/* Public introduction only. Original brand artwork is used without alteration. */
:root {
  --paper: #faf7f5;
  --ink: #342830;
  --muted: #655660;
  --line: #e1d8dc;
  --red: #fe3d45;
  --burgundy: #170b10;
  --link: #a32137;
  --container: 1200px;
}
*, *::before, *::after { box-sizing: border-box; }
body {
  margin: 0; background: var(--paper); color: var(--ink);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Malgun Gothic", "Noto Sans KR", sans-serif;
  font-size: 16px; line-height: 1.85; -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; height: auto; }
a { color: var(--link); text-underline-offset: 5px; text-decoration-thickness: 1px; }
button, a, summary { -webkit-tap-highlight-color: transparent; }
h1, h2, h3, p { margin: 0; }
h1, h2, h3 { font-weight: 700; letter-spacing: -.045em; line-height: 1.45; }
h1, h2, h3, p, li, a { word-break: keep-all; overflow-wrap: anywhere; }
[id] { scroll-margin-top: 112px; }
a:focus-visible, summary:focus-visible {
  outline: 3px solid #ae173b; outline-offset: 5px; border-radius: 3px;
}
.container { width: min(calc(100% - 64px), var(--container)); margin-inline: auto; }
.skip-link {
  position: fixed; top: 12px; left: 16px; z-index: 200; transform: translateY(-180%);
  padding: 11px 18px; border: 2px solid #ffb2bd; border-radius: 5px;
  background: #fff; color: #801930; font-size: 14px; font-weight: 700;
}
.skip-link:focus { transform: translateY(0); }
.button {
  display: inline-flex; align-items: center; justify-content: center; gap: 22px;
  min-height: 52px; max-width: 100%; padding: 13px 22px;
  border: 1px solid transparent; border-radius: 7px;
  font-size: 14px; font-weight: 750; line-height: 1.75; text-decoration: none;
  transition: background-color .15s, border-color .15s;
}
.button-primary { background: var(--red); border-color: var(--red); color: #230a10; }
.button-primary:hover { background: #ff6570; border-color: #ff6570; }
.button-primary > span:not(.external-label) { font-size: 21px; font-weight: 500; }
.button-secondary { background: transparent; border-color: #a88994; color: #fff2f5; }
.button-secondary:hover { background: #ffffff0d; border-color: #ecc0cd; }
.text-link {
  display: inline-flex; align-items: center; gap: 17px; min-height: 44px;
  font-size: 14px; font-weight: 600; line-height: 1.75; text-decoration: none;
}
.text-link:hover { text-decoration: underline; }

/* Compact, always-available brand and login navigation. */
.site-header {
  position: sticky; top: 0; z-index: 100;
  border-bottom: 1px solid #54313e; background: #170b10;
}
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 30px; min-height: 88px; }
.brand { display: inline-flex; align-items: center; flex-shrink: 0; min-height: 48px; }
.brand img { width: 190px; height: auto; }
.header-nav { display: flex; align-items: center; gap: 27px; }
.header-nav a {
  display: inline-flex; align-items: center; justify-content: center; min-height: 44px;
  color: #eedde4; font-size: 13px; font-weight: 600; text-decoration: none; white-space: nowrap;
}
.header-nav a:hover { color: #ffbbc5; text-decoration: underline; }
.header-nav .header-login {
  min-width: 89px; padding: 8px 21px; border: 1px solid #a46172; border-radius: 6px;
  color: #ffe8ed; font-weight: 700;
}
.header-nav .header-login:hover { border-color: #f1a9b8; background: #3b1b28; text-decoration: none; }
.site-header a:focus-visible, .hero a:focus-visible, .contact-section a:focus-visible, .site-footer a:focus-visible { outline-color: #ffc1cf; }

