:root {
  --bg: #07090b;
  --bg-elevated: #0d1115;
  --bg-soft: #11161c;
  --panel: rgba(17, 22, 28, 0.78);
  --panel-solid: #11161c;
  --text: #f4f8fb;
  --muted: #aab5c0;
  --muted-strong: #c6d0da;
  --line: rgba(198, 208, 218, 0.16);
  --cyan: #46e7ff;
  --blue: #3f7bff;
  --violet: #8d5cff;
  --lime: #9cff4a;
  --amber: #ffcc66;
  --danger: #ff5c7a;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.34);
  --radius: 8px;
  --shell: min(1160px, calc(100vw - 40px));
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  margin: 0;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    linear-gradient(180deg, rgba(70, 231, 255, 0.04), transparent 28rem),
    var(--bg);
  color: var(--text);
  min-width: 320px;
  overflow-x: hidden;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -2;
  content: "";
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(to bottom, black, transparent 85%);
}

a {
  color: inherit;
  text-decoration: none;
}

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

p,
h1,
h2,
h3 {
  margin-top: 0;
}

p {
  color: var(--muted);
  line-height: 1.7;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  font: inherit;
}

:focus-visible {
  outline: 3px solid rgba(70, 231, 255, 0.8);
  outline-offset: 4px;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: 12px;
  z-index: 100;
  padding: 10px 14px;
  background: var(--cyan);
  color: #031014;
  transform: translateY(-160%);
}

.skip-link:focus {
  transform: translateY(0);
}

.page-shell {
  width: var(--shell);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 20px;
  width: min(1240px, calc(100vw - 28px));
  margin: 12px auto 0;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(7, 9, 11, 0.76);
  backdrop-filter: blur(18px);
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.24);
  transition:
    transform 0.22s ease,
    background 0.22s ease,
    border-color 0.22s ease;
}

.site-header.is-scrolled {
  border-color: rgba(70, 231, 255, 0.22);
  background: rgba(7, 9, 11, 0.88);
}

.site-header.is-hidden {
  transform: translateY(-130%);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  color: var(--text);
  white-space: nowrap;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border: 1px solid rgba(70, 231, 255, 0.44);
  border-radius: 50%;
  color: var(--cyan);
  box-shadow: inset 0 0 18px rgba(70, 231, 255, 0.2);
}

.main-nav {
  display: flex;
  justify-content: center;
  gap: 18px;
  font-size: 14px;
  color: var(--muted-strong);
}

.main-nav a,
.site-footer a {
  transition: color 0.2s ease;
}

.main-nav a:hover,
.site-footer a:hover {
  color: var(--cyan);
}

.header-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
}

.nav-toggle {
  position: relative;
  display: none;
  place-items: center;
  width: 40px;
  height: 40px;
  border: 1px solid rgba(70, 231, 255, 0.28);
  border-radius: var(--radius);
  background: rgba(70, 231, 255, 0.08);
  color: var(--text);
  cursor: pointer;
}

.nav-toggle span {
  position: absolute;
  left: 10px;
  top: 50%;
  display: block;
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background: currentColor;
  transition:
    transform 0.2s ease,
    opacity 0.2s ease;
}

.nav-toggle span:nth-child(1) {
  transform: translateY(-6px);
}

.nav-toggle span:nth-child(3) {
  transform: translateY(6px);
}

.site-header.is-menu-open .nav-toggle span:nth-child(1) {
  transform: rotate(45deg);
}

.site-header.is-menu-open .nav-toggle span:nth-child(2) {
  opacity: 0;
}

.site-header.is-menu-open .nav-toggle span:nth-child(3) {
  transform: rotate(-45deg);
}

.mobile-nav {
  display: none;
  grid-column: 1 / -1;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  padding-top: 10px;
  border-top: 1px solid var(--line);
}

.mobile-nav a {
  min-height: 42px;
  padding: 12px;
  border: 1px solid rgba(198, 208, 218, 0.14);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.045);
  color: var(--muted-strong);
  font-size: 14px;
  font-weight: 800;
}

.mobile-nav a:hover {
  border-color: rgba(70, 231, 255, 0.34);
  color: var(--text);
}

