/* First Brick Foundation — design tokens
   paper(분필 흰색) · ink(칠판 녹흑) · blue(교복 파랑) · marigold(첫 벽돌) · brick(벽돌 3톤) */
:root {
  --paper: #F4F5F0;
  --paper-2: #E8ECE3;
  --ink: #16231E;
  --muted: #4E5C55;
  --rule: #CDD5C9;
  --blue: #22408C;
  --blue-deep: #182F69;
  --marigold: #EFA52F;
  --b1: #A9482E;
  --b2: #BA5B3B;
  --b3: #8F3D27;
  --f-head: "Bricolage Grotesque", "Noto Sans KR", system-ui, sans-serif;
  --f-read: "Literata", "Gowun Batang", Georgia, serif;
  --wrap: 1180px;
  --gut: clamp(16px, 4vw, 40px);
  --s-1: 13px; --s0: 16px; --s1: 19px; --s2: 23px; --s3: 30px; --s4: clamp(34px, 4.6vw, 52px); --s5: clamp(42px, 7vw, 92px);
}
.lang-ko { --f-head: "Noto Sans KR", "Bricolage Grotesque", system-ui, sans-serif; --f-read: "Gowun Batang", "Literata", serif; }

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body { margin: 0; background: var(--paper); color: var(--ink); font: 400 var(--s0)/1.55 var(--f-head); -webkit-font-smoothing: antialiased; }
.lang-ko { word-break: keep-all; overflow-wrap: anywhere; }
img { max-width: 100%; display: block; }
a { color: inherit; }
:focus-visible { outline: 3px solid var(--marigold); outline-offset: 3px; border-radius: 2px; }
.wrap { max-width: var(--wrap); margin-inline: auto; padding-inline: var(--gut); }
.skip { position: absolute; left: -9999px; top: 8px; background: var(--ink); color: var(--paper); padding: 8px 14px; z-index: 50; }
.skip:focus { left: 8px; }
.small { font-size: var(--s-1); color: var(--muted); line-height: 1.5; }
.small a { color: var(--ink); }

/* header */
.site-head { position: sticky; top: 0; z-index: 20; background: color-mix(in srgb, var(--paper) 92%, transparent); backdrop-filter: blur(8px); border-bottom: 1px solid var(--rule); }
.head-row { display: flex; align-items: center; gap: 28px; height: 68px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; }
.brand-name { font: 700 20px/1 "Bricolage Grotesque", sans-serif; letter-spacing: -0.01em; font-variation-settings: "opsz" 48; }
.logo-mark { width: 30px; height: 22px; fill: var(--b1); flex: none; }
.logo-mark .lm-first { fill: var(--marigold); }
.logo-mark.lg { width: 44px; height: 32px; }
.logo-mark.xl { width: 88px; height: 64px; }
.nav { display: flex; gap: 24px; margin-left: 8px; }
.nav a { text-decoration: none; font-size: 15px; font-weight: 500; color: var(--muted); padding: 6px 0; border-bottom: 2px solid transparent; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--ink); border-bottom-color: var(--marigold); }
.head-end { margin-left: auto; display: flex; align-items: center; gap: 18px; }
.lang { font-size: 14px; color: var(--muted); text-decoration: none; }
.lang:hover { color: var(--ink); text-decoration: underline; }

/* buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 0 22px; background: var(--blue); color: #fff; font: 600 16px/1 var(--f-head); text-decoration: none; border: 0; border-radius: 3px; cursor: pointer; box-shadow: inset 0 -3px 0 var(--blue-deep); transition: background .15s; }
.btn:hover { background: var(--blue-deep); }
.btn-sm { min-height: 38px; padding: 0 14px; font-size: 14px; }
.btn-quiet { background: transparent; color: var(--ink); box-shadow: inset 0 0 0 1.5px var(--ink); }
.btn-quiet:hover { background: var(--ink); color: var(--paper); }
.btn-light { background: var(--paper); color: var(--ink); box-shadow: inset 0 -3px 0 var(--marigold); }
.btn-light:hover { background: #fff; }
.text-link { font-weight: 600; color: var(--blue); text-decoration-thickness: 1.5px; text-underline-offset: 4px; }

