/* Index/Home page specific styles */

:root {
  --hero-grid: rgba(99, 102, 241, 0.06);
  --hero-glow1: rgba(99, 102, 241, 0.08);
  --hero-glow2: rgba(168, 85, 247, 0.06);
  --hero-glow3: rgba(251, 191, 36, 0.05);
  --nav-bg: rgba(245, 245, 248, 0.85);
  --group-letter-bg: rgba(99, 102, 241, 0.08);
  --team-row-bg: #f5f5fa;
  --gradient-text-from: #1a1a2e;
  --gold-tag: #92400e;
}

[data-theme="dark"] {
  --hero-grid: rgba(99, 102, 241, 0.03);
  --hero-glow1: rgba(99, 102, 241, 0.15);
  --hero-glow2: rgba(168, 85, 247, 0.1);
  --hero-glow3: rgba(251, 191, 36, 0.08);
  --nav-bg: rgba(10, 10, 15, 0.85);
  --group-letter-bg: rgba(129, 140, 248, 0.12);
  --team-row-bg: #1a1a26;
  --gradient-text-from: #ffffff;
  --gold-tag: #fbbf24;
}

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2rem;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% 0%, var(--hero-glow1), transparent),
    radial-gradient(ellipse 60% 50% at 20% 80%, var(--hero-glow2), transparent),
    radial-gradient(ellipse 60% 50% at 80% 80%, var(--hero-glow3), transparent);
  transition: background 0.4s;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--hero-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--hero-grid) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 70% 70% at 50% 50%, black, transparent);
}

.hero-badge {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--badge-bg);
  border: 1px solid var(--badge-border);
  border-radius: 100px;
  padding: 6px 18px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--accent);
  margin-bottom: 2rem;
  letter-spacing: 0.05em;
}

.hero-badge .dot {
  width: 6px;
  height: 6px;
  background: var(--green);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.hero h1 {
  position: relative;
  font-size: clamp(3rem, 8vw, 7rem);
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.03em;
  margin-bottom: 0.5rem;
}

.hero h1 .gradient {
  background: linear-gradient(135deg, var(--gradient-text-from) 0%, #6366f1 50%, #a855f7 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero h1 .year {
  display: block;
  font-size: clamp(1.5rem, 4vw, 3rem);
  font-weight: 300;
  letter-spacing: 0.3em;
  background: linear-gradient(90deg, var(--gold), #ea580c);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-top: 0.5rem;
}

.hero-sub {
  position: relative;
  font-size: clamp(1rem, 2vw, 1.3rem);
  color: var(--text-dim);
  font-weight: 300;
  margin-top: 1.5rem;
  max-width: 520px;
}

.hero-flags {
  position: relative;
  display: flex;
  gap: 1.5rem;
  margin-top: 2.5rem;
  font-size: 2.5rem;
}

.hero-stats {
  position: relative;
  display: flex;
  gap: 3rem;
  margin-top: 3rem;
  flex-wrap: wrap;
  justify-content: center;
}

.hero-stat {
  text-align: center;
}

.hero-stat .num {
  font-size: 2rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--gradient-text-from), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-stat .label {
  font-size: 0.75rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-top: 4px;
}

.hero-links {
  position: relative;
  margin-top: 1.6rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.8rem;
}

.hero-link {
  text-decoration: none;
  color: var(--accent);
  border: 1px solid var(--badge-border);
  background: var(--badge-bg);
  padding: 0.65rem 1rem;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  transition: all 0.2s ease;
}

.hero-link:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
}

.scroll-hint {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-dim);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  animation: bob 2s infinite;
}

@keyframes bob {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

.scroll-hint svg {
  width: 20px;
  height: 20px;
}

.nav-tabs {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  justify-content: center;
  gap: 4px;
  padding: 12px 1rem;
  background: var(--nav-bg);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: background 0.4s;
}

.nav-tab {
  padding: 8px 20px;
  border-radius: 8px;
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  color: var(--text-dim);
  transition: all 0.2s;
  border: none;
  background: none;
  font-family: inherit;
}

.nav-tab:hover {
  color: var(--text);
  background: var(--surface2);
}

.nav-tab.active {
  color: #fff;
  background: var(--accent);
}

.nav-featured {
  display: inline-block;
  margin-left: 6px;
  padding: 1px 6px;
  font-size: 0.58rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: linear-gradient(135deg, var(--gold), #ea580c);
  color: #fff;
  border-radius: 999px;
  vertical-align: middle;
  line-height: 1.6;
  box-shadow: 0 1px 4px rgba(217, 119, 6, 0.35);
}

.section {
  display: none;
  max-width: 1200px;
  margin: 0 auto;
  padding: 3rem 1.5rem;
}

.section.active {
  display: block;
}

.section-title {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
}

.section-subtitle {
  color: var(--text-dim);
  font-size: 0.95rem;
  margin-bottom: 2.5rem;
}

.groups-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
}

.group-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.25rem;
  transition: all 0.3s;
  box-shadow: 0 1px 4px var(--shadow);
}

