:root {
  --uc-red: #d6001c;
  --uc-red-dark: #9f0015;
  --uc-gold: #ffcd00;
  --uc-gold-soft: #fff3bf;
  --ink: #171717;
  --muted: #5f5f5f;
  --line: #e6e1d8;
  --bg: #faf8f2;
  --card: #ffffff;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: Arial, Helvetica, sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at top right,
    rgba(255, 205, 0, 0.18),
    transparent 32%),
    linear-gradient(
      180deg,
      #fffdf7 0%,
      var(--bg) 100%
    );
  line-height: 1.6;
}

.site-header {
  width: min(1180px, 92%);
  margin: 20px auto 0;
  padding: 16px 20px;
  background: #9f0015;
  color: #ffffff;
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  position: sticky;
  top: 16px;
  z-index: 100;
  box-shadow: 0 14px 32px rgba(0,0,0,0.18);
  border-bottom: 4px solid var(--uc-gold);
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
}

.logo-mark {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--uc-red);
  color: #ffffff;
  display: grid;
  place-items: center;
  font-size: 0.9rem;
  border: 2px solid var(--uc-gold);
}

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

.logo a:hover {
  text-decoration: none;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0;
}

.nav-links > * {
  position: relative;
  padding: 0 14px;
}

.nav-links > *:not(:last-child)::after {
  content: "|";
  position: absolute;
  right: -2px;
  color: var(--uc-gold);
}

.nav-links a {
  color: #ffffff;
  text-decoration: none;
  font-size: 0.92rem;
  opacity: 0.9;
}

.nav-links a:hover {
  opacity: 1;
  color: var(--uc-gold);
}








/* HEADER ACTIONS */
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}







/* LANGUAGE SWITCH */
.language-switch {
  display: flex;
  gap: 6px;
  padding: 4px;
  background: rgba(255,255,255,0.12);
  border-radius: 10px;
}

.language-switch button {
  border: none;
  padding: 8px 10px;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 800;
  background: transparent;
  color: #ffffff;
  transition: 0.2s ease;
}

.language-switch button:hover {
  background: rgba(255,255,255,0.15);
}

.language-switch button.active {
  background: var(--uc-gold);
  color: #111111;
}

/* BUTTONS */
.nav-button,
.primary-button,
.secondary-button {
  display: inline-block;
  text-decoration: none;
  border-radius: 10px;
  font-weight: 800;
  transition: 0.2s ease;
}

.nav-button {
  background: var(--uc-red);
  color: #ffffff;
  padding: 10px 16px;
  font-size: 0.9rem;
}

.nav-button:hover,
.primary-button:hover {
  background: var(--uc-red-dark);
  transform: translateY(-2px);
}











/* MAIN */
main {
  width: min(1180px, 92%);
  margin: 0 auto;
}



/* HERO */
.hero {
  min-height: 580px;
  margin: 24px 0;
  padding: 70px 64px;
  background:
    radial-gradient(
      circle at 82% 24%,
      rgba(255,205,0,0.32),
      transparent 28%
    ),
    linear-gradient(
      135deg,
      #ffffff 0%,
      #fff8dd 52%,
      #fff3f0 100%
    );
  border: 1px solid var(--line);
  border-radius: 24px;
  display: block;
  overflow: hidden;
  position: relative;
}

.hero::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 12px;
  height: 100%;
  background:
    linear-gradient(
      180deg,
      var(--uc-red),
      var(--uc-gold)
    );
}

.eyebrow,
.section-label {
  color: var(--uc-red-dark);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 1.1rem;
  margin-bottom: 10px;
}

.hero-title,
.hero h1 {
  font-size: clamp(2.2rem, 4vw, 3.8rem);
  line-height: 1.05;
  margin-bottom: 28px;
  color: var(--ink);
}

.hero-two-column {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 56px;
  align-items: start;
}

.hero-text h2 {
  font-size: clamp(1.4rem, 3vw, 2rem);
  margin-bottom: 20px;
  color: var(--uc-red-dark);
}

.hero-text p {
  max-width: 620px;
  color: var(--muted);
  margin-bottom: 28px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.hero-image-strip {
  margin-top: 40px;
  margin-left: -64px;
  margin-right: -64px;
  margin-bottom: -70px;
  overflow: hidden;
  border-radius: 0 0 24px 24px;
}

.hero-image-strip img {
  display: block;
  width: 100%;
  height: 240px;
  object-fit: cover;
}

.primary-button {
  background: var(--uc-red);
  color: #ffffff;
  padding: 13px 22px;
  box-shadow: 0 8px 18px rgba(214,0,28,0.22);
}

.secondary-button {
  border: 1px solid #d9c471;
  color: var(--ink);
  background: #ffffff;
  padding: 12px 22px;
}

