:root {
  --ink: #111827;
  --muted: #5f6673;
  --paper: #fbfaf6;
  --panel: #ffffff;
  --line: #d8d3c7;
  --green: #2f6f4f;
  --blue: #315f88;
  --gold: #8a6419;
  --red: #9f3f34;
  --shadow: 0 16px 48px rgba(17, 24, 39, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  color-scheme: light;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  line-height: 1.55;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(rgba(17, 24, 39, 0.035) 1px, transparent 1px), linear-gradient(90deg, rgba(17, 24, 39, 0.035) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(to bottom, black, transparent 70%);
}

a {
  color: inherit;
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

img {
  display: block;
  max-width: 100%;
}

.site-header,
.site-footer,
main {
  position: relative;
}

.site-header {
  border-bottom: 1px solid var(--line);
  background: rgba(251, 250, 246, 0.88);
  backdrop-filter: blur(14px);
  position: sticky;
  top: 0;
  z-index: 10;
}

.nav {
  align-items: center;
  display: flex;
  gap: 24px;
  justify-content: space-between;
  margin: 0 auto;
  max-width: 1160px;
  padding: 16px 20px;
}

.brand {
  align-items: center;
  display: inline-flex;
  font-weight: 800;
  gap: 10px;
  letter-spacing: 0;
  text-decoration: none;
}

.brand-mark {
  align-items: center;
  background: var(--ink);
  color: white;
  display: inline-flex;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  height: 34px;
  justify-content: center;
  width: 34px;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: flex-end;
}

.nav-links a {
  border: 1px solid transparent;
  padding: 7px 10px;
  text-decoration: none;
}

.nav-links a[aria-current="page"],
.nav-links a:hover {
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.72);
}

.container {
  margin: 0 auto;
  max-width: 1160px;
  padding: 0 20px;
}

.hero {
  display: grid;
  gap: 36px;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
  min-height: 560px;
  padding-top: 72px;
  padding-bottom: 42px;
}

.eyebrow {
  color: var(--green);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  margin: 0 0 18px;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  letter-spacing: 0;
  line-height: 1.05;
  margin: 0;
}

h1 {
  font-size: clamp(2.7rem, 8vw, 6.4rem);
  max-width: 900px;
}

h2 {
  font-size: clamp(2rem, 4vw, 3.6rem);
}

h3 {
  font-size: 1.15rem;
}

p {
  margin: 0;
}

.lede {
  color: #343b48;
  font-size: clamp(1.05rem, 2vw, 1.35rem);
  margin-top: 24px;
  max-width: 720px;
}

.actions {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.button {
  align-items: center;
  border: 1px solid var(--ink);
  display: inline-flex;
  font-weight: 750;
  min-height: 44px;
  padding: 10px 16px;
  text-decoration: none;
}

.button.primary {
  background: var(--ink);
  color: white;
}

.button:hover {
  transform: translateY(-1px);
}

.hero-visual {
  align-self: end;
  border: 1px solid var(--ink);
  background: var(--panel);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.hero-visual img {
  aspect-ratio: 16 / 9;
  object-fit: cover;
  width: 100%;
}

.terminal-strip {
  border-top: 1px solid var(--ink);
  color: var(--muted);
  display: grid;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.82rem;
  gap: 8px;
  grid-template-columns: repeat(3, 1fr);
  padding: 12px;
}

.section {
  padding: 56px 0;
}

.section-header {
  align-items: end;
  display: flex;
  gap: 24px;
  justify-content: space-between;
  margin-bottom: 24px;
}

.section-header p {
  color: var(--muted);
  max-width: 520px;
}

.tool-row {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 18px;
}

.search {
  background: var(--panel);
  border: 1px solid var(--ink);
  color: var(--ink);
  font: inherit;
  min-height: 46px;
  padding: 10px 12px;
  width: min(100%, 420px);
}

.card-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.agent-card,
.panel,
.fact-card {
  background: rgba(255, 255, 255, 0.84);
  border: 1px solid var(--line);
}

