:root {
  color-scheme: light dark;
  --navy-950: #050d1f;
  --navy-900: #08162f;
  --navy-800: #10254a;
  --ink: #10213d;
  --muted: #5d6b81;
  --line: #dce4ef;
  --surface: #ffffff;
  --soft: #f3f7fb;
  --cyan: #16bfe9;
  --blue: #4269ff;
  --coral: #ff6171;
  --focus: #ffb548;
  font-family: -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Noto Sans KR", "Helvetica Neue", sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; background: var(--soft); }

body {
  margin: 0;
  color: var(--ink);
  background: var(--soft);
  line-height: 1.7;
  word-break: keep-all;
}

a { color: #2450da; text-underline-offset: .2em; }
a:hover { text-decoration-thickness: 2px; }
a:focus-visible, button:focus-visible { outline: 3px solid var(--focus); outline-offset: 4px; }

.skip-link {
  position: fixed;
  z-index: 100;
  top: 10px;
  left: 12px;
  padding: 10px 14px;
  border-radius: 10px;
  color: var(--navy-950);
  background: #fff;
  font-weight: 800;
  transform: translateY(-160%);
}
.skip-link:focus { transform: translateY(0); }

.topbar {
  position: sticky;
  z-index: 20;
  top: 0;
  display: flex;
  min-height: 68px;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 0 max(20px, calc((100vw - 1060px) / 2));
  border-bottom: 1px solid rgba(255, 255, 255, .13);
  color: #fff;
  background: rgba(5, 13, 31, .92);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-weight: 850;
  text-decoration: none;
}
.brand img { width: 38px; height: 38px; }
.brand-copy { display: grid; line-height: 1.05; }
.brand-copy strong { font-size: 1rem; }
.brand-copy small { margin-top: 4px; color: #9eb0ca; font-size: .62rem; font-weight: 720; letter-spacing: .08em; text-transform: uppercase; }
.topnav { display: flex; align-items: center; gap: 18px; }
.topnav a { color: #dce9ff; font-size: .92rem; font-weight: 720; text-decoration: none; }
.topnav a:hover { color: #fff; }
.topnav .partner-link { color: #8cecff; }
.language-link { padding-left: 18px; border-left: 1px solid rgba(255, 255, 255, .25); }

.hero-wrap {
  overflow: hidden;
  color: #fff;
  background:
    radial-gradient(circle at 18% 16%, rgba(22, 191, 233, .22), transparent 28rem),
    radial-gradient(circle at 84% 42%, rgba(66, 105, 255, .27), transparent 30rem),
    var(--navy-950);
}

.hero {
  display: grid;
  width: min(1120px, calc(100% - 36px));
  min-height: 670px;
  margin: 0 auto;
  padding: clamp(64px, 10vw, 116px) 0;
  grid-template-columns: minmax(0, 1.15fr) minmax(300px, .85fr);
  align-items: center;
  gap: clamp(38px, 8vw, 96px);
}

.eyebrow {
  margin: 0 0 14px;
  color: #6fe8ff;
  font-size: .78rem;
  font-weight: 850;
  letter-spacing: .17em;
  text-transform: uppercase;
}
.eyebrow.dark { color: #2450da; }

.hero h1, .page-header h1 {
  margin: 0;
  font-size: clamp(2.7rem, 7vw, 5.3rem);
  line-height: 1.03;
  letter-spacing: -.055em;
}
.hero h1 span { display: block; color: #9ef2ff; }
.hero .lead { max-width: 700px; margin: 26px 0 0; color: #c5d5ed; font-size: clamp(1.05rem, 2.4vw, 1.3rem); }

.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
.button {
  display: inline-flex;
  min-height: 50px;
  align-items: center;
  justify-content: center;
  padding: 0 22px;
  border: 1px solid #c9d5e6;
  border-radius: 14px;
  color: var(--ink);
  background: #fff;
  font-weight: 820;
  text-decoration: none;
  transition: transform .18s ease, box-shadow .18s ease;
}
.button:hover { transform: translateY(-2px); box-shadow: 0 14px 32px rgba(5, 13, 31, .17); }
.button.primary { border-color: transparent; color: #031027; background: linear-gradient(135deg, #77f2ff, #57b9ff); }
.button.ghost { border-color: rgba(255, 255, 255, .35); color: #fff; background: rgba(255, 255, 255, .07); }

