:root {
  color-scheme: dark;
  --bg: #06100d;
  --bg-soft: #0b1a16;
  --surface: rgba(15, 31, 26, 0.86);
  --surface-strong: #10241d;
  --text: #f5f7f3;
  --muted: #a8b5ae;
  --line: rgba(215, 232, 221, 0.14);
  --lime: #caff38;
  --lime-soft: #ddff7a;
  --gold: #ffd55a;
  --danger: #ff917e;
  --max: 1180px;
  font-family: -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Noto Sans KR", sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at 78% 8%, rgba(70, 142, 80, 0.22), transparent 31rem),
    radial-gradient(circle at 18% 32%, rgba(202, 255, 56, 0.07), transparent 25rem),
    var(--bg);
  color: var(--text);
  font-size: 16px;
  line-height: 1.65;
  overflow-x: hidden;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  content: "";
  background-image: radial-gradient(rgba(255, 255, 255, 0.11) 0.6px, transparent 0.6px);
  background-size: 24px 24px;
  mask-image: linear-gradient(to bottom, black, transparent 70%);
  opacity: 0.25;
}

a { color: inherit; }

button, a { -webkit-tap-highlight-color: transparent; }

button:focus-visible, a:focus-visible, video:focus-visible {
  outline: 3px solid var(--lime);
  outline-offset: 4px;
}

.site-header {
  position: relative;
  z-index: 10;
  display: flex;
  width: min(calc(100% - 40px), var(--max));
  margin: 0 auto;
  padding: 22px 0;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  font-weight: 800;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.brand img, .footer-brand img {
  border-radius: 12px;
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.35);
}

.header-cta {
  padding: 10px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  font-size: 0.9rem;
  font-weight: 700;
  text-decoration: none;
  transition: border-color 160ms ease, background 160ms ease;
}

.header-cta:hover { border-color: rgba(202, 255, 56, 0.5); background: rgba(202, 255, 56, 0.1); }

.hero {
  display: grid;
  width: min(calc(100% - 40px), var(--max));
  min-height: calc(100svh - 90px);
  margin: 0 auto;
  padding: 52px 0 82px;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.78fr);
  gap: clamp(48px, 8vw, 112px);
  align-items: center;
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--lime);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.hero h1, .section-heading h2, .video-copy h2, .purchase-card h2 {
  margin: 0;
  font-weight: 900;
  letter-spacing: -0.055em;
  line-height: 1.08;
  word-break: keep-all;
}

.hero h1 { font-size: clamp(3.4rem, 7vw, 6.65rem); }
.hero h1 span { color: var(--gold); }

.hero-question {
  margin: 26px 0 30px;
  color: #dfe7e1;
  font-size: clamp(1.35rem, 2.3vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 1.35;
}

.mobile-break { display: none; }

.choice-panel {
  max-width: 650px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: rgba(3, 12, 9, 0.72);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(18px);
}

.choice-buttons { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }

.choice-button {
  display: flex;
  min-height: 94px;
  padding: 18px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 17px;
  align-items: center;
  gap: 14px;
  background: rgba(255, 255, 255, 0.055);
  color: var(--text);
  cursor: pointer;
  font: inherit;
  text-align: left;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

.choice-button:hover { transform: translateY(-2px); border-color: rgba(202, 255, 56, 0.52); background: rgba(202, 255, 56, 0.08); }
.choice-button[aria-pressed="true"] { border-color: var(--lime); background: rgba(202, 255, 56, 0.12); }

.choice-kicker {
  display: grid;
  width: 34px;
  height: 34px;
  flex: 0 0 auto;
  border-radius: 50%;
  place-items: center;
  background: var(--lime);
  color: #10200b;
  font-size: 0.82rem;
  font-weight: 900;
}

.choice-button strong { display: block; font-size: 1.05rem; }
.choice-button small { display: block; margin-top: 3px; color: var(--muted); font-size: 0.78rem; }

.choice-result {
  padding: 20px 18px 14px;
  animation: result-in 250ms ease both;
}

.result-label { margin: 0 0 8px; color: var(--lime); font-size: 0.78rem; font-weight: 800; }
.result-copy { margin: 0; color: var(--text); font-size: 1.13rem; font-weight: 700; line-height: 1.55; }
.result-hook { margin: 12px 0 0; color: var(--muted); font-size: 0.88rem; }
.reset-choice { margin-top: 14px; padding: 0; border: 0; background: none; color: #dce7df; cursor: pointer; font: inherit; font-size: 0.86rem; text-decoration: underline; text-underline-offset: 4px; }
.result-actions { display: flex; margin-top: 16px; align-items: center; justify-content: space-between; gap: 16px; }
.result-actions .reset-choice { margin-top: 0; }
.result-actions a { color: var(--lime); font-size: 0.86rem; font-weight: 800; text-underline-offset: 4px; }

