/* ============================================================
   GATOR HACK V — Design System
   UF orange + UF blue × origami geometry × thin outlines
   × modern sans-serif × white space × limited detail
   ============================================================ */

:root {
  --uf-orange: #FA4616;
  --uf-blue: #0021A5;
  --orange-tint: #FDD9CD;
  --orange-wash: #FEF0EB;
  --blue-wash: #EEF1FB;
  --paper: #FFFFFF;
  --ink: #33418F;
  --placeholder: #E9E5DF;
  --border: 1.5px solid var(--uf-blue);
  --radius: 2px;
  --font: "Jost", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --container: 1180px;
}

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  font-weight: 400;
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}

img, video { max-width: 100%; height: auto; display: block; }

a { color: var(--uf-blue); text-decoration: none; }

h1, h2, h3, h4 { color: var(--uf-blue); line-height: 1.15; margin: 0 0 0.5em; }

p { margin: 0 0 1em; }

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 32px;
}

.icon {
  width: 1em; height: 1em;
  stroke: currentColor; fill: none;
  stroke-width: 1.5;
  stroke-linecap: round; stroke-linejoin: round;
  display: inline-block;
  vertical-align: middle;
  flex: none;
}

/* ---------- Typography helpers ---------- */
.display {
  font-weight: 200;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--uf-blue);
  font-size: clamp(44px, 6vw, 72px);
  line-height: 1.02;
}

.display b, .wordmark b { font-weight: 800; letter-spacing: 0.01em; }

.display .v, .wordmark .v {
  color: var(--uf-orange);
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 600;
  font-size: 0.62em;
  vertical-align: baseline;
  margin-left: 0.12em;
}

.rule {
  width: 34px; height: 3px;
  background: var(--uf-orange);
  border: none; margin: 22px 0;
}

.rule--center { margin-left: auto; margin-right: auto; }

.section-title {
  font-size: 21px;
  font-weight: 600;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  margin-bottom: 6px;
}

.section-head { margin-bottom: 40px; }
.section-head .rule { margin: 14px 0 0; }
.section-head--center { text-align: center; }
.section-head--center .rule { margin: 14px auto 0; }

.tagline {
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.lead { max-width: 46ch; }

.orange { color: var(--uf-orange); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 24px;
  border: var(--border);
  border-radius: var(--radius);
  background: var(--paper);
  color: var(--uf-blue);
  font-family: var(--font);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background 0.18s ease, color 0.18s ease;
  white-space: nowrap;
}

.btn:hover, .btn:focus-visible { background: var(--uf-blue); color: #fff; }

.btn .icon { width: 17px; height: 17px; }

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(6px);
}

.site-header .container {
  display: flex;
  align-items: center;
  gap: 28px;
  min-height: 88px;
}

.logo { display: flex; align-items: center; }
.logo img { height: 52px; width: auto; }

.site-nav { display: flex; gap: 34px; margin-left: auto; }

.site-nav a {
  font-size: 13.5px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 6px 0;
  border-bottom: 2.5px solid transparent;
}

.site-nav a:hover { color: var(--uf-orange); }

.site-nav a[aria-current="page"] {
  color: var(--uf-blue);
  border-bottom-color: var(--uf-orange);
}

.nav-toggle {
  display: none;
  margin-left: auto;
  border: var(--border);
  border-radius: var(--radius);
  background: none;
  color: var(--uf-blue);
  padding: 9px 11px;
  cursor: pointer;
}

.nav-toggle .icon { width: 22px; height: 22px; }

/* ---------- Hero ---------- */
.hero { padding: 40px 0 64px; }

.hero .container {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
  gap: 48px;
  align-items: center;
}

.hero--tall .container { align-items: end; }

.hero-copy .display { margin-bottom: 0; }

.hero-copy .tagline { margin: 26px 0 0; }

.hero-copy .lead { margin-top: 4px; }

.hero-art { position: relative; }

.hero-art img, .hero-art video { width: 100%; mix-blend-mode: multiply; }

.section-rule {
  border: none;
  border-top: 1.5px solid var(--uf-orange);
  margin: 0;
}

/* ---------- Sections ---------- */
.section { padding: 72px 0; }
.section--tight { padding-top: 40px; }
.section--wash { background: var(--blue-wash); }

/* ---------- Card grids ---------- */
.card-grid { display: grid; gap: 26px; }
.card-grid--3 { grid-template-columns: repeat(3, 1fr); }
.card-grid--4 { grid-template-columns: repeat(4, 1fr); }

