/* SemiXthon page-only styles */
:root {
  --midnight: #070917;
  --accent-blue: #3b82f6;
  --slate-light: #f8fafc;
  --text-main: #070917;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background-color: #fff;
  color: var(--text-main);
  font-family: 'Plus Jakarta Sans', sans-serif;
}

nav {
  background: var(--midnight);
  color: #fff;
  box-shadow: 0 4px 20px rgba(7, 9, 23, 0.1);
}

.section-title {
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--midnight);
  text-transform: uppercase;
  letter-spacing: -1px;
}

.timer-box {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 1rem;
  border-radius: 12px;
  min-width: 80px;
}

.reveal { opacity: 0; transform: translateY(20px); transition: 0.6s ease-out; }
.reveal.active { opacity: 1; transform: translateY(0); }

/* ── Nav logo ── */
.nav-logo-img {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  object-fit: contain;
  border: 1px solid rgba(255,255,255,0.1);
  padding: 3px;
}
.nav-logo-text {
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #fff;
}

/* ── Nav Devfolio badge ── */
.devfolio-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 5px 12px 5px 9px;
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 6px;
  transition: background 0.2s;
  text-decoration: none;
}
.devfolio-badge:hover { background: rgba(255,255,255,0.13); }
.devfolio-badge img {
  height: 17px;
  width: auto;
  filter: brightness(0) invert(1);
}
.devfolio-badge span {
  font-size: 0.8rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.04em;
}

/* ── Hero buttons ── */
.sx-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 48px;
  padding: 0 1.75rem;
  border-radius: 10px;
  font-weight: 800;
  font-size: 0.9rem;
  text-decoration: none;
  white-space: nowrap;
  transition: all 0.2s ease;
}
.sx-btn-primary {
  background: rgba(255,255,255,0.08);
  color: #fff;
  border: 1px solid rgba(255,255,255,0.2);
}
.sx-btn-primary:hover {
  background: rgba(255,255,255,0.15);
  border-color: rgba(255,255,255,0.32);
  transform: translateY(-1px);
}
.sx-btn-devfolio {
  background: var(--accent-blue);
  color: #fff;
}
.sx-btn-devfolio:hover {
  background: #2563eb;
  box-shadow: 0 4px 20px rgba(59,130,246,0.45);
  transform: translateY(-1px);
}

/* ════════════════════════════
   ABOUT SECTION
════════════════════════════ */
.about-badge {
  display: inline-block;
  font-size: 0.63rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent-blue);
  background: rgba(59,130,246,0.08);
  border: 1px solid rgba(59,130,246,0.2);
  padding: 5px 14px;
  border-radius: 100px;
  margin-bottom: 1.25rem;
}

.about-lead {
  font-size: 1.05rem;
  line-height: 1.85;
  color: #4b5563;
}

.about-stat-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: #e2e8f0;
  border: 1px solid #e2e8f0;
  border-radius: 14px;
  overflow: hidden;
  margin-top: 2rem;
}
.about-stat {
  background: #fff;
  padding: 1.3rem 1rem;
  text-align: center;
}
.about-stat .val {
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--midnight);
  letter-spacing: -0.03em;
}
.about-stat .key {
  font-size: 0.63rem;
  font-weight: 700;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: #94a3b8;
  margin-top: 0.2rem;
}

/* Location card */
.location-card {
  background: #1e3a5f;
  border-radius: 20px;
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.location-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 24px 50px rgba(30,58,95,0.28);
}
.location-card > a {
  display: block;
  text-decoration: none;
  color: inherit;
}
.location-map-visual {
  width: 100%;
  height: 150px;
  background:
    linear-gradient(rgba(30,58,95,0.55), rgba(30,58,95,0.55)),
    repeating-linear-gradient(0deg, transparent, transparent 29px, rgba(59,130,246,0.12) 30px),
    repeating-linear-gradient(90deg, transparent, transparent 29px, rgba(59,130,246,0.12) 30px);
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.location-pin-wrap {
  width: 52px;
  height: 52px;
  background: rgba(59,130,246,0.2);
  border: 1.5px solid rgba(59,130,246,0.45);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}
.location-card-body { padding: 1.5rem 1.75rem; }
.location-card-tag {
  font-size: 0.61rem;
  font-weight: 800;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: #93c5fd;
  margin-bottom: 0.55rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.location-card-tag::before {
  content: '';
  display: inline-block;
  width: 5px; height: 5px;
  border-radius: 50%;
  background: #93c5fd;
  animation: blink 1.8s ease-in-out infinite;
}
@keyframes blink {
  0%,100% { opacity:1; }
  50% { opacity:0.3; }
}
.location-card-title {
  font-size: 1.25rem;
  font-weight: 900;
  color: #fff;
  letter-spacing: -0.02em;
  margin-bottom: 0.3rem;
}
.location-card-sub {
  font-size: 0.83rem;
  color: rgba(255,255,255,0.5);
}
.location-open-hint {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.77rem;
  font-weight: 700;
  color: #93c5fd;
  letter-spacing: 0.04em;
  padding: 0.85rem 1.75rem;
  border-top: 1px solid rgba(255,255,255,0.08);
  transition: gap 0.2s;
}
.location-card:hover .location-open-hint { gap: 0.7rem; }