.agent-card {
  display: flex;
  flex-direction: column;
  gap: 18px;
  min-height: 268px;
  padding: 18px;
  text-decoration: none;
}

.agent-card:hover {
  border-color: var(--ink);
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.agent-card p,
.fact-card p,
.panel p,
.agent-summary p,
.note {
  color: var(--muted);
}

.card-meta {
  align-items: baseline;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: space-between;
  padding-top: 12px;
}

.card-meta span {
  color: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
}

.card-meta strong {
  font-size: 0.88rem;
  line-height: 1.25;
  min-width: 0;
  text-align: right;
}

.card-top {
  align-items: flex-start;
  display: flex;
  gap: 12px;
  justify-content: space-between;
}

.badge {
  border: 1px solid var(--line);
  color: var(--muted);
  display: inline-flex;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.74rem;
  padding: 4px 7px;
  white-space: nowrap;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: auto;
}

.tag {
  background: #f3efe5;
  color: #384052;
  display: inline-flex;
  font-size: 0.78rem;
  padding: 4px 7px;
}

.agent-card.is-hidden {
  display: none;
}

.facts-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.compare-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
}

.fact-card,
.panel {
  padding: 18px;
}

.skill-card {
  display: block;
  text-decoration: none;
}

.skill-card:hover {
  border-color: var(--ink);
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.fact-card strong {
  display: block;
  font-size: 1.4rem;
  line-height: 1.1;
  margin-bottom: 8px;
}

.markdown-source {
  background: #111827;
  color: #f8fafc;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.86rem;
  line-height: 1.55;
  margin: 24px 0 0;
  overflow-x: auto;
  padding: 18px;
  white-space: pre;
}

.agent-hero {
  padding-top: 64px;
  padding-bottom: 28px;
}

.agent-hero h1 {
  font-size: clamp(2.6rem, 7vw, 5.8rem);
}

.crumbs {
  color: var(--muted);
  display: flex;
  flex-wrap: wrap;
  font-size: 0.92rem;
  gap: 8px;
  margin-bottom: 22px;
}

.profile-layout {
  display: grid;
  gap: 18px;
  grid-template-columns: minmax(0, 1fr) 330px;
  padding-bottom: 64px;
}

.agent-summary {
  background: var(--panel);
  border: 1px solid var(--ink);
  padding: 26px;
}

.agent-summary .lede {
  margin-top: 0;
}

.detail-list {
  display: grid;
  gap: 12px;
  margin: 24px 0 0;
}

.detail-item {
  border-top: 1px solid var(--line);
  display: grid;
  gap: 10px;
  grid-template-columns: 150px 1fr;
  padding-top: 12px;
}

.detail-item dt {
  color: var(--muted);
  font-weight: 700;
}

.detail-item dd {
  margin: 0;
}

.inline-list {
  margin: 0;
  padding-left: 18px;
}

.inline-list li + li {
  margin-top: 4px;
}

.side-panel {
  align-self: start;
  display: grid;
  gap: 14px;
  position: sticky;
  top: 86px;
}

.list {
  color: var(--muted);
  margin: 14px 0 0;
  padding-left: 20px;
}

.list li + li {
  margin-top: 8px;
}

.source-list {
  display: grid;
  gap: 9px;
  margin-top: 14px;
}

.hackathon-hero {
  align-items: center;
  display: grid;
  gap: 36px;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
  padding-top: 72px;
  padding-bottom: 48px;
}

.hackathon-visual {
  align-self: center;
}

.hackathon-stat-row {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 28px;
  max-width: 760px;
}

.hackathon-stat,
.timeline-item,
.prize-card,
.score-card,
.join-band {
  background: rgba(255, 255, 255, 0.86);
  border: 1px solid var(--line);
}

.hackathon-stat {
  padding: 14px;
}

.hackathon-stat span {
  display: block;
  font-size: clamp(1.35rem, 3vw, 2.1rem);
  font-weight: 850;
  line-height: 1;
}