.card {
  border: var(--border);
  border-radius: var(--radius);
  background: var(--paper);
  padding: 40px 30px 34px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.card .icon { width: 56px; height: 56px; stroke-width: 1.2; margin-bottom: 22px; }

.card h3 {
  font-size: 17px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.card p { font-size: 15.5px; max-width: 30ch; }

.card .btn { margin-top: auto; }

.card .price {
  color: var(--uf-orange);
  font-size: 32px;
  font-weight: 600;
  margin: 2px 0 6px;
}

.card .price--lg { font-size: 40px; }

/* ---------- Icon feature rows ---------- */
.feature-row {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 1fr;
  align-items: start;
}

.feature {
  text-align: center;
  padding: 0 22px;
  border-left: 1px solid var(--uf-orange);
}

.feature:first-child { border-left: none; }

.feature .icon { width: 48px; height: 48px; stroke-width: 1.2; margin-bottom: 14px; }

.feature h4 {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  margin-bottom: 6px;
}

.feature p { font-size: 14.5px; margin: 0; }

/* ---------- Info list (date / location / etc.) ---------- */
.info-list { display: grid; gap: 26px; }

.info-item { display: flex; gap: 16px; align-items: flex-start; }

.info-item .icon { width: 30px; height: 30px; stroke-width: 1.3; margin-top: 3px; }

.info-item h4 {
  font-size: 13.5px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin: 0;
}

.info-item p { margin: 2px 0 0; }

/* ---------- Stat strip ---------- */
.stat-strip {
  border: var(--border);
  border-radius: var(--radius);
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 1fr;
  padding: 34px 0;
}

.stat {
  text-align: center;
  border-left: 1px solid var(--uf-blue);
  padding: 4px 10px;
}

.stat:first-child { border-left: none; }

.stat strong {
  display: block;
  color: var(--uf-orange);
  font-size: clamp(30px, 3.4vw, 42px);
  font-weight: 500;
  line-height: 1.1;
}

.stat span {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--uf-blue);
}

/* ---------- History timeline ---------- */
.history {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 18px;
  position: relative;
  padding-top: 10px;
}

.history::before {
  content: "";
  position: absolute;
  left: 2%; right: 2%;
  top: 96px;
  border-top: 1.5px solid var(--uf-blue);
}

.history-item { text-align: center; position: relative; }

.history-item img {
  height: 110px;
  width: auto;
  margin: 0 auto;
  object-fit: contain;
  position: relative;
  z-index: 1;
}

.history-item img.h-1 { height: 48px; margin-top: 62px; }
.history-item img.h-2 { height: 64px; margin-top: 46px; }
.history-item img.h-3 { height: 78px; margin-top: 32px; }
.history-item img.h-4 { height: 94px; margin-top: 16px; }
.history-item img.h-5 { height: 110px; margin-top: 0; }

.history-item h4 { font-size: 19px; margin: 16px 0 4px; }

.history-item p { font-size: 14.5px; margin: 0 auto; max-width: 24ch; }

/* ---------- CTA band ---------- */
.cta-band {
  border: var(--border);
  border-radius: var(--radius);
  padding: 40px 48px;
  display: flex;
  align-items: center;
  gap: 40px;
}

.cta-band .plane { width: 150px; flex: none; color: var(--uf-orange); }

.cta-band .plane svg { width: 100%; height: auto; }

.cta-band h2 {
  font-size: 24px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin: 0 0 6px;
}

.cta-band p { margin: 0; }

.cta-band .btn { margin-left: auto; }

/* ---------- Schedule ---------- */
.schedule-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border: var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.day { border-left: var(--border); }
.day:first-child { border-left: none; }

.day-head {
  background: var(--uf-blue);
  color: #fff;
  text-align: center;
  font-size: 14.5px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 14px 10px;
}

.day-events { padding: 28px 22px 28px 18px; position: relative; }

.event {
  display: grid;
  grid-template-columns: 62px 14px 34px 1fr;
  gap: 10px;
  align-items: flex-start;
  padding: 15px 0;
  position: relative;
}

.event time {
  font-size: 13.5px;
  font-weight: 500;
  color: var(--uf-blue);
  text-align: right;
  padding-top: 3px;
}

.event .dot {
  width: 9px; height: 9px;
  border-radius: 50%;
  background: var(--uf-orange);
  margin: 8px auto 0;
  position: relative;
  z-index: 1;
}

.event::before {
  content: "";
  position: absolute;
  left: 76px;
  top: 0; bottom: 0;
  border-left: 1.5px solid var(--uf-blue);
  opacity: 0.35;
}

