/* ==========================================================================
   Peptide Tracker — marketing site
   Design tokens are copied from docs/03_设计/design.md §2 (C 表 真值来源:
   glp1/glp1/Assets.xcassets/*.colorset/Contents.json). Do not invent values.
   ========================================================================== */

/* ---------------------------------- tokens -------------------------------- */
:root {
  /* ---- C 表：界面通用 Token ---- */
  --accent: #6D5BE0;          /* AccentPrimary */
  --accent-tap: #5B49CF;      /* AccentTap */
  --accent-soft: #EEEAFD;     /* AccentSoft */
  --on-accent: #FFFFFF;       /* OnAccentPrimary */
  --bg: #F5F4FC;              /* BackgroundPrimary */
  --surface: #FFFFFF;         /* SurfacePrimary */
  --text: #14161A;            /* TextPrimary */
  --text-2: #4A4E57;          /* TextSecondary */
  --text-3: #8A8F9A;          /* TextTertiary */
  --hairline: rgba(20, 22, 26, 0.08);
  --success: #12805C;
  --success-soft: #E3F3EC;
  --warning: #8A5A00;
  --warning-soft: #FCF0D9;
  --water: #12B3C4;

  /* ---- Hero 渐变（全站唯一允许的渐变，与应用同源） ---- */
  --hero-top: #7E63F2;
  --hero-mid: #5B49CF;
  --hero-bottom: #473BAE;
  --hero-glow: #F3A8F0;
  --hero-pearl: #FFFFFF;
  --hero-pearl-soft: #EEEAFD;
  --hero-on-pearl: #3F32A8;

  /* ---- 形状（design.md §2.2 三型） ---- */
  --r-card: 16px;
  --r-input: 11px;
  --r-pill: 999px;

  /* ---- 间距（4pt 基准，8pt 网格为主） ---- */
  --s-1: 4px;  --s-2: 8px;  --s-3: 12px; --s-4: 16px;
  --s-5: 20px; --s-6: 24px; --s-8: 32px; --s-12: 48px; --s-16: 64px;

  --shadow-card: 0 2px 10px rgba(20, 22, 26, 0.06);
  --shadow-float: 0 24px 48px -24px rgba(46, 33, 110, 0.45);

  --wrap: 1160px;
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text",
          "Segoe UI", Inter, "Helvetica Neue", Arial, "PingFang SC", sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --accent: #B6A6F7;
    --accent-tap: #C9BDFA;
    --accent-soft: #262040;
    --on-accent: #0E1014;
    --bg: #0F0E16;
    --surface: #191C22;
    --text: #F4F5F7;
    --text-2: #C2C6CE;
    --text-3: #8A8F9A;
    --hairline: rgba(244, 245, 247, 0.10);
    --success: #5FD3A6;
    --success-soft: #17302A;
    --warning: #F2C879;
    --warning-soft: #332A16;
    --water: #4FD1DD;

    --hero-top: #6A52D6;
    --hero-mid: #4A3BB0;
    --hero-bottom: #352B86;
    --hero-glow: #B777D6;
    --hero-pearl: #F2EEFF;
    --hero-pearl-soft: #E4DCFB;

    --shadow-card: 0 2px 10px rgba(0, 0, 0, 0.4);
    --shadow-float: 0 24px 48px -24px rgba(0, 0, 0, 0.7);
  }
}

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

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; }
ul { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4 { margin: 0; line-height: 1.1; letter-spacing: -0.02em; font-weight: 800; }
p { margin: 0; }

:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
  border-radius: 6px;
}

.skip {
  position: absolute; left: -9999px; top: 0; z-index: 200;
  background: var(--surface); color: var(--text);
  padding: 12px 20px; border-radius: var(--r-input);
}
.skip:focus { left: 16px; top: 16px; }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* --------------------------------- layout --------------------------------- */
.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 var(--s-6);
}

section { position: relative; }
.section { padding: var(--s-16) 0; }
.section--tight { padding: var(--s-12) 0; }

.section-head { max-width: 720px; margin-bottom: var(--s-8); }
.section-head--center { margin-left: auto; margin-right: auto; text-align: center; }

.eyebrow {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--s-3);
}
.eyebrow--onDark { color: rgba(255, 255, 255, 0.78); }

h2 { font-size: clamp(1.55rem, 2.9vw, 2.05rem); }
h3 { font-size: 1.13rem; font-weight: 750; }