.hackathon-stat strong {
  color: var(--muted);
  display: block;
  font-size: 0.84rem;
  line-height: 1.25;
  margin-top: 8px;
}

.timeline-list {
  display: grid;
  gap: 12px;
}

.timeline-item {
  align-items: center;
  display: grid;
  gap: 16px;
  grid-template-columns: 190px 1fr;
  padding: 16px 18px;
}

.timeline-item time {
  color: var(--green);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.86rem;
  font-weight: 800;
  text-transform: uppercase;
}

.timeline-item strong {
  font-size: 1.15rem;
}

.prize-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: minmax(0, 1.2fr) repeat(2, minmax(0, 1fr));
}

.prize-card,
.score-card {
  padding: 20px;
}

.prize-card-featured {
  border-color: var(--ink);
  box-shadow: var(--shadow);
}

.prize-card h3 {
  font-size: clamp(1.45rem, 3vw, 2.5rem);
}

.prize-card p:not(.eyebrow),
.score-card .list {
  color: var(--muted);
  margin-top: 14px;
}

.type-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 22px;
}

.score-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(6, minmax(0, 1fr));
}

.score-card {
  grid-column: span 2;
}

.score-card:nth-child(1),
.score-card:nth-child(2) {
  grid-column: span 3;
}

.score-card-top {
  align-items: start;
  display: flex;
  gap: 12px;
  justify-content: space-between;
}

.score-card-top strong {
  color: var(--green);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.86rem;
  white-space: nowrap;
}

.join-band {
  align-items: center;
  display: flex;
  gap: 24px;
  justify-content: space-between;
  padding: 26px;
}

.join-band p:not(.eyebrow) {
  color: var(--muted);
  margin-top: 12px;
  max-width: 620px;
}

.compact-actions {
  margin-top: 16px;
}

.rules-layout {
  padding-bottom: 64px;
}

.rules-content {
  max-width: 880px;
}

.rules-content h2 {
  border-top: 1px solid var(--line);
  font-size: clamp(1.55rem, 3vw, 2.2rem);
  margin-top: 34px;
  padding-top: 24px;
}

.rules-content h2:first-of-type {
  margin-top: 0;
}

.rules-content h3 {
  font-size: 1.1rem;
  margin-top: 22px;
}

.rules-content p,
.rules-content ul,
.rules-content ol {
  color: var(--muted);
  margin-top: 12px;
}

.rules-content ul,
.rules-content ol {
  padding-left: 22px;
}

.rules-content li + li {
  margin-top: 6px;
}

.rules-table-wrap {
  margin-top: 16px;
  overflow-x: auto;
}

.rules-table {
  border-collapse: collapse;
  min-width: 680px;
  width: 100%;
}

.rules-table th,
.rules-table td {
  border: 1px solid var(--line);
  padding: 10px 12px;
  text-align: left;
  vertical-align: top;
}

.rules-table th {
  background: #f3efe5;
}

.site-footer {
  border-top: 1px solid var(--line);
  color: var(--muted);
  padding: 28px 0 44px;
}

.footer-row {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: space-between;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

@media (max-width: 900px) {
  .hero,
  .profile-layout,
  .hackathon-hero {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 54px;
  }

  .card-grid,
  .compare-grid,
  .facts-grid,
  .prize-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .hackathon-stat-row,
  .score-grid {
    grid-template-columns: 1fr;
  }

  .score-card,
  .score-card:nth-child(1),
  .score-card:nth-child(2) {
    grid-column: auto;
  }

  .side-panel {
    position: static;
  }
}

@media (max-width: 640px) {
  .nav {
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
  }

  .nav-links {
    justify-content: flex-start;
  }

  .section-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .card-grid,
  .compare-grid,
  .facts-grid,
  .prize-grid {
    grid-template-columns: 1fr;
  }

  .terminal-strip {
    grid-template-columns: 1fr;
  }

  .detail-item {
    grid-template-columns: 1fr;
  }

  .timeline-item,
  .join-band {
    align-items: flex-start;
    flex-direction: column;
    grid-template-columns: 1fr;
  }
}