/* Editorial hero: a quiet dark field and a useful introduction card. */
.hero {
  padding-block: 85px 91px;
  background: radial-gradient(ellipse at 88% 10%, #4a1b2c 0, #251019 39%, #170b10 75%);
  color: #fff4f7; border-bottom: 1px solid #4c2735;
}
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(0, .9fr); gap: 65px; align-items: center; }
.hero-copy { min-width: 0; }
.eyebrow { color: #f6a6b5; font-size: 12px; font-weight: 700; letter-spacing: .045em; }
.hero h1 { margin-top: 24px; font-size: clamp(39px, 4.25vw, 61px); line-height: 1.35; letter-spacing: -.06em; }
.hero-lead { max-width: 570px; margin-top: 29px; color: #d9c9d0; font-size: 17px; line-height: 1.95; }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 15px 25px; margin-top: 34px; }
.hero-actions .text-link { color: #f2c0cc; }
.hero-note { margin-top: 22px; color: #bfa9b3; font-size: 12px; }
.intro-card {
  min-width: 0; padding: 33px 31px 16px; border: 1px solid #76505e; border-radius: 14px;
  background: #321c26; box-shadow: 0 18px 48px #08020629;
}
.card-kicker { color: #ffb5c2; font-size: 11px; font-weight: 650; letter-spacing: .035em; }
.intro-card h2 { margin-top: 15px; color: #fff4f7; font-size: 23px; line-height: 1.6; letter-spacing: -.04em; }
.intro-points { margin: 25px 0 0; padding: 0; list-style: none; }
.intro-points li { display: grid; grid-template-columns: 25px minmax(0, 1fr); gap: 16px; padding-block: 19px; border-top: 1px solid #67444f; }
.point-number { padding-top: 4px; color: #ffb0bf; font-size: 11px; font-weight: 600; }
.intro-points strong { color: #f6e7ed; font-size: 14px; font-weight: 650; }
.intro-points p { margin-top: 6px; color: #d7c1cb; font-size: 14px; line-height: 1.85; }

/* Desktop reading rail; the same navigation becomes a local index on small screens. */
.page-layout { display: grid; grid-template-columns: 196px minmax(0, 1fr); gap: 77px; padding-block: 78px 92px; }
.section-nav {
  position: sticky; top: 116px; align-self: start; display: grid; gap: 3px;
  padding: 21px 0 15px; border-top: 2px solid #9d3149; border-bottom: 1px solid #d9c9d0;
}
.section-nav > p { margin-bottom: 16px; padding-inline: 14px; color: #7a4c5d; font-size: 12px; font-weight: 750; letter-spacing: .035em; }
.section-nav a {
  display: flex; align-items: center; min-height: 44px; padding: 9px 14px; border-radius: 6px;
  color: #5b414d; font-size: 13px; font-weight: 550; line-height: 1.8; text-decoration: none;
}
.section-nav a:hover { background: #f0e6ea; color: #8c1836; }
.page-content { min-width: 0; }
.content-section { padding-bottom: 55px; margin-bottom: 56px; border-bottom: 1px solid var(--line); }
.section-label { margin-bottom: 15px; color: #92354f; font-size: 11px; font-weight: 750; letter-spacing: .025em; }
.content-section h2, .contact-section h2 { color: #30202a; font-size: 31px; line-height: 1.55; letter-spacing: -.045em; }
.content-section > p:not(.section-label) { margin-top: 22px; color: #544650; font-size: 16px; line-height: 1.95; }
.content-section a { font-weight: 600; }
.page-content p a { padding-block: 4px; }
.notice {
  margin-top: 28px; padding: 23px 25px; border-left: 3px solid #956677; border-radius: 0 6px 6px 0;
  background: #f0e9ec; color: #584550;
}
.notice strong { display: block; color: #654153; font-size: 14px; font-weight: 700; }
.notice p { margin-top: 8px; font-size: 14px; line-height: 1.9; }
.notice-important { border-left-color: #ba2747; background: #f6e9ec; }
.notice-important strong { color: #8a203b; }

/* Sequence and evidence checks, not promotional metrics. */
.steps { margin: 28px 0 0; padding: 0; list-style: none; }
.steps li { display: grid; grid-template-columns: 39px minmax(0, 1fr); gap: 20px; padding-block: 25px; border-top: 1px solid #dfd2d8; }
.step-number {
  display: flex; align-items: center; justify-content: center; width: 36px; height: 36px;
  border: 1px solid #cfb2bc; border-radius: 50%; color: #922d48; font-size: 13px; font-weight: 700;
}
.steps h3 { padding-top: 4px; color: #46313e; font-size: 19px; line-height: 1.6; }
.steps p { margin-top: 12px; color: #64515e; font-size: 15px; line-height: 1.95; }
.content-section > .help-line { margin-top: 7px; padding-top: 17px; border-top: 1px solid #dfd2d8; color: #6f5866; font-size: 14px; }
.check-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 17px; margin-top: 28px; }
.check-card { min-width: 0; padding: 24px 25px; border: 1px solid #e0d3d9; border-radius: 9px; background: #fffdfc; }
.check-number { display: block; margin-bottom: 20px; color: #97506a; font-size: 11px; font-weight: 750; }
.check-card h3 { color: #513244; font-size: 18px; line-height: 1.65; }
.check-card p { margin-top: 12px; color: #6a5462; font-size: 15px; line-height: 1.95; }