.lead {
  margin-top: var(--s-3);
  font-size: clamp(.97rem, 1.2vw, 1.06rem);
  color: var(--text-2);
  max-width: 58ch;
}
.section-head--center .lead { margin-left: auto; margin-right: auto; }

/* ---------------------------------- nav ----------------------------------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  transition: background-color .25s ease, box-shadow .25s ease, border-color .25s ease;
  border-bottom: 1px solid transparent;
}
.nav__inner {
  display: flex;
  align-items: center;
  gap: var(--s-6);
  height: 68px;
}
.nav__brand {
  display: flex; align-items: center; gap: 10px;
  font-weight: 750; font-size: 1.02rem; letter-spacing: -0.01em;
  color: #fff;
}
.nav__brand img { width: 34px; height: 34px; border-radius: 9px; }

.nav__links {
  display: flex; align-items: center; gap: var(--s-6);
  margin-left: auto;
}
.nav__links a {
  font-size: .95rem; font-weight: 550;
  color: rgba(255, 255, 255, 0.85);
  transition: color .18s ease;
  padding: 6px 2px;
}
.nav__links a:hover { color: #fff; }

.nav__cta { display: flex; align-items: center; gap: var(--s-3); }

/* nav on light background (scrolled) */
.nav.is-scrolled {
  background: var(--surface);
  border-bottom-color: var(--hairline);
  box-shadow: var(--shadow-card);
}
.nav.is-scrolled .nav__brand { color: var(--text); }
.nav.is-scrolled .nav__links a { color: var(--text-2); }
.nav.is-scrolled .nav__links a:hover { color: var(--accent); }
.nav.is-scrolled .nav__toggle span { background: var(--text); }

.nav__toggle {
  display: none;
  width: 44px; height: 44px; margin-left: auto;
  background: none; border: 0; cursor: pointer;
  flex-direction: column; justify-content: center; align-items: center; gap: 5px;
}
.nav__toggle span {
  display: block; width: 20px; height: 2px; border-radius: 2px;
  background: #fff; transition: transform .2s ease, opacity .2s ease;
}
.nav.is-open .nav__toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav.is-open .nav__toggle span:nth-child(2) { opacity: 0; }
.nav.is-open .nav__toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* --------------------------------- buttons -------------------------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 52px; padding: 0 26px;
  border-radius: var(--r-card);
  border: 1px solid transparent;
  font-size: 1rem; font-weight: 700;
  cursor: pointer;
  transition: transform .15s ease, background-color .18s ease,
              border-color .18s ease, color .18s ease;
  white-space: nowrap;
}
.btn:active { transform: scale(.985); }

.btn--primary { background: var(--accent); color: var(--on-accent); }
.btn--primary:hover { background: var(--accent-tap); }

/* app 同款「珍珠」主按钮（Hero 内专用） */
.btn--pearl {
  background: var(--hero-pearl);
  color: var(--hero-on-pearl);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.9);
}
.btn--pearl:hover { background: var(--hero-pearl-soft); }

.btn--outline-light {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.45);
}
.btn--outline-light:hover { border-color: #fff; background: rgba(255, 255, 255, 0.12); }

.btn--ghost {
  background: var(--surface);
  color: var(--accent);
  border-color: var(--hairline);
}
.btn--ghost:hover { border-color: var(--accent); }

.btn--sm { min-height: 40px; padding: 0 18px; font-size: .9rem; border-radius: var(--r-pill); }

.nav:not(.is-scrolled) .nav__cta .btn {
  background: var(--hero-pearl);
  color: var(--hero-on-pearl);
  border-color: transparent;
}
.nav.is-scrolled .nav__cta .btn {
  background: var(--accent);
  color: var(--on-accent);
}

/* --------------------------------- chips ---------------------------------- */
.chips { display: flex; flex-wrap: wrap; gap: var(--s-2); }
.chips li {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 7px 14px;
  border-radius: var(--r-pill);
  background: var(--accent-soft);
  color: var(--accent);
  font-size: .86rem; font-weight: 650;
  letter-spacing: -0.005em;
}
.chips--onDark li {
  background: rgba(255, 255, 255, 0.16);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.22);
}

