[hidden] { display: none !important; }
:root {
  --blue: #0969da;
  --blue-dark: #0550ae;
  --blue-soft: #ddf4ff;
  --blue-pale: #f3f8ff;
  --ink: #172033;
  --muted: #667085;
  --line: #d8dee8;
  --line-strong: #bdc7d6;
  --paper: #ffffff;
  --wash: #f7f9fc;
  --green: #1a7f37;
  --radius: 14px;
  --shadow: 0 8px 28px rgba(31, 45, 61, 0.07);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
}
a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }
code {
  padding: .12rem .35rem;
  border: 1px solid #e7ebf0;
  border-radius: 5px;
  background: #f6f8fa;
  color: #334155;
  font: .88em ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
button { font: inherit; }
.container { width: min(1160px, calc(100% - 40px)); margin: 0 auto; }
.skip-link { position: absolute; left: -999px; top: 0; padding: 8px 12px; background: var(--ink); color: white; z-index: 100; }
.skip-link:focus { left: 10px; top: 10px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(216, 222, 232, .88);
  background: rgba(255, 255, 255, .94);
  backdrop-filter: blur(10px);
}
.nav-wrap { min-height: 70px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 12px; color: var(--ink); text-decoration: none; min-width: 250px; }
.brand:hover { text-decoration: none; }
.brand-mark { display: inline-flex; align-items: center; gap: 4px; font-weight: 800; }
.brand-mark span { display: grid; place-items: center; min-width: 28px; height: 28px; border-radius: 8px; background: var(--blue-soft); color: var(--blue); font-size: 12px; }
.brand-mark span:first-child { background: #eef1f5; color: #344054; font-size: 18px; }
.brand-mark b { color: #98a2b3; }
.brand-copy { display: flex; flex-direction: column; line-height: 1.2; }
.brand-copy strong { font-size: 15px; }
.brand-copy small { margin-top: 2px; color: var(--muted); font-size: 11px; }
.nav { display: flex; align-items: center; gap: 22px; font-size: 14px; font-weight: 600; }
.nav a { color: #475467; }
.nav a:hover { color: var(--blue); text-decoration: none; }
.nav-github { padding: 8px 12px; border: 1px solid var(--line); border-radius: 8px; background: white; }

.hero {
  overflow: hidden;
  border-bottom: 1px solid #e8edf4;
  background:
    radial-gradient(circle at 82% 28%, rgba(9, 105, 218, .09), transparent 27%),
    linear-gradient(180deg, #fff 0%, #f9fbff 100%);
}
.hero-grid { min-height: 520px; padding: 76px 0 66px; display: grid; grid-template-columns: 1.2fr .8fr; align-items: center; gap: 72px; }
.eyebrow { margin-bottom: 10px; color: var(--blue); font-size: 12px; line-height: 1.3; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
h1, h2, h3 { line-height: 1.15; }
h1 { max-width: 760px; margin: 0; font-size: clamp(42px, 5.4vw, 68px); letter-spacing: -.045em; }
h1 span { color: var(--blue); }
h2 { margin: 0 0 14px; font-size: clamp(31px, 4vw, 44px); letter-spacing: -.03em; }
h3 { margin: 0 0 9px; font-size: 18px; letter-spacing: -.01em; }
.hero-summary { max-width: 760px; margin: 24px 0 0; color: #475467; font-size: 19px; }
.hero-actions { margin-top: 30px; display: flex; gap: 12px; flex-wrap: wrap; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 0 17px; border-radius: 8px; font-weight: 700; font-size: 14px; text-decoration: none; }
.button:hover { text-decoration: none; transform: translateY(-1px); }
.button-primary { background: var(--blue); color: white; border: 1px solid var(--blue); box-shadow: 0 2px 5px rgba(9,105,218,.17); }
.button-primary:hover { background: var(--blue-dark); }
.button-secondary { background: white; color: #344054; border: 1px solid var(--line-strong); }
.hero-visual { position: relative; height: 280px; display: flex; align-items: center; justify-content: center; gap: 20px; }
.bubble { position: relative; width: 135px; height: 126px; border-radius: 28px; display: grid; place-items: center; box-shadow: var(--shadow); }
.bubble i { position: absolute; bottom: -20px; left: 24px; width: 0; height: 0; border: 20px solid transparent; border-top-color: inherit; transform: rotate(12deg); }
.bubble span { font-weight: 850; letter-spacing: -.05em; }
.bubble-question { border-color: #edf0f4; background: #edf0f4; color: #344054; }
.bubble-question span { font-size: 58px; }
.bubble-code { border-color: #dce9ff; background: #dce9ff; color: var(--blue); transform: translateY(-8px); }
.bubble-code span { font-size: 31px; }
.arrow { color: #98a2b3; font-size: 44px; font-weight: 300; }
.visual-label { position: absolute; bottom: 0; color: #667085; text-align: center; font-size: 13px; letter-spacing: .03em; text-transform: uppercase; }
.visual-label b { color: var(--blue); }