/* hero */
.hero { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: clamp(24px, 4vw, 56px); align-items: end; padding-top: clamp(48px, 8vw, 104px); padding-bottom: 28px; }
.display { font: 800 var(--s5)/0.96 var(--f-head); letter-spacing: -0.035em; margin: 0 0 28px; font-variation-settings: "opsz" 96; max-width: 11ch; text-wrap: balance; }
.lang-ko .display { letter-spacing: -0.04em; line-height: 1.12; max-width: 12em; font-size: clamp(36px, 5.6vw, 72px); }
.lede { font: 400 var(--s1)/1.6 var(--f-read); max-width: 34em; margin: 0 0 14px; color: var(--ink); }
.hero-note { font: italic 400 var(--s0)/1.5 var(--f-read); color: var(--muted); margin: 0 0 30px; }
.lang-ko .hero-note { font-style: normal; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; }
.house { margin: 0; }
.house svg { width: 100%; height: auto; overflow: visible; }
.house .ground { stroke: var(--ink); stroke-width: 1.5; }
.brick { fill: var(--b1); }
.brick.b2 { fill: var(--b2); }
.brick.b3 { fill: var(--b3); }
.brick.first { fill: var(--marigold); }
.brick.roof { fill: #2B3A34; }
.brick.roof.roof2 { fill: #34463F; }
.house .pane { fill: #C9D6EE; }
.house .mullion { stroke: var(--paper); stroke-width: 3; }
.house .door { fill: var(--blue); }
.house .knob { fill: var(--marigold); }
.js .house:not(.laid) .fill { opacity: 0; }
.house .fill { transition: opacity .5s; transition-delay: calc(var(--i) * 11ms + 520ms); }
.callout line { stroke: var(--ink); stroke-width: 1; }
.callout text { font: italic 400 17px var(--f-read); fill: var(--ink); }
.js .house:not(.laid) .brick { opacity: 0; transform: translateY(-14px); }
.js .house:not(.laid) .callout { opacity: 0; }
.house .brick { transition: opacity .28s ease-out, transform .32s cubic-bezier(.2,.8,.3,1); transition-delay: calc(var(--i) * 11ms + 520ms); }
.house .brick.first { transition-delay: 0ms; transition-duration: .5s; }
.house .callout { transition: opacity .6s 300ms; }
@media (prefers-reduced-motion: reduce) { .house .brick, .house .callout, .house .fill { transition: none; } }

.status { display: flex; gap: 12px; align-items: flex-start; margin: 22px 0 0; padding: 14px 0 0; border-top: 1px solid var(--rule); font-size: 15px; color: var(--muted); max-width: 62em; }
.status .dot { width: 10px; height: 10px; border-radius: 50%; background: var(--marigold); margin-top: 6px; flex: none; box-shadow: 0 0 0 4px color-mix(in srgb, var(--marigold) 25%, transparent); }

/* sections */
section { padding-block: clamp(56px, 8vw, 104px) 0; }
.band { padding-block: clamp(56px, 8vw, 104px); margin-top: clamp(56px, 8vw, 104px); }
.band + section, .band + .band { margin-top: 0; }
.path-band { background: var(--paper-2); }
.ink-band { background: var(--ink); color: var(--paper); }
.ink-band .small, .ink-band .small a { color: #C7D0C9; }
.cta-band { background: var(--blue); color: #fff; }
.sec-head { margin-bottom: 36px; max-width: 42em; }
.sec-head h2 { font: 750 var(--s4)/1.04 var(--f-head); letter-spacing: -0.025em; margin: 0 0 14px; font-variation-settings: "opsz" 72; }
.lang-ko .sec-head h2 { letter-spacing: -0.03em; line-height: 1.2; font-weight: 800; }
.sec-head p { font: 400 var(--s1)/1.6 var(--f-read); margin: 0; color: var(--muted); }
.ink-band .sec-head p { color: #C7D0C9; }
.sec-head.row { display: flex; justify-content: space-between; align-items: flex-end; gap: 24px; max-width: none; }
.split { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(24px, 5vw, 72px); }
.split > .sec-head { margin: 0; }

/* path: learn / live / build — 층이 하나씩 높아진다 */
.path { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(20px, 3vw, 40px); align-items: end; }
.path li { border-top: 2px solid var(--ink); padding-top: 18px; }
.course { display: flex; flex-direction: column-reverse; gap: 4px; margin-bottom: 20px; min-height: 52px; justify-content: flex-start; }
.course i { display: block; height: 12px; width: 100%; background: repeating-linear-gradient(90deg, var(--b1) 0 calc(25% - 4px), transparent calc(25% - 4px) 25%); }
.course i:nth-child(2) { background-position: 12.5% 0; background-image: repeating-linear-gradient(90deg, var(--b2) 0 calc(25% - 4px), transparent calc(25% - 4px) 25%); }
.course i:nth-child(3) { background-image: repeating-linear-gradient(90deg, var(--b3) 0 calc(25% - 4px), transparent calc(25% - 4px) 25%); }
.path li:first-child .course i:first-child { background-image: linear-gradient(90deg, var(--marigold) 0 calc(25% - 4px), transparent 0), repeating-linear-gradient(90deg, var(--b1) 0 calc(25% - 4px), transparent calc(25% - 4px) 25%); }
.path h3 { font: 750 var(--s3)/1.1 var(--f-head); margin: 0 0 10px; letter-spacing: -0.02em; }
.path p { font: 400 17px/1.6 var(--f-read); margin: 0; color: var(--muted); max-width: 26em; }

