:root {
  --bg: #05070b;
  --panel: rgba(255, 255, 255, .075);
  --panel-strong: rgba(255, 255, 255, .115);
  --text: #f6fbff;
  --muted: #99a8b6;
  --line: rgba(255, 255, 255, .14);
  --green: #68ff9f;
  --cyan: #4de7ff;
  --purple: #9b7cff;
  --danger: #ff537a;
  --shadow: 0 28px 90px rgba(0, 0, 0, .42);
  --radius: 22px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--text);
  font-family: Inter, "Noto Sans JP", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.75;
  background:
    radial-gradient(circle at 12% 10%, rgba(77, 231, 255, .22), transparent 28%),
    radial-gradient(circle at 88% 0%, rgba(104, 255, 159, .16), transparent 30%),
    radial-gradient(circle at 70% 62%, rgba(155, 124, 255, .16), transparent 34%),
    linear-gradient(135deg, #05070b, #0b111a 55%, #05070b);
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
button, input { font: inherit; color: inherit; }

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 20;
  min-height: 74px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 14px clamp(18px, 4vw, 54px);
  border-bottom: 1px solid var(--line);
  background: rgba(5, 7, 11, .74);
  backdrop-filter: blur(18px);
}
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 950; font-size: 20px; white-space: nowrap; }
.brand span { width: 40px; height: 40px; display: grid; place-items: center; border-radius: 14px; color: #05070b; background: linear-gradient(135deg, var(--green), var(--cyan)); box-shadow: 0 16px 34px rgba(104, 255, 159, .24); }
.nav { display: flex; flex-wrap: wrap; justify-content: center; gap: 6px; }
.nav a { padding: 8px 10px; border-radius: 999px; color: var(--muted); font-size: 14px; font-weight: 800; transition: .2s; }
.nav a:hover, .nav a.active { color: var(--text); background: rgba(104, 255, 159, .12); }
.menu-btn { display: none; width: 44px; height: 44px; border: 1px solid var(--line); border-radius: 999px; background: var(--panel); cursor: pointer; }
.menu-btn span { display: block; width: 18px; height: 2px; margin: 5px auto; background: var(--text); border-radius: 2px; }

.hero, .section { width: min(1180px, calc(100% - 32px)); margin: 0 auto; }
.hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1.04fr .96fr;
  align-items: center;
  gap: 54px;
  padding: 130px 0 72px;
}
.eyebrow { display: inline-flex; padding: 8px 12px; border: 1px solid rgba(104, 255, 159, .32); border-radius: 999px; color: var(--green); background: rgba(104, 255, 159, .08); font-weight: 900; }
h1 { margin: 18px 0; font-size: clamp(48px, 7.6vw, 92px); line-height: 1; letter-spacing: 0; }
h2 { margin: 0; font-size: clamp(32px, 5.2vw, 58px); line-height: 1.12; letter-spacing: 0; }
h3 { margin: 0 0 10px; line-height: 1.3; }
p { color: var(--muted); }
.lead { max-width: 760px; font-size: clamp(17px, 2vw, 22px); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.btn, .waitlist button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 12px 18px;
  background: rgba(255, 255, 255, .07);
  font-weight: 900;
  cursor: pointer;
  transition: transform .2s, border-color .2s, box-shadow .2s, background .2s;
}
.btn:hover, .waitlist button:hover { transform: translateY(-2px); border-color: rgba(104, 255, 159, .58); box-shadow: 0 18px 42px rgba(104, 255, 159, .16); }
.primary { border: 0; color: #05070b; background: linear-gradient(135deg, var(--green), var(--cyan)); }
.trust-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }
.trust-row span { padding: 8px 11px; border: 1px solid var(--line); border-radius: 999px; color: var(--muted); background: rgba(255, 255, 255, .06); font-size: 13px; }

.device-stage { display: grid; place-items: center; }
.phone {
  position: relative;
  width: min(370px, 100%);
  min-height: 700px;
  border: 12px solid #171b24;
  border-radius: 50px;
  padding: 22px;
  background: linear-gradient(180deg, #0f1520, #070b11);
  box-shadow: 0 40px 120px rgba(0,0,0,.56), 0 0 70px rgba(77,231,255,.12);
}
.phone::before { content: ""; position: absolute; inset: 36px -24px auto auto; width: 120px; height: 120px; border-radius: 50%; background: rgba(104,255,159,.22); filter: blur(30px); }
.phone-bar { width: 96px; height: 8px; margin: 0 auto 18px; border-radius: 999px; background: #2d3440; }
.dash-card, .exercise-list div, .timer-ring {
  border: 1px solid rgba(255,255,255,.13);
  border-radius: 22px;
  background: rgba(255,255,255,.075);
  backdrop-filter: blur(14px);
}
.dash-card { padding: 18px; }
.dash-card span { color: var(--green); font-weight: 900; }
.dash-card strong { display: block; font-size: 40px; }
.timer-ring { width: 210px; height: 210px; margin: 22px auto; display: grid; place-items: center; text-align: center; border-radius: 50%; background: radial-gradient(circle, rgba(104,255,159,.18), rgba(77,231,255,.08)); box-shadow: inset 0 0 0 12px rgba(104,255,159,.16); }
.timer-ring b { display: block; font-size: 42px; }
.timer-ring span { display: block; color: var(--muted); }
.exercise-list { display: grid; gap: 10px; }
.exercise-list div { display: flex; justify-content: space-between; align-items: center; padding: 13px; }
.exercise-list span { color: var(--muted); font-size: 13px; }
.phone button { width: 100%; margin-top: 16px; border: 0; border-radius: 18px; padding: 14px; color: #05070b; background: linear-gradient(135deg, var(--green), var(--cyan)); font-weight: 950; }