/* ---------------------------------- hero ---------------------------------- */
.hero {
  margin-top: -68px;
  padding-top: 68px;
  background: linear-gradient(155deg, var(--hero-top) 0%, var(--hero-mid) 52%, var(--hero-bottom) 100%);
  color: #fff;
  overflow: hidden;
  border-bottom-left-radius: 40px;
  border-bottom-right-radius: 40px;
}
.hero__glow {
  position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(52% 40% at 78% 12%, rgba(243, 168, 240, 0.42), transparent 70%),
    radial-gradient(46% 36% at 8% 78%, rgba(255, 255, 255, 0.16), transparent 72%);
}
.hero__inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  align-items: center;
  gap: var(--s-12);
  padding-top: var(--s-12);
  padding-bottom: var(--s-16);
}
.hero__copy { max-width: 620px; }

.hero h1 {
  font-size: clamp(2.3rem, 4.6vw, 3.3rem);
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 1.05;
  margin-bottom: var(--s-4);
}
.hero .lead { color: rgba(255, 255, 255, 0.88); margin-top: var(--s-2); }

.hero__actions {
  display: flex; flex-wrap: wrap; gap: var(--s-3);
  margin: var(--s-8) 0 var(--s-6);
}
.hero__micro {
  margin-top: var(--s-6);
  font-size: .88rem;
  color: rgba(255, 255, 255, 0.72);
}

.hero__device { position: relative; display: flex; justify-content: center; }

/* floating stat card next to the device */
.hero__float {
  position: absolute;
  left: -8px; bottom: 14%;
  display: flex; align-items: center; gap: 10px;
  padding: 12px 18px;
  background: var(--surface);
  color: var(--text);
  border-radius: var(--r-card);
  box-shadow: var(--shadow-float);
  font-size: .88rem; font-weight: 650;
}
.hero__float .dot {
  width: 30px; height: 30px; border-radius: 9px;
  background: var(--success-soft); color: var(--success);
  display: grid; place-items: center; flex: none;
}
.hero__float small { display: block; font-weight: 500; color: var(--text-3); font-size: .76rem; }

/* -------------------------------- devices --------------------------------- */
.phone {
  --w: 300px;
  position: relative;
  width: var(--w);
  aspect-ratio: 1320 / 2868;
  background: #101218;
  border-radius: calc(var(--w) * 0.155);
  box-shadow: var(--shadow-float);
  flex: none;
}
.phone__screen {
  position: absolute;
  inset: calc(var(--w) * 0.028);
  border-radius: calc(var(--w) * 0.127);
  overflow: hidden;
  background: #fff;
  /* keep 1px hairline without a second shadow token */
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.06);
}
.phone__screen img { width: 100%; height: 100%; object-fit: cover; }
.phone__island {
  position: absolute;
  left: 50%; transform: translateX(-50%);
  top: calc(var(--w) * 0.027);
  width: calc(var(--w) * 0.284);
  height: calc(var(--w) * 0.084);
  background: #000;
  border-radius: var(--r-pill);
}
.phone__home {
  position: absolute;
  left: 50%; transform: translateX(-50%);
  bottom: calc(var(--w) * 0.018);
  width: calc(var(--w) * 0.318);
  height: calc(var(--w) * 0.0114);
  background: rgba(20, 22, 26, 0.32);
  border-radius: var(--r-pill);
}
.phone--sm { --w: 248px; }

.watch {
  --w: 200px;
  position: relative;
  width: var(--w);
  aspect-ratio: 422 / 514;
  background: #0a0a0c;
  border-radius: calc(var(--w) * 0.29);
  box-shadow: var(--shadow-float);
  flex: none;
}
.watch__screen {
  position: absolute;
  inset: calc(var(--w) * 0.085);
  border-radius: calc(var(--w) * 0.215);
  overflow: hidden;
  background: #000;
}
.watch__screen img { width: 100%; height: 100%; object-fit: cover; }
.watch__crown {
  position: absolute; right: calc(var(--w) * -0.028); top: 26%;
  width: calc(var(--w) * 0.05); height: calc(var(--w) * 0.12);
  background: #2a2c33; border-radius: 4px;
}

.ipad {
  --w: min(560px, 100%);
  position: relative;
  width: var(--w);
  aspect-ratio: 2064 / 2752;
  background: #101218;
  border-radius: calc(var(--w) * 0.035);
  box-shadow: var(--shadow-float);
  flex: none;
}
.ipad__screen {
  position: absolute;
  inset: calc(var(--w) * 0.016);
  border-radius: calc(var(--w) * 0.021);
  overflow: hidden;
  background: #fff;
}
.ipad__screen img { width: 100%; height: 100%; object-fit: cover; }