.event:first-child::before { top: 20px; }
.event:last-child::before { bottom: auto; height: 20px; }

.event .icon { width: 26px; height: 26px; stroke-width: 1.3; margin-top: 2px; }

.event h4 { font-size: 15.5px; font-weight: 600; margin: 0; }

.event p { font-size: 13.5px; margin: 1px 0 0; }

/* ---------- Milestones (project plan) ---------- */
.milestones {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 8px;
}

.milestone { text-align: center; flex: 1; }

.milestone .icon { width: 52px; height: 52px; stroke-width: 1.2; margin-bottom: 14px; }

.milestone h4 {
  font-size: 14.5px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 4px;
}

.milestone .when {
  color: var(--uf-orange);
  font-size: 13.5px;
  font-weight: 600;
  letter-spacing: 0.06em;
  display: block;
  margin-bottom: 6px;
}

.milestone p { font-size: 14px; margin: 0 auto; max-width: 22ch; }

.milestone-arrow {
  flex: none;
  color: var(--uf-blue);
  margin-top: 20px;
}

.milestone-arrow .icon { width: 36px; height: 36px; }

/* ---------- Notice band ---------- */
.notice-band {
  background: var(--blue-wash);
  border-radius: var(--radius);
  padding: 26px 34px;
  display: flex;
  align-items: center;
  gap: 22px;
}

.notice-band .icon { width: 40px; height: 40px; stroke-width: 1.3; color: var(--uf-blue); }

.notice-band h3 {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin: 0;
}

.notice-band p { margin: 0; font-size: 15px; }

.notice-band .btn { margin-left: auto; background: transparent; }
.notice-band .btn:hover { background: var(--uf-blue); }

/* ---------- Prize banner ---------- */
.prize-banner {
  border: var(--border);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  gap: 36px;
  padding: 30px 44px;
}

.prize-banner .icon { width: 74px; height: 74px; stroke-width: 1.1; color: var(--uf-orange); flex: none; }

.prize-banner h2 { font-size: clamp(28px, 3.6vw, 42px); font-weight: 700; margin: 0; }

.prize-banner p { margin: 2px 0 0; }

.prize-banner .confetti { margin-left: auto; color: var(--uf-orange); flex: none; }

/* ---------- Sponsor challenge cards ---------- */
.challenge {
  border: var(--border);
  border-radius: var(--radius);
  padding: 26px 28px;
  display: flex;
  gap: 20px;
  align-items: center;
}

.challenge .icon { width: 52px; height: 52px; stroke-width: 1.2; flex: none; }

.challenge h3 {
  font-size: 14.5px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin: 0;
}

.challenge .price { color: var(--uf-orange); font-size: 26px; font-weight: 600; }

.challenge p { font-size: 14px; margin: 0; }

/* ---------- Criteria strip ---------- */
.criteria-strip {
  border: var(--border);
  border-radius: var(--radius);
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 1fr;
  padding: 30px 8px;
}

.criterion {
  display: flex;
  gap: 14px;
  padding: 0 22px;
  border-left: 1px solid var(--uf-orange);
  align-items: flex-start;
}

.criterion:first-child { border-left: none; }

.criterion .icon { width: 36px; height: 36px; stroke-width: 1.3; margin-top: 2px; flex: none; }

.criterion h4 {
  font-size: 13.5px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin: 0 0 3px;
}

.criterion p { font-size: 13.5px; margin: 0; }

/* ---------- FAQ ---------- */
.faq-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 48px;
  align-items: start;
}

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

.topic-list h3 {
  font-size: 17px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.topic {
  display: flex;
  align-items: center;
  gap: 14px;
  border: var(--border);
  border-radius: var(--radius);
  background: var(--paper);
  color: var(--uf-blue);
  font-family: var(--font);
  font-size: 13.5px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 15px 18px;
  cursor: pointer;
  text-align: left;
  transition: background 0.15s ease;
}

.topic .icon { width: 24px; height: 24px; stroke-width: 1.4; }

.topic:hover { background: var(--orange-wash); }

.topic[aria-selected="true"] {
  border-color: var(--uf-orange);
  color: var(--uf-orange);
  background: var(--orange-wash);
  box-shadow: inset 4px 0 0 var(--uf-orange);
}

.qa-group h3 {
  font-size: 20px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 18px;
}

.qa {
  border: 1px solid var(--uf-blue);
  border-radius: var(--radius);
  margin-bottom: 14px;
}