/* definitions */
.defs { margin: 0 0 18px; }
.defs div { padding: 20px 0; border-top: 1px solid var(--rule); display: grid; grid-template-columns: minmax(0, 12em) minmax(0, 1fr); gap: 20px; }
.defs div:last-child { border-bottom: 1px solid var(--rule); }
.defs dt { font-weight: 700; font-size: 18px; }
.defs dd { margin: 0; font: 400 17px/1.6 var(--f-read); }

/* principles */
.principles { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 36px clamp(24px, 5vw, 72px); margin-bottom: 32px; }
.principles h3 { font: 700 var(--s2)/1.2 var(--f-head); margin: 0 0 8px; letter-spacing: -0.01em; }
.principles p { font: 400 17px/1.65 var(--f-read); margin: 0; color: #D6DDD7; max-width: 32em; }

/* roadmap — 실제 순서라 번호 대신 시점으로 */
.road { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 2px solid var(--ink); }
.road li { padding: 20px 20px 0 0; position: relative; }
.road li::before { content: ""; position: absolute; top: -8px; left: 0; width: 22px; height: 12px; background: var(--rule); border-radius: 1px; }
.road li.done::before { background: var(--b1); }
.road li.now::before { background: var(--marigold); }
.road-when { display: block; font-size: 14px; color: var(--muted); margin-bottom: 8px; }
.road-now { font-style: normal; font-weight: 700; color: var(--ink); background: var(--marigold); padding: 1px 7px; border-radius: 2px; margin-left: 6px; font-size: 13px; }
.road h3 { font: 700 var(--s2)/1.2 var(--f-head); margin: 0 0 8px; }
.road p { font: 400 16px/1.6 var(--f-read); color: var(--muted); margin: 0; }

/* journal */
.posts { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(20px, 3vw, 36px); }
.post-card a { text-decoration: none; display: block; }
.post-card img, .post-ph { aspect-ratio: 4/3; object-fit: cover; width: 100%; background: var(--paper-2); margin-bottom: 14px; border-radius: 2px; }
.post-ph { display: grid; place-items: center; }
.post-meta { font-size: 14px; color: var(--muted); margin: 0 0 8px; display: flex; gap: 14px; flex-wrap: wrap; }
.post-card h3 { font: 700 var(--s2)/1.22 var(--f-head); margin: 0 0 8px; letter-spacing: -0.01em; }
.post-card a:hover h3 { text-decoration: underline; text-decoration-color: var(--marigold); text-decoration-thickness: 2px; text-underline-offset: 4px; }
.post-card p:not(.post-meta) { font: 400 16px/1.6 var(--f-read); color: var(--muted); margin: 0; }
.empty { font: italic 400 var(--s1)/1.6 var(--f-read); color: var(--muted); padding: 32px 0; border-top: 1px solid var(--rule); }
.post { max-width: 820px; padding-top: clamp(40px, 6vw, 80px); }
.post-head h1 { font: 800 var(--s4)/1.06 var(--f-head); letter-spacing: -0.03em; margin: 0 0 28px; }
.post-cover { width: 100%; border-radius: 2px; margin-bottom: 32px; }
.gallery { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin: 32px 0 12px; }
.gallery img { aspect-ratio: 4/3; object-fit: cover; width: 100%; border-radius: 2px; }

/* prose */
.prose { font: 400 var(--s1)/1.7 var(--f-read); max-width: 38em; }
.prose h2 { font: 750 var(--s3)/1.15 var(--f-head); letter-spacing: -0.02em; margin: 1.6em 0 .5em; }
.prose p, .prose ul { margin: 0 0 1em; }
.prose li { margin-bottom: .5em; }
.prose a { color: var(--blue); }
.person { font-family: var(--f-head); font-size: var(--s2); margin-bottom: .4em !important; }
.page-head { padding-top: clamp(48px, 7vw, 96px); }
.page-head h1 { font: 800 var(--s5)/0.98 var(--f-head); letter-spacing: -0.035em; margin: 0 0 22px; font-variation-settings: "opsz" 96; }
.lang-ko .page-head h1 { line-height: 1.15; letter-spacing: -0.04em; font-size: clamp(38px, 6vw, 72px); }
.page-head + .wrap .status { margin-top: 28px; }
.page-head + section { padding-top: clamp(36px, 5vw, 64px); }
.prose-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 48px clamp(24px, 5vw, 72px); }
.prose-block h2 { font: 750 var(--s2)/1.2 var(--f-head); margin: 0 0 12px; letter-spacing: -0.01em; padding-top: 16px; border-top: 2px solid var(--ink); }
.prose-block p { font: 400 17px/1.7 var(--f-read); margin: 0; color: var(--ink); }
.policy h2:first-child { margin-top: 0; }