/* --------------------------- feature spotlight ---------------------------- */
.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  align-items: center;
  gap: var(--s-12);
}
/* media written first in the DOM, moved to the right column */
.split--media-right .split__media { order: 2; }
/* copy written first in the DOM, moved to the right column */
.split--copy-right .split__copy { order: 2; }
.split__media { display: flex; justify-content: center; }
.split__copy { max-width: 520px; }
.split__copy h2 { font-size: clamp(1.45rem, 2.3vw, 1.8rem); }
.split__copy .lead { font-size: .99rem; }

.checks { margin-top: var(--s-5); display: grid; gap: var(--s-3); }
.checks li {
  display: flex; gap: 10px; align-items: flex-start;
  font-size: .93rem; color: var(--text-2);
}
.checks svg { flex: none; margin-top: 3px; color: var(--success); }

/* ------------------------- dark bands (hero-like) ------------------------- */
.band {
  position: relative;
  overflow: hidden;
  color: #fff;
  background: linear-gradient(155deg, var(--hero-top) 0%, var(--hero-mid) 55%, var(--hero-bottom) 100%);
  border-radius: 40px;
}
.band::after {
  content: "";
  position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(50% 46% at 82% 8%, rgba(243, 168, 240, 0.36), transparent 72%);
}
.band .split { position: relative; z-index: 1; }
.band h2 { color: #fff; }
.band .lead { color: rgba(255, 255, 255, 0.85); }
.band .checks li { color: rgba(255, 255, 255, 0.85); }
.band .checks svg { color: rgba(255, 255, 255, 0.9); }
.band .eyebrow { color: rgba(255, 255, 255, 0.78); }
.band__inner { padding: var(--s-16) var(--s-6); max-width: var(--wrap); margin: 0 auto; }

/* ------------------------------- widget mock ------------------------------ */
/* Mirrors the app's own widget spec: small 158×158 / medium 338×158, r = 22. */
.homescreen {
  --w: min(320px, 84vw);
  width: var(--w);
  aspect-ratio: 390 / 630;
  border-radius: calc(var(--w) * 0.118);
  background: linear-gradient(170deg, #2A2448 0%, #3B3168 55%, #1E1A38 100%);
  padding: calc(var(--w) * 0.05);
  display: flex; flex-direction: column; gap: calc(var(--w) * 0.03);
  box-shadow: var(--shadow-float);
  position: relative;
  overflow: hidden;
}
.homescreen::before {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(60% 30% at 70% 8%, rgba(243, 168, 240, 0.3), transparent 70%);
}
.hs__status {
  position: relative;
  display: flex; align-items: center; justify-content: space-between;
  color: rgba(255, 255, 255, 0.92);
  font-size: calc(var(--w) * 0.045);
  font-weight: 650;
  padding: 0 calc(var(--w) * 0.015);
}
.hs__battery {
  width: calc(var(--w) * 0.062); height: calc(var(--w) * 0.03);
  border: 1.5px solid rgba(255, 255, 255, 0.7);
  border-radius: 3px;
  position: relative;
}
.hs__battery::before {
  content: ""; position: absolute; inset: 1.5px; width: 62%;
  background: #fff; border-radius: 1px;
}
.hs__row { position: relative; display: flex; gap: calc(var(--w) * 0.03); }
.hs__row > .wg { flex: 1 1 auto; }
.hs__row--split > * { flex: 1 1 0; }
.hs__spacer { flex: 1; }
.hs__dots { position: relative; display: flex; gap: 6px; justify-content: center; }
.hs__dots i {
  width: 6px; height: 6px; border-radius: 50%;
  background: rgba(255, 255, 255, 0.32);
}
.hs__dots i:first-child { background: rgba(255, 255, 255, 0.85); }
.hs__dock {
  position: relative;
  height: calc(var(--w) * 0.185);
  border-radius: calc(var(--w) * 0.055);
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.12);
  display: flex; align-items: center; justify-content: space-around;
  padding: 0 calc(var(--w) * 0.03);
}
.hs__dock i {
  width: calc(var(--w) * 0.125); height: calc(var(--w) * 0.125);
  border-radius: calc(var(--w) * 0.035);
  background: rgba(255, 255, 255, 0.2);
}

