:root {
  --ink: #1a1623;
  --muted: #6a6276;
  --line: #d8cdb6;
  --paper: #f7f2e9;
  --paper-2: #efe7d6;
  --white: #fffdf8;
  --red: #e3392f;
  --red-deep: #b32419;
  --indigo: #2a2a4a;
  --gold: #d9a441;
  --hero-height: min(56vh, 460px);
  --max: 920px;
  --font-display: "Zen Dots", "DM Sans", sans-serif;
  --font-mark: "Shippori Mincho", "Times New Roman", serif;
  --font-body: "Zen Maru Gothic", "Helvetica Neue", sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  color: var(--ink);
  background-color: var(--paper);
  background-image: radial-gradient(circle at 1px 1px, rgba(26, 22, 35, 0.06) 1px, transparent 0);
  background-size: 22px 22px;
  line-height: 1.65;
  font-size: 18px;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--red-deep);
  text-decoration: none;
  font-weight: 700;
  transition: color 0.2s ease;
}
a:hover { color: var(--red); }

.sun {
  position: absolute;
  top: -160px;
  left: 50%;
  transform: translateX(-50%);
  width: 480px;
  height: 480px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--red) 0%, var(--red) 58%, var(--red-deep) 100%);
  opacity: 0.12;
  z-index: 0;
  pointer-events: none;
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: var(--hero-height);
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  color: #fff;
  background: var(--indigo);
}

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

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 42%;
  filter: saturate(1.08) contrast(1.06);
  transform: scale(1.02);
}

.hero-shade {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(18, 12, 22, 0.35) 0%, rgba(18, 12, 22, 0.55) 38%, rgba(18, 12, 22, 0.94) 100%),
    linear-gradient(90deg, rgba(227, 57, 47, 0.28), transparent 58%);
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  width: min(var(--max), calc(100% - 2.4rem));
  margin: 0 auto;
  padding: 3.2rem 0 2.3rem;
  animation: rise 0.8s ease both;
}

.kana {
  font-family: var(--font-mark);
  letter-spacing: 0.42em;
  color: #ffd4c8;
  font-size: 0.92rem;
  margin-bottom: 0.7rem;
}

.hero-kicker {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--paper);
  margin-bottom: 0.95rem;
  font-weight: 400;
  padding: 0.4rem 0.8rem;
  border-radius: 2px;
  background: var(--indigo);
  border: 1px solid rgba(255, 255, 255, 0.28);
}

.hero h1 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(3rem, 8vw, 4.6rem);
  line-height: 0.95;
  letter-spacing: 0.02em;
  margin-bottom: 0.4rem;
  color: #fffaf4;
  text-shadow:
    0 2px 4px rgba(0, 0, 0, 0.9),
    0 10px 32px rgba(0, 0, 0, 0.55);
}

.hero-edition {
  font-family: var(--font-mark);
  font-style: italic;
  font-weight: 500;
  font-size: clamp(1.2rem, 2.6vw, 1.55rem);
  color: #f3d7c8;
  margin-bottom: 1.15rem;
}

.hero-meta {
  font-size: 1.02rem;
  color: rgba(255, 255, 255, 0.92);
  max-width: none;
}

.hero-meta .whenwhere {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 0.65rem;
  align-items: center;
  margin: 0 0 0.8rem;
}

.hero-meta .chip {
  display: inline-block;
  padding: 0.38rem 0.85rem;
  border-radius: 2px;
  background: rgba(227, 57, 47, 0.78);
  border: 1px solid rgba(255, 210, 190, 0.45);
  color: #fff;
  font-weight: 700;
  font-size: 0.98rem;
  box-shadow: 4px 4px 0 rgba(26, 22, 35, 0.35);
}

.hero-meta .tagline {
  color: #fff;
  font-size: 1.12rem;
  line-height: 1.5;
  max-width: 52rem;
  text-shadow: 0 1px 10px rgba(0, 0, 0, 0.75);
}

/* ---------- Layout ---------- */
main { padding-bottom: 1.5rem; position: relative; z-index: 1; }

.container {
  width: min(var(--max), calc(100% - 2.4rem));
  margin: 0 auto;
  padding: 2.5rem 0 0.4rem;
}

.container h2 {
  font-family: var(--font-body);
  font-size: 1.7rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 1rem;
  color: var(--ink);
  border-bottom: 2px solid var(--line);
  padding-bottom: 0.55rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.mark {
  font-family: var(--font-mark);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--paper);
  background: var(--red);
  padding: 0.28rem 0.55rem;
  border-radius: 3px;
  line-height: 1;
}

.lead {
  font-size: 1.08rem;
  color: var(--ink);
}

.lead b, .lead strong { font-weight: 700; }

.muted { color: var(--muted); }

.series {
  margin-top: 1.3rem;
  padding: 1rem 1.15rem;
  background: var(--paper-2);
  border-left: 5px solid var(--red);
  border-radius: 0 4px 4px 0;
}

.series p { margin: 0; font-size: 1rem; color: #3a3348; }

/* ---------- Topics / CFP ---------- */
.topic-grid {
  list-style: none;
  margin: 1rem 0 1.35rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.55rem 1.4rem;
}

