/* IDEAS Lab — shared stylesheet */
:root {
  --navy: #0f2747;
  --navy-2: #1b3a66;
  --gold: #c9a227;
  --gold-soft: #f4ecd2;
  --ink: #1d2433;
  --muted: #5b6475;
  --line: #e3e7ee;
  --bg: #ffffff;
  --bg-alt: #f6f8fb;
  --radius: 10px;
  --max: 1080px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Inter", "Noto Sans KR", system-ui, -apple-system, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  font-size: 16px;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--navy-2); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 20px; }

/* Header */
header.site {
  position: sticky; top: 0; z-index: 10;
  background: rgba(15, 39, 71, 0.97);
  color: #fff;
  border-bottom: 3px solid var(--gold);
}
header.site .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 64px; flex-wrap: wrap; }
.brand { color: #fff; display: flex; align-items: baseline; gap: 10px; }
.brand:hover { text-decoration: none; }
.brand b { font-family: "Source Serif 4", Georgia, serif; font-size: 1.5rem; letter-spacing: 0.06em; }
.brand span { font-size: 0.82rem; color: #c8d3e6; }
nav.main { display: flex; flex-wrap: wrap; gap: 4px; }
nav.main a { color: #dfe6f2; padding: 6px 12px; border-radius: 6px; font-size: 0.95rem; }
nav.main a:hover { background: rgba(255,255,255,0.1); text-decoration: none; }
nav.main a.active { color: var(--navy); background: var(--gold); font-weight: 600; }

/* Hero */
.hero { background: linear-gradient(135deg, var(--navy) 0%, var(--navy-2) 100%); color: #fff; overflow: hidden; }
.hero .wrap { display: grid; grid-template-columns: 1.2fr 1fr; gap: 32px; align-items: center; padding-top: 64px; padding-bottom: 64px; }
.hero .eyebrow { color: var(--gold); letter-spacing: 0.18em; font-size: 0.8rem; font-weight: 600; text-transform: uppercase; }
.hero h1 { font-family: "Source Serif 4", Georgia, serif; font-size: clamp(2.2rem, 5vw, 3.4rem); line-height: 1.15; margin: 10px 0 14px; }
.hero h1 .acr { color: var(--gold); }
.hero p.lead { color: #d5deec; font-size: 1.08rem; max-width: 36em; }
.hero .cta { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 22px; }
.btn { display: inline-block; padding: 10px 18px; border-radius: 8px; font-weight: 600; font-size: 0.95rem; }
.btn.gold { background: var(--gold); color: var(--navy); }
.btn.ghost { border: 1px solid rgba(255,255,255,0.45); color: #fff; }
.btn:hover { text-decoration: none; filter: brightness(1.06); }
.hero svg { width: 100%; height: auto; }

/* Page title band */
.pagehead { background: var(--navy); color: #fff; padding: 44px 0 36px; border-bottom: 1px solid var(--navy-2); }
.pagehead h1 { font-family: "Source Serif 4", Georgia, serif; margin: 0; font-size: clamp(1.8rem, 4vw, 2.5rem); }
.pagehead p { margin: 6px 0 0; color: #c8d3e6; }

/* Sections */
section { padding: 56px 0; }
section.alt { background: var(--bg-alt); }
h2 { font-family: "Source Serif 4", Georgia, serif; font-size: 1.75rem; margin: 0 0 8px; color: var(--navy); }
h2 + .sub { color: var(--muted); margin: 0 0 28px; }
h3 { margin: 0 0 6px; font-size: 1.12rem; color: var(--navy); }
.kicker { color: var(--gold); font-weight: 700; letter-spacing: 0.14em; font-size: 0.78rem; text-transform: uppercase; }

/* Grids and cards */
.grid { display: grid; gap: 20px; }
.g2 { grid-template-columns: repeat(2, 1fr); }
.g3 { grid-template-columns: repeat(3, 1fr); }
.g4 { grid-template-columns: repeat(4, 1fr); }
.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; }
.card.top { border-top: 4px solid var(--navy-2); }
.card.gold { border-top: 4px solid var(--gold); }
.card p { margin: 6px 0 0; color: var(--muted); font-size: 0.95rem; }
.card .num { font-family: "Source Serif 4", Georgia, serif; font-size: 1.9rem; color: var(--gold); font-weight: 700; line-height: 1; }
ul.tags { list-style: none; padding: 0; margin: 12px 0 0; display: flex; flex-wrap: wrap; gap: 6px; }
ul.tags li { background: var(--gold-soft); color: #6b5410; font-size: 0.78rem; padding: 3px 9px; border-radius: 999px; }

