:root {
  color-scheme: light;
  --bg: #f5f6fb;
  --surface: #ffffff;
  --text: #201f3a;
  --text-soft: #6b6b83;
  --border: #e9e7f5;
  --shadow: 0 4px 18px rgba(40, 30, 80, 0.08);

  --amator-primary: #ff4d6d;
  --amator-primary-dark: #e11d48;
  --amator-bg: #fff0f3;
  --amator-chip: #ffd9e1;

  --master-primary: #8b5cf6;
  --master-primary-dark: #6d28d9;
  --master-bg: #f1ecff;
  --master-chip: #e3d6ff;

  --success: #16a34a;
  --danger: #ef4444;

  --rank-splus: #d97706;
  --rank-s: #f43f5e;
  --rank-a: #0ea5e9;
  --rank-b: #16a34a;
  --rank-bminus: #a855f7;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --bg: #15131f;
    --surface: #1f1c2c;
    --text: #f1f0f7;
    --text-soft: #a8a5bd;
    --border: #322d47;
    --shadow: 0 4px 18px rgba(0, 0, 0, 0.35);

    --amator-bg: #341b22;
    --amator-chip: #4d2530;

    --master-bg: #26193f;
    --master-chip: #3d2860;

    --rank-splus: #fbbf24;
    --rank-s: #fb7185;
    --rank-a: #38bdf8;
    --rank-b: #4ade80;
    --rank-bminus: #c084fc;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  padding-block: env(safe-area-inset-top, 0px) env(safe-area-inset-bottom, 0px);
  background: var(--bg);
  color: var(--text);
  font-family: "Be Vietnam Pro", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  padding-bottom: 60px;
}

img { max-width: 100%; }
[hidden], .hidden { display: none !important; }

#confetti-canvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 999;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 22px 20px 18px;
  max-width: 980px;
  margin: 0 auto;
}
.topbar-inner h1 {
  margin: 0;
  font-size: clamp(20px, 4vw, 30px);
  font-weight: 800;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--amator-primary), var(--master-primary));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.subtitle {
  margin: 4px 0 0;
  color: var(--text-soft);
  font-size: 14px;
}
.admin-btn {
  flex-shrink: 0;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  border-radius: 999px;
  padding: 9px 16px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  box-shadow: var(--shadow);
  transition: transform .15s ease;
}
.admin-btn:hover { transform: translateY(-1px); }
.admin-btn.unlocked { background: var(--success); color: #fff; border-color: transparent; }
.admin-btn span { margin-left: 2px; }

.tabs {
  max-width: 980px;
  margin: 0 auto 18px;
  padding: 0 20px;
  display: flex;
  gap: 8px;
}
.tab {
  flex: 1;
  padding: 12px 14px;
  border: none;
  border-radius: 14px;
  background: var(--surface);
  color: var(--text-soft);
  font-weight: 700;
  font-size: 15px;
  cursor: pointer;
  box-shadow: var(--shadow);
  border: 2px solid transparent;
  transition: all .15s ease;
}
.tab.active { color: var(--text); border-color: var(--amator-primary); }
#bracket-master ~ .tabs,
.tab[data-bracket="master"].active { border-color: var(--master-primary); }

main {
  max-width: 980px;
  margin: 0 auto;
  padding: 0 20px;
}

.bracket { display: none; flex-direction: column; gap: 20px; }
.bracket.active { display: flex; }

.round-card {
  background: var(--surface);
  border-radius: 20px;
  box-shadow: var(--shadow);
  overflow: hidden;
  border: 1px solid var(--border);
}
.round-head {
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
}
.bracket[data-bracket="amator"] .round-head { background: var(--amator-bg); }
.bracket[data-bracket="master"] .round-head { background: var(--master-bg); }
.round-head h3 {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
}
.round-body { padding: 18px 20px 22px; }

.btn {
  border: none;
  border-radius: 12px;
  padding: 10px 18px;
  font-weight: 700;
  font-size: 14px;
  cursor: pointer;
  transition: transform .12s ease, opacity .12s ease;
}
.btn:active { transform: scale(0.96); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

