/* Agentic AI @ UIUC — "Big Ten Bold"
   Tokens from docs/design/2026-08-15-agentic-ai-club-brief.md */
:root {
  --black: #0d0d0d;
  --panel: #161616;
  --line: #242424;
  --orange: #ff5f05;
  --chalk: #ffffff;
  --gray: #a8a8a8;
  --navy: #13294b;
  --display: "Anton", sans-serif;
  --body: "Archivo", sans-serif;
  --mono: "JetBrains Mono", monospace;
  --pad: clamp(20px, 5vw, 56px);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  background: var(--black);
  color: var(--chalk);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.6;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

/* ---------- nav ---------- */
nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 22px var(--pad);
  gap: 20px;
  flex-wrap: wrap;
}
.logo { font-weight: 900; font-size: 18px; letter-spacing: -0.02em; }
.logo em { color: var(--orange); font-style: normal; }
.nav-links { display: flex; gap: 30px; list-style: none; font-size: 14px; font-weight: 600; color: var(--gray); flex-wrap: wrap; }
.nav-links a:hover { color: var(--chalk); }
.nav-links a[aria-current="page"] { color: var(--chalk); border-bottom: 2px solid var(--orange); padding-bottom: 3px; }

/* ---------- buttons ---------- */
.btn { display: inline-block; border-radius: 999px; font-weight: 800; font-size: 15px; padding: 13px 30px; transition: transform 0.15s ease, box-shadow 0.15s ease; }
.btn:hover { transform: translateY(-2px); }
.btn-fill { background: var(--orange); color: var(--black); }
.btn-fill:hover { box-shadow: 0 6px 24px rgba(255, 95, 5, 0.35); }
.btn-ghost { border: 2px solid var(--chalk); color: var(--chalk); padding: 11px 28px; }
.btn-sm { padding: 9px 22px; font-size: 14px; }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible { outline: 3px solid var(--orange); outline-offset: 3px; }

/* ---------- hero ---------- */
.hero { padding: clamp(36px, 6vw, 64px) var(--pad) 0; }
.kicker { font-family: var(--mono); font-size: 13px; color: var(--orange); letter-spacing: 0.14em; text-transform: uppercase; font-weight: 700; }
.mega {
  font-family: var(--display);
  font-size: clamp(56px, 11vw, 128px);
  line-height: 0.92;
  text-transform: uppercase;
  font-weight: 400;
  letter-spacing: 0.01em;
  margin-top: 18px;
}
.mega .stroke { color: transparent; -webkit-text-stroke: 2px var(--orange); }
.mega span { display: block; }
.hero-row { display: flex; justify-content: space-between; align-items: flex-end; gap: 40px; margin-top: 28px; flex-wrap: wrap; }
.hero-sub { color: var(--gray); font-size: 17px; max-width: 480px; }
.hero-ctas { display: flex; gap: 12px; flex-shrink: 0; flex-wrap: wrap; }

/* page-load stagger */
.reveal { animation: rise 0.55s cubic-bezier(0.2, 0.7, 0.2, 1) both; }
.reveal:nth-child(2) { animation-delay: 0.08s; }
.reveal:nth-child(3) { animation-delay: 0.16s; }
@keyframes rise { from { opacity: 0; transform: translateY(24px); } to { opacity: 1; transform: none; } }

/* ---------- ticker (signature) ---------- */
.ticker {
  margin-top: clamp(32px, 5vw, 52px);
  background: var(--orange);
  color: var(--black);
  font-family: var(--mono);
  font-weight: 700;
  font-size: 15px;
  padding: 12px 0;
  overflow: hidden;
  white-space: nowrap;
}
.ticker-inner { display: inline-block; animation: marquee 22s linear infinite; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ---------- sections ---------- */
section { padding: clamp(40px, 6vw, 72px) var(--pad); }
.section-head { display: flex; align-items: baseline; gap: 18px; margin-bottom: 34px; flex-wrap: wrap; }
.section-head h2 { font-family: var(--display); font-size: clamp(32px, 5vw, 52px); text-transform: uppercase; font-weight: 400; }
.section-head .count { font-family: var(--mono); color: var(--orange); font-size: 14px; font-weight: 700; }

/* ---------- cards ---------- */
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 18px; }
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 26px;
  transition: transform 0.15s ease, border-color 0.15s ease;
}
.card:hover { transform: translateY(-4px); border-color: #3a3a3a; }
.card .cat { font-family: var(--mono); font-size: 11px; color: var(--orange); text-transform: uppercase; letter-spacing: 0.12em; font-weight: 700; }
.card h3 { font-weight: 800; font-size: 20px; margin-top: 12px; line-height: 1.3; }
.card p { color: var(--gray); font-size: 14.5px; margin-top: 8px; }

/* ---------- stats ---------- */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 14px; }
.stat { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 22px 26px; }
.stat .num { font-family: var(--display); font-size: 40px; color: var(--orange); line-height: 1; }
.stat .lbl { font-family: var(--mono); font-size: 12px; color: var(--gray); margin-top: 8px; text-transform: uppercase; letter-spacing: 0.08em; }

