:root{
  color-scheme:dark;
  --bg:#0a1512;
  --bg-glow:#16352a;
  --bg-alt:#0e1c17;
  --panel:#12241d;
  --panel-2:#16291f;
  --line:#22392f;
  --text:#f2efe4;
  --text-dim:#8fa89b;
  --text-faint:#5c7268;
    --gold:#e2b84a;
    --live:#ff5f5a;
    --r1:#3fa66b;
    --r2:#4bb08b;
    --r3:#c9b354;
    --r4:#dd8f4a;
    --r5:#e0555f;
    --glass-panel:rgba(18,36,29,.88);
    --bottom-bar-bg:rgba(10,21,18,.82);
    --title-shadow:0 1px 3px rgba(0,0,0,.7), 0 0 20px rgba(0,0,0,.5);
    --tooltip-shadow:0 10px 30px rgba(0,0,0,.4);
    --gold-contrast:#1a1406;
    --result-text:#08110e;
    --bottom-bar-height:74px;
  }
  :root[data-theme="light"]{
    color-scheme:light;
    --bg:#edf4e8;
    --bg-glow:#d2e0c6;
    --bg-alt:#e1eadb;
    --panel:#f8fbf3;
    --panel-2:#f0f6eb;
    --line:#bdcbb4;
    --text:#102a20;
    --text-dim:#43584e;
    --text-faint:#67786f;
    --gold:#9b812c;
    --live:#c84a45;
    --r1:#477d56;
    --r2:#4f8971;
    --r3:#8f853b;
    --r4:#a86a3d;
    --r5:#ad4450;
    --glass-panel:rgba(248,251,243,.92);
    --bottom-bar-bg:rgba(237,244,232,.9);
    --title-shadow:0 1px 2px rgba(255,255,255,.8), 0 0 12px rgba(255,255,255,.5);
    --tooltip-shadow:0 10px 26px rgba(41,62,45,.18);
    --gold-contrast:#1b1404;
    --result-text:#08110e;
  }
  *{box-sizing:border-box;}
  html,body{margin:0;padding:0;height:100%;overflow:hidden;}
  body{
    background:
      radial-gradient(ellipse at 50% -10%, var(--bg-glow) 0%, transparent 60%),
      var(--bg);
    color:var(--text);
    font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Inter,Helvetica,Arial,sans-serif;
    position:relative;
    width:100%;
    height:100%;
  }

  /* ---------- Header (floating over the canvas, transparent) ---------- */
  header{
    position:fixed;
    top:0; left:0; right:0;
    z-index:20;
    padding:18px 20px;
    pointer-events:none;
    display:flex;
    justify-content:space-between;
    align-items:flex-start;
    gap:12px;
  }
  .title-block h1{
    margin:0;
    font-size:clamp(20px,3.4vw,30px);
    font-weight:800;
    letter-spacing:-0.02em;
    text-transform:uppercase;
    text-shadow:var(--title-shadow);
  }
  .title-block h1 span{ color:var(--gold); }
  .title-block p{
    margin:4px 0 0;
    color:var(--text-dim);
    font-size:13px;
    letter-spacing:.02em;
    text-shadow:var(--title-shadow);
  }
  .header-actions{
    pointer-events:auto;
    display:flex;
    gap:8px;
    align-items:center;
    flex:none;
  }
  #langBtn,
  #themeBtn{
    pointer-events:auto;
    background:var(--panel);
    border:1px solid var(--line);
    color:var(--text);
    font-size:11px;
    font-weight:700;
    letter-spacing:.04em;
    padding:6px 10px;
    border-radius:100px;
    cursor:pointer;
    flex:none;
  }
  #themeBtn{ min-width:34px; }
  #langBtn:active,
  #themeBtn:active{ border-color:var(--gold); }

  /* ---------- Bracket wrap (full-viewport canvas) ---------- */
  main{
    position:fixed;
    inset:0 0 var(--bottom-bar-height);
    z-index:1;
  }
  .stage{
    position:relative;
    width:100%;
    height:100%;
    overflow:hidden;
  }
  svg#bracket{ width:100%; height:100%; overflow:visible; }

  .match-node{ cursor:pointer; }
  .match-node .node-bg{
    fill:var(--panel-2);
    stroke:var(--line);
    stroke-width:1.5;
    transition:stroke .15s, fill .15s;
  }
  .match-node:hover .node-bg{ stroke:var(--gold); }
  .match-node.live .node-bg{ stroke:var(--live); }
  .match-node text{
    fill:var(--text);
    font-size:11px;
    font-weight:600;
  }
  .match-node .score{
    fill:var(--text-dim);
    font-variant-numeric:tabular-nums;
    font-weight:700;
  }
  .match-node .probability{
    fill:var(--gold);
    font-size:10px;
    font-variant-numeric:tabular-nums;
    font-weight:700;
  }
  .match-node .pen{
    fill:var(--text-faint);
    font-size:9px;
    font-weight:600;
  }
  .match-node.winner-home .home,
  .match-node.winner-away .away{ fill:var(--gold); }