.section { padding: 82px 0; }
.section:nth-of-type(even) { background: var(--wash); }
.section-heading { max-width: 760px; margin-bottom: 34px; }
.section-heading p { margin: 0; color: var(--muted); font-size: 17px; }
.split-heading { max-width: none; display: flex; align-items: flex-end; justify-content: space-between; gap: 28px; }
.split-heading > div { max-width: 760px; }
.status-pill { display: inline-flex; align-items: center; gap: 7px; flex: 0 0 auto; padding: 7px 11px; border: 1px solid #b7dfc2; border-radius: 999px; background: #f2fbf4; color: var(--green); font-size: 12px; font-weight: 750; white-space: nowrap; }
.status-pill .status-dot { width: 7px; height: 7px; flex: 0 0 7px; border-radius: 50%; background: var(--green); }

.leaderboard-section { background: white !important; }
.leaderboard-shell { overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: white; box-shadow: var(--shadow); }
.leaderboard-controls { padding: 18px; border-bottom: 1px solid var(--line); display: flex; align-items: flex-end; justify-content: space-between; gap: 22px; background: #fbfcfe; }
.control-group { display: flex; flex-direction: column; gap: 7px; }
.control-label { color: var(--muted); font-size: 11px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.segmented { display: inline-flex; padding: 3px; border: 1px solid var(--line); border-radius: 9px; background: #f1f4f8; }
.segment { padding: 7px 12px; border: 0; border-radius: 6px; background: transparent; color: #667085; cursor: pointer; font-size: 13px; font-weight: 700; }
.segment:hover { color: var(--ink); }
.segment.is-active { background: white; color: var(--blue); box-shadow: 0 1px 3px rgba(16,24,40,.12); }
.lock { margin-left: 3px; font-size: 10px; filter: grayscale(1); opacity: .8; }
.table-note { min-height: 45px; padding: 11px 18px; display: flex; align-items: center; justify-content: space-between; gap: 20px; border-bottom: 1px solid #edf0f4; color: var(--muted); font-size: 12px; }
.table-scroll { overflow-x: auto; overscroll-behavior-x: contain; -webkit-overflow-scrolling: touch; }
.leaderboard-table { width: 100%; min-width: 1020px; border-collapse: separate; border-spacing: 0; font-size: 13px; }
.leaderboard-table th { padding: 12px 13px; border-bottom: 1px solid var(--line); background: #f8fafc; color: #667085; text-align: left; font-size: 11px; font-weight: 800; letter-spacing: .025em; white-space: nowrap; }
.leaderboard-table td { padding: 15px 13px; border-bottom: 1px solid #edf0f4; vertical-align: middle; }
.leaderboard-table tbody tr:last-child td { border-bottom: 0; }
.leaderboard-table tbody tr:hover { background: #fbfdff; }
.leaderboard-table .rank-col { width: 48px; text-align: center; }
.leaderboard-table th:nth-child(1), .leaderboard-table td:nth-child(1) { position: sticky; left: 0; z-index: 2; width: 48px; min-width: 48px; background: white; }
.leaderboard-table th:nth-child(2), .leaderboard-table td:nth-child(2) { position: sticky; left: 48px; z-index: 2; min-width: 190px; background: white; box-shadow: 8px 0 10px -12px rgba(16,24,40,.45); }
.leaderboard-table thead th:nth-child(1), .leaderboard-table thead th:nth-child(2) { z-index: 4; background: #f8fafc; }
.leaderboard-table tbody tr:hover td:nth-child(1), .leaderboard-table tbody tr:hover td:nth-child(2) { background: #fbfdff; }
.leaderboard-table abbr { text-decoration: underline dotted; text-underline-offset: 3px; cursor: help; }
.rank { text-align: center; color: #475467; font-weight: 800; }
.rank.top { color: var(--blue); }
.algorithm-cell strong { display: block; color: var(--ink); font-size: 14px; }
.algorithm-cell small { color: var(--muted); }
.metric-value { font-variant-numeric: tabular-nums; font-weight: 700; white-space: nowrap; }
.primary-value { color: var(--blue-dark); }
.tie-break-value { color: #344054; }
.metric-role { margin-left: 4px; color: #8a94a6; font-size: 9px; font-weight: 700; text-transform: uppercase; }