.flow { color: var(--muted); font-style: italic; margin-bottom: 26px; }
.flow b { color: var(--navy); font-style: normal; }

/* Research feature rows */
.feature { display: grid; grid-template-columns: 1fr 1.1fr; gap: 32px; align-items: center; padding: 34px 0; border-bottom: 1px solid var(--line); }
.feature:last-child { border-bottom: 0; }
.feature.rev { grid-template-columns: 1.1fr 1fr; }
.feature.rev .txt { order: 2; }
.feature figure { margin: 0; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 10px; }
.feature figcaption { font-size: 0.8rem; color: var(--muted); margin-top: 8px; }
.feature ul { padding-left: 1.1em; color: var(--muted); }

/* News / lists */
ul.news { list-style: none; margin: 0; padding: 0; }
ul.news li { display: grid; grid-template-columns: 96px 1fr; gap: 16px; padding: 12px 0; border-bottom: 1px dashed var(--line); }
ul.news time { color: var(--gold); font-weight: 700; font-variant-numeric: tabular-nums; }

/* Projects table */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 0.93rem; }
th, td { text-align: left; padding: 11px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { background: var(--navy); color: #fff; font-weight: 600; }
td .ko { display: block; color: var(--muted); font-size: 0.84rem; }
.badge { display: inline-block; font-size: 0.75rem; font-weight: 700; padding: 2px 8px; border-radius: 4px; background: var(--navy-2); color: #fff; white-space: nowrap; }
.badge.g { background: var(--gold); color: var(--navy); }

/* Publications */
.pubyear { font-family: "Source Serif 4", Georgia, serif; color: var(--navy); font-size: 1.3rem; margin: 30px 0 6px; border-bottom: 2px solid var(--gold); display: inline-block; padding-right: 12px; }
ol.pubs { margin: 0; padding-left: 1.4em; }
ol.pubs li { margin: 10px 0; }
ol.pubs .t { font-weight: 600; color: var(--ink); }
ol.pubs .v { color: var(--muted); font-size: 0.92rem; }
ol.pubs .me { text-decoration: underline; text-decoration-color: var(--gold); text-underline-offset: 3px; font-weight: 600; }
.filter { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 10px; }
.filter button { font: inherit; font-size: 0.88rem; border: 1px solid var(--line); background: #fff; border-radius: 999px; padding: 5px 14px; cursor: pointer; color: var(--ink); }
.filter button.on { background: var(--navy); color: #fff; border-color: var(--navy); }

/* People */
.pi { display: grid; grid-template-columns: 220px 1fr; gap: 32px; align-items: start; }
.avatar { width: 220px; height: 260px; border-radius: var(--radius); background: linear-gradient(160deg, var(--navy-2), var(--navy)); color: var(--gold); display: flex; align-items: center; justify-content: center; font-family: "Source Serif 4", Georgia, serif; font-size: 3.4rem; font-weight: 700; }
.timeline { list-style: none; margin: 0; padding: 0; border-left: 2px solid var(--line); }
.timeline li { position: relative; padding: 0 0 14px 20px; }
.timeline li::before { content: ""; position: absolute; left: -7px; top: 7px; width: 12px; height: 12px; border-radius: 50%; background: #fff; border: 3px solid var(--navy-2); }
.timeline li.gold::before { border-color: var(--gold); }
.timeline .when { font-size: 0.85rem; color: var(--muted); }

/* Footer */
footer.site { background: var(--navy); color: #c8d3e6; padding: 36px 0; font-size: 0.9rem; }
footer.site .wrap { display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
footer.site b { color: #fff; }
footer.site a { color: var(--gold); }