.secondary-button:hover {
  background: var(--uc-gold-soft);
  transform: translateY(-2px);
}




/* HERO EVENT INFO CARD */
.hero-info-card {
  background: rgba(255,255,255,0.88);
  border: 1px solid #eadfc0;
  border-radius: 24px;
  padding: 32px;
  box-shadow: 0 20px 40px rgba(0,0,0,0.08);
  width: 100%;
}

.hero-info-card h3 {
  color: var(--uc-red);
  margin-bottom: 24px;
  font-size: 1.5rem;
  font-weight: 800;
}

.info-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 18px;
}

.info-item span {
  font-size: 1.3rem;
  min-width: 28px;
}

.info-item strong {
  display: block;
  font-weight: 800;
  color: var(--ink);
  margin-bottom: 4px;
}

.info-item p {
  margin: 0;
  color: var(--ink);
  font-size: 0.95rem;
  line-height: 1.5;
}

.visual-icon {
  width: 130px;
  height: 130px;
  border-radius: 28px;
  background:
    linear-gradient(
      135deg,
      var(--uc-red),
      var(--uc-gold)
    );
  color: #ffffff;
  font-size: 2.4rem;
  font-weight: 900;
  display: grid;
  place-items: center;
  box-shadow: 0 18px 34px rgba(214,0,28,0.25);
}

.info-item a {
  color: var(--uc-red);
  font-weight: 600;
  text-decoration: none;
}

.info-item a:hover {
  text-decoration: underline;
}











/* SECTIONS */
.section {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 46px;
  margin-bottom: 24px;
  box-shadow: 0 8px 30px rgba(0,0,0,0.055);
}

.section-header {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-bottom: 16px;
}

.about-label {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--uc-red);
  margin: 0;
  text-transform: none;
  letter-spacing: normal;
}

.section h2 {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  line-height: 1.2;
  margin-bottom: 16px;
}

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

.split-section {
  display: grid;
  grid-template-columns: 90px 1fr;
  align-items: center;
  gap: 28px;
}

.section-icon {
  width: 80px;
  height: 80px;
  border-radius: 20px;
  display: grid;
  place-items: center;
  font-size: 2rem;
  background: var(--uc-gold-soft);
  border: 1px solid #ead174;
}






/* ABOUT GRID */
.about-intro {
  font-size: 1.05rem;
  line-height: 1.8;
  color: #ffffff;
  margin-bottom: 36px;
}

.about-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
  margin-top: 28px;
}

.about-card {
  background: #fffdf7;
  border: 1px solid var(--line);
  border-left: 5px solid var(--uc-gold);
  border-radius: 18px;
  padding: 24px;
  transition: 0.2s ease;
}

.about-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 28px rgba(214, 0, 28, 0.1);
  border-left-color: var(--uc-red);
}

.about-card h3 {
  color: var(--uc-red);
  margin-bottom: 14px;
  font-size: 1.25rem;
}

.about-card ul {
  padding-left: 20px;
}

.about-card li {
  margin-bottom: 10px;
  color: var(--muted);
}

.registration-card {
  grid-column: span 2;
  background: linear-gradient(180deg, #ffffff 0%, #fff9df 100%);
}

.registration-coming {
  color: var(--uc-red);
  font-weight: 700;
}

.coming-soon-banner {
  margin-top: 40px;
  text-align: center;
  font-size: 2rem;
  font-weight: 800;
  color: var(--uc-red);
  letter-spacing: 0.02em;
}










/* CARDS */
.cards {
  margin-top: 28px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.card,
.speaker-card {
  padding: 28px 22px;
  border: 1px solid var(--line);
  border-radius: 18px;
  text-align: center;
  background: #fffdf7;
  transition: 0.2s ease;
  border-top: 5px solid var(--uc-gold);
}

.card:hover,
.speaker-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 30px rgba(214,0,28,0.12);
  border-top-color: var(--uc-red);
}

.card-icon {
  font-size: 2rem;
  margin-bottom: 12px;
}

.card h3,
.speaker-card h3 {
  margin-bottom: 8px;
  color: var(--ink);
}









/* SCHEDULE */
.schedule-list {
  margin-top: 26px;
  display: grid;
  gap: 14px;
}

.schedule-item {
  padding: 20px;
  background: #fffdf7;
  border: 1px solid var(--line);
  border-left: 6px solid var(--uc-red);
  border-radius: 16px;
  display: grid;
  grid-template-columns: 90px 1fr auto;
  gap: 16px;
  align-items: center;
}

.schedule-item span {
  color: var(--uc-red);
  font-weight: 900;
}









/* SPEAKERS */
.speaker-grid {
  margin-top: 28px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.avatar {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background:
    linear-gradient(
      135deg,
      var(--uc-red),
      var(--uc-gold)
    );
  color: #ffffff;
  font-weight: 900;
  display: grid;
  place-items: center;
  margin: 0 auto 16px;
  border: 3px solid #ffffff;
  box-shadow: 0 8px 18px rgba(214,0,28,0.22);
}