.wg {
  background: var(--surface);
  border-radius: 22px;
  padding: 14px 15px;
  color: var(--text);
  box-shadow: 0 6px 18px -8px rgba(0, 0, 0, 0.45);
  display: flex; flex-direction: column;
  min-width: 0;
  overflow: hidden;
}
.wg--medium { aspect-ratio: 338 / 158; flex-direction: row; gap: 14px; align-items: center; }
.wg--small { aspect-ratio: 1 / 1; align-items: center; text-align: center; padding: 12px 10px; }

.wg__lead {
  flex: none; display: flex; flex-direction: column;
  align-items: center; gap: 4px; min-width: 0; max-width: 78px;
}
.wg--medium .wg__name { font-size: .72rem; }
.wg--medium .wg__ring { width: 58px; height: 58px; }
.wg--medium .wg__ring::after { inset: 6px; }
.wg--medium .wg__ring > span b { font-size: 1.05rem; }

.wg__ring {
  position: relative; flex: none;
  width: 72px; height: 72px; border-radius: 50%;
  background: conic-gradient(var(--accent) 0turn 0.72turn, var(--accent-soft) 0.72turn 1turn);
  display: grid; place-items: center;
}
.wg__ring::after {
  content: ""; position: absolute; inset: 8px; border-radius: 50%; background: var(--surface);
}
.wg__ring > span {
  position: relative; z-index: 1; text-align: center;
  font-size: .62rem; font-weight: 650; line-height: 1.05; color: var(--text-3);
  letter-spacing: .01em;
}
.wg__ring > span b {
  display: block; font-size: 1.3rem; line-height: 1.05;
  font-weight: 800; letter-spacing: -0.02em; color: var(--text);
}
.wg__ring--today > span b { font-size: .9rem; color: var(--accent); letter-spacing: -0.01em; }

.wg__name {
  font-size: .78rem; font-weight: 800; letter-spacing: -0.01em;
  color: var(--text);
  max-width: 100%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.wg__meta { font-size: .7rem; color: var(--text-3); }

.wg__metrics { display: grid; gap: 7px; width: 100%; min-width: 0; }
.wg__metrics div {
  display: flex; align-items: center; gap: 8px; min-width: 0;
  font-size: .76rem; color: var(--text-2);
}
.wg__metrics div span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.wg__metrics b { margin-left: auto; color: var(--text); font-weight: 750; white-space: nowrap; }

.wg__progress {
  margin-top: auto; width: 100%; height: 5px; border-radius: var(--r-pill);
  background: var(--accent-soft); overflow: hidden;
}
.wg__progress i { display: block; height: 100%; background: var(--accent); border-radius: inherit; }
.wg--small .wg__ring { width: 46px; height: 46px; margin: 7px 0; }
.wg--small .wg__ring::after { inset: 6px; }
.wg--small .wg__ring > span b { font-size: .95rem; }
.wg--small .wg__ring--today > span b { font-size: .66rem; }
.wg--small .wg__meta { margin-bottom: auto; }
.wg--small .wg__progress { height: 4px; }

/* ------------------------------ feature grid ------------------------------ */
.grid-cards {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--s-4);
}
.card {
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: var(--r-card);
  padding: var(--s-6);
  box-shadow: var(--shadow-card);
}
.card__icon {
  width: 42px; height: 42px; border-radius: var(--r-input);
  background: var(--accent-soft); color: var(--accent);
  display: grid; place-items: center; margin-bottom: var(--s-4);
}
.card h3 { font-size: .97rem; margin-bottom: 6px; }
.card p { font-size: .88rem; color: var(--text-2); }

/* ------------------------------ hero extras ------------------------------- */
.hero__platforms {
  display: flex; flex-wrap: wrap; gap: var(--s-2) var(--s-5);
  font-size: .85rem; font-weight: 600; color: rgba(255, 255, 255, 0.78);
}
.hero__platforms li { display: inline-flex; align-items: center; gap: 8px; }
.hero__platforms li::before {
  content: ""; width: 6px; height: 6px; border-radius: 50%;
  background: var(--hero-glow);
}
.watch--float {
  --w: 132px;
  position: absolute; right: 2%; bottom: 10%;
}

/* -------------------------------- pillars --------------------------------- */
.pillars__grid {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--s-5);
}
.pillar {
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: var(--r-card);
  padding: var(--s-8);
  box-shadow: var(--shadow-card);
}
.pillar__icon {
  width: 52px; height: 52px; border-radius: 14px;
  background: var(--accent-soft); color: var(--accent);
  display: grid; place-items: center; margin-bottom: var(--s-5);
}
.pillar h3 { font-size: 1.08rem; margin-bottom: var(--s-2); }
.pillar p { color: var(--text-2); font-size: .92rem; }