.purchase-row { display: flex; margin-top: 26px; align-items: center; gap: 20px; }
.purchase-row p { margin: 0; color: var(--muted); font-size: 0.86rem; line-height: 1.45; }
.purchase-row strong { color: var(--text); font-size: 1.03rem; }

.primary-cta {
  display: inline-flex;
  min-height: 60px;
  padding: 10px 22px;
  border-radius: 15px;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: var(--text);
  color: #07130f;
  font-weight: 800;
  line-height: 1.1;
  text-decoration: none;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.26);
  transition: transform 160ms ease, box-shadow 160ms ease;
}

.primary-cta:hover { transform: translateY(-2px); box-shadow: 0 14px 34px rgba(0, 0, 0, 0.34); }
.primary-cta small { display: block; margin-bottom: 3px; font-size: 0.7rem; font-weight: 600; }
.apple-mark { font-size: 1.9rem; line-height: 1; }
.availability-note { margin: 10px 0 0; color: #7f9187; font-size: 0.76rem; }

.hero-visual {
  position: relative;
  width: min(100%, 410px);
  margin: 0 auto;
}

.hero-visual img {
  position: relative;
  z-index: 2;
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 36px;
  box-shadow: 0 45px 100px rgba(0, 0, 0, 0.55);
}

.phone-halo {
  position: absolute;
  inset: 12% -20%;
  z-index: 0;
  border-radius: 50%;
  background: rgba(111, 176, 74, 0.28);
  filter: blur(80px);
}

.proof-chip {
  position: absolute;
  z-index: 3;
  padding: 10px 14px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 999px;
  background: rgba(3, 12, 9, 0.84);
  color: #ecf3ee;
  font-size: 0.78rem;
  font-weight: 750;
  backdrop-filter: blur(12px);
}

.proof-chip-top { top: 18px; right: -28px; }
.proof-chip-bottom { right: -34px; bottom: 60px; color: var(--lime); }

.fact-strip {
  display: grid;
  width: min(calc(100% - 40px), var(--max));
  margin: 0 auto;
  padding: 32px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  grid-template-columns: repeat(4, 1fr);
}

.fact-strip div { display: flex; min-width: 0; padding: 0 26px; flex-direction: column; border-right: 1px solid var(--line); }
.fact-strip div:first-child { padding-left: 0; }
.fact-strip div:last-child { border-right: 0; }
.fact-strip strong { color: var(--lime-soft); font-size: clamp(1.8rem, 3vw, 2.8rem); font-weight: 850; letter-spacing: -0.04em; line-height: 1.1; }
.fact-strip span { margin-top: 5px; color: var(--muted); font-size: 0.9rem; }

.story-section, .video-section {
  display: grid;
  width: min(calc(100% - 40px), var(--max));
  margin: 0 auto;
  padding: 140px 0;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: clamp(50px, 8vw, 120px);
  align-items: center;
}

.section-heading h2, .video-copy h2, .purchase-card h2 { font-size: clamp(2.3rem, 5vw, 4.5rem); }
.section-heading > p:last-child, .video-copy > p { max-width: 560px; margin: 28px 0 0; color: var(--muted); font-size: 1.02rem; }

.screen-gallery { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; align-items: start; }
.screen-card { margin: 0; }
.screen-card img { display: block; width: 100%; height: auto; border: 1px solid var(--line); border-radius: 26px; box-shadow: 0 28px 70px rgba(0, 0, 0, 0.34); }
.screen-card figcaption { display: flex; margin-top: 16px; align-items: baseline; gap: 10px; color: #dfe8e2; font-size: 0.9rem; }
.screen-card figcaption span { color: var(--lime); font-size: 0.72rem; font-weight: 900; }

.value-section { width: min(calc(100% - 40px), var(--max)); margin: 0 auto; padding: 30px 0 140px; text-align: center; }
.value-section h2 { margin: 0; font-size: clamp(2.3rem, 5vw, 4.5rem); font-weight: 900; letter-spacing: -0.055em; line-height: 1.08; }
.value-grid { display: grid; margin-top: 48px; grid-template-columns: repeat(3, 1fr); gap: 16px; text-align: left; }
.value-grid article { padding: 28px; border: 1px solid var(--line); border-radius: 24px; background: rgba(255, 255, 255, 0.045); }
.value-grid strong { color: var(--lime-soft); font-size: 1.08rem; }
.value-grid p { margin: 10px 0 0; color: var(--muted); font-size: 0.92rem; }