.date-pill {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 12px;
  border: 1px solid rgba(156, 255, 74, 0.28);
  border-radius: 999px;
  color: var(--muted-strong);
  font-size: 13px;
  white-space: nowrap;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 0;
  min-height: 48px;
  max-width: 100%;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-weight: 800;
  line-height: 1.1;
  text-align: center;
  overflow-wrap: anywhere;
  white-space: normal;
  transition:
    transform 0.2s ease,
    border-color 0.2s ease,
    background 0.2s ease,
    color 0.2s ease,
    box-shadow 0.2s ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  color: #041014;
  background: linear-gradient(135deg, var(--lime), var(--cyan));
  box-shadow: 0 14px 42px rgba(70, 231, 255, 0.22);
}

.button-secondary {
  color: var(--text);
  border-color: rgba(70, 231, 255, 0.34);
  background: rgba(70, 231, 255, 0.08);
}

.button-secondary:hover {
  border-color: rgba(70, 231, 255, 0.72);
  background: rgba(70, 231, 255, 0.14);
}

.button-ghost {
  min-height: 44px;
  color: var(--muted-strong);
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.04);
}

.button-small {
  min-height: 36px;
  padding-inline: 14px;
  font-size: 14px;
}

.hero {
  position: relative;
  min-height: calc(100svh - 32px);
  overflow: hidden;
  margin-top: -62px;
  padding: 152px 0 80px;
  isolation: isolate;
}

.hero-media {
  position: absolute;
  inset: 0;
  z-index: -3;
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.95) contrast(1.08) brightness(0.82);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: -2;
  background:
    linear-gradient(90deg, rgba(7, 9, 11, 0.94) 0%, rgba(7, 9, 11, 0.72) 45%, rgba(7, 9, 11, 0.34) 100%),
    linear-gradient(180deg, rgba(7, 9, 11, 0.4), #07090b 94%);
}

.hero-content {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 680px) minmax(300px, 410px);
  align-items: center;
  gap: 48px;
}

.hero-copy {
  min-width: 0;
  width: 100%;
  max-width: 760px;
}

.eyebrow,
.section-label {
  margin-bottom: 14px;
  color: var(--cyan);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 840px;
  margin-bottom: 12px;
  font-size: clamp(48px, 7.4vw, 92px);
  line-height: 0.94;
  letter-spacing: 0;
}

.hero h1 span,
.hero-kicker span {
  display: inline-block;
}

.hero-kicker {
  margin-bottom: 22px;
  color: var(--lime);
  font-size: clamp(28px, 4.2vw, 56px);
  font-weight: 900;
  line-height: 1;
}

.hero-lede {
  max-width: 720px;
  color: #d8e3eb;
  font-size: 18px;
  overflow-wrap: break-word;
}

.signal-line {
  display: inline-flex;
  padding: 8px 12px;
  border: 1px solid rgba(156, 255, 74, 0.34);
  border-radius: var(--radius);
  color: var(--lime);
  background: rgba(156, 255, 74, 0.08);
  font-weight: 900;
}

.hero-buttons,
.venue-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  min-width: 0;
  margin: 22px 0 12px;
}

.microcopy {
  color: var(--muted-strong);
  font-size: 14px;
}

.hero-flow {
  position: relative;
  min-width: 0;
  padding: 22px;
  border: 1px solid rgba(70, 231, 255, 0.26);
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, rgba(70, 231, 255, 0.1), rgba(141, 92, 255, 0.08)),
    rgba(8, 13, 16, 0.46);
  box-shadow: var(--shadow);
}

.hero-flow::before {
  position: absolute;
  inset: 10px;
  content: "";
  border: 1px solid rgba(156, 255, 74, 0.12);
  border-radius: 6px;
  pointer-events: none;
}

.flow-step {
  position: relative;
  z-index: 1;
  padding: 15px;
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: var(--radius);
  background: rgba(7, 9, 11, 0.72);
}

.flow-core {
  border-color: rgba(156, 255, 74, 0.42);
  box-shadow: inset 0 0 28px rgba(156, 255, 74, 0.08);
}

.flow-label {
  color: var(--text);
  font-weight: 800;
}

.flow-arrow {
  display: block;
  padding: 8px 0;
  color: var(--cyan);
  text-align: center;
  font-size: 24px;
  line-height: 1;
}

