:root {
  --navy: #1b2a4a;
  --navy-deep: #121d35;
  --blue: #1f5fbf;
  --blue-soft: #e8f0fb;
  --ink: #1d2433;
  --ink-2: #4a5468;
  --line: #dfe3ea;
  --bg: #ffffff;
  --bg-alt: #f5f7fa;
  --radius: 14px;
  --wrap: 1120px;
  --font: "Pretendard Variable", Pretendard, -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body { margin: 0; font-family: var(--font); font-size: 17px; line-height: 1.7; color: var(--ink); background: var(--bg); word-break: keep-all; overflow-wrap: anywhere; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--blue); text-underline-offset: 3px; }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible { outline: 3px solid #f2b705; outline-offset: 2px; }
h1, h2, h3 { line-height: 1.3; letter-spacing: -0.02em; color: var(--navy); margin: 0 0 .5em; }
h1 { font-size: clamp(30px, 5vw, 46px); font-weight: 800; }
h2 { font-size: clamp(22px, 3vw, 28px); font-weight: 750; }
h3 { font-size: 19px; font-weight: 700; }
p { margin: 0 0 1em; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 20px; }
.narrow { max-width: 760px; }
.sr, .skip:not(:focus) { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip:focus { position: fixed; top: 8px; left: 8px; z-index: 100; background: #fff; padding: 8px 14px; border-radius: 8px; }

/* header */
.site-header { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,.96); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.brand { display: flex; flex-direction: column; text-decoration: none; line-height: 1.15; }
.brand-sub { font-size: 12px; color: var(--ink-2); letter-spacing: .02em; }
.brand-name { font-size: 22px; font-weight: 800; color: var(--navy); letter-spacing: .12em; }
.site-nav ul { list-style: none; display: flex; gap: 6px; margin: 0; padding: 0; }
.site-nav a { display: block; padding: 10px 14px; border-radius: 10px; color: var(--ink); font-weight: 600; text-decoration: none; }
.site-nav a:hover { background: var(--bg-alt); }
.site-nav a[aria-current="page"] { color: var(--blue); background: var(--blue-soft); }
.site-nav li:last-child a { background: var(--navy); color: #fff; }
.site-nav li:last-child a:hover { background: var(--navy-deep); }
.menu-btn { display: none; width: 48px; height: 48px; border: 0; background: transparent; border-radius: 10px; cursor: pointer; }
.bars, .bars::before, .bars::after { display: block; width: 24px; height: 2.5px; background: var(--navy); border-radius: 2px; position: relative; margin: 0 auto; transition: transform .2s, background .2s; }
.bars::before, .bars::after { content: ""; position: absolute; left: 0; }
.bars::before { top: -7px; } .bars::after { top: 7px; }
.menu-btn[aria-expanded="true"] .bars { background: transparent; }
.menu-btn[aria-expanded="true"] .bars::before { transform: translateY(7px) rotate(45deg); }
.menu-btn[aria-expanded="true"] .bars::after { transform: translateY(-7px) rotate(-45deg); }

/* buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 52px; padding: 12px 22px; border-radius: 12px; font-weight: 700; font-size: 17px; text-decoration: none; border: 2px solid transparent; cursor: pointer; font-family: inherit; }
.btn-primary { background: var(--blue); color: #fff; }
.btn-primary:hover { background: #184e9f; }
.btn-ghost { background: #fff; color: var(--navy); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--navy); }
.btn-block { width: 100%; }
.quick { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }

/* hero */
.hero { background: linear-gradient(180deg, #f3f6fb 0%, #ffffff 100%); border-bottom: 1px solid var(--line); }
.hero-inner { display: grid; grid-template-columns: 1.25fr .75fr; gap: 48px; align-items: end; padding-top: 56px; }
.hero-text { padding-bottom: 56px; }
.eyebrow { color: var(--blue); font-weight: 700; font-size: 15px; margin-bottom: 12px; }
.hero h1 span { color: var(--blue); }
.lead { font-size: clamp(17px, 2vw, 20px); color: var(--ink-2); max-width: 36em; }
.hero-photo { margin: 0; justify-self: center; width: 100%; max-width: 380px; }
.hero-photo img { border-radius: 200px 200px 0 0; background: #fff; }