.bracket[data-bracket="amator"] .btn-draw { background: var(--amator-primary); color: #fff; }
.bracket[data-bracket="amator"] .btn-draw:hover:not(:disabled) { background: var(--amator-primary-dark); }
.bracket[data-bracket="master"] .btn-draw { background: var(--master-primary); color: #fff; }
.bracket[data-bracket="master"] .btn-draw:hover:not(:disabled) { background: var(--master-primary-dark); }

.btn-reset {
  background: transparent;
  color: var(--danger);
  border: 1px solid var(--danger);
  padding: 8px 14px;
  font-size: 13px;
}
.btn-ghost { background: var(--border); color: var(--text); }
.btn-primary { background: var(--amator-primary); color: #fff; }
.btn-danger { background: var(--danger); color: #fff; }

.staging {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 14px;
  align-items: start;
}
.staging .vs-col {
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  color: var(--text-soft);
  font-size: 13px;
  padding-top: 8px;
}
.chip-col { display: flex; flex-direction: column; gap: 8px; }
.chip {
  padding: 9px 12px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 600;
  text-align: center;
}
.bracket[data-bracket="amator"] .chip { background: var(--amator-chip); }
.bracket[data-bracket="master"] .chip { background: var(--master-chip); }
.chip.spinning { animation: pulse 0.25s ease-in-out infinite alternate; }
@keyframes pulse { from { opacity: .55; } to { opacity: 1; } }

.draw-actions {
  margin-top: 16px;
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}

.pairs-list { display: flex; flex-direction: column; gap: 8px; }
.pair-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--bg);
  animation: pop-in .35s ease;
}
@keyframes pop-in {
  from { opacity: 0; transform: translateY(6px) scale(.97); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}
.pair-no {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--border);
  color: var(--text-soft);
  font-size: 11px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
}
.pair-name {
  flex: 1;
  min-width: 0;
  font-weight: 700;
  font-size: 15px;
  overflow-wrap: break-word;
}
.pair-name:last-of-type { text-align: right; }
.pair-row .vs-badge {
  flex-shrink: 0;
  font-size: 11px;
  font-weight: 800;
  color: #fff;
  border-radius: 999px;
  padding: 4px 9px;
  white-space: nowrap;
  text-transform: uppercase;
}
.bracket[data-bracket="amator"] .vs-badge { background: var(--amator-primary); }
.bracket[data-bracket="master"] .vs-badge { background: var(--master-primary); }

.pair-name.rank-splus, .chip.rank-splus { color: var(--rank-splus); }
.pair-name.rank-s, .chip.rank-s { color: var(--rank-s); }
.pair-name.rank-a, .chip.rank-a { color: var(--rank-a); }
.pair-name.rank-b, .chip.rank-b { color: var(--rank-b); }
.pair-name.rank-bminus, .chip.rank-bminus { color: var(--rank-bminus); }

.page-footer {
  text-align: center;
  color: var(--text-soft);
  font-size: 12px;
  margin-top: 30px;
  padding: 0 20px;
}

/* Modals */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(10, 8, 20, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  z-index: 1000;
}
.modal {
  background: var(--surface);
  border-radius: 18px;
  padding: 22px;
  max-width: 360px;
  width: 100%;
  box-shadow: var(--shadow);
}
.modal h3 { margin: 0 0 8px; }
.modal p { margin: 0 0 14px; color: var(--text-soft); font-size: 14px; }
.modal input {
  width: 100%;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  font-size: 18px;
  letter-spacing: 4px;
  text-align: center;
}
.modal-actions {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
  margin-top: 16px;
}
.error-text { color: var(--danger); font-size: 13px; margin-top: 10px; }

/* Toasts */
#toast-container {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 1100;
  width: min(92vw, 420px);
}
.toast {
  background: var(--surface);
  color: var(--text);
  border-radius: 12px;
  padding: 12px 16px;
  box-shadow: var(--shadow);
  font-size: 14px;
  font-weight: 600;
  border-left: 4px solid var(--success);
  animation: pop-in .25s ease;
}
.toast.error { border-left-color: var(--danger); }