/* alternate tinted section */
.section--alt { background: var(--surface); }

/* --------------------------------- steps ---------------------------------- */
.steps {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--s-8);
}
.step { display: flex; flex-direction: column; align-items: center; text-align: center; position: relative; }
.step .phone { margin-bottom: var(--s-6); }
.step__num {
  position: absolute; top: -10px; left: calc(50% - 150px); z-index: 2;
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--accent); color: var(--on-accent);
  display: grid; place-items: center;
  font-weight: 800; font-size: 1.05rem;
  box-shadow: var(--shadow-float);
}
.step h3 { margin-bottom: var(--s-2); }
.step p { color: var(--text-2); font-size: .92rem; max-width: 32ch; }

/* ---------------------------------- duo ----------------------------------- */
.duo {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--s-12);
  margin-top: var(--s-8);
}
.duo__item { display: flex; flex-direction: column; align-items: center; text-align: center; }
.duo__item > .watch, .duo__item > .homescreen { margin-bottom: var(--s-8); }
.duo__item .watch { --w: 220px; margin-top: var(--s-12); }
.duo__item h3 { color: #fff; margin-bottom: var(--s-2); }
.duo__item p { color: rgba(255, 255, 255, 0.82); max-width: 40ch; font-size: .92rem; }
.band .section-head { position: relative; z-index: 1; }

/* --------------------------------- facts ---------------------------------- */
.facts {
  margin-top: var(--s-8);
  display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--s-4);
}
.fact {
  border: 1px solid var(--hairline); border-radius: var(--r-card);
  padding: var(--s-4) var(--s-5); background: var(--bg);
}
.fact b { display: block; font-size: .96rem; margin-bottom: 2px; color: var(--text); }
.fact span { font-size: .85rem; color: var(--text-2); }

.endcta__icon { width: 96px; height: 96px; border-radius: 22px; margin: 0 auto var(--s-6); box-shadow: var(--shadow-float); }

/* -------------------------------- pricing --------------------------------- */
.pricing__grid {
  display: grid; grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--s-5); align-items: start;
}
.plan {
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: var(--r-card);
  padding: var(--s-8);
  box-shadow: var(--shadow-card);
}
.plan--featured {
  border: 2px solid var(--accent);
  position: relative;
}
.plan__badge {
  position: absolute; top: -14px; left: var(--s-8);
  background: var(--accent); color: var(--on-accent);
  font-size: .74rem; font-weight: 750; letter-spacing: .06em;
  text-transform: uppercase;
  padding: 5px 12px; border-radius: var(--r-pill);
}
.plan h3 { font-size: 1.15rem; }
.plan__price { display: flex; align-items: baseline; gap: 10px; margin: var(--s-4) 0 var(--s-1); }
.plan__price strong { font-size: 2.2rem; font-weight: 800; letter-spacing: -0.03em; }
.plan__price s { color: var(--text-3); font-size: 1.05rem; }
.plan__price em {
  font-style: normal; font-size: .8rem; font-weight: 700;
  background: var(--success-soft); color: var(--success);
  padding: 3px 9px; border-radius: var(--r-pill);
}
.plan__note { color: var(--text-3); font-size: .86rem; }
.plan ul { margin: var(--s-6) 0; display: grid; gap: var(--s-3); }
.plan li { display: flex; gap: 10px; font-size: .9rem; color: var(--text-2); }
.plan li svg { flex: none; margin-top: 3px; color: var(--success); }
.plan .btn { width: 100%; }

/* --------------------------------- cta end -------------------------------- */
.endcta { text-align: center; }
.endcta h2 { color: #fff; }
.endcta p { color: rgba(255, 255, 255, 0.85); margin: var(--s-4) auto var(--s-8); max-width: 52ch; }
.appstore {
  display: inline-flex; align-items: center; gap: 12px;
  background: #000; color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 14px;
  padding: 12px 22px;
  transition: transform .15s ease, background-color .18s ease;
}
.appstore:hover { transform: translateY(-1px); background: #111; }
.appstore small { display: block; font-size: .72rem; opacity: .82; line-height: 1.2; }
.appstore strong { font-size: 1.06rem; font-weight: 650; letter-spacing: -0.01em; }
.endcta__note { margin-top: var(--s-4); font-size: .84rem; color: rgba(255, 255, 255, 0.7); }