/* sections */
.section { padding: 64px 0; }
.section-alt { background: var(--bg-alt); }
.section-head { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; margin-bottom: 24px; }
.section-head h2 { margin: 0; }
.more { font-weight: 600; white-space: nowrap; }
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); transition: border-color .15s, box-shadow .15s, transform .15s; }
.card:hover { border-color: #b9c6dc; box-shadow: 0 6px 20px rgba(27,42,74,.08); transform: translateY(-2px); }
.card-link { display: block; padding: 22px; color: inherit; text-decoration: none; height: 100%; }
.card h3 { margin: 8px 0; }
.card .summary { color: var(--ink-2); font-size: 16px; margin: 0; }
.meta { display: flex; align-items: center; gap: 10px; font-size: 14px; color: var(--ink-2); margin: 0; }
.badge { display: inline-block; padding: 2px 10px; border-radius: 999px; background: var(--blue-soft); color: var(--blue); font-weight: 700; font-size: 13px; text-decoration: none; }

.pillars { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.pillars li { background: #fff; border-radius: var(--radius); padding: 26px; border-top: 4px solid var(--navy); }
.pillars .num { display: block; font-size: 14px; font-weight: 800; color: var(--blue); margin-bottom: 8px; letter-spacing: .08em; }
.pillars p { color: var(--ink-2); margin: 0; font-size: 16px; }

.news-list { list-style: none; padding: 0; margin: 0 0 20px; border-top: 1px solid var(--line); }
.news-list a { display: flex; justify-content: space-between; gap: 20px; padding: 18px 4px; border-bottom: 1px solid var(--line); color: var(--ink); text-decoration: none; }
.news-list a:hover .news-title { color: var(--blue); text-decoration: underline; }
.news-title { font-weight: 600; }
.news-meta { color: var(--ink-2); font-size: 15px; white-space: nowrap; }

.cta { background: var(--navy); color: #fff; padding: 56px 0; }
.cta h2 { color: #fff; }
.cta p { color: #c9d3e6; }
.cta .btn-ghost { background: transparent; color: #fff; border-color: rgba(255,255,255,.4); }
.cta .btn-ghost:hover { border-color: #fff; }

/* page head */
.page-head { background: var(--bg-alt); padding: 48px 0 40px; border-bottom: 1px solid var(--line); }
.page-head .meta { margin-bottom: 14px; }

/* about */
.about { display: grid; grid-template-columns: 320px 1fr; gap: 48px; align-items: start; }
.about-photo { margin: 0; position: sticky; top: 92px; }
.about-photo img { border-radius: var(--radius); }
.about-body h2 { margin-top: 40px; font-size: 22px; }
.facts { margin: 0; display: grid; gap: 0; border-top: 2px solid var(--navy); }
.facts div { display: grid; grid-template-columns: 120px 1fr; padding: 14px 4px; border-bottom: 1px solid var(--line); }
.facts dt { font-weight: 700; color: var(--navy); }
.facts dd { margin: 0; }
.timeline { list-style: none; padding: 0; margin: 0; }
.timeline li { padding: 10px 0 10px 22px; position: relative; border-bottom: 1px dashed var(--line); }
.timeline li::before { content: ""; position: absolute; left: 4px; top: 21px; width: 8px; height: 8px; border-radius: 50%; background: var(--blue); }
.tag { display: inline-block; font-size: 13px; font-weight: 700; padding: 0 7px; border-radius: 6px; margin-right: 8px; }
.tag-now { background: var(--navy); color: #fff; }
.tag-past { background: #e9ecf1; color: var(--ink-2); }
.philosophy { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.philosophy li { background: var(--bg-alt); border-radius: 12px; padding: 16px 18px; display: grid; gap: 4px; }
.philosophy span { color: var(--ink-2); }
.source-note { font-size: 15px; color: var(--ink-2); margin-top: 28px; }