@media (max-width: 860px) {
  .hero .wrap, .feature, .feature.rev, .pi { grid-template-columns: 1fr; }
  .feature.rev .txt { order: 0; }
  .g3, .g4 { grid-template-columns: repeat(2, 1fr); }
  .avatar { width: 160px; height: 190px; font-size: 2.6rem; }
}
@media (max-width: 560px) {
  .g2, .g3, .g4 { grid-template-columns: 1fr; }
  ul.news li { grid-template-columns: 1fr; gap: 2px; }
  header.site .wrap { padding-top: 8px; padding-bottom: 8px; }
  nav.main a { padding: 4px 8px; font-size: 0.88rem; }
}

/* Logo */
.brand img { height: 30px; width: auto; display: block; }
.brand { align-items: center; }
footer.site .flogo { width: 300px; max-width: 100%; height: auto; margin-bottom: 10px; }
@media (max-width: 560px) { .brand img { height: 24px; } .brand span { display: none; } }

/* Photos & members */
img.avatar.photo { object-fit: cover; object-position: top; background: none; }
h3.role { font-size: 0.8rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--gold); margin: 26px 0 14px; }
.member { display: grid; grid-template-columns: 150px 1fr; gap: 24px; align-items: start; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; }
.member > img { width: 150px; height: 190px; object-fit: cover; object-position: top; border-radius: 8px; }
.member .pos { margin: 2px 0 0; color: var(--muted); font-size: 0.95rem; }
@media (max-width: 560px) { .member { grid-template-columns: 1fr; } .member > img { width: 130px; height: 165px; } }

/* Recruiting banner */
.recruit { background: var(--gold); color: var(--navy); padding: 52px 0; }
.recruit .wrap { display: grid; grid-template-columns: 1.15fr 1fr; gap: 36px; align-items: center; }
.recruit .kicker { color: var(--navy); opacity: 0.8; }
.recruit h2 { color: var(--navy); font-size: clamp(1.7rem, 3.6vw, 2.4rem); line-height: 1.2; margin: 6px 0 12px; }
.recruit p { margin: 8px 0; color: #2a2206; }
.recruit p.ko { font-weight: 600; font-size: 1.08rem; color: var(--navy); }
.recruit .cta { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 18px; }
.btn.navy { background: var(--navy); color: #fff; }
.btn.outline { border: 1.5px solid var(--navy); color: var(--navy); }
.recruit-list { list-style: none; margin: 0; padding: 0; background: rgba(255,255,255,0.55); border-radius: var(--radius); }
.recruit-list li { padding: 14px 20px; border-bottom: 1px solid rgba(15,39,71,0.12); display: flex; flex-direction: column; }
.recruit-list li:last-child { border-bottom: 0; }
.recruit-list b { color: var(--navy); }
.recruit-list li > span { color: #3d3312; font-size: 0.93rem; }
.recruit-list a { color: var(--navy); font-weight: 600; }
@media (max-width: 860px) { .recruit .wrap { grid-template-columns: 1fr; } }

/* Video */
.feature figure video { width: 100%; height: auto; display: block; border-radius: 6px; background: #0f2747; }

/* Smaller research videos */
.feature figure video { max-height: 240px; width: auto; max-width: 100%; margin: 0 auto; }

/* Course */
.course { display: grid; grid-template-columns: 1.5fr 1fr; gap: 32px; align-items: start; margin-top: 10px; }
.course p { color: var(--ink); }
ol.weeks { list-style: none; padding: 0; margin: 10px 0 0; columns: 2; column-gap: 28px; }
ol.weeks li { break-inside: avoid; padding: 7px 0; border-bottom: 1px dashed var(--line); font-size: 0.94rem; display: flex; gap: 10px; }
ol.weeks .wk { color: var(--gold); font-weight: 700; min-width: 34px; font-variant-numeric: tabular-nums; }
dl.facts { margin: 0; display: grid; grid-template-columns: 96px 1fr; gap: 10px 12px; font-size: 0.93rem; }
dl.facts dt { color: var(--muted); font-weight: 600; }
dl.facts dd { margin: 0; }
@media (max-width: 860px) { .course { grid-template-columns: 1fr; } ol.weeks { columns: 1; } }