.group-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px var(--card-hover-shadow);
}

.group-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.group-letter {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent);
  background: var(--group-letter-bg);
  padding: 4px 12px;
  border-radius: 6px;
}

.group-teams {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.team-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: 8px;
  background: var(--team-row-bg);
  font-size: 0.88rem;
  font-weight: 500;
  transition: background 0.3s;
}

.team-row .flag {
  font-size: 1.3rem;
}

.team-row.host {
  border-left: 3px solid var(--gold);
}

.cities-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1rem;
}

.city-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.25rem;
  transition: all 0.3s;
  box-shadow: 0 1px 4px var(--shadow);
}

.city-card:hover {
  border-color: var(--accent2);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px var(--card-hover-shadow);
}

.city-card .country-tag {
  display: inline-block;
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 3px 8px;
  border-radius: 4px;
  margin-bottom: 8px;
}

.tag-usa {
  background: rgba(37, 99, 235, 0.1);
  color: var(--blue);
}

.tag-mex {
  background: rgba(5, 150, 105, 0.1);
  color: var(--green);
}

.tag-can {
  background: rgba(220, 38, 38, 0.1);
  color: var(--red);
}

.city-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.city-card .stadium {
  font-size: 0.8rem;
  color: var(--text-dim);
}

.schedule-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.schedule-date {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--gold);
  margin-top: 1rem;
  margin-bottom: 0.25rem;
}

.match-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem 1.25rem;
  transition: all 0.2s;
  box-shadow: 0 1px 4px var(--shadow);
}

.match-card:hover {
  border-color: var(--accent);
}

.match-group {
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  min-width: 55px;
}

.match-teams {
  flex: 1;
  font-size: 0.9rem;
  font-weight: 500;
}

.match-vs {
  color: var(--text-dim);
  font-weight: 300;
  margin: 0 6px;
}

.match-venue {
  font-size: 0.75rem;
  color: var(--text-dim);
  text-align: right;
  min-width: 120px;
}

.countdown-section {
  text-align: center;
  padding: 4rem 2rem;
}

.countdown-grid {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-top: 2rem;
  flex-wrap: wrap;
}

.countdown-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.5rem 2rem;
  min-width: 110px;
  box-shadow: 0 1px 4px var(--shadow);
}

.countdown-item .num {
  font-size: 2.5rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.countdown-item .label {
  font-size: 0.7rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-top: 4px;
}

.about-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}

.about-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2rem;
  box-shadow: 0 1px 4px var(--shadow);
  transition: all 0.3s;
}

.about-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px var(--card-hover-shadow);
}

.about-card .icon {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.about-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.about-card p {
  font-size: 0.88rem;
  color: var(--text-dim);
  line-height: 1.6;
}

footer {
  padding: 3rem 1rem;
}

@media (max-width: 600px) {
  .hero-stats {
    gap: 1.5rem;
  }

  .hero-links {
    width: 100%;
    flex-direction: column;
    align-items: center;
  }

  .hero-link {
    width: min(100%, 320px);
    text-align: center;
  }

  .nav-tabs {
    overflow-x: auto;
    justify-content: flex-start;
  }

  .countdown-grid {
    gap: 0.75rem;
  }

  .countdown-item {
    min-width: 70px;
    padding: 1rem;
  }

  .countdown-item .num {
    font-size: 1.8rem;
  }

  .match-venue {
    display: none;
  }
}

/* ============================================================
   BRACKET SECTION
   ============================================================ */

/* Group projection grid */
.group-proj-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 0.8rem;
  margin-bottom: 2.5rem;
}

.gp-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1rem;
  box-shadow: 0 1px 4px var(--shadow);
}

.gp-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.7rem;
}

.gp-letter {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  background: var(--group-letter-bg);
  padding: 3px 10px;
  border-radius: 6px;
}

.gp-teams {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.gp-team {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 5px 7px;
  border-radius: 7px;
  font-size: 0.82rem;
  font-weight: 500;
}

.gp-team.qual {
  background: var(--team-row-bg);
}

.gp-team.third {
  background: rgba(99, 102, 241, 0.05);
  border: 1px dashed rgba(99, 102, 241, 0.2);
}

.gp-team.out {
  opacity: 0.4;
}

.gp-team-name {
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.gp-prob {
  font-size: 0.7rem;
  color: var(--text-dim);
  font-weight: 600;
}

.gp-badge {
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 2px 6px;
  border-radius: 4px;
}

.gp-badge.w {
  background: rgba(5, 150, 105, 0.12);
  color: var(--green);
}

.gp-badge.r {
  background: rgba(37, 99, 235, 0.1);
  color: var(--blue);
}

.gp-badge.t {
  background: rgba(99, 102, 241, 0.08);
  color: var(--accent);
}

/* Championship odds */
.odds-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 0.75rem;
  margin-bottom: 2.5rem;
}

.odds-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1rem;
  box-shadow: 0 1px 4px var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  transition: all 0.2s;
}

.odds-card:hover {
  border-color: var(--accent);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px var(--card-hover-shadow);
}

