@font-face { font-family: "Pretendard"; src: url("assets/Pretendard-Regular.otf") format("opentype"); font-weight: 400; font-style: normal; font-display: swap; }
@font-face { font-family: "Pretendard"; src: url("assets/Pretendard-SemiBold.otf") format("opentype"); font-weight: 600; font-style: normal; font-display: swap; }
@font-face { font-family: "Pretendard"; src: url("assets/Pretendard-Bold.otf") format("opentype"); font-weight: 700; font-style: normal; font-display: swap; }
@font-face { font-family: "Pretendard"; src: url("assets/Pretendard-ExtraBold.otf") format("opentype"); font-weight: 800 900; font-style: normal; font-display: swap; }

:root {
  color-scheme: dark;
  --paper: #0f0f0f;
  --surface: #1e1e1e;
  --surface-raised: #2d2d2d;
  --ink: #f0f0f0;
  --muted: #bebebe;
  --quiet: #696969;
  --line: rgba(255, 255, 255, .12);
  --orange: #ff5b1b;
  --orange-soft: #ffba9f;
  --orange-dark: #c73217;
  --danger: #ed2b35;
  --content: 1160px;
  font-family: "Pretendard", -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Noto Sans KR", sans-serif;
  background: var(--paper);
  color: var(--ink);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; min-width: 320px; background: var(--paper); }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 4px; }
p { margin: 0; color: var(--muted); font-size: 17px; line-height: 1.7; }
h1, h2, h3 { margin: 0; letter-spacing: -.025em; }

.site-header { position: relative; z-index: 10; border-bottom: 1px solid var(--line); background: rgba(15, 15, 15, .94); backdrop-filter: blur(18px); }
.header-inner { width: min(var(--content), calc(100% - 48px)); min-height: 76px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; gap: 30px; }
.brand { display: inline-flex; align-items: center; gap: 11px; font-size: 22px; font-weight: 800; text-decoration: none; }
.brand img { border-radius: 10px; }
nav { display: flex; gap: 28px; }
nav a { color: var(--muted); font-size: 15px; font-weight: 700; text-decoration: none; }
nav a:hover, nav a[aria-current="page"] { color: var(--orange); }

.hero { width: min(var(--content), calc(100% - 48px)); min-height: 760px; margin: 0 auto; display: grid; grid-template-columns: minmax(0, 1fr) minmax(350px, 480px); align-items: center; gap: 80px; padding: 80px 0; }
.hero-copy { max-width: 650px; }
.eyebrow { color: var(--orange); font-size: 14px; font-weight: 850; letter-spacing: .08em; text-transform: uppercase; }
.hero h1 { margin-top: 18px; font-size: clamp(50px, 6.4vw, 82px); line-height: 1.08; }
.hero-description { max-width: 620px; margin-top: 28px; font-size: 20px; }
.primary-button { display: inline-flex; min-height: 54px; align-items: center; justify-content: center; gap: 10px; margin-top: 32px; padding: 0 24px; border-radius: 16px; background: var(--orange); color: white; font-weight: 800; text-decoration: none; }
.primary-button:hover { background: var(--orange-dark); }
.primary-button:focus-visible, a:focus-visible, summary:focus-visible { outline: 2px solid var(--orange-soft); outline-offset: 4px; }
.hero-phone, .phone-frame { overflow: hidden; border: 7px solid #323232; border-radius: 54px; background: #000; box-shadow: 0 28px 65px rgba(0, 0, 0, .42); }
.hero-phone { width: min(420px, 100%); justify-self: end; transform: rotate(2deg); }