.flow-actions {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.flow-actions span,
.chip-cloud span,
.awards-strip span,
.rules-list span,
.idea-column span,
.partner-grid span {
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.055);
  color: var(--muted-strong);
}

.flow-actions span {
  padding: 8px 10px;
  font-size: 13px;
}

.chip-cloud {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding-top: 14px;
}

.chip-cloud span {
  padding: 9px 12px;
  color: #dfe9ef;
  backdrop-filter: blur(8px);
}

.countdown-band {
  border-block: 1px solid var(--line);
  background:
    linear-gradient(90deg, rgba(70, 231, 255, 0.08), rgba(156, 255, 74, 0.06), rgba(255, 204, 102, 0.05)),
    #0a0d10;
}

.countdown-grid {
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: 24px;
  padding: 26px 0;
}

.countdown-grid h2 {
  margin: 0;
  font-size: clamp(26px, 3vw, 42px);
}

.countdown {
  display: grid;
  grid-template-columns: repeat(4, minmax(76px, 1fr));
  gap: 8px;
}

.countdown div {
  min-width: 76px;
  padding: 12px;
  border: 1px solid rgba(70, 231, 255, 0.22);
  border-radius: var(--radius);
  background: rgba(7, 9, 11, 0.5);
  text-align: center;
}

.countdown strong {
  display: block;
  color: var(--text);
  font-size: 30px;
  line-height: 1;
}

.countdown span {
  color: var(--muted);
  font-size: 12px;
}

.section {
  padding: 92px 0;
}

.section-contrast {
  border-block: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.035), transparent),
    #0a0e12;
}

.section-highlight {
  border-block: 1px solid rgba(156, 255, 74, 0.13);
  background:
    linear-gradient(135deg, rgba(156, 255, 74, 0.08), rgba(70, 231, 255, 0.035) 42%, transparent),
    #080c0f;
}

.two-column,
.venue-layout,
.partners-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1fr);
  gap: 56px;
  align-items: start;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 34px;
}

h2 {
  margin-bottom: 18px;
  color: var(--text);
  font-size: clamp(34px, 4.4vw, 62px);
  line-height: 1.02;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  color: var(--text);
  font-size: 20px;
  line-height: 1.2;
  letter-spacing: 0;
}

.rich-text p {
  font-size: 17px;
}

.legal-note {
  color: #8d9aa5;
  font-size: 13px;
}

.card-grid {
  display: grid;
  gap: 14px;
}

.card-grid.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.card-grid.four {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.info-card,
.build-card,
.track-card,
.mode-card,
.prize-card,
.audience-grid article,
.criteria-grid article,
.mentor-grid article,
.venue-panel,
.idea-column {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.045), transparent),
    var(--panel);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.16);
}

.info-card,
.build-card,
.track-card,
.mode-card,
.audience-grid article,
.criteria-grid article,
.mentor-grid article,
.idea-column {
  padding: 22px;
}

.info-card p,
.build-card p,
.track-card p,
.mode-card p,
.audience-grid p,
.criteria-grid p {
  margin-bottom: 0;
}

.compact h3 {
  font-size: 18px;
}

.card-index,
.track-card span,
.mode-card span,
.prize-card span,
.mentor-grid span {
  display: inline-block;
  margin-bottom: 20px;
  color: var(--cyan);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.build-card {
  min-height: 190px;
  transition:
    transform 0.2s ease,
    border-color 0.2s ease,
    background 0.2s ease;
}

.build-card:hover,
.track-card:hover,
.info-card:hover {
  transform: translateY(-4px);
  border-color: rgba(70, 231, 255, 0.34);
}

.section-action {
  margin-top: 28px;
}

.mode-grid,
.prize-grid,
.audience-grid,
.criteria-grid,
.mentor-grid {
  display: grid;
  gap: 14px;
}