/* sponsor */
.sponsor-letter { margin-top: 20px; font-size: 18px; color: var(--ink); }
.sponsor-sign { text-align: right; font-weight: 700; color: var(--navy); margin: 8px 0 0; }
.sponsor { padding-bottom: 64px; }
.sponsor section { padding: 48px 0 8px; border-bottom: 1px solid var(--line); }
.sponsor section:last-child { border-bottom: 0; }
.sponsor ul { padding-left: 1.3em; }
.sponsor li { margin-bottom: 6px; }
.passbook { background: var(--navy); color: #fff; border-radius: var(--radius); padding: 30px 24px 22px; position: relative; overflow: hidden; }
.passbook::after { content: ""; position: absolute; left: 0; right: 0; top: 0; height: 6px; background: #f2b705; }
.passbook dl { margin: 0; display: grid; grid-template-columns: 88px 1fr; gap: 6px 16px; }
.passbook dt { color: #c9d3e6; font-size: 15px; }
.passbook dd { margin: 0; font-weight: 600; }
.passbook .acct { font-size: clamp(26px, 5.5vw, 34px); font-weight: 800; letter-spacing: .04em; margin: 20px 0; }
.passbook .copy { width: 100%; background: #f2b705; color: var(--navy-deep); }
.passbook .copy:hover { background: #ffc61a; }
.copy-status { min-height: 1.5em; margin: 8px 0 0; font-size: 15px; color: #c9d3e6; }
.steps { list-style: none; padding: 0 !important; margin: 0 0 24px; counter-reset: s; }
.steps li { counter-increment: s; position: relative; padding-left: 48px; margin-bottom: 20px !important; }
.steps li::before { content: counter(s); position: absolute; left: 0; top: 2px; width: 32px; height: 32px; border-radius: 50%; background: var(--blue-soft); color: var(--blue); font-weight: 800; display: grid; place-items: center; font-size: 15px; }
.steps strong { display: block; color: var(--navy); }
.sponsor-table { width: 100%; border-collapse: collapse; margin: 8px 0 16px; border-top: 2px solid var(--navy); }
.sponsor-table th, .sponsor-table td { text-align: left; padding: 14px 4px; border-bottom: 1px solid var(--line); vertical-align: top; }
.sponsor-table th { font-weight: 500; color: var(--ink-2); width: 45%; }
.sponsor-table td { font-weight: 700; color: var(--navy); }
.sponsor-example { background: var(--blue-soft); border-radius: 12px; padding: 16px 20px; }

/* filters */
.filters { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 24px; }
.chip { font: inherit; font-size: 15px; font-weight: 600; padding: 8px 16px; min-height: 44px; border-radius: 999px; border: 1px solid var(--line); background: #fff; color: var(--ink); cursor: pointer; }
.chip span { color: var(--ink-2); font-weight: 500; margin-left: 2px; }
.chip[aria-pressed="true"] { background: var(--navy); border-color: var(--navy); color: #fff; }
.chip[aria-pressed="true"] span { color: #c9d3e6; }
.chip:disabled { opacity: .45; cursor: default; }
.empty { color: var(--ink-2); padding: 24px 0; }

/* post */
.prose { padding-top: 40px; padding-bottom: 64px; font-size: 18px; }
.prose h2 { margin-top: 40px; font-size: 23px; }
.prose ul, .prose ol { padding-left: 1.3em; }
.prose li { margin-bottom: 6px; }
.prose blockquote { margin: 28px 0; padding: 20px 24px; background: var(--blue-soft); border-left: 5px solid var(--blue); border-radius: 0 12px 12px 0; font-weight: 600; color: var(--navy); }
.prose blockquote p { margin: 0; }
.tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 32px; }
.tags span { font-size: 15px; color: var(--blue); background: var(--blue-soft); padding: 2px 10px; border-radius: 8px; }
.pager { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 40px; }
.pager a { display: block; padding: 16px; border: 1px solid var(--line); border-radius: 12px; text-decoration: none; color: var(--ink); font-weight: 600; font-size: 16px; }
.pager a span { display: block; font-size: 13px; color: var(--ink-2); font-weight: 500; }
.pager .older { text-align: right; }

