/* ===== CSS Custom Properties ===== */
:root {
  --bg: #f0f4f8;
  --bg2: #ffffff;
  --bg3: #e8edf3;
  --surface: rgba(255,255,255,0.75);
  --border: rgba(0,0,0,0.08);
  --text: #0d1117;
  --text2: #4a5568;
  --accent: #1a56db;
  --accent2: #0ea5e9;
  --gold: #f59e0b;
  --silver: #94a3b8;
  --green: #10b981;
  --red: #ef4444;
  --gradient: linear-gradient(135deg, #1a3a6e 0%, #0ea5e9 50%, #10b981 100%);
  --gradient-gold: linear-gradient(135deg, #f59e0b, #ef4444);
  --shadow: 0 4px 24px rgba(0,0,0,0.10);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.16);
  --radius: 12px;
  --radius-sm: 8px;
  --transition: 0.25s ease;
  --header-h: 80px;
}

body.dark-mode {
  --bg: #0d1117;
  --bg2: #161b22;
  --bg3: #1c2128;
  --surface: rgba(22,27,34,0.85);
  --border: rgba(255,255,255,0.08);
  --text: #e6edf3;
  --text2: #8b949e;
  --shadow: 0 4px 24px rgba(0,0,0,0.40);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.55);
}

/* ===== Reset & Base ===== */
*,*::before,*::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  transition: background var(--transition), color var(--transition);
  min-height: 100vh;
}

/* ===== Loading Screen ===== */
.loading-screen {
  position: fixed; inset: 0;
  background: var(--gradient);
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  z-index: 9999;
  transition: opacity 0.5s, visibility 0.5s;
}
.loading-screen.hidden { opacity: 0; visibility: hidden; pointer-events: none; }
.loading-ball {
  width: 56px; height: 56px;
  border-radius: 50%;
  background: #fff;
  background-image: radial-gradient(circle at 35% 35%, transparent 40%, rgba(0,0,0,0.15) 40%),
    repeating-conic-gradient(#000 0deg 30deg, transparent 30deg 60deg);
  background-size: cover;
  animation: spin 0.8s linear infinite, bounce 0.8s ease-in-out infinite alternate;
  box-shadow: 0 8px 24px rgba(0,0,0,0.3);
}
.loading-text { color: #fff; margin-top: 20px; font-size: 1.1rem; font-weight: 600; letter-spacing: 0.05em; }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes bounce { to { transform: translateY(-20px) rotate(360deg); } }

/* ===== Header ===== */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: var(--surface);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow);
}
.header-inner {
  max-width: 1400px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 20px;
}
.logo-wrap {
  display: flex; align-items: center; gap: 10px;
  text-decoration: none; color: var(--text);
}
.trophy-icon { font-size: 1.8rem; animation: float 3s ease-in-out infinite; }
@keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-6px); } }
.logo-text { font-size: 1.25rem; font-weight: 700; letter-spacing: -0.02em; }
.logo-text strong { background: var(--gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

.header-nav { display: flex; gap: 10px; flex-wrap: wrap; }
.nav-btn {
  padding: 8px 14px; border-radius: var(--radius-sm);
  border: 1px solid var(--border); background: var(--surface);
  color: var(--text); font-size: 0.85rem; font-weight: 600;
  cursor: pointer; transition: all var(--transition);
  backdrop-filter: blur(8px);
}
.nav-btn:hover { background: var(--accent); color: #fff; border-color: var(--accent); transform: translateY(-1px); }

.progress-wrap {
  position: relative; height: 6px;
  background: var(--bg3); overflow: hidden;
}
.progress-fill {
  height: 100%; width: 0%;
  background: var(--gradient);
  transition: width 0.4s ease;
}
.progress-label {
  position: absolute; right: 8px; top: -20px;
  font-size: 0.7rem; font-weight: 700;
  color: var(--accent);
}

/* ===== Hero ===== */
.hero {
  text-align: center;
  padding: 72px 20px 56px;
  background: var(--gradient);
  position: relative; overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute; inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Ccircle cx='30' cy='30' r='28' stroke='%23fff' stroke-width='2'/%3E%3Cline x1='30' y1='2' x2='30' y2='58' stroke='%23fff' stroke-width='1'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  opacity: 0.3;
}
.hero h1 {
  font-size: clamp(1.8rem, 5vw, 3rem);
  font-weight: 900; color: #fff;
  position: relative; margin-bottom: 12px;
  text-shadow: 0 2px 20px rgba(0,0,0,0.3);
  line-height: 1.15;
}
.hero-sub { color: rgba(255,255,255,0.85); font-size: 1.1rem; position: relative; margin-bottom: 28px; }
.hero-cta { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; position: relative; }