/* Courses table */
table.courses td { font-size: 0.92rem; }
table.courses .nowrap { white-space: nowrap; }
table.courses .c { text-align: center; }
table.courses .en { display: block; color: var(--navy-2); font-weight: 600; }
table.courses .ko { display: block; color: var(--muted); font-size: 0.84rem; margin-top: 3px; }
table.courses th:nth-child(2) { min-width: 220px; }
table.courses th:nth-child(6) { min-width: 240px; }

/* Korean line breaking: keep words together */
.recruit p.ko { text-wrap: balance; }

/* Course cards */
.courses { display: grid; gap: 20px; }
.course-card { background: #fff; border: 1px solid var(--line); border-top: 4px solid var(--gold); border-radius: var(--radius); padding: 26px 28px; }
.course-card .ctitle { font-size: 1.45rem; margin: 6px 0 2px; }
.course-card .ctitle span { display: block; font-size: 1.05rem; color: var(--navy-2); font-weight: 600; margin-top: 2px; }
.course-card .csub { color: var(--muted); margin: 4px 0 16px; }
.course-card .cbook { color: var(--muted); font-size: 0.9rem; margin: 6px 0 0; }
ul.cmeta { list-style: none; padding: 0; margin: 0 0 14px; display: flex; flex-wrap: wrap; gap: 8px; }
ul.cmeta li { background: var(--bg-alt); border: 1px solid var(--line); border-radius: 6px; padding: 5px 11px; font-size: 0.88rem; }
ul.cmeta b { color: var(--muted); font-weight: 600; margin-right: 6px; }

/* ---- Text alignment, set per area ----
   Default: left-aligned, no automatic hyphenation, no breaking inside words.
   Only long English body paragraphs (.body-text) are justified; justify.js
   switches any of them back to left alignment when word gaps would get too wide. */
body { word-break: keep-all; overflow-wrap: normal; -webkit-hyphens: manual; hyphens: manual; }
p, li, dd, td, th, figcaption, ul.news span, .recruit-list span { text-align: left; }
.body-text { text-align: justify; text-align-last: left; text-justify: inter-word; }
.ragged { text-align: left !important; }

/* Hero title: fixed line breaks, common left edge */
.hero .eyebrow, .hero h1.hero-title { text-align: left; margin-left: 0; padding-left: 0; }
.hero h1.hero-title { white-space: nowrap; }
@media (max-width: 380px) { .hero h1.hero-title { white-space: normal; } }
.hero .eyebrow { white-space: nowrap; }
@media (max-width: 480px) { .hero .eyebrow { letter-spacing: 0.08em; font-size: 0.7rem; } }
.nw { white-space: nowrap; }

/* Home · Selected work: equal image boxes, aligned titles and descriptions */
.works { align-items: stretch; }
.works > .card { display: grid; grid-template-rows: 190px auto 1fr; row-gap: 0; }
.works .work-img { height: 190px; display: flex; align-items: center; justify-content: center; background: #fff; }
.works .work-img img { max-width: 100%; max-height: 100%; width: auto; height: auto; object-fit: contain; }
.works > .card h3 { margin: 14px 0 0; min-height: calc(2 * 1.65em); }
.works > .card p { margin-top: 6px; }
@supports (grid-template-rows: subgrid) {
  .works { grid-template-rows: auto auto auto; }
  .works > .card { grid-row: span 3; grid-template-rows: subgrid; }
  .works > .card h3 { min-height: 0; }
}
@media (max-width: 560px) {
  .works > .card { grid-row: auto; grid-template-rows: 190px auto auto; }
  .works > .card h3 { min-height: 0; }
}

/* Header: IDEAS Lab wordmark | SEOUL NATIONAL UNIVERSITY */
.brand { gap: 14px; }
.brand .brand-sep { width: 1px; height: 26px; background: rgba(255,255,255,0.35); display: block; }
.brand .brand-univ { font-family: "Inter", "Noto Sans KR", system-ui, sans-serif; font-size: 0.72rem; font-weight: 600;
  letter-spacing: 0.16em; text-transform: uppercase; color: var(--gold); line-height: 1; white-space: nowrap; }
@media (max-width: 560px) {
  .brand { gap: 10px; }
  .brand .brand-sep { height: 20px; }
  .brand .brand-univ { display: inline; font-size: 0.6rem; letter-spacing: 0.1em; }
}