/* Rules box */
.rules-box {
  max-width: 980px;
  margin: 0 auto 18px;
  padding: 16px 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: var(--shadow);
}
.rules-box h3 { margin: 0 0 10px; font-size: 15px; }
.rules-box ul { margin: 0; padding-left: 20px; display: flex; flex-direction: column; gap: 6px; }
.rules-box li { font-size: 13px; color: var(--text-soft); line-height: 1.5; }

/* Groups section */
.groups-section { margin-top: 24px; padding-top: 20px; border-top: 2px dashed var(--border); }
.groups-title { font-size: 19px; margin: 0 0 14px; }
.groups-cta {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 18px 20px;
  box-shadow: var(--shadow);
}
.groups-cta p { margin: 0 0 10px; font-size: 14px; }
.hint-text { color: var(--text-soft); font-size: 13px; }

.subtab-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
}
.subtab {
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-soft);
  font-weight: 700;
  font-size: 13px;
  cursor: pointer;
}
.bracket[data-bracket="amator"] .subtab.active { background: var(--amator-primary); border-color: var(--amator-primary); color: #fff; }
.bracket[data-bracket="master"] .subtab.active { background: var(--master-primary); border-color: var(--master-primary); color: #fff; }

.groups-grid { position: relative; }
.group-card {
  display: none;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 16px 18px 18px;
  box-shadow: var(--shadow);
}
.group-card.active { display: block; animation: pop-in .25s ease; }
.group-card h4 { margin: 0 0 12px; font-size: 16px; }

.standings-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12.5px;
  margin-bottom: 16px;
}
.standings-table th, .standings-table td {
  padding: 6px 7px;
  text-align: center;
  border-bottom: 1px solid var(--border);
}
.standings-table th:nth-child(2), .standings-table td:nth-child(2) { text-align: left; }
.standings-table thead th { color: var(--text-soft); font-weight: 700; font-size: 11px; text-transform: uppercase; }
.standings-table tbody tr.qualify td:nth-child(2) { font-weight: 800; }
.standings-table tbody tr.qualify { background: color-mix(in srgb, var(--success) 10%, transparent); }
.standings-table td.diff-pos { color: var(--success); font-weight: 800; }
.standings-table td.diff-neg { color: var(--danger); font-weight: 800; }

.matches-list { display: flex; flex-direction: column; gap: 10px; }
.match-row {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 10px 12px;
  background: var(--bg);
}
.match-teams {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 13.5px;
  font-weight: 700;
  margin-bottom: 8px;
  flex-wrap: wrap;
  text-align: center;
}
.match-teams .vs-mini { font-size: 11px; color: var(--text-soft); font-weight: 700; }
.team-name.winner { color: var(--success); }
.team-name.winner::after { content: " 🏆"; }

.score-grid {
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 8px;
}
.game-stepper {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 8px 10px;
}
.game-label { font-size: 10px; font-weight: 800; color: var(--text-soft); text-transform: uppercase; }
.stepper-pair { display: flex; align-items: center; gap: 6px; }
.side-stepper { display: flex; align-items: center; gap: 4px; }
.score-sep { color: var(--text-soft); font-weight: 700; }
.score-num {
  min-width: 26px;
  text-align: center;
  font-size: 17px;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}
input.score-num {
  width: 38px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
  font-family: inherit;
  padding: 4px 2px;
  -moz-appearance: textfield;
}
input.score-num::-webkit-outer-spin-button,
input.score-num::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}
input.score-num:focus {
  outline: 2px solid var(--amator-primary);
  outline-offset: 1px;
}
.bracket[data-bracket="master"] input.score-num:focus { outline-color: var(--master-primary); }
.step-btn {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: none;
  font-size: 18px;
  font-weight: 800;
  line-height: 1;
  cursor: pointer;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  touch-action: manipulation;
}
.step-btn.plus { background: var(--success); }
.step-btn.minus { background: var(--text-soft); }
.step-btn:active { transform: scale(0.88); }

.match-status-badge {
  text-align: center;
  font-size: 11px;
  font-weight: 800;
  color: var(--text-soft);
}
.match-status-badge.live { color: var(--danger); }
.match-status-badge.done { color: var(--success); }