.section { padding: 92px 0; scroll-margin-top: 86px; }
.dark-band { width: 100%; max-width: none; padding-left: max(16px, calc((100% - 1180px) / 2)); padding-right: max(16px, calc((100% - 1180px) / 2)); border-block: 1px solid var(--line); background: rgba(255,255,255,.035); }
.section-title { max-width: 880px; margin-bottom: 28px; }
.section-title span { display: block; color: var(--green); font-size: 12px; font-weight: 950; letter-spacing: .14em; text-transform: uppercase; margin-bottom: 8px; }
.section-title p { margin: 12px 0 0; }

.feature-grid, .steps, .screen-grid, .pricing-grid, .vision-grid { display: grid; gap: 16px; }
.feature-grid { grid-template-columns: repeat(3, 1fr); }
.steps { grid-template-columns: repeat(5, minmax(180px, 1fr)); overflow-x: auto; padding-bottom: 10px; }
.screen-grid, .vision-grid { grid-template-columns: repeat(4, 1fr); }
.pricing-grid { grid-template-columns: repeat(3, 1fr); }
.feature, .step, .screen-card, .price-card, .vision, .waitlist {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}
.feature, .step, .screen-card, .price-card, .vision { padding: 24px; }
.feature b { color: var(--green); font-size: 30px; }
.step span { width: 42px; height: 42px; display: grid; place-items: center; border-radius: 50%; color: #05070b; background: linear-gradient(135deg, var(--green), var(--cyan)); font-weight: 950; margin-bottom: 14px; }

.mini-phone {
  min-height: 280px;
  border: 8px solid #171b24;
  border-radius: 34px;
  padding: 18px;
  margin-bottom: 18px;
  background: linear-gradient(180deg, #111925, #070b11);
}
.mini-phone strong { display: block; font-size: 42px; margin: 24px 0; color: var(--green); }
.bars { display: flex; align-items: end; gap: 10px; height: 150px; margin-top: 20px; }
.bars span { flex: 1; border-radius: 999px; background: linear-gradient(180deg, var(--cyan), var(--green)); }
.bars span:nth-child(1) { height: 46%; }
.bars span:nth-child(2) { height: 72%; }
.bars span:nth-child(3) { height: 92%; }
.ai p { margin-top: 60px; color: var(--text); font-weight: 900; }
.price-card { position: relative; }
.price-card.featured { border-color: rgba(104,255,159,.48); transform: translateY(-8px); }
.badge { position: absolute; right: 18px; top: 18px; border-radius: 999px; padding: 5px 10px; color: #05070b; background: var(--green); font-size: 12px; font-weight: 950; }
.price { font-size: 40px; font-weight: 950; color: var(--green); margin: 14px 0; }
.price span { font-size: 15px; color: var(--muted); margin-left: 4px; }
ul { padding-left: 20px; color: var(--muted); }

.cta-section { text-align: center; }
.cta-section .section-title { margin-left: auto; margin-right: auto; }
.waitlist { width: min(760px, 100%); margin: 0 auto; padding: 18px; display: grid; grid-template-columns: 1fr auto; gap: 10px; text-align: left; }
.waitlist input { min-height: 48px; border: 1px solid var(--line); border-radius: 999px; background: rgba(255,255,255,.07); padding: 0 16px; outline: none; }
.waitlist p { grid-column: 1 / -1; margin: 0; font-size: 14px; }

.to-top { position: fixed; right: 18px; bottom: 18px; z-index: 12; width: 48px; height: 48px; border: 0; border-radius: 50%; color: #05070b; background: linear-gradient(135deg, var(--green), var(--cyan)); box-shadow: var(--shadow); cursor: pointer; opacity: 0; pointer-events: none; transition: .2s; }
.to-top.show { opacity: 1; pointer-events: auto; }
footer { display: flex; flex-wrap: wrap; justify-content: center; gap: 16px; padding: 32px; color: var(--muted); border-top: 1px solid var(--line); }
footer a { color: var(--text); font-weight: 950; }
footer p { width: 100%; text-align: center; margin: 0; }
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s ease; }
.reveal.show { opacity: 1; transform: none; }

@media (max-width: 1040px) {
  .nav { position: fixed; top: 74px; right: 16px; width: min(340px, calc(100% - 32px)); display: none; flex-direction: column; align-items: stretch; padding: 16px; border: 1px solid var(--line); border-radius: 22px; background: #080c12; box-shadow: var(--shadow); }
  .nav.open { display: flex; }
  .menu-btn { display: block; }
  .hero, .feature-grid, .screen-grid, .pricing-grid, .vision-grid, .waitlist { grid-template-columns: 1fr; }
  .hero { min-height: auto; }
}

@media (max-width: 560px) {
  .hero, .section { width: min(100% - 24px, 1180px); }
  h1 { font-size: 42px; }
  .phone { min-height: 650px; }
}