/* ════════════════════════════
   TRACKS SECTION
════════════════════════════ */
.track-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: #e2e8f0;
  border: 1px solid #e2e8f0;
  border-radius: 20px;
  overflow: hidden;
}
.track-card {
  background: #fff;
  padding: 2rem 1.75rem;
  position: relative;
  transition: background 0.25s;
}
.track-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 1.75rem; right: 1.75rem;
  height: 2px;
  background: var(--accent-blue);
  transform: scaleX(0);
  transition: transform 0.3s ease;
  transform-origin: left;
}
.track-card:hover { background: #f8faff; }
.track-card:hover::after { transform: scaleX(1); }

.track-num {
  font-size: 0.62rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent-blue);
  margin-bottom: 0.7rem;
  opacity: 0.75;
}
/* Replaces emoji icons */
.track-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: rgba(59,130,246,0.1);
  border: 1px solid rgba(59,130,246,0.2);
  margin-bottom: 1rem;
  font-size: 0.72rem;
  font-weight: 900;
  color: var(--accent-blue);
}
.track-card h3 {
  font-size: 0.97rem;
  font-weight: 800;
  color: var(--midnight);
  line-height: 1.35;
  margin-bottom: 0.6rem;
}
.track-card p {
  font-size: 0.82rem;
  color: #64748b;
  line-height: 1.7;
}


/* ════════════════════════════
   SCHEDULE SECTION
════════════════════════════ */
.schedule-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.schedule-card {
  border: 1px solid #e2e8f0;
  border-radius: 18px;
  overflow: hidden;
  transition: box-shadow 0.3s, transform 0.3s;
}
.schedule-card:hover {
  box-shadow: 0 20px 40px rgba(7,9,23,0.08);
  transform: translateY(-4px);
}
.schedule-card-header {
  padding: 1.4rem 1.75rem 1.2rem;
  border-bottom: 1px solid #f1f5f9;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
}
.schedule-round-badge {
  font-size: 0.6rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: #fff;
  background: var(--midnight);
  padding: 4px 10px;
  border-radius: 100px;
}
.schedule-round-num {
  font-size: 2.4rem;
  font-weight: 900;
  color: rgba(59,130,246,0.18);
  line-height: 1;
}
.schedule-card-body { padding: 1.75rem 1.75rem 2rem; }
.schedule-card-body h3 {
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--midnight);
  margin-bottom: 0.4rem;
}
.schedule-card-body p {
  font-size: 0.82rem;
  color: #64748b;
  line-height: 1.7;
  margin-bottom: 1rem;
}
.schedule-meta { display: flex; flex-direction: column; gap: 0.35rem; }
.schedule-meta-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.79rem;
  color: #475569;
}
.schedule-meta-row strong { color: var(--midnight); font-weight: 700; }
.schedule-meta-row .dot {
  width: 4px; height: 4px;
  border-radius: 50%;
  background: var(--accent-blue);
  flex-shrink: 0;
}


/* ── Prizes (original semicon-card kept for prize grid) ── */
.semicon-card {
  background: #fff;
  border: 1px solid #e2e8f0;
  border-radius: 16px;
  transition: all 0.3s ease;
}
.semicon-card:hover {
  border-color: var(--midnight);
  box-shadow: 0 10px 30px rgba(7, 9, 23, 0.08);
  transform: translateY(-4px);
}

.sx-list { margin-top: 0.75rem; color: #475569; }
.sx-list li { margin: 0.4rem 0; }

/* Responsive */
@media (max-width: 768px) {
  .track-grid { grid-template-columns: 1fr 1fr; }
  .schedule-grid { grid-template-columns: 1fr; }
  .about-stat-strip { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .track-grid { grid-template-columns: 1fr; }
}