.purchase-note { margin: 18px 0 0; color: #9fb1cb; font-size: .92rem; }
.hero-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}
.hero-facts span {
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
  padding: 9px 12px;
  border: 1px solid rgba(255, 255, 255, .14);
  border-radius: 999px;
  color: #aebed5;
  background: rgba(255, 255, 255, .055);
  font-size: .8rem;
}
.hero-facts strong { color: #fff; font-size: .92rem; }

.hero-visual {
  position: relative;
  display: grid;
  min-height: 430px;
  place-items: center;
}
.hero-visual::before, .hero-visual::after {
  position: absolute;
  content: "";
  border: 1px solid rgba(111, 232, 255, .24);
  border-radius: 32px;
  background: rgba(16, 37, 74, .58);
  box-shadow: 0 34px 80px rgba(0, 0, 0, .33);
}
.hero-visual::before { width: 74%; height: 63%; transform: translate(-16%, 12%) rotate(-8deg); }
.hero-visual::after { width: 74%; height: 63%; transform: translate(18%, -10%) rotate(8deg); }
.hero-visual img { position: relative; z-index: 2; width: min(72%, 300px); filter: drop-shadow(0 26px 42px rgba(0, 0, 0, .38)); }
.pulse {
  position: absolute;
  z-index: 3;
  right: 8%;
  bottom: 12%;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 10px 14px;
  border: 1px solid rgba(255, 255, 255, .19);
  border-radius: 999px;
  color: #e9f4ff;
  background: rgba(5, 13, 31, .82);
  box-shadow: 0 12px 30px rgba(0, 0, 0, .27);
  font-size: .82rem;
  font-weight: 750;
}
.pulse::before { width: 9px; height: 9px; border-radius: 50%; background: var(--coral); box-shadow: 0 0 0 5px rgba(255, 97, 113, .15); content: ""; }

.section { width: min(1060px, calc(100% - 36px)); margin: 0 auto; padding: clamp(64px, 9vw, 104px) 0; }
.section-heading { max-width: 720px; margin-bottom: 36px; }
.section-heading h2 { margin: 0; font-size: clamp(2rem, 5vw, 3.25rem); line-height: 1.15; letter-spacing: -.04em; }
.section-heading p:last-child { margin: 16px 0 0; color: var(--muted); font-size: 1.05rem; }

.product-section { scroll-margin-top: 76px; }
.product-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.product-card {
  position: relative;
  overflow: hidden;
  min-height: 390px;
  padding: clamp(26px, 5vw, 44px);
  border: 1px solid var(--line);
  border-radius: 30px;
  background: #fff;
  box-shadow: 0 24px 62px rgba(16, 33, 61, .1);
}
.product-card::after {
  position: absolute;
  right: -72px;
  bottom: -88px;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(22, 191, 233, .24), transparent 68%);
  content: "";
  pointer-events: none;
}
.studio-card {
  border-color: rgba(111, 232, 255, .22);
  color: #fff;
  background:
    radial-gradient(circle at 88% 8%, rgba(66, 105, 255, .35), transparent 44%),
    linear-gradient(145deg, #10254a, #050d1f);
}
.product-card-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.product-kicker { color: #3564d9; font-size: .75rem; font-weight: 900; letter-spacing: .1em; text-transform: uppercase; }
.studio-card .product-kicker { color: #79e8ff; }
.availability { padding: 7px 10px; border-radius: 999px; color: #44536a; background: #eef3fa; font-size: .7rem; font-weight: 800; white-space: nowrap; }
.studio-card .availability { color: #cfe8ff; background: rgba(255, 255, 255, .1); }
.product-card h3 { margin: 54px 0 14px; font-size: clamp(2rem, 4vw, 3.2rem); line-height: 1.04; letter-spacing: -.05em; }
.product-card > p { max-width: 520px; margin: 0; color: var(--muted); }
.studio-card > p { color: #b9cbe2; }
.product-price { display: grid; gap: 2px; margin-top: 38px; }
.product-price strong { font-size: 1.65rem; letter-spacing: -.035em; }
.product-price span { color: var(--muted); font-size: .82rem; }
.studio-card .product-price span { color: #9fb2ca; }
.text-action { position: relative; z-index: 1; display: inline-flex; min-height: 44px; align-items: center; gap: 7px; margin-top: 22px; color: #2450da; font-size: .9rem; font-weight: 820; }
.studio-card .text-action { color: #8deeff; }
.muted-action { color: #aabbd1 !important; }