.btn-primary {
  padding: 14px 32px; border-radius: 50px;
  background: #fff; color: var(--accent);
  font-size: 1rem; font-weight: 800; border: none;
  cursor: pointer; transition: all var(--transition);
  box-shadow: 0 4px 20px rgba(0,0,0,0.2);
}
.btn-primary:hover { transform: translateY(-2px) scale(1.03); box-shadow: 0 8px 32px rgba(0,0,0,0.3); }

.btn-secondary {
  padding: 14px 32px; border-radius: 50px;
  background: rgba(255,255,255,0.15);
  backdrop-filter: blur(8px);
  color: #fff; font-size: 1rem; font-weight: 700;
  border: 2px solid rgba(255,255,255,0.4);
  cursor: pointer; transition: all var(--transition);
}
.btn-secondary:hover { background: rgba(255,255,255,0.25); transform: translateY(-2px); }

/* ===== Section Titles ===== */
.section-title {
  text-align: center; font-size: 1.6rem; font-weight: 800;
  margin-bottom: 32px; position: relative;
}
.section-title::after {
  content: ''; display: block; width: 48px; height: 4px;
  background: var(--gradient); border-radius: 2px;
  margin: 8px auto 0;
}

/* ===== Bracket Section ===== */
.bracket-section {
  padding: 60px 20px;
  max-width: 100%; overflow: hidden;
}
.bracket-scroll-wrap {
  overflow-x: auto;
  padding-bottom: 20px;
  -webkit-overflow-scrolling: touch;
}
.bracket-scroll-wrap::-webkit-scrollbar { height: 6px; }
.bracket-scroll-wrap::-webkit-scrollbar-track { background: var(--bg3); border-radius: 3px; }
.bracket-scroll-wrap::-webkit-scrollbar-thumb { background: var(--accent); border-radius: 3px; }

.bracket {
  display: flex;
  gap: 0;
  min-width: max-content;
  padding: 20px 10px;
  align-items: stretch;
}

/* ===== Round Column ===== */
.round-col {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 160px;
  position: relative;
}
.round-label {
  font-size: 0.7rem; font-weight: 800; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--accent);
  background: var(--bg3); border: 1px solid var(--border);
  padding: 4px 10px; border-radius: 20px;
  margin-bottom: 16px; white-space: nowrap;
}

.matches-wrap {
  display: flex;
  flex-direction: column;
  flex: 1;
  justify-content: space-around;
  width: 100%;
  gap: 0;
}

/* ===== Match Card ===== */
.match-wrapper {
  display: flex;
  align-items: center;
  position: relative;
  flex: 1;
  justify-content: center;
}

.match {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  width: 148px;
  box-shadow: var(--shadow);
  transition: box-shadow var(--transition), transform var(--transition);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.match:hover { box-shadow: var(--shadow-lg); transform: translateY(-2px); }

.team-slot {
  display: flex; align-items: center;
  gap: 6px;
  padding: 9px 10px;
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
  border: none; background: none; width: 100%;
  text-align: left; color: var(--text);
  font-size: 0.8rem; font-weight: 600;
  position: relative;
}
.team-slot:not(:last-child) { border-bottom: 1px solid var(--border); }
.team-slot:hover:not(.tbd):not(.winner) { background: var(--bg3); }
.team-slot.winner {
  background: linear-gradient(135deg, rgba(16,185,129,0.18), rgba(16,185,129,0.06));
  color: var(--green);
  font-weight: 800;
}
.team-slot.loser { opacity: 0.45; }
.team-slot.tbd { cursor: default; color: var(--text2); font-style: italic; font-weight: 400; }

.team-flag-img {
  width: 24px; height: 18px;
  object-fit: cover;
  border-radius: 2px;
  flex-shrink: 0;
  display: inline-block;
  vertical-align: middle;
  box-shadow: 0 1px 3px rgba(0,0,0,0.25);
}
.team-flag-placeholder {
  width: 24px; height: 18px;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 0.75rem; color: var(--text2); flex-shrink: 0;
}
.stat-flag .team-flag-img { width: 32px; height: 24px; }
.champion-name .team-flag-img { width: 40px; height: 30px; border-radius: 3px; }
.podium-team .team-flag-img { width: 24px; height: 18px; }
.team-name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.win-check {
  font-size: 0.75rem;
  opacity: 0;
  transition: opacity var(--transition);
  color: var(--green);
}
.team-slot.winner .win-check { opacity: 1; }