.faq-section { width: min(calc(100% - 40px), var(--max)); margin: 0 auto; padding: 30px 0 140px; border-top: 1px solid var(--line); text-align: center; }
.faq-section .section-heading { display: flex; flex-direction: column; align-items: center; }
.faq-list { display: grid; max-width: 760px; margin: 44px auto 0; gap: 12px; text-align: left; }
.faq-item { padding: 22px 26px; border: 1px solid var(--line); border-radius: 20px; background: rgba(255, 255, 255, 0.045); }
.faq-item summary { display: flex; align-items: center; justify-content: space-between; gap: 16px; color: var(--text); font-size: 1.02rem; font-weight: 700; letter-spacing: -0.01em; list-style: none; cursor: pointer; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { flex-shrink: 0; color: var(--lime); font-size: 1.1rem; font-weight: 900; content: "+"; transition: transform 0.2s ease; }
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item p { margin: 14px 0 0; color: var(--muted); font-size: 0.94rem; line-height: 1.6; }

.video-section {
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.72fr);
  border-top: 1px solid var(--line);
}

.video-copy ul { display: grid; margin: 32px 0 0; padding: 0; gap: 12px; list-style: none; }
.video-copy li { position: relative; padding-left: 26px; color: #dce5df; }
.video-copy li::before { position: absolute; left: 0; content: "↳"; color: var(--lime); font-weight: 900; }

.video-frame { width: min(100%, 390px); margin: 0 auto; padding: 11px; border: 1px solid var(--line); border-radius: 35px; background: #010503; box-shadow: 0 35px 90px rgba(0, 0, 0, 0.45); }
.video-frame video { display: block; width: 100%; aspect-ratio: 9 / 16; border-radius: 25px; background: #000; object-fit: cover; }

.purchase-section { width: min(calc(100% - 40px), var(--max)); margin: 0 auto; padding: 40px 0 140px; }
.purchase-card { position: relative; overflow: hidden; padding: clamp(32px, 7vw, 82px); border: 1px solid rgba(202, 255, 56, 0.26); border-radius: 36px; background: linear-gradient(145deg, rgba(28, 65, 49, 0.96), rgba(7, 20, 15, 0.98)); text-align: center; }
.purchase-card::after { position: absolute; top: -160px; left: 50%; width: 520px; height: 320px; border-radius: 50%; background: rgba(202, 255, 56, 0.15); content: ""; filter: blur(80px); transform: translateX(-50%); }
.purchase-card > * { position: relative; z-index: 1; }
.purchase-card h2 { max-width: 780px; margin: 0 auto; }
.purchase-lead { max-width: 620px; margin: 24px auto 0; color: #c8d4cc; }
.purchase-facts { display: flex; margin: 34px auto 0; flex-wrap: wrap; justify-content: center; gap: 9px; }
.purchase-facts span { padding: 8px 13px; border: 1px solid var(--line); border-radius: 999px; background: rgba(255, 255, 255, 0.05); color: #dfe8e2; font-size: 0.82rem; }
.final-price { display: flex; margin: 46px 0 26px; flex-direction: column; color: var(--muted); }
.final-price strong { margin-top: 3px; color: var(--gold); font-size: clamp(3rem, 7vw, 5.6rem); letter-spacing: -0.05em; line-height: 1; }
.primary-cta-wide { min-width: min(100%, 310px); }
.purchase-card .availability-note { color: #9fb1a6; }

footer {
  display: grid;
  width: min(calc(100% - 40px), var(--max));
  margin: 0 auto;
  padding: 32px 0 50px;
  border-top: 1px solid var(--line);
  grid-template-columns: 1fr auto;
  gap: 20px 40px;
  align-items: center;
  color: var(--muted);
  font-size: 0.84rem;
}

.footer-brand { display: flex; align-items: center; gap: 13px; }
.footer-brand strong, .footer-brand span { display: block; }
.footer-brand strong { color: var(--text); font-size: 0.9rem; }
.footer-brand span { margin-top: 2px; }
footer nav { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 18px; }
footer nav a { text-underline-offset: 4px; }
footer > p { grid-column: 1 / -1; margin: 0; }