.cost-value { white-space: nowrap; font-variant-numeric: tabular-nums; }
.submission-link { display: inline-flex; padding: 5px 9px; border: 1px solid var(--line); border-radius: 6px; color: #475467; white-space: nowrap; font-size: 12px; font-weight: 700; }
.submission-link:hover { border-color: #9fb9db; color: var(--blue); text-decoration: none; }
.placeholder-badge { display: inline-flex; margin-top: 3px; padding: 2px 6px; border-radius: 999px; background: #f2f4f7; color: #667085; font-size: 10px; font-weight: 800; text-transform: uppercase; }
.team-badge { display: inline-flex; margin-top: 3px; padding: 2px 7px; border-radius: 999px; background: #eef4ff; color: var(--blue); font-size: 10px; font-weight: 700; white-space: nowrap; }
.unconfirmed-badge { display: inline-flex; align-items: center; gap: 3px; margin-top: 3px; padding: 2px 7px; border: 1px solid #f2cf66; border-radius: 999px; background: #fff8df; color: #8a6116; font-size: 10px; font-weight: 800; white-space: nowrap; }
.loading-cell, .empty-cell { padding: 42px !important; color: var(--muted); text-align: center; }
.data-footnote { margin: 0; padding: 13px 18px; border-top: 1px solid #edf0f4; background: #fbfcfe; color: #7a8495; font-size: 11px; }
.metric-legend { padding: 15px 18px 16px; border-top: 1px solid #edf0f4; background: #fbfcfe; color: var(--muted); }
.metric-legend-head { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; margin-bottom: 11px; font-size: 11px; }
.metric-legend-head strong { color: #344054; font-size: 12px; }
.metric-legend-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px 18px; }
.metric-legend-grid > div { display: grid; grid-template-columns: 62px 1fr; gap: 7px; align-items: start; font-size: 10.5px; line-height: 1.45; }
.metric-legend-grid strong { color: #344054; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 10.5px; }
.metric-legend-grid b { color: #475467; font-weight: 750; }
.ranking-note { margin: 12px 0 0; padding-top: 10px; border-top: 1px solid #e8edf3; font-size: 10.5px; line-height: 1.5; }
.private-placeholder { padding: 46px 24px; }
.lock-card { max-width: 680px; margin: 0 auto; padding: 26px; display: flex; align-items: center; gap: 18px; border: 1px dashed var(--line-strong); border-radius: 12px; background: var(--wash); }
.lock-card h3 { margin-bottom: 6px; }
.lock-card p { margin: 0; color: var(--muted); }
.lock-icon { display: grid; place-items: center; flex: 0 0 54px; width: 54px; height: 54px; border-radius: 12px; background: white; border: 1px solid var(--line); font-size: 21px; filter: grayscale(1); }

.track-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-bottom: 18px; }
.track-grid-single { grid-template-columns: minmax(0, 1fr); }
.track-grid-single .track-card { max-width: 760px; }
.track-card { position: relative; min-height: 220px; padding: 28px; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: white; }
.track-card.featured { border-color: #b6d3f6; background: linear-gradient(145deg, #fff 0%, #f3f8ff 100%); }
.track-number { position: absolute; right: 20px; top: 11px; color: rgba(9,105,218,.08); font-size: 70px; font-weight: 850; letter-spacing: -.07em; }
.track-tag { width: fit-content; margin-bottom: 45px; padding: 5px 8px; border-radius: 6px; background: var(--blue-soft); color: var(--blue-dark); font-size: 11px; font-weight: 800; text-transform: uppercase; }
.track-card p { margin: 0; color: var(--muted); }
.rules-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.rule-card { padding: 22px; border: 1px solid var(--line); border-radius: 12px; background: white; }
.rule-card > span { display: inline-grid; place-items: center; width: 29px; height: 29px; margin-bottom: 22px; border-radius: 8px; background: #eef5ff; color: var(--blue); font-size: 11px; font-weight: 850; }
.rule-card p { margin: 0; color: var(--muted); font-size: 14px; }
.callout { margin-top: 18px; padding: 18px 20px; border-left: 3px solid var(--blue); background: white; color: #475467; font-size: 14px; }