.odds-card.top {
  border-color: var(--gold);
  background: linear-gradient(135deg, var(--surface), rgba(217, 119, 6, 0.04));
}

.odds-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
}

.odds-rank {
  font-size: 0.7rem;
  color: var(--text-dim);
  font-weight: 700;
  min-width: 20px;
}

.odds-team {
  flex: 1;
  font-weight: 700;
  font-size: 0.9rem;
}

.odds-pct {
  font-size: 1.3rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.odds-pct.gold {
  background: linear-gradient(135deg, var(--gold), #ea580c);
}

.odds-bar-track {
  height: 5px;
  background: var(--surface2);
  border-radius: 999px;
  overflow: hidden;
}

.odds-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  border-radius: 999px;
  transition: width 0.8s ease;
}

.odds-bar-fill.gold {
  background: linear-gradient(90deg, var(--gold), #ea580c);
}

/* Bracket tree */
.section#bracket {
  position: relative;
  border: 1px solid var(--border);
  border-radius: 18px;
  background:
    radial-gradient(circle at top right, rgba(99, 102, 241, 0.08), transparent 45%),
    linear-gradient(180deg, var(--surface), color-mix(in srgb, var(--surface) 92%, var(--surface2)));
  box-shadow: 0 16px 42px var(--card-hover-shadow);
  padding: 2.4rem 1.5rem 2.8rem;
}

.section#bracket .section-title {
  font-size: clamp(2rem, 3.2vw, 2.7rem);
  margin-bottom: 0.4rem;
}

.section#bracket .section-subtitle {
  font-size: 1rem;
  max-width: 760px;
}

.bracket-scroll {
  overflow-x: auto;
  padding: 1rem 0.5rem 1.5rem;
  margin-bottom: 2rem;
  background: linear-gradient(180deg, var(--surface), var(--surface2));
  border: 1px solid color-mix(in srgb, var(--accent) 22%, var(--border));
  border-radius: 12px;
  box-shadow: inset 0 0 0 1px rgba(99, 102, 241, 0.08);
}

.b-tree {
  display: flex;
  gap: 0;
  min-width: 1080px;
  align-items: flex-start;
}

.b-round {
  display: flex;
  flex-direction: column;
  flex: 1;
}

.b-round-title {
  text-align: center;
  font-size: 0.68rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: color-mix(in srgb, var(--accent) 85%, var(--text));
  padding: 0.28rem 0.5rem;
  margin: 0 4px 0.75rem;
  border-radius: 20px;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(168, 85, 247, 0.08));
  border: 1px solid rgba(99, 102, 241, 0.3);
}

.b-matches {
  display: flex;
  flex-direction: column;
  flex: 1;
  justify-content: space-around;
  gap: 4px;
  padding: 0 4px;
}

.b-pair {
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
  margin: 3px 0;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--accent) 18%, var(--border));
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
}

/* Right side bracket connector */
.b-pair::after {
  content: '';
  position: absolute;
  right: -9px;
  top: calc(25% - 1px);
  height: calc(50% + 2px);
  border-right: 2px solid color-mix(in srgb, var(--accent) 45%, var(--border));
  border-top: 2px solid color-mix(in srgb, var(--accent) 45%, var(--border));
  border-bottom: 2px solid color-mix(in srgb, var(--accent) 45%, var(--border));
  width: 9px;
  border-radius: 0 4px 4px 0;
  pointer-events: none;
}

/* Final round: no connector needed */
.b-round.b-final .b-pair::after {
  display: none;
}

.b-team {
  background: var(--surface);
  padding: 7px 10px;
  font-size: 0.76rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 5px;
  min-height: 34px;
  overflow: hidden;
  transition: background 0.15s;
  border-left: 3px solid transparent;
}

.b-team.fav {
  background: linear-gradient(90deg, rgba(217, 119, 6, 0.1), var(--surface));
  border-left-color: var(--gold);
}

.b-team.winner {
  background: linear-gradient(90deg, rgba(34, 197, 94, 0.1), var(--surface));
  border-left-color: #22c55e;
}

.b-team.projected {
  opacity: 0.5;
  font-weight: 500;
}

.b-team-flag {
  font-size: 0.88rem;
  flex-shrink: 0;
}

.b-team-name {
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.b-team-prob {
  font-size: 0.66rem;
  color: var(--text-dim);
  white-space: nowrap;
  flex-shrink: 0;
  font-weight: 700;
}

.b-team.fav .b-team-prob {
  color: var(--gold);
}

.b-team.winner .b-team-prob {
  color: #22c55e;
}

.b-sep {
  height: 1px;
  background: var(--border);
}

.bracket-note {
  font-size: 0.78rem;
  color: var(--text-dim);
  margin-bottom: 0.75rem;
}

@media (max-width: 600px) {
  .section#bracket {
    border-radius: 14px;
    padding: 2rem 1rem 2.2rem;
  }

  .group-proj-grid {
    grid-template-columns: 1fr 1fr;
  }
  .odds-grid {
    grid-template-columns: 1fr;
  }
}