.mode-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 28px;
}

.track-card.special {
  border-color: rgba(156, 255, 74, 0.3);
}

.prize-grid {
  grid-template-columns: 1.25fr 1fr 1fr;
}

.prize-card {
  padding: 28px;
}

.prize-media {
  position: relative;
  display: grid;
  place-items: center;
  aspect-ratio: 16 / 10;
  margin: 0 0 22px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, rgba(70, 231, 255, 0.12), rgba(156, 255, 74, 0.08)),
    #f5f8f8;
}

.prize-card.grand .prize-media {
  aspect-ratio: 1 / 1;
}

.prize-media img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 14px;
}

.prize-card strong {
  display: block;
  margin-bottom: 18px;
  color: var(--lime);
  font-size: 22px;
}

.prize-card.grand {
  border-color: rgba(156, 255, 74, 0.4);
  background:
    linear-gradient(135deg, rgba(156, 255, 74, 0.16), rgba(70, 231, 255, 0.07)),
    var(--panel-solid);
}

.awards-strip,
.rules-list,
.partner-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.awards-strip span,
.rules-list span,
.partner-grid span {
  padding: 10px 12px;
}

.note-box {
  margin-top: 24px;
  padding: 18px 20px;
  border: 1px solid rgba(255, 204, 102, 0.26);
  border-radius: var(--radius);
  background: rgba(255, 204, 102, 0.07);
}

.note-box p {
  margin: 0;
  color: #e8dcc7;
  font-size: 14px;
}

.venue-layout address {
  margin: 20px 0 0;
  color: var(--text);
  font-style: normal;
  font-weight: 800;
  line-height: 1.5;
}

.venue-layout address span {
  color: var(--muted-strong);
  font-weight: 600;
}

.venue-panel {
  padding: 28px;
}

.check-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding-left: 22px;
  color: var(--muted-strong);
  line-height: 1.55;
}

.check-list li::before {
  position: absolute;
  left: 0;
  top: 0.52em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--lime);
  content: "";
}

.timeline {
  display: grid;
  gap: 10px;
}

.timeline article {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 18px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.04);
}

.timeline time {
  color: var(--lime);
  font-size: 22px;
  font-weight: 900;
}

.timeline h3,
.timeline p {
  margin-bottom: 0;
}

.timeline p {
  margin-top: 6px;
}

.audience-grid {
  grid-template-columns: repeat(7, minmax(160px, 1fr));
  overflow-x: auto;
  padding-bottom: 8px;
  scroll-snap-type: x mandatory;
}

.audience-grid article {
  min-width: 176px;
  scroll-snap-align: start;
}

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

.idea-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
}

.filter-button {
  min-height: 38px;
  padding: 0 13px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--muted-strong);
  cursor: pointer;
  font-size: 13px;
  font-weight: 850;
  transition:
    border-color 0.18s ease,
    background 0.18s ease,
    color 0.18s ease;
}

.filter-button:hover,
.filter-button.is-active {
  border-color: rgba(156, 255, 74, 0.42);
  background: rgba(156, 255, 74, 0.09);
  color: #edffe5;
}

.idea-column {
  display: flex;
  flex-wrap: wrap;
  align-content: flex-start;
  gap: 8px;
}

.idea-column h3 {
  width: 100%;
}

.idea-column span {
  padding: 8px 10px;
  font-size: 13px;
}

.showcase-card {
  min-height: 170px;
}

.criteria-grid {
  grid-template-columns: repeat(6, minmax(0, 1fr));
}

.criteria-grid strong {
  display: block;
  margin-bottom: 16px;
  color: var(--lime);
  font-size: 32px;
  line-height: 1;
}

.privacy-callout {
  padding: 16px;
  border: 1px solid rgba(70, 231, 255, 0.3);
  border-radius: var(--radius);
  background: rgba(70, 231, 255, 0.08);
  color: #dff8ff;
}

.application-section {
  border-block: 1px solid rgba(70, 231, 255, 0.16);
  background:
    linear-gradient(135deg, rgba(70, 231, 255, 0.09), rgba(156, 255, 74, 0.055), transparent 58%),
    #080c0f;
}

.application-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.72fr) minmax(0, 1fr);
  gap: 40px;
  align-items: start;
}

.application-copy {
  position: sticky;
  top: 110px;
}

.application-points {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 24px 0;
}