.metrics-section { background: white !important; }
.metrics-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.metric-card { padding: 23px; border: 1px solid var(--line); border-radius: 12px; background: white; }
.metric-card.primary-metric { border-color: #b6d3f6; background: var(--blue-pale); }
.metric-card.tie-break-metric { border-color: #d7e5f7; background: #fbfdff; }
.metric-symbol { width: fit-content; margin-bottom: 28px; padding: 5px 8px; border-radius: 6px; background: #eef2f6; color: #475467; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 12px; font-weight: 800; }
.primary-metric .metric-symbol { background: var(--blue); color: white; }
.metric-card p { margin: 0; color: var(--muted); font-size: 14px; }

.timeline { display: grid; grid-template-columns: repeat(auto-fit, minmax(165px, 1fr)); border-top: 1px solid var(--line-strong); }
.timeline-item { position: relative; min-width: 0; padding: 30px 24px 8px 0; }
.timeline-item::before { content: ""; position: absolute; top: -5px; left: 0; width: 9px; height: 9px; border: 2px solid white; border-radius: 50%; background: var(--blue); box-shadow: 0 0 0 1px var(--blue); }
.timeline-date { margin-bottom: 12px; color: var(--blue); font-size: 12px; font-weight: 800; text-transform: uppercase; }
.timeline-item h3 { margin: 0; font-size: 15px; }
.timeline-item p { margin: 5px 0 0; color: var(--muted); font-size: 13px; }

.participate-section { background: #0d2748 !important; color: white; }
.participate-section .eyebrow { color: #79b8ff; }
.participate-section h2 { color: white; }
.participate-section p { color: #c6d4e5; }
.participate-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 75px; align-items: start; }
.participate-grid > div > p { max-width: 450px; margin-bottom: 28px; }
.steps { margin: 0; padding: 0; list-style: none; }
.steps li { padding: 18px 0; display: grid; grid-template-columns: 50px 1fr; gap: 12px; border-bottom: 1px solid rgba(255,255,255,.14); }
.steps li:first-child { padding-top: 0; }
.steps li:last-child { border-bottom: 0; }
.steps li > span { color: #79b8ff; font: 800 12px ui-monospace, SFMono-Regular, Menlo, monospace; }
.steps strong { display: block; margin-bottom: 4px; }
.steps p { margin: 0; font-size: 13px; }
.participate-section code { border-color: rgba(255,255,255,.1); background: rgba(255,255,255,.08); color: #eaf2fb; }

.organizers-section { background: white !important; }
.organizer-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.organizer-grid div { padding: 17px 18px; border: 1px solid var(--line); border-radius: 10px; }
.organizer-grid strong, .organizer-grid span { display: block; }
.organizer-grid strong { font-size: 14px; }
.organizer-grid span { margin-top: 3px; color: var(--muted); font-size: 12px; }
.contact-line { margin-top: 20px; color: var(--muted); font-size: 14px; }
.site-footer { padding: 26px 0; border-top: 1px solid var(--line); background: #fbfcfe; color: var(--muted); font-size: 12px; }
.footer-wrap { display: flex; justify-content: space-between; gap: 20px; }

@media (max-width: 940px) {
  .nav a:not(.nav-github) { display: none; }
  .hero-grid { grid-template-columns: 1fr; min-height: 0; gap: 25px; padding-top: 64px; }
  .hero-visual { height: 240px; }
  .rules-grid, .organizer-grid, .policy-grid { grid-template-columns: 1fr 1fr; }
  .metrics-grid { grid-template-columns: 1fr 1fr; }
  .timeline, .icse-timeline { grid-template-columns: 1fr 1fr; border-top: 0; gap: 0 18px; }
  .timeline-item { border-top: 1px solid var(--line-strong); }
  .timeline-item::before { top: -5px; }
  .participate-grid { grid-template-columns: 1fr; gap: 45px; }
}