.bundle-panel {
  position: relative;
  overflow: hidden;
  margin-top: 18px;
  padding: clamp(30px, 6vw, 58px);
  border-radius: 32px;
  color: #fff;
  background:
    radial-gradient(circle at 10% 0%, rgba(22, 191, 233, .2), transparent 30rem),
    radial-gradient(circle at 95% 85%, rgba(255, 97, 113, .16), transparent 25rem),
    #07142c;
}
.bundle-intro { display: grid; grid-template-columns: .8fr 1.2fr; align-items: end; gap: 28px 52px; }
.bundle-intro .eyebrow { grid-column: 1 / -1; margin-bottom: -6px; }
.bundle-intro h3 { margin: 0; font-size: clamp(1.9rem, 4vw, 3rem); line-height: 1.12; letter-spacing: -.04em; }
.bundle-intro > p:last-child { margin: 0; color: #b9c9df; }
.bundle-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; margin-top: 34px; }
.bundle-card { padding: 26px; border: 1px solid rgba(255, 255, 255, .15); border-radius: 22px; background: rgba(255, 255, 255, .065); }
.bundle-card.jamblea-bundle { background: linear-gradient(135deg, rgba(176, 250, 31, .12), rgba(255, 255, 255, .055)); }
.bundle-label { color: #71e8ff; font-size: .69rem; font-weight: 900; letter-spacing: .14em; }
.jamblea-bundle .bundle-label { color: #c9ff67; }
.bundle-card h4 { margin: 12px 0 8px; font-size: 1.3rem; }
.bundle-card p { min-height: 3.4em; margin: 0; color: #b7c6d9; font-size: .9rem; }
.bundle-card div { display: flex; flex-wrap: wrap; align-items: baseline; gap: 9px 14px; margin-top: 22px; }
.bundle-card strong { color: #fff; font-size: 1.08rem; }
.bundle-card del { color: #7f91aa; font-size: .78rem; }
.bundle-note { margin: 20px 0 0; color: #8092ac; font-size: .75rem; }

.ecosystem-panel {
  display: grid;
  overflow: hidden;
  padding: clamp(32px, 6vw, 62px);
  border-radius: 32px;
  color: #fff;
  background:
    linear-gradient(125deg, rgba(176, 250, 31, .1), transparent 47%),
    linear-gradient(145deg, #10254a, #07142c);
  grid-template-columns: 1.08fr .92fr;
  align-items: center;
  gap: clamp(34px, 7vw, 76px);
}
.ecosystem-copy h2 { margin: 0; font-size: clamp(2rem, 4.5vw, 3.5rem); line-height: 1.08; letter-spacing: -.045em; }
.ecosystem-copy > p:not(.eyebrow) { margin: 20px 0 0; color: #c1d0e3; }
.ecosystem-button { margin-top: 28px; border-color: transparent; color: #07142c; background: #c4ff58; }
.workflow-rail { display: grid; margin: 0; padding: 0; list-style: none; }
.workflow-rail li { position: relative; display: grid; min-height: 92px; padding: 14px 0 14px 54px; align-items: center; grid-template-columns: 42px 1fr; gap: 14px; }
.workflow-rail li:not(:last-child)::after { position: absolute; top: 65px; bottom: -27px; left: 20px; width: 1px; background: rgba(111, 232, 255, .32); content: ""; }
.workflow-rail li > span { display: grid; width: 42px; height: 42px; place-items: center; border: 1px solid rgba(111, 232, 255, .35); border-radius: 50%; color: #78eaff; background: #0b1c38; font-size: .72rem; font-weight: 900; }
.workflow-rail div { display: grid; gap: 2px; }
.workflow-rail strong { font-size: 1.1rem; }
.workflow-rail small { color: #9fb0c7; }