.mobile-store-cta { display: none; }

@keyframes result-in {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

@media (max-width: 840px) {
  .hero { min-height: auto; padding-top: 34px; grid-template-columns: 1fr; }
  .hero-copy { text-align: center; }
  .hero h1 { font-size: clamp(3.05rem, 14vw, 5.5rem); }
  .hero-question { margin-top: 20px; }
  .mobile-break { display: inline; }
  .choice-panel { margin: 0 auto; text-align: left; }
  .purchase-row { justify-content: center; text-align: left; }
  .availability-note { text-align: center; }
  .hero-visual { width: min(85%, 390px); margin-top: 30px; }
  .story-section, .video-section { padding: 100px 0; grid-template-columns: 1fr; }
  .value-section { padding-bottom: 100px; }
  .value-grid { grid-template-columns: 1fr; }
  .video-copy { text-align: center; }
  .video-copy > p { margin-right: auto; margin-left: auto; }
  .video-copy ul { max-width: 560px; margin-right: auto; margin-left: auto; text-align: left; }
  .video-frame { margin-top: 12px; }
}

@media (max-width: 600px) {
  .site-header { width: min(calc(100% - 28px), var(--max)); padding-top: 16px; }
  .brand span { font-size: 0.94rem; }
  .header-cta { padding: 9px 12px; font-size: 0.78rem; }
  .hero, .fact-strip, .story-section, .video-section, .value-section, .purchase-section, footer { width: min(calc(100% - 28px), var(--max)); }
  .hero { padding-bottom: 66px; }
  .hero h1 { letter-spacing: -0.065em; }
  .choice-buttons { grid-template-columns: 1fr; }
  .choice-button { min-height: 82px; }
  .hero-visual { width: min(94%, 380px); }
  .proof-chip-top { right: -8px; }
  .proof-chip-bottom { right: -10px; }
  .fact-strip { grid-template-columns: 1fr 1fr; gap: 0; }
  .fact-strip div { padding: 20px 8px 20px 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .fact-strip div:nth-child(even) { padding-left: 18px; border-left: 1px solid var(--line); }
  .fact-strip div:nth-last-child(-n+2) { border-bottom: 0; }
  .fact-strip strong { font-size: 2.2rem; }
  .story-section, .video-section { padding: 84px 0; }
  .section-heading h2, .video-copy h2, .purchase-card h2 { font-size: clamp(2.1rem, 11vw, 3.4rem); }
  .screen-gallery { display: flex; width: calc(100% + 28px); margin-right: -14px; margin-left: -14px; padding: 0 14px 20px; gap: 14px; overflow-x: auto; scroll-snap-type: x mandatory; scrollbar-width: none; }
  .screen-gallery::-webkit-scrollbar { display: none; }
  .screen-card { width: min(78vw, 330px); flex: 0 0 auto; scroll-snap-align: center; }
  .screen-card img { border-radius: 20px; }
  .screen-card figcaption { font-size: 0.82rem; line-height: 1.45; }
  .value-section h2 { font-size: clamp(2.1rem, 11vw, 3.4rem); }
  .value-grid { margin-top: 32px; gap: 10px; }
  .value-grid article { padding: 22px; }
  .faq-section { padding: 24px 0 84px; }
  .faq-section h2 { font-size: clamp(2.1rem, 11vw, 3.4rem); }
  .faq-list { margin-top: 30px; gap: 10px; }
  .faq-item { padding: 18px 18px; border-radius: 16px; }
  .faq-item summary { font-size: 0.96rem; }
  .purchase-section { padding-bottom: 84px; }
  .purchase-card { border-radius: 26px; }
  footer { grid-template-columns: 1fr; }
  footer nav { justify-content: flex-start; }
  body { padding-bottom: 82px; }
  .mobile-store-cta { position: fixed; right: 10px; bottom: calc(10px + env(safe-area-inset-bottom)); left: 10px; z-index: 50; display: flex; min-height: 64px; padding: 10px 12px 10px 16px; border: 1px solid rgba(202, 255, 56, 0.45); border-radius: 18px; align-items: center; justify-content: space-between; gap: 12px; background: rgba(8, 22, 17, 0.95); box-shadow: 0 14px 45px rgba(0,0,0,.48); text-decoration: none; backdrop-filter: blur(18px); }
  .mobile-store-cta span, .mobile-store-cta strong, .mobile-store-cta small { display: block; }
  .mobile-store-cta strong { font-size: .92rem; }
  .mobile-store-cta small { margin-top: 1px; color: var(--muted); font-size: .72rem; }
  .mobile-store-cta b { padding: 10px 13px; border-radius: 12px; background: var(--lime); color: #0b160c; font-size: .77rem; white-space: nowrap; }
}

@media (max-width: 390px) {
  .header-cta { display: none; }
  .purchase-row { align-items: flex-start; }
  .purchase-row p { padding-top: 6px; }
}