.match-divider {
  height: 1px;
  background: var(--border);
}

/* connector lines */
.connector-right {
  position: absolute;
  right: -20px; top: 50%;
  width: 20px; height: 1px;
  background: var(--border);
  transform: translateY(-50%);
}

/* ===== Final Column (Champion display) ===== */
.final-col {
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  min-width: 180px;
  padding: 0 10px;
}
.final-label {
  font-size: 0.7rem; font-weight: 800; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--gold);
  background: rgba(245,158,11,0.12); border: 1px solid var(--gold);
  padding: 4px 10px; border-radius: 20px;
  margin-bottom: 16px;
}
.final-trophy-wrap {
  text-align: center;
}
.final-trophy {
  font-size: 3rem;
  display: block;
  animation: float 3s ease-in-out infinite;
  filter: drop-shadow(0 0 20px rgba(245,158,11,0.6));
}
.final-team {
  font-size: 1rem; font-weight: 800;
  color: var(--gold); margin-top: 10px;
  min-height: 1.5em; text-align: center;
  text-shadow: 0 0 20px rgba(245,158,11,0.4);
}

/* ===== Champion Section ===== */
.champion-section {
  padding: 60px 20px;
  background: var(--bg2);
}
.champion-card {
  max-width: 560px; margin: 0 auto;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 48px 36px;
  text-align: center;
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(12px);
  position: relative;
  overflow: hidden;
}
.champion-card::before {
  content: '';
  position: absolute; inset: 0;
  background: var(--gradient);
  opacity: 0.05;
  pointer-events: none;
}
.trophy-glow {
  font-size: 4rem;
  display: block; margin-bottom: 16px;
  animation: float 3s ease-in-out infinite;
  filter: drop-shadow(0 0 30px rgba(245,158,11,0.7));
}
.champion-card h2 { font-size: 1.1rem; font-weight: 700; color: var(--text2); text-transform: uppercase; letter-spacing: 0.1em; margin-bottom: 12px; }
.champion-name {
  font-size: clamp(1.8rem, 6vw, 2.8rem);
  font-weight: 900; color: var(--gold);
  text-shadow: 0 0 30px rgba(245,158,11,0.4);
  margin-bottom: 28px;
  min-height: 1.2em;
}
.podium { display: flex; gap: 20px; justify-content: center; flex-wrap: wrap; }
.podium-item {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 20px; text-align: center;
}
.podium-label { display: block; font-size: 0.7rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text2); margin-bottom: 4px; }
.podium-team { font-size: 1rem; font-weight: 800; color: var(--text); }

/* ===== Stats Section ===== */
.stats-section {
  padding: 60px 20px;
  max-width: 1000px; margin: 0 auto;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 14px;
}
.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 14px;
  display: flex; flex-direction: column; align-items: center;
  gap: 6px;
  transition: all var(--transition);
  backdrop-filter: blur(10px);
  text-align: center;
}
.stat-card:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.stat-flag { font-size: 1.6rem; }
.stat-name { font-size: 0.8rem; font-weight: 700; }
.stat-wins { font-size: 1.4rem; font-weight: 900; color: var(--accent); }
.stat-label { font-size: 0.65rem; color: var(--text2); text-transform: uppercase; letter-spacing: 0.05em; }
.stat-bar-wrap { width: 100%; height: 4px; background: var(--bg3); border-radius: 2px; overflow: hidden; }
.stat-bar { height: 100%; background: var(--gradient); border-radius: 2px; transition: width 0.5s ease; }

/* ===== Actions Section ===== */
.actions-section {
  padding: 60px 20px;
  background: var(--bg2);
  max-width: 1000px; margin: 0 auto;
}
.actions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 14px;
}
.action-btn {
  display: flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px 16px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text); font-size: 0.88rem; font-weight: 700;
  cursor: pointer; transition: all var(--transition);
  backdrop-filter: blur(10px);
}
.action-btn svg { width: 18px; height: 18px; fill: currentColor; flex-shrink: 0; }
.action-btn:hover { transform: translateY(-2px); box-shadow: var(--shadow); }

.action-btn:not([class*="-btn"]):hover { background: var(--accent); color: #fff; border-color: var(--accent); }
.whatsapp-btn { color: #25D366; border-color: #25D366; }
.whatsapp-btn:hover { background: #25D366; color: #fff; }
.twitter-btn { color: #000; border-color: #000; }
body.dark-mode .twitter-btn { color: #fff; border-color: #fff; }
.twitter-btn:hover { background: #000; color: #fff; }
body.dark-mode .twitter-btn:hover { background: #fff; color: #000; }
.facebook-btn { color: #1877F2; border-color: #1877F2; }
.facebook-btn:hover { background: #1877F2; color: #fff; }
.telegram-btn { color: #2AABEE; border-color: #2AABEE; }
.telegram-btn:hover { background: #2AABEE; color: #fff; }

/* ===== Modal ===== */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.55);
  backdrop-filter: blur(6px);
  z-index: 200;
  display: flex; align-items: center; justify-content: center;
  padding: 20px;
  animation: fadeIn 0.2s ease;
}
.modal-overlay[hidden] { display: none; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

.modal {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 48px 32px;
  max-width: 440px; width: 100%;
  text-align: center;
  position: relative;
  animation: slideUp 0.3s ease;
  box-shadow: var(--shadow-lg);
}
@keyframes slideUp { from { transform: translateY(30px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }
.modal-close {
  position: absolute; top: 16px; right: 16px;
  background: none; border: none; cursor: pointer;
  font-size: 1.2rem; color: var(--text2);
  padding: 4px 8px; border-radius: 4px;
  transition: background var(--transition);
}
.modal-close:hover { background: var(--bg3); }
.modal-trophy { font-size: 3.5rem; margin-bottom: 12px; animation: float 3s ease-in-out infinite; }
.modal h2 { font-size: 1.4rem; font-weight: 800; margin-bottom: 10px; }
.modal p { color: var(--text2); margin-bottom: 8px; }
.modal-sub { font-size: 0.9rem; margin-bottom: 20px; }
.modal-actions { display: flex; flex-direction: column; gap: 10px; }

/* ===== Toast ===== */
.toast {
  position: fixed; bottom: 24px; left: 50%;
  transform: translateX(-50%) translateY(80px);
  background: #1a3a6e; color: #fff;
  padding: 12px 24px; border-radius: 50px;
  font-size: 0.9rem; font-weight: 600;
  z-index: 300; transition: transform 0.35s cubic-bezier(.34,1.56,.64,1);
  white-space: nowrap; pointer-events: none;
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}
.toast.show { transform: translateX(-50%) translateY(0); }

/* ===== Print Styles ===== */
@media print {
  .site-header, .hero, .actions-section, .modal-overlay, .toast { display: none !important; }
  .bracket-section { padding: 0; }
  .bracket-scroll-wrap { overflow: visible; }
  body { background: #fff !important; color: #000 !important; }
  .match { background: #fff !important; border-color: #ccc !important; box-shadow: none !important; }
  .team-slot { color: #000 !important; }
  .team-slot.winner { background: #d1fae5 !important; color: #065f46 !important; }
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .header-inner { padding: 10px 14px; }
  .logo-text { font-size: 1rem; }
  .nav-btn { padding: 6px 10px; font-size: 0.78rem; }
  .hero { padding: 48px 16px 40px; }
  .round-col { min-width: 130px; }
  .match { width: 124px; }
  .team-slot { padding: 8px; font-size: 0.72rem; }
  .team-flag { font-size: 0.9rem; }
  .actions-grid { grid-template-columns: 1fr 1fr; }
  .stats-grid { grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); }
}

@media (max-width: 480px) {
  .hero-cta { flex-direction: column; align-items: center; }
  .btn-primary, .btn-secondary { width: 100%; max-width: 280px; }
  .podium { flex-direction: column; align-items: center; }
  .round-col { min-width: 110px; }
  .match { width: 106px; }
  .team-slot { padding: 7px 8px; font-size: 0.68rem; gap: 4px; }
}

/* ===== Accessibility ===== */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ===== Animations ===== */
@keyframes pulse-glow {
  0%,100% { box-shadow: 0 0 0 0 rgba(16,185,129,0.4); }
  50% { box-shadow: 0 0 0 8px rgba(16,185,129,0); }
}
.team-slot.winner { animation: pulse-glow 2s infinite; }

/* Confetti canvas (placed by JS) */
#confetti-canvas {
  position: fixed; inset: 0;
  pointer-events: none; z-index: 150;
}