/* Native details stay fully functional without JavaScript. */
.faq-list { margin-top: 28px; border-top: 1px solid #bca1ae; }
.faq-list details { border-bottom: 1px solid #decdd5; }
.faq-list summary {
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
  min-height: 66px; padding: 20px 2px; list-style: none; cursor: pointer;
  color: #563246; font-size: 16px; font-weight: 650; line-height: 1.85;
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; flex: 0 0 19px; color: #964866; font-size: 24px; font-weight: 400; line-height: 1; text-align: center; }
.faq-list details[open] summary::after { content: "−"; }
.faq-list details[open] summary { color: #7f2348; }
.faq-list details > p { padding: 0 39px 24px 2px; color: #6a5060; font-size: 15px; line-height: 1.95; }

/* One clear route to the existing contact channel. */
.contact-section { padding: 36px 37px; border: 1px solid #6a344c; border-radius: 12px; background: #2a1220; color: #ecdbe4; }
.contact-section .section-label { color: #eeb2cd; }
.contact-section h2 { color: #fff3f9; font-size: 29px; }
.contact-section > p:not(.section-label):not(.contact-note) { margin-top: 19px; color: #d8c0cf; font-size: 15px; line-height: 1.95; }
.contact-checklist { margin: 24px 0 0; padding-left: 20px; color: #e3c9d9; font-size: 14px; line-height: 1.95; }
.contact-checklist li { margin-block: 10px; padding-left: 3px; }
.contact-checklist li::marker { color: #f4a3c8; }
.contact-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-top: 28px; }
.contact-actions .button { gap: 8px; font-size: 13px; }
.contact-actions .button-primary { flex-wrap: wrap; }
.external-label { font-size: 11px; font-weight: 600; white-space: nowrap; }
.contact-note { margin-top: 21px; color: #c6a9ba; font-size: 12px; line-height: 1.85; }

/* Small secondary footer. */
.site-footer { padding-block: 31px 36px; border-top: 1px solid #4b2838; background: #1c1017; color: #d7c1cd; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 26px; }
.footer-inner strong { color: #f8e9f1; font-size: 19px; font-weight: 700; }
.footer-inner p { margin-top: 7px; color: #c1a7b6; font-size: 12px; }
.footer-inner nav { display: flex; align-items: center; gap: 26px; flex-shrink: 0; }
.footer-inner nav a { display: inline-flex; align-items: center; min-height: 44px; color: #e4c9d9; font-size: 13px; text-decoration: none; }
.footer-inner nav a:hover { text-decoration: underline; }