/* --------------------------------- footer --------------------------------- */
.footer {
  background: var(--surface);
  border-top: 1px solid var(--hairline);
  padding: var(--s-12) 0 var(--s-8);
  font-size: .9rem;
  color: var(--text-2);
}
.footer__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) repeat(2, minmax(0, 1fr));
  gap: var(--s-8);
}
.footer__brand { display: flex; align-items: center; gap: 10px; font-weight: 750; color: var(--text); }
.footer__brand img { width: 30px; height: 30px; border-radius: 8px; }
.footer__tag { margin-top: var(--s-3); max-width: 34ch; color: var(--text-3); font-size: .86rem; }
.footer h4 {
  font-size: .76rem; text-transform: uppercase; letter-spacing: .09em;
  color: var(--text-3); font-weight: 700; margin-bottom: var(--s-4);
}
.footer__links { display: grid; gap: 10px; }
.footer__links a:hover { color: var(--accent); }
.footer__legal {
  margin-top: var(--s-12);
  padding-top: var(--s-6);
  border-top: 1px solid var(--hairline);
  display: flex; flex-wrap: wrap; gap: var(--s-4);
  justify-content: space-between;
  font-size: .82rem;
  color: var(--text-3);
}
.footer__disclaimer { max-width: 72ch; margin-top: var(--s-4); font-size: .8rem; color: var(--text-3); }

/* ------------------------------- animations ------------------------------- */
.reveal { opacity: 0; transform: translateY(18px); }
.reveal.is-visible {
  opacity: 1; transform: none;
  transition: opacity .6s cubic-bezier(.2,.7,.3,1), transform .6s cubic-bezier(.2,.7,.3,1);
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal, .reveal.is-visible { opacity: 1; transform: none; transition: none; }
  .btn:active { transform: none; }
}

/* ------------------------------ breakpoints ------------------------------- */
@media (max-width: 1024px) {
  .hero__inner { grid-template-columns: 1fr; gap: var(--s-12); text-align: left; }
  .hero__device { margin-top: var(--s-4); }
  .hero__float { left: 4px; }
  .grid-cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .footer__brand-col { grid-column: 1 / -1; }
}

@media (max-width: 880px) {
  .nav__toggle { display: flex; }
  .nav__links {
    position: absolute; top: 68px; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--surface);
    border-bottom: 1px solid var(--hairline);
    box-shadow: var(--shadow-card);
    padding: var(--s-2) var(--s-6) var(--s-6);
    display: none;
  }
  .nav.is-open .nav__links { display: flex; }
  .nav.is-open { background: var(--surface); }
  .nav.is-open .nav__brand { color: var(--text); }
  .nav.is-open .nav__toggle span { background: var(--text); }
  .nav__links a {
    color: var(--text) !important;
    padding: 14px 0;
    border-bottom: 1px solid var(--hairline);
    font-size: 1rem;
  }
  .nav__cta .btn { display: none; }
  .nav.is-open .nav__cta { display: none; }

  .split, .pricing__grid, .duo { grid-template-columns: 1fr; }
  .split { gap: var(--s-8); }
  .pillars__grid, .steps { grid-template-columns: 1fr; gap: var(--s-12); }
  .duo__item .watch { margin-top: 0; }
  .split--media-right .split__media,
  .split--copy-right .split__copy { order: 0; }
  .band { border-radius: 28px; }
  .hero { border-bottom-left-radius: 28px; border-bottom-right-radius: 28px; }
  .band__inner { padding: var(--s-12) var(--s-6); }
}

@media (max-width: 560px) {
  :root { --s-16: 52px; --s-12: 36px; }
  body { font-size: 16px; }
  .wrap { padding: 0 var(--s-5); }
  .grid-cards { grid-template-columns: 1fr; }
  .facts { grid-template-columns: 1fr; }
  .watch--float { --w: 100px; right: 0; }
  .step__num { left: calc(50% - 136px); }
  .phone { --w: min(272px, 76vw); }
  .watch { --w: 168px; }
  .hero__float { left: 0; bottom: 8%; padding: 10px 14px; font-size: .8rem; }
  .footer__grid { grid-template-columns: 1fr; }
  .footer__legal { flex-direction: column; gap: var(--s-2); }
  .plan { padding: var(--s-6); }
}