/* contact */
.contact { display: grid; grid-template-columns: 1fr 320px; gap: 40px; align-items: start; }
.form { display: grid; gap: 18px; }
.field { display: grid; gap: 6px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
label, legend { font-weight: 700; color: var(--navy); }
label em, legend em { font-style: normal; font-size: 13px; color: #c0392b; margin-left: 4px; }
label small { font-weight: 500; color: var(--ink-2); }
input, select, textarea { font: inherit; font-size: 17px; padding: 12px 14px; border: 1px solid #c4ccd9; border-radius: 10px; background: #fff; color: var(--ink); width: 100%; }
textarea { resize: vertical; }
.hp { position: absolute; left: -9999px; }
.consent { border: 1px solid var(--line); border-radius: 12px; padding: 16px 18px; margin: 0; background: var(--bg-alt); }
.consent ul { margin: 6px 0 12px; padding-left: 1.2em; color: var(--ink-2); font-size: 15px; }
.check { display: flex; gap: 10px; align-items: center; font-weight: 700; cursor: pointer; }
.check input { width: 22px; height: 22px; }
.form-status { min-height: 1.5em; font-weight: 600; margin: 0; }
.form-status.ok { color: #1e7d45; } .form-status.err { color: #c0392b; }
.contact-side { background: var(--bg-alt); border-radius: var(--radius); padding: 24px; position: sticky; top: 92px; }
.contact-side h2 { font-size: 19px; }
.contact-side ul { list-style: none; padding: 0; margin: 0 0 16px; display: grid; gap: 12px; }
.contact-side li { display: grid; }
.contact-side strong { font-size: 14px; color: var(--ink-2); }
.contact-side li a { font-size: 19px; font-weight: 700; }
.contact-side p { font-size: 15px; color: var(--ink-2); margin: 0; }

/* footer */
.site-footer { background: var(--navy-deep); color: #c9d3e6; padding: 40px 0; font-size: 15px; }
.footer-inner { display: grid; grid-template-columns: 1.2fr 1fr 1fr; gap: 24px; }
.footer-inner p { margin: 0; }
.footer-name { color: #fff; font-weight: 700; font-size: 17px; }
.site-footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 6px; }
.site-footer a { color: #fff; }
.footer-note { grid-column: 1 / -1; padding-top: 20px; border-top: 1px solid rgba(255,255,255,.12); color: #8f9bb3; font-size: 14px; }

/* responsive */
@media (max-width: 900px) {
  .grid, .pillars { grid-template-columns: 1fr 1fr; }
  .about { grid-template-columns: 240px 1fr; gap: 32px; }
  .contact { grid-template-columns: 1fr; }
  .contact-side { position: static; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 760px) {
  body { font-size: 17px; }
  .menu-btn { display: block; }
  .site-nav { position: absolute; top: 68px; left: 0; right: 0; background: #fff; border-bottom: 1px solid var(--line); box-shadow: 0 12px 24px rgba(27,42,74,.1); display: none; }
  .site-nav.open { display: block; }
  .site-nav ul { flex-direction: column; padding: 12px 16px 20px; gap: 4px; }
  .site-nav a { padding: 14px 12px; font-size: 18px; }
  .hero-inner { grid-template-columns: 1fr; gap: 0; padding-top: 36px; }
  .hero-text { padding-bottom: 28px; }
  .hero-photo { max-width: 260px; }
  .quick .btn { flex: 1 1 100%; }
  .section { padding: 48px 0; }
  .grid, .pillars { grid-template-columns: 1fr; }
  .about { grid-template-columns: 1fr; }
  .about-photo { position: static; max-width: 220px; }
  .facts div { grid-template-columns: 96px 1fr; }
  .field-row { grid-template-columns: 1fr; }
  .news-list a { flex-direction: column; gap: 4px; }
  .pager { grid-template-columns: 1fr; }
  .pager .older { text-align: left; }
  .footer-inner { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; scroll-behavior: auto !important; } }