.experience { width: min(var(--content), calc(100% - 48px)); margin: 0 auto; padding: 120px 0 140px; border-top: 1px solid var(--line); }
.section-heading { max-width: 780px; margin-bottom: 64px; }
.section-heading h2 { margin-top: 14px; font-size: clamp(38px, 5vw, 58px); line-height: 1.18; }
.flow-grid { margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 46px; list-style: none; }
.step-number { display: grid; width: 40px; height: 40px; place-items: center; border-radius: 50%; background: var(--orange); color: white; font-weight: 850; }
.flow-grid h3 { margin-top: 18px; font-size: 23px; }
.flow-grid li > p { min-height: 86px; margin-top: 10px; font-size: 15px; }
.phone-frame { margin-top: 20px; border-width: 6px; border-radius: 44px; }

.feature-band { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--surface); }
.feature-grid { width: min(1060px, calc(100% - 48px)); margin: 0 auto; display: grid; grid-template-columns: repeat(3, 1fr); padding: 84px 0; }
.feature-grid article { padding: 0 42px; text-align: center; }
.feature-grid article + article { border-left: 1px solid var(--line); }
.feature-icon { display: grid; width: 92px; height: 92px; margin: 0 auto 24px; place-items: center; border-radius: 50%; background: var(--surface-raised); color: var(--orange); font-size: 34px; font-weight: 850; }
.feature-grid h2 { font-size: 21px; }
.feature-grid p { margin-top: 12px; font-size: 15px; }

.safety-note { width: min(980px, calc(100% - 48px)); margin: 0 auto; padding: 88px 0; display: flex; align-items: center; justify-content: space-between; gap: 56px; }
.safety-note h2 { margin-top: 10px; font-size: 30px; }
.safety-note p:not(.eyebrow) { max-width: 670px; margin-top: 12px; }
.text-link { flex: 0 0 auto; color: var(--orange); font-weight: 800; text-decoration: none; }
.text-link:hover { text-decoration: underline; }

.site-footer { border-top: 1px solid var(--line); background: #0a0a0a; }
.footer-inner { width: min(var(--content), calc(100% - 48px)); min-height: 150px; margin: 0 auto; display: grid; grid-template-columns: 1fr auto; align-content: center; gap: 14px 36px; }
.footer-links { display: flex; gap: 22px; }
.footer-links a { color: var(--muted); font-size: 14px; font-weight: 700; }
.footer-inner > p { grid-column: 1 / -1; font-size: 13px; }
.site-footer.compact .footer-inner { min-height: 120px; grid-template-columns: auto 1fr auto; align-items: center; }
.site-footer.compact .footer-links { justify-content: center; }
.site-footer.compact p { grid-column: auto; }

.document-main, .legal-main { width: min(1080px, calc(100% - 48px)); margin: 0 auto; }
.document-hero { min-height: 430px; display: grid; grid-template-columns: 1fr 330px; align-items: center; gap: 50px; border-bottom: 1px solid var(--line); }
.document-hero h1, .legal-header h1 { margin-top: 12px; font-size: clamp(48px, 6vw, 68px); line-height: 1.08; }
.document-hero p:not(.eyebrow) { margin-top: 20px; font-size: 20px; }
.document-hero img { width: 270px; justify-self: end; }
.support-contact { display: flex; align-items: center; justify-content: space-between; gap: 48px; padding: 66px 0; border-bottom: 1px solid var(--line); }
.support-contact h2, .faq > h2 { font-size: 28px; }
.support-contact p { max-width: 660px; margin-top: 10px; }
.support-contact .primary-button { flex: 0 0 auto; margin-top: 0; }
.team-credit { padding: 66px 0; border-bottom: 1px solid var(--line); }
.team-credit h2 { margin-top: 10px; font-size: 28px; }
.team-credit p:last-child { margin-top: 12px; color: var(--ink); font-weight: 600; word-break: keep-all; }
.faq { padding: 72px 0 112px; }
.faq > h2 { margin-bottom: 26px; }
.faq details { border-top: 1px solid var(--line); }
.faq details:last-child { border-bottom: 1px solid var(--line); }
.faq summary { position: relative; padding: 24px 44px 24px 0; cursor: pointer; font-size: 18px; font-weight: 800; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 6px; top: 20px; color: var(--orange); font-size: 26px; font-weight: 500; }
.faq details[open] summary::after { content: "−"; }
.faq details p { max-width: 820px; padding: 0 44px 26px 0; }