/* partners */
.partner-line { display: flex; gap: 18px; align-items: baseline; flex-wrap: wrap; font: 400 var(--s1)/1.6 var(--f-read); margin: 0 0 18px; }
.partner-line span { flex: 1 1 20em; }
.partners p { font: 400 17px/1.65 var(--f-read); }
.cb { font: 500 15px/1 "Bodoni Moda", Didot, "Times New Roman", serif; letter-spacing: .32em; text-decoration: none; border-bottom: 1px solid currentColor; padding-bottom: 3px; white-space: nowrap; }

/* cta */
.cta > * { max-width: 38rem; }
.cta h2 { font: 800 var(--s4)/1.05 var(--f-head); letter-spacing: -0.03em; margin: 0 0 16px; }
.lang-ko .cta h2 { line-height: 1.2; }
.cta p { font: 400 var(--s1)/1.6 var(--f-read); margin: 0 0 28px; color: #DCE3F5; }

/* get involved */
.ways { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(20px, 3vw, 40px); }
.way { border-top: 2px solid var(--ink); padding-top: 16px; scroll-margin-top: 90px; }
.way h2 { font: 750 var(--s2)/1.2 var(--f-head); margin: 0 0 10px; }
.way p { font: 400 17px/1.65 var(--f-read); margin: 0; color: var(--muted); }
.way:target { border-top-color: var(--marigold); }
.form-wrap h2 { font: 800 var(--s3)/1.1 var(--f-head); margin: 0 0 22px; letter-spacing: -0.02em; }
.form { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px 24px; max-width: 860px; margin-bottom: 22px; }
.form label { display: grid; gap: 6px; font-size: 15px; font-weight: 600; }
.form .wide { grid-column: 1 / -1; }
.form input, .form select, .form textarea { font: 400 17px/1.4 var(--f-head); padding: 12px 14px; border: 1.5px solid var(--ink); border-radius: 3px; background: #fff; color: var(--ink); width: 100%; }
.form textarea { resize: vertical; }
.form-end { display: flex; gap: 20px; align-items: center; flex-wrap: wrap; }
.form-end .small { flex: 1 1 18em; margin: 0; }
.hp { position: absolute; left: -9999px; }

/* footer */
.site-foot { margin-top: clamp(64px, 9vw, 120px); border-top: 1px solid var(--rule); padding-top: 48px; }
.cta-band + .site-foot, main:has(> .cta-band:last-child) + .site-foot { margin-top: 0; }
.foot-grid { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr) minmax(0, 0.8fr); gap: 32px; }
.foot-name { font: 700 var(--s2)/1.2 var(--f-head); margin: 14px 0 6px; }
.foot-tag { font: italic 400 16px/1.5 var(--f-read); color: var(--muted); margin: 0; }
.lang-ko .foot-tag { font-style: normal; }
.foot-links { display: grid; gap: 10px; align-content: start; }
.foot-links a { text-decoration: none; font-size: 15px; }
.foot-links a:hover { text-decoration: underline; }
.foot-partner .small { margin: 0 0 12px; }
.foot-base { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; padding-top: 32px; padding-bottom: 36px; margin-top: 40px; border-top: 1px solid var(--rule); font-size: 13px; color: var(--muted); }
.foot-base p { margin: 0; }

/* responsive */
@media (max-width: 980px) {
  .nav { display: none; }
  .hero { grid-template-columns: 1fr; align-items: start; }
  .house { max-width: 520px; }
  .road { grid-template-columns: repeat(2, minmax(0, 1fr)); row-gap: 28px; border-top: 0; }
  .road li { border-top: 2px solid var(--ink); }
  .posts, .ways { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 720px) {
  .head-row { gap: 12px; height: 60px; }
  .head-end .btn-sm { display: none; }
  .split, .principles, .prose-grid, .path, .posts, .ways, .form, .foot-grid { grid-template-columns: 1fr; }
  .path { gap: 32px; }
  .course { min-height: 0; }
  .defs div { grid-template-columns: 1fr; gap: 6px; }
  .road { grid-template-columns: 1fr; }
  .sec-head.row { flex-direction: column; align-items: flex-start; }
  .gallery { grid-template-columns: 1fr; }
}
.mobile-nav { display: none; gap: 18px; overflow-x: auto; padding: 10px var(--gut); border-top: 1px solid var(--rule); scrollbar-width: none; }
.mobile-nav a { text-decoration: none; font-size: 15px; font-weight: 500; white-space: nowrap; color: var(--muted); }
.mobile-nav a[aria-current="page"] { color: var(--ink); }
@media (max-width: 980px) { .mobile-nav { display: flex; } }