/* CALLOUT */
.callout {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 30px;
  background:
    radial-gradient(circle at 88% 50%,
    rgba(255,205,0,0.32),
    transparent 24%),
    linear-gradient(
      135deg,
      #111111,
      var(--uc-red-dark)
    );
  color: #ffffff;
  border-bottom: 6px solid var(--uc-gold);
}

.callout .section-label {
  color: var(--uc-gold);
}

.callout p,
.callout h2 {
  color: #ffffff;
}

.callout p {
  max-width: 720px;
}

.light-button {
  background: var(--uc-gold);
  color: #111111;
  box-shadow: none;
}

.light-button:hover {
  background: #e4b800;
  color: #111111;
}













/* REGISTER */
.register-section {
  text-align: center;
  background:
    linear-gradient(
      180deg,
      #ffffff 0%,
      #fff9df 100%
    );
}

.register-section p {
  max-width: 700px;
  margin: 0 auto 24px;
}









/* FOOTER */
.site-footer {
  width: min(1180px, 92%);
  margin: 24px auto 40px;
  padding: 28px;
  text-align: center;
  color: #111111;
  background: #fff3bf;
  border-radius: 18px;
  border-top: 5px solid var(--uc-red);
}






/* Navigation Panel */
.nav-item-with-panel {
  position: relative;
  display: inline-block;
}

.nav-item-with-panel > a {
  color: #ffffff;
  text-decoration: none;
  font-size: 0.92rem;
  opacity: 0.9;
}

.previous-events-panel {
  display: none;
  position: absolute;
  top: 28px;
  left: 0;
  min-width: 170px;
  background: #ffffff;
  border-radius: 10px;
  padding: 6px;
  box-shadow: 0 10px 24px rgba(0,0,0,0.18);
  z-index: 9999;
}

.previous-events-panel.show {
  display: block;
}

.previous-events-panel a {
  display: block;
  color: #111111 !important;
  padding: 9px 10px;
  border-radius: 7px;
  text-decoration: none;
  font-size: 0.9rem;
  opacity: 1;
  white-space: nowrap;
}

.previous-events-panel a:hover {
  background: #fff3bf;
  color: #d6001c !important;
}





/* ORGANIZERS */
.organizer-grid {
  margin-top: 32px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.organizer-card {
  background: #fffdf7;
  border: 1px solid var(--line);
  border-top: 5px solid var(--uc-gold);
  border-radius: 20px;
  padding: 28px 22px;
  text-align: center;
  transition: 0.2s ease;
}

.organizer-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 30px rgba(214, 0, 28, 0.12);
  border-top-color: var(--uc-red);
}

.organizer-photo {
  width: 180px;
  height: 180px;
  object-fit: cover;
  border-radius: 50%;
  margin-bottom: 20px;
  border: 5px solid #ffffff;
  box-shadow: 0 10px 24px rgba(0,0,0,0.18);
}

.organizer-card h3 {
  font-size: 1.15rem;
  color: var(--ink);
  margin-bottom: 8px;
}

.organizer-role {
  font-weight: 700;
  color: var(--uc-red);
  margin-bottom: 4px;
}

.organizer-university {
  color: var(--muted);
  font-size: 0.95rem;
}









/* SUPPORTED BY */
.supported-section {
  text-align: center;
}

.supported-section h2 {
  margin-bottom: 40px;
}

.supporter-logo-grid {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: nowrap;
  gap: 30px;
  margin-top: 20px;
}

.supporter-logo {
  max-height: 90px;
  max-width: 220px;
  width: auto;
  object-fit: contain;
  transition: 0.25s ease;
}

.supporter-logo:hover {
  transform: scale(1.05);
}











/* RESPONSIVE */
@media (max-width: 900px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .nav-links {
    flex-wrap: wrap;
    gap: 12px 18px;
  }

  .header-actions {
    flex-wrap: wrap;
  }

  .hero {
    padding: 48px 28px;
  }

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

  .hero-title,
  .hero h1 {
    white-space: normal;
  }

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

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

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

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

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

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

  .registration-card {
  grid-column: span 1;
  }
}

@media (max-width: 560px) {
  .site-header,
  main,
  .site-footer {
    width: 94%;
  }

  .section {
    padding: 30px 22px;
  }

  .split-section {
    grid-template-columns: 1fr;
  }

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

  .hero-title,
  .hero h1 {
    font-size: 2.6rem;
  }

  .visual-icon {
    width: 100px;
    height: 100px;
    font-size: 1.8rem;
  }

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