@media (max-width: 680px) {
  .container { width: min(100% - 28px, 1160px); }
  .site-header { position: static; }
  .nav-wrap { min-height: 64px; }
  .brand-copy small { display: none; }
  .nav-github { padding: 7px 9px; }
  .hero-grid { padding: 52px 0 48px; }
  h1 { font-size: 41px; }
  .hero-summary { font-size: 17px; }
  .hero-visual { transform: scale(.88); margin: -10px -20px; }
  .section { padding: 60px 0; }
  .split-heading { align-items: flex-start; flex-direction: column; }
  .leaderboard-controls { align-items: stretch; flex-direction: column; }
  .segmented { display: grid; grid-template-columns: 1fr 1fr; }
  .table-note { align-items: flex-start; flex-direction: column; gap: 4px; }
  .track-grid, .rules-grid, .metrics-grid, .organizer-grid, .timeline, .icse-timeline, .policy-grid, .solution-paper-note { grid-template-columns: 1fr; }
  .timeline-item { padding-right: 0; }
  .footer-wrap { flex-direction: column; gap: 5px; }
}

/* ICSE affiliation, deadline, and recognition */
.deadline-banner { position: relative; max-width: 650px; margin-top: 14px; padding: 15px 48px 15px 17px; display: grid; grid-template-columns: auto 1fr; align-items: baseline; column-gap: 14px; border: 1px solid #9fc5f2; border-radius: 10px; background: #eef6ff; color: var(--ink); text-decoration: none; }
.deadline-banner:hover { border-color: var(--blue); text-decoration: none; }
.deadline-banner .deadline-kicker { grid-column: 1 / -1; color: var(--blue-dark); font-size: 11px; font-weight: 850; letter-spacing: .09em; text-transform: uppercase; }
.deadline-banner strong { margin-top: 3px; color: var(--blue-dark); font-size: 25px; line-height: 1.1; letter-spacing: -.02em; }
.deadline-banner #hero-final-deadline-note { color: #52657d; font-size: 12px; }
.deadline-banner b { position: absolute; right: 17px; top: 50%; color: var(--blue); font-size: 22px; transform: translateY(-50%); }

.prizes-section { background: #f7faff !important; }
.prize-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 16px; }
.prize-card { min-height: 185px; padding: 26px; display: grid; grid-template-columns: 46px 1fr; gap: 17px; border: 1px solid var(--line); border-radius: var(--radius); background: white; }
.winner-prize { border-color: #9fc5f2; box-shadow: 0 8px 26px rgba(9,105,218,.08); }
.prize-icon { width: 42px; height: 42px; display: grid; place-items: center; border-radius: 10px; background: var(--blue); color: white; font-size: 17px; font-weight: 850; }
.recognition-prize .prize-icon { background: var(--blue-soft); color: var(--blue-dark); }
.prize-label { margin-bottom: 7px; color: var(--blue); font-size: 11px; font-weight: 850; letter-spacing: .08em; text-transform: uppercase; }
.prize-card p { margin: 0; color: var(--muted); font-size: 14px; }
.sponsor-callout { margin-top: 16px; padding: 18px 20px; display: grid; grid-template-columns: auto auto 1fr; align-items: center; gap: 9px 16px; border: 1px solid #d7e5f7; border-radius: 11px; background: white; }
.sponsor-callout > span { color: var(--muted); font-size: 11px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.sponsor-callout > strong { color: var(--blue-dark); font-size: 15px; }
.sponsor-callout > p { margin: 0; color: var(--muted); font-size: 13px; text-align: right; }
.timeline-item.is-final-deadline { margin-right: 10px; padding: 28px 16px 14px; border: 1px solid #9fc5f2; border-top: 3px solid var(--blue); border-radius: 10px; background: #eef6ff; }
.timeline-item.is-final-deadline::before { top: -7px; left: 15px; }
.timeline-item.is-final-deadline .timeline-date { color: var(--blue-dark); font-weight: 850; }
.timeline-item.is-final-deadline h3 { color: var(--blue-dark); }