.topic-grid li {
  position: relative;
  padding-left: 1.05rem;
  color: #2e2838;
  font-size: 1rem;
  line-height: 1.45;
}

.topic-grid li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 0.42rem;
  height: 0.42rem;
  border-radius: 1px;
  background: var(--red);
  transform: translateY(-50%) rotate(45deg);
}

.cfp-format {
  margin: 0.2rem 0 1.1rem;
  padding: 0.95rem 1.05rem;
  background: var(--white);
  border: 2px solid var(--ink);
  border-left: 5px solid var(--red);
  font-size: 1rem;
  box-shadow: 5px 5px 0 rgba(26, 22, 35, 0.08);
}

.dates {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0 0.5rem;
  font-size: 1rem;
}

.dates th,
.dates td {
  text-align: left;
  padding: 0.72rem 0.4rem;
  border-bottom: 1px solid var(--line);
}

.dates th {
  width: 42%;
  color: var(--muted);
  font-weight: 500;
}

.dates td { font-weight: 700; color: var(--ink); }

.note {
  margin-top: 0.9rem;
  font-size: 0.98rem;
  color: var(--muted);
}

/* ---------- Challenge ---------- */
.challenge-grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 1.4rem;
  align-items: center;
  margin-top: 0.4rem;
}

.challenge-grid img {
  width: 100%;
  border: 3px solid var(--ink);
  border-radius: 4px;
  box-shadow: 7px 7px 0 rgba(26, 22, 35, 0.12);
}

.prizes {
  font-weight: 700;
  color: var(--red-deep);
  margin-top: 0.7rem;
}

.teaser {
  margin-top: 1.4rem;
  width: 100%;
  border: 3px solid var(--ink);
  border-radius: 4px;
  box-shadow: 8px 8px 0 rgba(26, 22, 35, 0.12);
}

.caption {
  font-family: var(--font-mark);
  font-size: 0.92rem;
  color: var(--muted);
  text-align: center;
  margin-top: 0.85rem;
  font-style: italic;
}

/* ---------- Schedule ---------- */
.schedule {
  width: 100%;
  border-collapse: collapse;
  margin-top: 0.6rem;
}

.schedule td {
  padding: 0.78rem 0.35rem;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

.schedule td:first-child {
  width: 9.6rem;
  font-variant-numeric: tabular-nums;
  color: var(--red);
  font-weight: 700;
  white-space: nowrap;
}

.schedule .break td {
  color: var(--muted);
  font-style: italic;
  font-weight: 500;
}

.schedule .break td:first-child { font-style: normal; }

/* ---------- Team ---------- */
.team-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(160px, 200px));
  justify-content: start;
  gap: 1.6rem 1.6rem;
  margin-top: 1.4rem;
}

.person { text-align: center; }

.person a { color: inherit; font-weight: inherit; }

.person-photo {
  position: relative;
  display: block;
  aspect-ratio: 1;
  overflow: hidden;
  border-radius: 4px;
  background: #dde3ea;
  border: 3px solid var(--ink);
  box-shadow: 5px 5px 0 rgba(26, 22, 35, 0.12);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.person-photo img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 22%;
  border: 0;
  box-shadow: none;
  border-radius: 0;
}

.person-photo .photo-real {
  opacity: 0;
  transition: opacity 0.25s ease;
}

.person a:hover .person-photo,
.person-photo:hover {
  transform: translate(2px, 2px);
  box-shadow: 3px 3px 0 rgba(26, 22, 35, 0.16);
}

.person a:hover .photo-real,
.person-photo:hover .photo-real {
  opacity: 1;
}

.person h3 {
  margin-top: 0.7rem;
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.25;
  color: var(--ink);
}

.person p {
  margin-top: 0.2rem;
  font-size: 0.92rem;
  color: var(--muted);
  line-height: 1.35;
}

.contact {
  margin-top: 1.7rem;
  padding-top: 1rem;
  border-top: 2px solid var(--line);
  font-size: 1rem;
  color: var(--muted);
}

/* ---------- Footer ---------- */
.site-footer {
  margin-top: 2.4rem;
  padding: 2rem 0 2.5rem;
  background: var(--indigo);
  text-align: center;
  position: relative;
  z-index: 1;
}

.site-footer .container { padding-top: 0; }

.wacv-logo {
  height: 58px;
  width: auto;
  margin: 0 auto 1rem;
}

.site-footer p {
  font-size: 0.95rem;
  color: #c9c3d6;
}

.site-footer a { color: #ffd4c8; }
.site-footer a:hover { color: #fff; }

@keyframes rise {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 700px) {
  body { font-size: 17px; }
  .hero-content { padding: 2.4rem 0 1.8rem; }
  .hero h1 { font-size: clamp(2.3rem, 12vw, 3.2rem); }
  .topic-grid,
  .challenge-grid { grid-template-columns: 1fr; }
  .team-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.2rem 0.9rem;
  }
  .schedule td:first-child { width: 7.2rem; font-size: 0.92rem; }
  .dates th { width: 48%; }
}

@media (prefers-reduced-motion: reduce) {
  .hero-content { animation: none; }
  .person-photo { transition: none; }
  .person-photo .photo-real { transition: none; }
}