.qa summary {
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 17px 22px;
  cursor: pointer;
  font-size: 16.5px;
  font-weight: 600;
  color: var(--uf-blue);
}

.qa summary::-webkit-details-marker { display: none; }

.qa summary::after {
  content: "+";
  font-size: 24px;
  font-weight: 300;
  line-height: 1;
  flex: none;
}

.qa[open] summary::after { content: "−"; }

.qa .qa-body { padding: 0 22px 18px; font-size: 15.5px; }

/* ---------- Contact band ---------- */
.contact-band {
  background: var(--blue-wash);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  gap: 48px;
  padding: 40px 52px;
}

.contact-band img { width: 260px; flex: none; }

.contact-band h2 {
  font-size: 24px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.contact-band .contact-line {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 8px 0;
  font-weight: 500;
}

.contact-band .contact-line .icon { width: 22px; height: 22px; }

.contact-band .btn { margin-left: auto; background: transparent; flex: none; }
.contact-band .btn:hover { background: var(--uf-blue); }

/* ---------- Sponsors ---------- */
.tier { margin-bottom: 44px; }

.tier > h3 {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  display: inline-block;
  border-bottom: 3px solid var(--uf-orange);
  padding-bottom: 5px;
  margin-bottom: 20px;
}

.logo-grid { display: grid; gap: 22px; }
.logo-grid--4 { grid-template-columns: repeat(4, 1fr); }
.logo-grid--5 { grid-template-columns: repeat(5, 1fr); }

.logo-tile {
  border: 1px solid var(--uf-blue);
  border-radius: var(--radius);
  min-height: 96px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 18px;
  background: var(--paper);
}

.logo-tile img { max-height: 44px; width: auto; }

.logo-tile .ph {
  color: var(--uf-blue);
  opacity: 0.45;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.tier--platinum .logo-tile { min-height: 118px; }

/* ---------- Gallery placeholders ---------- */
.gallery {
  display: grid;
  grid-template-columns: repeat(5, 1fr) auto;
  gap: 20px;
  align-items: center;
}

.shot {
  background: var(--placeholder);
  border-radius: var(--radius);
  aspect-ratio: 4 / 3;
  position: relative;
  overflow: hidden;
}

.shot svg { position: absolute; inset: 0; width: 100%; height: 100%; }

/* ---------- Mini CTA ---------- */
.mini-cta {
  display: flex;
  align-items: center;
  gap: 36px;
  justify-content: center;
  padding: 10px 0;
}

.mini-cta .plane { width: 120px; color: var(--uf-orange); flex: none; }

.mini-cta h3 {
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin: 0 0 4px;
}

.mini-cta p { margin: 0 0 12px; font-size: 15px; }

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1.5px solid var(--uf-orange);
  padding: 44px 0 30px;
  margin-top: 40px;
}

.site-footer .cols {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 40px;
  align-items: start;
}

.footer-mark .wordmark {
  font-size: 26px;
  font-weight: 200;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--uf-blue);
}

.footer-mark p {
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin: 8px 0 0;
}

.site-footer h4 {
  font-size: 13.5px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 6px;
}

.site-footer .socials { display: flex; gap: 16px; margin-top: 14px; }

.site-footer .socials a { color: var(--uf-blue); }
.site-footer .socials a:hover { color: var(--uf-orange); }
.site-footer .socials .icon { width: 24px; height: 24px; }

.site-footer .fineprint {
  text-align: center;
  font-size: 13.5px;
  margin-top: 38px;
  color: var(--ink);
}

/* ---------- Utilities & page-specific ---------- */
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  margin: -1px; padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.split {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 56px;
  align-items: start;
}

.hero-copy .gator-fly {
  max-width: 440px;
  max-height: 210px;
  width: auto;
  object-fit: contain;
  margin: 0 0 10px;
}

/* generated origami icon images */
.icon-img {
  height: 64px;
  width: auto;
  max-width: 110px;
  object-fit: contain;
  display: block;
}

.card .icon-img { height: 78px; margin: 0 auto 20px; }
.feature .icon-img { height: 58px; margin: 0 auto 14px; }
.criterion .icon-img { height: 40px; margin-top: 2px; flex: none; }
.challenge .icon-img { height: 56px; flex: none; }
.prize-banner .icon-img { height: 76px; flex: none; }

.open-card {
  border: var(--border);
  border-radius: var(--radius);
  padding: 28px;
  text-align: left;
}