.bo-badge {
  font-size: 10px;
  font-weight: 800;
  color: var(--text-soft);
  background: var(--border);
  border-radius: 999px;
  padding: 2px 8px;
  margin-left: 4px;
}

.knockout-list { display: flex; flex-direction: column; gap: 16px; }
.knockout-item {
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 14px;
  background: var(--bg);
}
.knockout-round-label {
  font-weight: 800;
  font-size: 13px;
  color: var(--amator-primary);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}
.bracket[data-bracket="master"] .knockout-round-label { color: var(--master-primary); }

.knockout-add-form {
  margin-top: 16px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 14px;
  border: 1px dashed var(--border);
  border-radius: 14px;
}
.knockout-add-form select, .knockout-add-form input[type="text"] {
  padding: 9px 10px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font-size: 13px;
}
.knockout-add-form input[type="text"] { flex: 1; min-width: 140px; }

@media (max-width: 560px) {
  .staging { grid-template-columns: 1fr; }
  .staging .vs-col { padding: 2px 0; }
  .pair-row { gap: 6px; padding: 9px 10px; }
  .pair-name { font-size: 13.5px; }
}

/* ---------- Fixed pairs / seeds ---------- */
.fixed-badge {
  margin-left: auto;
  font-size: 12px; font-weight: 700;
  padding: 3px 10px; border-radius: 999px;
  background: var(--surface); color: var(--success); border: 1px solid var(--border);
}
.seed-tag {
  display: inline-block; margin-left: 4px; padding: 1px 6px; border-radius: 6px;
  font-size: 11px; font-weight: 800; color: #fff; background: var(--rank-splus); vertical-align: middle;
}

/* ---------- Group-draw reveal overlay ---------- */
.reveal-overlay {
  position: fixed; inset: 0; z-index: 990;
  background: rgba(15, 12, 30, 0.82);
  display: flex; align-items: center; justify-content: center;
  padding: 16px; overflow-y: auto;
}
.reveal-box {
  background: var(--surface); color: var(--text);
  border-radius: 20px; box-shadow: var(--shadow);
  width: min(960px, 100%); padding: 22px 20px; text-align: center;
}
.reveal-box h2 { margin: 0 0 4px; font-size: 22px; }
.reveal-sub { margin: 0 0 16px; color: var(--text-soft); font-size: 14px; }
.reveal-overlay[data-bracket="amator"] .reveal-box h2 { color: var(--amator-primary-dark); }
.reveal-overlay[data-bracket="master"] .reveal-box h2 { color: var(--master-primary-dark); }
.reveal-drum {
  margin: 0 auto 18px; padding: 14px 18px; max-width: 520px;
  border-radius: 14px; font-size: 20px; font-weight: 800;
  background: var(--master-bg); border: 2px dashed var(--border);
  min-height: 1.4em;
}
.reveal-overlay[data-bracket="amator"] .reveal-drum { background: var(--amator-bg); }
.reveal-drum.rolling { animation: pulse 0.15s ease-in-out infinite alternate; }
.reveal-grid {
  display: grid; gap: 12px;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  text-align: left;
}
.reveal-group {
  border: 2px solid var(--border); border-radius: 14px; padding: 12px;
  transition: border-color .2s, transform .2s;
}
.reveal-group h4 { margin: 0 0 10px; font-size: 16px; text-align: center; }
.reveal-group.target { border-color: var(--rank-splus); transform: scale(1.03); }
.reveal-slot {
  padding: 9px 12px; margin-bottom: 8px; border-radius: 10px;
  background: var(--bg); color: var(--text-soft); font-weight: 600;
  border: 1px dashed var(--border); text-align: center;
}
.reveal-slot.filled {
  color: var(--text); border-style: solid; text-align: left;
  animation: pop-in .35s ease;
}
.reveal-overlay[data-bracket="amator"] .reveal-slot.filled { background: var(--amator-chip); }
.reveal-overlay[data-bracket="master"] .reveal-slot.filled { background: var(--master-chip); }
.reveal-slot.seed { border-color: var(--rank-splus); border-width: 2px; }