.legal-header { padding: 92px 0 60px; border-bottom: 1px solid var(--line); }
.legal-header > p:first-child { color: var(--orange); font-size: 14px; font-weight: 800; }
.legal-header .lede { max-width: 820px; margin-top: 26px; font-size: 20px; }
.legal-layout { display: grid; grid-template-columns: 220px minmax(0, 740px); gap: 80px; padding: 70px 0 120px; }
.legal-layout aside { position: sticky; top: 28px; align-self: start; display: flex; flex-direction: column; gap: 14px; }
.legal-layout aside a { color: var(--muted); font-size: 14px; font-weight: 700; text-decoration: none; }
.legal-layout aside a:hover { color: var(--orange); }
.legal-copy section { scroll-margin-top: 28px; }
.legal-copy section + section { margin-top: 52px; }
.legal-copy h2 { margin-bottom: 14px; font-size: 24px; }
.legal-copy a { color: var(--orange); }

@media (max-width: 860px) {
  .header-inner { width: min(100% - 34px, 680px); min-height: 68px; }
  nav { gap: 18px; }
  .hero { width: min(100% - 36px, 660px); min-height: auto; grid-template-columns: 1fr; gap: 58px; padding: 84px 0 100px; text-align: center; }
  .hero-copy { margin: 0 auto; }
  .hero-description { margin-left: auto; margin-right: auto; }
  .hero-phone { width: min(390px, 78vw); justify-self: center; transform: none; }
  .experience { width: min(100% - 36px, 560px); padding: 96px 0; }
  .section-heading { text-align: center; }
  .flow-grid { grid-template-columns: 1fr; gap: 80px; }
  .flow-grid li { max-width: 390px; margin: 0 auto; }
  .flow-grid li > p { min-height: 0; }
  .feature-grid { width: min(100% - 36px, 560px); grid-template-columns: 1fr; padding: 28px 0; }
  .feature-grid article { padding: 46px 0; }
  .feature-grid article + article { border-top: 1px solid var(--line); border-left: 0; }
  .safety-note { width: min(100% - 36px, 620px); align-items: flex-start; flex-direction: column; padding: 68px 0; }
  .document-main, .legal-main { width: min(100% - 36px, 640px); }
  .document-hero { min-height: 430px; grid-template-columns: 1fr 190px; gap: 20px; }
  .document-hero img { width: 190px; }
  .support-contact { align-items: flex-start; flex-direction: column; }
  .legal-layout { grid-template-columns: 1fr; gap: 40px; }
  .legal-layout aside { position: static; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); padding-bottom: 30px; border-bottom: 1px solid var(--line); }
  .footer-inner, .site-footer.compact .footer-inner { width: min(100% - 36px, 620px); min-height: auto; grid-template-columns: 1fr; padding: 42px 0; }
  .site-footer.compact .footer-links { justify-content: flex-start; }
  .footer-inner > p, .site-footer.compact p { grid-column: 1; }
}

@media (max-width: 520px) {
  p { font-size: 16px; }
  .brand { font-size: 20px; }
  nav a:first-child { display: none; }
  .hero h1 { font-size: 46px; }
  .hero-description { font-size: 17px; }
  .hero-phone, .phone-frame { border-width: 5px; border-radius: 38px; }
  .section-heading h2 { font-size: 36px; }
  .document-hero { min-height: 520px; grid-template-columns: 1fr; padding: 64px 0 0; overflow: hidden; text-align: center; }
  .document-hero img { width: 230px; justify-self: center; margin-bottom: -30px; }
  .support-contact .primary-button { width: 100%; }
  .legal-header { padding-top: 64px; }
  .legal-layout { padding-top: 42px; }
}

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }