-delay: 175ms; }
.function-grid .function-card:nth-child(7) { transition-delay: 210ms; }
.function-grid .function-card:nth-child(8) { transition-delay: 245ms; }
.function-grid .function-card:nth-child(9) { transition-delay: 280ms; }
.function-grid .function-card:nth-child(10) { transition-delay: 315ms; }
.function-grid .function-card:nth-child(11) { transition-delay: 350ms; }
.function-grid .function-card:nth-child(12) { transition-delay: 385ms; }
.duo-grid .duo-card:nth-child(2) { transition-delay: 110ms; }
.screen-grid .screen-card:nth-child(2) { transition-delay: 60ms; }
.screen-grid .screen-card:nth-child(3) { transition-delay: 120ms; }
.screen-grid .screen-card:nth-child(4) { transition-delay: 180ms; }
.screen-grid .screen-card:nth-child(5) { transition-delay: 240ms; }
.screen-grid .screen-card:nth-child(6) { transition-delay: 300ms; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  [data-reveal] { opacity: 1; transform: none; filter: none; }
}

@media (max-width: 1060px) {
  .main-nav {
    position: fixed;
    top: var(--header);
    left: 16px;
    right: 16px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 10px;
    border: 1px solid var(--line-soft);
    border-radius: 22px;
    background: rgba(13,14,16,0.96);
    box-shadow: 0 30px 80px rgba(0,0,0,0.52);
  }
  .main-nav.is-open { display: flex; }
  .main-nav a { min-height: 46px; display: flex; align-items: center; padding: 0 14px; border-radius: 14px; }
  .main-nav a:hover { background: rgba(255,255,255,0.04); }
  .menu-toggle { display: block; }
  .hero-grid,
  .problem-shell,
  .screenshot-rail { grid-template-columns: 1fr; }
  .phone-stack { min-height: 500px; }
  .home-hero::before {
    background:
      linear-gradient(180deg, rgba(0,0,0,0.72), rgba(0,0,0,0.96) 78%),
      url("images/yam20.jpg") right top / min(86vw, 520px) auto no-repeat;
    opacity: 0.92;
  }
  .trust-row { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 820px) {
  :root { --header: 68px; }
  .container { width: min(100% - 28px, var(--max)); }
  .section { padding: 68px 0; }
  .section-tight { padding: 52px 0; }
  .brand img { width: 34px; height: 34px; border-radius: 11px; }
  .brand span { font-size: 0.92rem; }
  .header-actions .btn-small { padding: 0 12px; min-height: 40px; }
  .home-hero { min-height: auto; padding-top: calc(var(--header) + 36px); }
  .home-hero h1,
  .feature-hero h1 { font-size: clamp(2.1rem, 10vw, 4.6rem); }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { width: 100%; }
  .store-row { align-items: stretch; }
  .store-badge { flex: 1 1 150px; }
  .trust-row,
  .feature-modules,
  .audience-grid,
  .plan-grid,
  .function-grid,
  .screen-grid,
  .split-panel,
  .duo-grid,
  .footer-grid { grid-template-columns: 1fr; }
  .phone-stack { min-height: 430px; }
  .phone { width: min(282px, 76vw); border-radius: 40px; }
  .phone img { border-radius: 31px; }
  .floating-card { position: relative; width: 100%; left: auto !important; right: auto !important; top: auto !important; bottom: auto !important; margin-top: 12px; }
  .orbit { min-height: 560px; }
  .orbit-card { position: relative; inset: auto !important; width: 100%; }
  .orbit { display: grid; grid-template-columns: 1fr; gap: 10px; }
  .orbit::before, .orbit-core { display: none; }
  .module-card { min-height: auto; }
  .module-body { padding: clamp(24px, 5vw, 36px); }
  .audience-card { min-height: 0; }
  .audience-card:nth-child(1) { grid-row: auto; }
  .screen-card img { height: 300px; }
  .screen-card.wide img { height: 200px; }
  .footer-links { justify-content: flex-start; }
}

@media (max-width: 430px) {
  .container { width: min(100% - 24px, var(--max)); }
  .header-actions .btn-small { font-size: 0; width: 48px; padding: 0; }
  .header-actions .btn-small::before { content: "App"; font-size: 0.86rem; }
  .trust-row { grid-template-columns: 1fr; }
  .section { padding: 60px 0; }
  .module-media .shot { padding: 18px; }
  .screen-card img { height: 260px; }
  .screen-card.wide img { height: 180px; }
}