@media (max-width: 940px) {
  .prize-grid { grid-template-columns: 1fr; }
  .sponsor-callout { grid-template-columns: 1fr; }
  .sponsor-callout > p { text-align: left; }
}
@media (max-width: 680px) {
  .deadline-banner { grid-template-columns: 1fr; row-gap: 3px; }
  .deadline-banner .deadline-kicker { grid-column: auto; }
  .prize-card { grid-template-columns: 38px 1fr; padding: 21px; }
  .prize-icon { width: 36px; height: 36px; }
}

/* Participant journey, eligibility, policies, solution papers, and FAQ */
.eligibility-panel { margin-top: 18px; padding: 22px 24px; display: grid; grid-template-columns: 42px 1fr; gap: 16px; border: 1px solid #b6d3f6; border-radius: 12px; background: var(--blue-pale); }
.eligibility-panel .eyebrow { margin-bottom: 5px; }
.eligibility-panel h3 { font-size: 19px; }
.eligibility-panel p { max-width: 900px; margin: 0; color: #52657d; font-size: 14px; }
.eligibility-icon { width: 38px; height: 38px; display: grid; place-items: center; border-radius: 9px; background: var(--blue); color: white; font-weight: 850; }
.policy-grid { margin-top: 18px; display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.policy-card { padding: 22px; border: 1px solid var(--line); border-radius: 12px; background: white; }
.policy-label { margin-bottom: 18px; color: var(--blue); font-size: 11px; font-weight: 850; letter-spacing: .08em; text-transform: uppercase; }
.policy-card p { margin: 0; color: var(--muted); font-size: 14px; }
.solution-paper-note { margin-top: 16px; padding: 21px 22px; display: grid; grid-template-columns: .7fr 1.3fr; gap: 26px; align-items: start; border: 1px solid #d7e5f7; border-radius: 11px; background: white; }
.solution-paper-note .eyebrow { margin-bottom: 5px; }
.solution-paper-note h3 { margin: 0; }
.solution-paper-note p { margin: 0; color: var(--muted); font-size: 14px; }
.timeline-group-title { margin: 5px 0 20px; font-size: 14px; color: #344054; }
.timeline-group-title-secondary { margin-top: 42px; }
.icse-timeline { grid-template-columns: repeat(6, minmax(0, 1fr)); }
.timeline-footnote { margin: 18px 0 0; color: var(--muted); font-size: 12px; }
.faq-section { background: var(--wash) !important; }
.faq-section .section-heading { max-width: 900px; margin-left: auto; margin-right: auto; }
.faq-list { width: 100%; max-width: 900px; margin: 0 auto; border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); background: transparent; }
.faq-list summary { position: relative; padding: 18px 40px 18px 0; cursor: pointer; color: var(--ink); font-weight: 750; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; position: absolute; right: 4px; top: 14px; color: var(--blue); font-size: 22px; font-weight: 400; }
.faq-list details[open] summary::after { content: "−"; }
.faq-list details p { margin: -3px 0 19px; max-width: 780px; color: var(--muted); font-size: 14px; }

@media (max-width: 680px) {
  .eligibility-panel { grid-template-columns: 1fr; }
}
@media (max-width: 940px) {
  .solution-paper-note { grid-template-columns: 1fr; }
}
@media (max-width: 680px) {
  .policy-grid, .solution-paper-note, .icse-timeline { grid-template-columns: 1fr; }
}

.rules-footer a { flex: 0 0 auto; font-weight: 750; text-decoration: none; }
@media (max-width: 760px) {
  .rules-list { grid-template-columns: 1fr; }
  .rule-row:nth-child(odd) { border-right: 0; }
  .rule-row:nth-child(-n+3) { border-bottom: 1px solid var(--line); }
  .rules-footer { align-items: flex-start; flex-direction: column; gap: 8px; }
}

@media (max-width: 900px) {
  .metric-legend-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 620px) {
  .metric-legend-head { align-items: flex-start; flex-direction: column; gap: 3px; }
  .metric-legend-grid { grid-template-columns: 1fr; }
  .leaderboard-table th:nth-child(2), .leaderboard-table td:nth-child(2) { min-width: 165px; }
}