.feature-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.feature-card {
  min-height: 240px;
  padding: clamp(24px, 4vw, 38px);
  border: 1px solid var(--line);
  border-radius: 26px;
  background: var(--surface);
  box-shadow: 0 18px 50px rgba(16, 33, 61, .07);
}
.feature-card.wide { grid-column: 1 / -1; min-height: auto; background: linear-gradient(135deg, #eafcff, #edf0ff); }
.feature-number { color: #2b66e7; font-size: .78rem; font-weight: 900; letter-spacing: .12em; }
.feature-card h3 { margin: 18px 0 8px; font-size: 1.42rem; line-height: 1.3; }
.feature-card p { margin: 0; color: var(--muted); }

.screen-grid {
  display: grid;
  grid-template-columns: minmax(0, .82fr) minmax(0, 1.18fr) minmax(180px, .55fr);
  align-items: end;
  gap: clamp(16px, 3vw, 30px);
}
.screen-card {
  margin: 0;
  padding: clamp(14px, 2vw, 22px);
  border: 1px solid var(--line);
  border-radius: 28px;
  background: linear-gradient(155deg, #fff, #eaf2fb);
  box-shadow: 0 22px 54px rgba(16, 33, 61, .13);
}
.screen-card img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 20px;
  background: #071127;
}
.screen-card.phone img { max-height: 610px; object-fit: contain; }
.screen-card.tablet img { max-height: 560px; object-fit: contain; }
.screen-card.watch img { border-radius: 32%; }
.screen-card figcaption { display: grid; gap: 3px; margin-top: 16px; }
.screen-card figcaption strong { font-size: 1.05rem; }
.screen-card figcaption span { color: var(--muted); font-size: .9rem; }

.truth-panel {
  display: grid;
  padding: clamp(28px, 6vw, 56px);
  border-radius: 30px;
  color: #fff;
  background: linear-gradient(135deg, var(--navy-900), var(--navy-800));
  grid-template-columns: .8fr 1.2fr;
  gap: 40px;
}
.truth-panel h2 { margin: 0; font-size: clamp(1.9rem, 4vw, 2.8rem); line-height: 1.2; letter-spacing: -.035em; }
.truth-list { display: grid; gap: 16px; margin: 0; padding: 0; list-style: none; }
.truth-list li { padding-left: 26px; color: #d5e2f6; }
.truth-list li::before { float: left; width: 18px; margin-left: -26px; color: #6fe8ff; content: "✓"; font-weight: 900; }

.page-shell { min-height: 100vh; background: linear-gradient(180deg, var(--navy-950) 0 390px, var(--soft) 390px); }
.content-shell { width: min(940px, calc(100% - 36px)); margin: 0 auto; padding: 68px 0 72px; }
.page-header { padding: clamp(26px, 6vw, 56px); border: 1px solid rgba(255, 255, 255, .14); border-radius: 30px; color: #fff; background: linear-gradient(145deg, rgba(16, 37, 74, .96), rgba(8, 22, 47, .98)); box-shadow: 0 26px 60px rgba(0, 0, 0, .24); }
.page-header h1 { font-size: clamp(2.4rem, 6vw, 4.2rem); }
.page-header .lead { max-width: 730px; margin: 18px 0 0; color: #c9d8ec; font-size: 1.08rem; }
.effective { margin: 20px 0 0; color: #95a9c5; font-size: .9rem; }

.summary-grid { display: grid; margin-top: 22px; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.summary-card { padding: 22px; border: 1px solid var(--line); border-radius: 20px; background: #fff; }
.summary-card strong { display: block; color: #164ec4; }
.summary-card p { margin: 7px 0 0; color: var(--muted); font-size: .92rem; }