.application-points span {
  padding: 9px 12px;
  border: 1px solid rgba(156, 255, 74, 0.24);
  border-radius: 999px;
  background: rgba(156, 255, 74, 0.07);
  color: #e7ffdc;
  font-size: 13px;
  font-weight: 800;
}

.application-form {
  display: grid;
  gap: 18px;
  padding: 24px;
  border: 1px solid rgba(70, 231, 255, 0.22);
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.05), transparent),
    rgba(8, 13, 16, 0.86);
  box-shadow: var(--shadow);
}

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

.application-form label,
.consent-box {
  display: grid;
  gap: 8px;
}

.application-form label > span,
.consent-box legend {
  color: var(--muted-strong);
  font-size: 13px;
  font-weight: 850;
}

.application-form input,
.application-form select,
.application-form textarea {
  width: 100%;
  min-height: 46px;
  border: 1px solid rgba(198, 208, 218, 0.18);
  border-radius: var(--radius);
  background: rgba(5, 8, 10, 0.82);
  color: var(--text);
  font: inherit;
  line-height: 1.35;
  padding: 12px 13px;
  transition:
    border-color 0.18s ease,
    box-shadow 0.18s ease,
    background 0.18s ease;
}

.application-form textarea {
  resize: vertical;
}

.application-form input:hover,
.application-form select:hover,
.application-form textarea:hover {
  border-color: rgba(70, 231, 255, 0.34);
}

.application-form input:focus,
.application-form select:focus,
.application-form textarea:focus {
  border-color: rgba(70, 231, 255, 0.74);
  background: rgba(5, 8, 10, 0.96);
  box-shadow: 0 0 0 4px rgba(70, 231, 255, 0.12);
  outline: 0;
}

.consent-box {
  margin: 0;
  padding: 16px;
  border: 1px solid rgba(156, 255, 74, 0.22);
  border-radius: var(--radius);
  background: rgba(156, 255, 74, 0.055);
}

.checkbox-line {
  grid-template-columns: auto 1fr;
  align-items: start;
}

.checkbox-line input {
  width: 18px;
  height: 18px;
  min-height: 18px;
  margin-top: 2px;
  accent-color: var(--lime);
}

.form-status {
  min-height: 24px;
  margin: -4px 0 0;
  color: #dff8ff;
  font-weight: 750;
}

.form-status.is-error {
  color: #ffd3dc;
}

.application-form button:disabled {
  cursor: wait;
  filter: grayscale(0.2);
  opacity: 0.78;
  transform: none;
}

.mentor-grid {
  grid-template-columns: repeat(6, minmax(0, 1fr));
}

.mentor-grid article {
  min-height: 132px;
}

.partner-grid {
  margin: 0;
}

.faq-list {
  display: grid;
  gap: 10px;
}

details {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.045);
}

summary {
  cursor: pointer;
  padding: 20px 22px;
  color: var(--text);
  font-weight: 850;
  list-style: none;
}

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

summary::after {
  float: right;
  color: var(--cyan);
  content: "+";
  font-size: 22px;
  line-height: 1;
}

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

details p {
  margin: 0;
  padding: 0 22px 22px;
}

.final-cta {
  position: relative;
  overflow: hidden;
  padding: 110px 0;
  border-top: 1px solid var(--line);
  text-align: center;
  background:
    linear-gradient(135deg, rgba(70, 231, 255, 0.16), rgba(156, 255, 74, 0.08), rgba(141, 92, 255, 0.12)),
    #080b0e;
}

.final-cta h2 {
  max-width: 860px;
  margin-inline: auto;
}

.final-cta p {
  max-width: 620px;
  margin-inline: auto;
  color: #dce8ef;
}

.site-footer {
  padding: 48px 0 92px;
  background: #050607;
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 40px;
}

.site-footer h2 {
  margin-bottom: 8px;
  font-size: 22px;
}

.site-footer nav {
  display: grid;
  gap: 12px;
  min-width: 160px;
  color: var(--muted-strong);
}

.mobile-sticky-cta {
  position: fixed;
  left: 12px;
  right: 12px;
  bottom: 12px;
  z-index: 60;
  display: none;
  grid-template-columns: 1fr auto;
  gap: 8px;
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(7, 9, 11, 0.84);
  backdrop-filter: blur(18px);
  opacity: 0;
  pointer-events: none;
  transform: translateY(120%);
  transition:
    opacity 0.18s ease,
    transform 0.18s ease;
}