/* ---------- schedule (events) ---------- */
.week {
  display: grid;
  grid-template-columns: 110px 1fr 1fr;
  gap: 20px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
  align-items: start;
}
.week:first-of-type { border-top: 1px solid var(--line); }
.week .wk { font-family: var(--display); font-size: 26px; color: var(--orange); text-transform: uppercase; line-height: 1.1; }
.week .slot .day { font-family: var(--mono); font-size: 11px; color: var(--gray); text-transform: uppercase; letter-spacing: 0.12em; }
.week .slot h4 { font-weight: 800; font-size: 17px; margin-top: 6px; line-height: 1.35; }
.week .slot p { color: var(--gray); font-size: 14px; margin-top: 6px; }
.week.break { background: var(--panel); border-radius: 12px; padding: 22px; border-bottom: none; margin: 10px 0; }
.week.break .wk { color: var(--gray); }
@media (max-width: 760px) { .week { grid-template-columns: 1fr; gap: 12px; } }

/* ---------- past work feature ---------- */
.feature-row { display: grid; grid-template-columns: 1.2fr 1fr; gap: 24px; align-items: center; background: var(--panel); border: 1px solid var(--line); border-radius: 16px; padding: 24px; }
.video-wrap { display: block; aspect-ratio: 16 / 9; border-radius: 12px; overflow: hidden; }
.video-wrap iframe { width: 100%; height: 100%; border: 0; display: block; }
.feature-copy .cat { font-family: var(--mono); font-size: 11px; color: var(--orange); text-transform: uppercase; letter-spacing: 0.12em; font-weight: 700; }
.feature-copy h3 { font-weight: 800; font-size: 22px; margin-top: 12px; line-height: 1.3; }
.feature-copy p:last-child { color: var(--gray); font-size: 15px; margin-top: 10px; }
@media (max-width: 820px) { .feature-row { grid-template-columns: 1fr; } }

/* ---------- projects filter ---------- */
.filters { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 30px; }
.filters button {
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 700;
  background: none;
  border: 1px solid var(--line);
  color: var(--gray);
  padding: 8px 18px;
  border-radius: 999px;
  cursor: pointer;
}
.filters button:hover { color: var(--chalk); border-color: #3a3a3a; }
.filters button.active { background: var(--orange); border-color: var(--orange); color: var(--black); }

/* ---------- team ---------- */
.person { text-align: left; }
.person .avatar {
  aspect-ratio: 1;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--navy), #1e3a63);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--display);
  font-size: 44px;
  color: var(--orange);
  margin-bottom: 16px;
}
img.avatar { width: 100%; object-fit: cover; }
.person h3 { font-size: 18px; }
.person h3 a:hover { color: var(--orange); }
.person .role { font-family: var(--mono); font-size: 12px; color: var(--orange); text-transform: uppercase; letter-spacing: 0.1em; margin-top: 4px; }
.person .focus { color: var(--gray); font-size: 13.5px; margin-top: 6px; }
.grid-5 { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 18px; }

/* ---------- join ---------- */
.join-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 18px; }
.join-panel { background: var(--panel); border: 1px solid var(--line); border-radius: 16px; padding: 36px; }
.join-panel h3 { font-family: var(--display); font-size: 30px; text-transform: uppercase; font-weight: 400; }
.join-panel p { color: var(--gray); margin: 12px 0 24px; }
form label { display: block; font-family: var(--mono); font-size: 12px; text-transform: uppercase; letter-spacing: 0.1em; color: var(--gray); margin: 18px 0 6px; }
form input, form select {
  width: 100%;
  background: var(--black);
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--chalk);
  font-family: var(--body);
  font-size: 15px;
  padding: 12px 14px;
}
form input:focus, form select:focus { border-color: var(--orange); outline: none; }
form .btn { border: none; cursor: pointer; margin-top: 24px; font-family: var(--body); }

/* ---------- big CTA band ---------- */
.cta-band { background: var(--orange); color: var(--black); text-align: center; padding: clamp(48px, 8vw, 88px) var(--pad); }
.cta-band h2 { font-family: var(--display); font-size: clamp(40px, 8vw, 88px); text-transform: uppercase; line-height: 0.95; font-weight: 400; }
.cta-band p { font-weight: 600; margin: 16px auto 28px; max-width: 520px; }
.cta-band .btn-fill { background: var(--black); color: var(--chalk); }
.cta-band .btn-ghost { border-color: var(--black); color: var(--black); }

/* ---------- footer ---------- */
footer {
  background: var(--navy);
  padding: 40px var(--pad);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  font-size: 14px;
  color: #9fb1cc;
}
footer .logo { color: var(--chalk); }
footer ul { display: flex; gap: 22px; list-style: none; flex-wrap: wrap; }
footer a:hover { color: var(--chalk); }

@media (prefers-reduced-motion: reduce) {
  .ticker-inner { animation: none; }
  .reveal { animation: none; }
  .btn, .card { transition: none; }
}