.toc, .policy section, .support-card, .notice-card {
  margin-top: 22px;
  padding: clamp(24px, 5vw, 42px);
  border: 1px solid var(--line);
  border-radius: 24px;
  background: var(--surface);
  box-shadow: 0 16px 44px rgba(16, 33, 61, .055);
}
.toc h2, .support-card h2, .notice-card h2 { margin-top: 0; }
.toc ol { margin: 0; padding-left: 24px; columns: 2; }
.toc li { margin: 5px 0; padding-left: 3px; }
.toc a { color: var(--ink); text-decoration: none; }
.toc a:hover { color: #2450da; text-decoration: underline; }
.policy section { scroll-margin-top: 86px; }
.policy h2 { display: flex; align-items: center; gap: 13px; margin: 0 0 18px; font-size: clamp(1.3rem, 4vw, 1.65rem); line-height: 1.35; }
.policy h2 span { display: inline-grid; flex: 0 0 36px; width: 36px; height: 36px; place-items: center; border-radius: 12px; color: #fff; background: linear-gradient(135deg, var(--cyan), var(--blue)); font-size: .92rem; }
.policy p:last-child, .policy ul:last-child { margin-bottom: 0; }
.policy li + li, .support-card li + li { margin-top: 8px; }
.policy table { width: 100%; border-collapse: collapse; }
.policy th, .policy td { padding: 13px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.policy th { color: var(--muted); font-size: .88rem; }

.contact-list { margin: 0; }
.contact-list div { display: grid; padding: 11px 0; border-bottom: 1px solid var(--line); grid-template-columns: 210px 1fr; gap: 16px; }
.contact-list div:last-child { border-bottom: 0; }
.contact-list dt { color: var(--muted); font-weight: 720; }
.contact-list dd { margin: 0; font-weight: 720; overflow-wrap: anywhere; }
.notice-card { border-color: #ffd5dc; background: #fff7f8; }
.notice-card strong { color: #a83249; }
.muted { color: var(--muted); }
.small { font-size: .9rem; }

.site-footer { padding: 40px 18px 48px; color: var(--muted); text-align: center; font-size: .9rem; }
.site-footer nav { display: flex; justify-content: center; flex-wrap: wrap; gap: 18px; }
.site-footer p { margin: 10px 0 0; }

@media (max-width: 760px) {
  .topbar { padding-inline: 16px; }
  .topnav a:not(.language-link) { display: none; }
  .hero { min-height: 0; grid-template-columns: 1fr; padding-top: 70px; }
  .hero-visual { min-height: 330px; }
  .feature-grid, .screen-grid, .truth-panel, .summary-grid, .product-grid, .bundle-grid, .ecosystem-panel { grid-template-columns: 1fr; }
  .brand-copy small { display: none; }
  .screen-card { width: min(100%, 540px); margin-inline: auto; }
  .screen-card.watch { width: min(72%, 300px); }
  .feature-card.wide { grid-column: auto; }
  .truth-panel { gap: 28px; }
  .product-card { min-height: 360px; }
  .product-card-head { align-items: flex-start; flex-direction: column; }
  .product-card h3 { margin-top: 38px; }
  .bundle-intro { grid-template-columns: 1fr; gap: 14px; }
  .bundle-intro .eyebrow { grid-column: auto; margin-bottom: 0; }
  .bundle-card p { min-height: auto; }
  .ecosystem-panel { gap: 28px; }
  .workflow-rail li { padding-left: 0; }
  .workflow-rail li:not(:last-child)::after { left: 20px; }
  .toc ol { columns: 1; }
  .contact-list div { grid-template-columns: 1fr; gap: 2px; }
  .policy table, .policy thead, .policy tbody, .policy tr, .policy th, .policy td { display: block; }
  .policy th { border-bottom: 0; padding-bottom: 2px; }
  .policy td { padding-top: 2px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .button { transition: none; }
  .button:hover { transform: none; }
}

@media print {
  .topbar, .skip-link, .actions, .site-footer nav { display: none; }
  .page-shell { background: #fff; }
  .content-shell { width: 100%; padding: 0; }
  .page-header { color: #000; background: #fff; box-shadow: none; }
  .page-header .lead, .effective { color: #333; }
  .toc, .policy section { break-inside: avoid; box-shadow: none; }
}