@media (max-width: 1100px) {
  .hero { padding-block: 64px 72px; }
  .hero-grid { gap: 35px; grid-template-columns: minmax(0, 1.25fr) minmax(0, .9fr); }
  .hero h1 { font-size: 44px; }
  .hero-lead { font-size: 16px; }
  .hero-actions { gap: 13px 19px; }
  .intro-card { padding: 28px 25px 12px; }
  .intro-card h2 { font-size: 21px; }
  .intro-points li { grid-template-columns: 21px minmax(0, 1fr); gap: 12px; }
  .page-layout { grid-template-columns: 177px minmax(0, 1fr); gap: 39px; padding-block: 63px 78px; }
  .content-section h2 { font-size: 29px; }
  .check-card { padding: 22px; }
  .contact-section { padding: 31px 29px; }
}
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; gap: 39px; }
  .hero-copy { max-width: 710px; }
  .hero h1 { font-size: 49px; }
  .hero-lead { max-width: 650px; }
  .intro-card { padding: 27px 29px 9px; }
  .intro-card h2 { font-size: 25px; }
  .intro-points { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; margin-top: 23px; }
  .intro-points li { display: block; padding-block: 18px 23px; }
  .point-number { display: block; padding-top: 0; margin-bottom: 11px; }
  .intro-points p { font-size: 14px; }
  .page-layout { grid-template-columns: 1fr; gap: 41px; padding-top: 39px; }
  .section-nav { position: static; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 3px 12px; padding: 20px 15px; border: 1px solid #dbccd4; border-radius: 8px; background: #f3ecef; }
  .section-nav > p { grid-column: 1 / -1; margin-bottom: 8px; }
  .section-nav a { font-size: 13px; }
  .content-section { padding-bottom: 45px; margin-bottom: 43px; }
}
@media (max-width: 640px) {
  [id] { scroll-margin-top: 98px; }
  .container { width: calc(100% - 36px); }
  .header-inner { min-height: 74px; gap: 18px; }
  .brand img { width: 158px; }
  .header-nav { gap: 0; }
  .header-nav a:not(.header-login) { display: none; }
  .header-nav .header-login { min-width: 76px; padding-inline: 17px; font-size: 12px; }
  .hero { padding-block: 41px 45px; }
  .hero-grid { gap: 31px; }
  .eyebrow { font-size: 11px; }
  .hero h1 { margin-top: 20px; font-size: clamp(29px, 8.15vw, 42px); line-height: 1.42; }
  .hero-lead { margin-top: 23px; font-size: 15px; }
  .hero-actions { align-items: flex-start; flex-direction: column; gap: 12px; margin-top: 26px; }
  .button { min-height: 50px; padding: 12px 18px; font-size: 14px; }
  .hero-actions .text-link { font-size: 13px; }
  .hero-note { margin-top: 16px; font-size: 11px; }
  .intro-card { padding: 24px 23px 8px; border-radius: 10px; }
  .intro-card h2 { margin-top: 13px; font-size: 21px; }
  .intro-points { display: block; margin-top: 23px; }
  .intro-points li { display: grid; grid-template-columns: 23px minmax(0, 1fr); gap: 13px; padding-block: 17px; }
  .point-number { margin: 4px 0 0; }
  .intro-points strong, .intro-points p { font-size: 14px; }
  .page-layout { gap: 35px; padding-block: 28px 49px; }
  .section-nav { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 3px 7px; padding: 17px 10px; }
  .section-nav > p { padding-inline: 11px; font-size: 11px; }
  .section-nav a { padding-inline: 11px; font-size: 12px; }
  .section-label { margin-bottom: 13px; font-size: 11px; }
  .content-section { padding-bottom: 35px; margin-bottom: 35px; }
  .content-section h2 { font-size: 26px; line-height: 1.6; }
  .content-section > p:not(.section-label) { margin-top: 20px; font-size: 15px; line-height: 1.95; }
  .notice { margin-top: 24px; padding: 21px 20px; }
  .notice strong, .notice p { font-size: 14px; }
  .steps { margin-top: 23px; }
  .steps li { grid-template-columns: 30px minmax(0, 1fr); gap: 14px; padding-block: 23px; }
  .step-number { width: 29px; height: 29px; font-size: 12px; }
  .steps h3 { padding-top: 0; font-size: 18px; }
  .steps p { margin-top: 12px; font-size: 14px; }
  .content-section > .help-line { margin-top: 4px; font-size: 14px; }
  .check-grid { grid-template-columns: 1fr; gap: 14px; margin-top: 25px; }
  .check-card { padding: 23px; }
  .check-number { margin-bottom: 15px; }
  .check-card h3 { font-size: 18px; }
  .check-card p { margin-top: 10px; font-size: 14px; }
  .faq-list { margin-top: 23px; }
  .faq-list summary { min-height: 64px; padding-block: 19px; gap: 17px; font-size: 15px; }
  .faq-list details > p { padding-right: 7px; padding-bottom: 23px; font-size: 14px; }
  .contact-section { padding: 27px 22px; border-radius: 9px; }
  .contact-section h2 { font-size: 26px; }
  .contact-section > p:not(.section-label):not(.contact-note) { font-size: 14px; }
  .contact-checklist { padding-left: 18px; font-size: 14px; }
  .contact-checklist li { padding-left: 1px; }
  .contact-actions { align-items: stretch; flex-direction: column; gap: 11px; margin-top: 24px; }
  .contact-actions .button { padding-inline: 13px; font-size: 13px; }
  .contact-note { margin-top: 19px; font-size: 11px; }
  .site-footer { padding-block: 27px 30px; }
  .footer-inner { align-items: flex-start; flex-direction: column; gap: 16px; }
  .footer-inner p { font-size: 11px; }
  .footer-inner nav { gap: 27px; }
  .footer-inner nav a { font-size: 12px; }
}
@media (max-width: 359px) {
  .container { width: calc(100% - 32px); }
  .brand img { width: 148px; }
  .header-nav .header-login { min-width: 72px; }
  .intro-card { padding-inline: 20px; }
  .intro-card h2 { font-size: 20px; }
  .content-section h2, .contact-section h2 { font-size: 25px; }
  .contact-section { padding-inline: 18px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}
@media print {
  .site-header, .section-nav, .hero-actions, .contact-actions, .site-footer { display: none !important; }
  .container { width: 100%; }
  .hero, .intro-card, .contact-section { background: #fff; color: #222; box-shadow: none; border-color: #777; }
  .hero *, .intro-card *, .contact-section * { color: #222; }
  .hero, .page-layout { padding-block: 20px; }
  .hero-grid, .page-layout { display: block; }
  .intro-card { margin-top: 25px; }
}