.mobile-sticky-cta.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.site-toast {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 80;
  max-width: min(420px, calc(100vw - 32px));
  padding: 14px 16px;
  border: 1px solid rgba(70, 231, 255, 0.28);
  border-radius: var(--radius);
  background: rgba(7, 9, 11, 0.92);
  box-shadow: var(--shadow);
  color: #dff8ff;
  font-size: 14px;
  font-weight: 750;
  line-height: 1.45;
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
  transition:
    opacity 0.18s ease,
    transform 0.18s ease;
}

.site-toast.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1100px) {
  .site-header {
    grid-template-columns: auto 1fr;
  }

  .main-nav {
    display: none;
  }

  .nav-toggle {
    display: inline-grid;
  }

  .site-header.is-menu-open .mobile-nav {
    display: grid;
  }

  .header-actions {
    justify-self: end;
  }

  .hero-content {
    grid-template-columns: 1fr;
  }

  .hero-flow {
    max-width: 540px;
  }

  .countdown-grid,
  .two-column,
  .venue-layout,
  .partners-layout,
  .application-layout {
    grid-template-columns: 1fr;
  }

  .application-copy {
    position: static;
  }

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

  .criteria-grid,
  .mentor-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 820px) {
  :root {
    --shell: min(100vw - 28px, 720px);
  }

  body {
    padding-bottom: 78px;
  }

  .site-header {
    width: calc(100vw - 20px);
    margin-top: 8px;
  }

  .brand span:last-child {
    max-width: 180px;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .date-pill,
  .header-actions .button {
    display: none;
  }

  .hero {
    min-height: auto;
    margin-top: -58px;
    padding: 128px 0 54px;
  }

  .hero-overlay {
    background:
      linear-gradient(180deg, rgba(7, 9, 11, 0.9), rgba(7, 9, 11, 0.68) 48%, #07090b 100%);
  }

  .hero h1 {
    font-size: clamp(34px, 9.4vw, 42px);
    line-height: 1.02;
    overflow-wrap: break-word;
  }

  .hero h1 span,
  .hero-kicker span {
    display: block;
  }

  .hero-kicker {
    font-size: clamp(27px, 7.1vw, 32px);
    line-height: 1.08;
  }

  .hero-lede,
  .rich-text p {
    font-size: 16px;
  }

  .hero-buttons {
    flex-direction: column;
  }

  .hero-buttons .button {
    width: 100%;
  }

  .chip-cloud {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .chip-cloud span {
    text-align: center;
  }

  .countdown-grid {
    gap: 16px;
    text-align: left;
  }

  .countdown {
    grid-template-columns: repeat(4, 1fr);
    width: 100%;
  }

  .countdown div {
    min-width: 0;
    padding: 10px 6px;
  }

  .countdown strong {
    font-size: 24px;
  }

  .section {
    padding: 68px 0;
  }

  h2 {
    font-size: clamp(32px, 10vw, 48px);
  }

  .card-grid.three,
  .card-grid.four,
  .mode-grid,
  .prize-grid,
  .audience-grid,
  .idea-board,
  .criteria-grid,
  .mentor-grid {
    grid-template-columns: 1fr;
  }

  .audience-grid {
    overflow-x: visible;
    scroll-snap-type: none;
  }

  .audience-grid article {
    min-width: 0;
  }

  .timeline article {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .form-grid {
    grid-template-columns: 1fr;
  }

  .application-form {
    padding: 18px;
  }

  .mobile-sticky-cta {
    display: grid;
  }

  .site-toast {
    bottom: 88px;
  }
}

@media (max-width: 480px) {
  .button {
    width: 100%;
  }

  .button-ghost {
    width: auto;
  }

  .countdown {
    grid-template-columns: repeat(2, 1fr);
  }

  .chip-cloud {
    grid-template-columns: 1fr;
  }

  .hero-flow {
    padding: 16px;
  }

  .mobile-nav {
    grid-template-columns: 1fr;
  }

  .idea-filters {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  summary {
    padding-right: 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}