.open-card img { max-width: 220px; margin: 0 auto 18px; }

.open-card h4 {
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin: 0;
}

.open-card .rule { margin: 12px 0 0; }

.about-aside { display: grid; gap: 30px; }

.values-list { list-style: none; padding: 0; margin: 0; text-align: left; display: inline-block; }
.values-list li { padding-left: 20px; position: relative; margin-bottom: 6px; font-size: 15.5px; }
.values-list li::before {
  content: "";
  position: absolute;
  left: 0; top: 0.55em;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--uf-orange);
}

.col-rule { border-left: 1px solid var(--uf-orange); }

@media (max-width: 900px) {
  .split { grid-template-columns: 1fr; gap: 40px; }
  .col-rule { border-left: none; }
}

/* ---------- Motion / reveal ---------- */
@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity 0.6s ease, transform 0.6s ease;
  }
  .reveal.is-in { opacity: 1; transform: none; }
}

/* ---------- Responsive ---------- */
@media (max-width: 1020px) {
  .card-grid--4 { grid-template-columns: repeat(2, 1fr); }
  .feature-row { grid-auto-flow: row; grid-template-columns: repeat(2, 1fr); gap: 28px 0; }
  .feature:nth-child(odd) { border-left: none; }
  .criteria-strip { grid-auto-flow: row; grid-template-columns: 1fr 1fr; gap: 22px 0; }
  .criterion:nth-child(odd) { border-left: none; }
  .logo-grid--4 { grid-template-columns: repeat(2, 1fr); }
  .logo-grid--5 { grid-template-columns: repeat(3, 1fr); }
  .gallery { grid-template-columns: repeat(3, 1fr); }
  .stat-strip { grid-auto-flow: row; grid-template-columns: repeat(3, 1fr); gap: 24px 0; }
  .stat:nth-child(4) { border-left: none; }
  .history { grid-template-columns: repeat(5, 1fr); gap: 8px; }
}

@media (max-width: 900px) {
  .site-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    background: var(--paper);
    border-top: 1px solid var(--uf-orange);
    border-bottom: 1.5px solid var(--uf-blue);
    flex-direction: column;
    gap: 0;
    padding: 12px 32px 18px;
  }
  .site-nav.open { display: flex; }
  .site-nav a { padding: 12px 0; border-bottom: none; }
  .site-nav a[aria-current="page"] { color: var(--uf-orange); }
  .site-header .register-btn { margin-left: auto; }
  .nav-toggle { display: inline-flex; margin-left: 12px; }
  .site-header { position: relative; }

  .hero .container { grid-template-columns: 1fr; gap: 36px; }
  .hero-art { order: -1; max-width: 560px; }

  .schedule-grid { grid-template-columns: 1fr; }
  .day { border-left: none; border-top: var(--border); }
  .day:first-child { border-top: none; }

  .faq-layout { grid-template-columns: 1fr; }
  .topic-list { grid-template-columns: repeat(2, 1fr); }

  .milestones { flex-direction: column; align-items: center; gap: 26px; }
  .milestone-arrow { transform: rotate(90deg); margin: 0; }

  .cta-band { flex-direction: column; text-align: center; gap: 22px; }
  .cta-band .btn { margin-left: 0; }

  .contact-band { flex-direction: column; text-align: center; gap: 26px; padding: 36px 28px; }
  .contact-band .btn { margin-left: 0; }
  .contact-band .contact-line { justify-content: center; }

  .prize-banner { flex-wrap: wrap; gap: 20px; }
  .notice-band { flex-wrap: wrap; }
  .notice-band .btn { margin-left: 0; }

  .site-footer .cols { grid-template-columns: 1fr; gap: 28px; }

  .history { grid-template-columns: repeat(2, 1fr); gap: 32px 12px; }
  .history::before { display: none; }
  .history-item img { margin-top: 0 !important; }
}

@media (max-width: 640px) {
  .card-grid--3, .card-grid--4 { grid-template-columns: 1fr; }
  .feature-row { grid-template-columns: 1fr; }
  .feature { border-left: none; }
  .criteria-strip { grid-template-columns: 1fr; }
  .criterion { border-left: none; }
  .logo-grid--4, .logo-grid--5 { grid-template-columns: repeat(2, 1fr); }
  .gallery { grid-template-columns: repeat(2, 1fr); }
  .stat-strip { grid-template-columns: 1fr 1fr; }
  .stat { border-left: none; }
  .topic-list { grid-template-columns: 1fr; }
  .mini-cta { flex-direction: column; text-align: center; }
  .container { padding: 0 22px; }
  .section { padding: 52px 0; }
}