  @keyframes matchPing{
    0%{ filter:drop-shadow(0 0 0 rgba(226,184,74,0)); }
    25%{ filter:drop-shadow(0 0 14px rgba(226,184,74,.95)); }
    100%{ filter:drop-shadow(0 0 0 rgba(226,184,74,0)); }
  }
  .match-node.ping .node-bg{
    animation: matchPing 1.2s ease-out 2;
  }

  .flag-bubble circle.ring{ fill:var(--panel); stroke:var(--line); stroke-width:1; }
  .flag-bubble image{ transition:filter .2s, opacity .2s; }
  .flag-bubble.eliminated circle.ring{ stroke:var(--text-faint); opacity:.55; }
  .flag-bubble.eliminated image{ filter:grayscale(1); opacity:.28; }
  .flag-bubble.followed circle.ring{ stroke:var(--gold); stroke-width:2.5; }

  /* ---------- Floating chips (follow / next match) ---------- */
  .chip-stack{
    position:fixed;
    top:56px; right:14px;
    z-index:16;
    display:flex;
    flex-direction:column;
    align-items:flex-end;
    gap:8px;
    pointer-events:none;
  }
  .chip{
    pointer-events:auto;
    display:flex;
    align-items:center;
    gap:8px;
    background:var(--glass-panel);
    backdrop-filter:blur(10px);
    -webkit-backdrop-filter:blur(10px);
    border:1px solid var(--line);
    border-radius:100px;
    padding:7px 12px;
    font-size:12px;
    color:var(--text-dim);
    max-width:min(78vw, 320px);
  }
  .chip img{ width:16px; height:16px; border-radius:50%; object-fit:cover; flex:none; }
  #nextMatchFlag1,
  #nextMatchFlag2,
  #followFlag{ display:none; }
  .chip .chip-label{ white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
  .chip .chip-close{
    background:none; border:none; color:var(--text-faint);
    cursor:pointer; font-size:14px; line-height:1; padding:2px; flex:none;
  }
  .chip .chip-close:hover{ color:var(--text); }
  .chip .chip-notify{
    background:none; border:none; cursor:pointer; font-size:14px; line-height:1;
    padding:2px; flex:none; opacity:.85;
  }
  .chip .chip-notify:hover{ opacity:1; }
  .chip .chip-notify.is-on{ opacity:1; filter:drop-shadow(0 0 3px var(--gold)); }
  .chip .chip-notify.is-blocked{ opacity:.55; }
  #followChip{ display:none; border-color:rgba(226,184,74,.4); cursor:pointer; }
  #followChip .chip-label{ color:var(--gold); font-weight:600; }
  #followGroupStage{
    display:none;
    pointer-events:auto;
    width:min(78vw, 320px);
    background:var(--glass-panel);
    backdrop-filter:blur(10px);
    -webkit-backdrop-filter:blur(10px);
    border:1px solid rgba(226,184,74,.28);
    border-radius:14px;
    padding:10px;
  }
  #followGroupStage .group-stage-title{
    color:var(--gold);
    font-size:11px;
    font-weight:800;
    letter-spacing:.04em;
    text-transform:uppercase;
    margin:0 0 8px;
  }
  #followGroupStage .group-stage-list{
    display:flex;
    flex-direction:column;
    gap:6px;
  }
  #followGroupStage .group-stage-match{
    display:grid;
    grid-template-columns:18px minmax(0, 1fr) auto 16px;
    align-items:center;
    gap:8px;
    background:var(--panel-2);
    border:1px solid var(--line);
    border-radius:8px;
    padding:7px 8px;
    cursor:default;
  }
  #followGroupStage .group-stage-match img{
    width:18px;
    height:18px;
    border-radius:50%;
    object-fit:cover;
    border:1px solid var(--line);
  }
  #followGroupStage .group-stage-flag-fallback{
    width:18px;
    height:18px;
    border-radius:50%;
    display:flex;
    align-items:center;
    justify-content:center;
    background:var(--panel);
    border:1px solid var(--line);
    color:var(--text-faint);
    font-size:10px;
    font-weight:700;
  }
  #followGroupStage .group-stage-opponent{
    color:var(--text);
    font-size:11px;
    font-weight:600;
    overflow:hidden;
    text-overflow:ellipsis;
    white-space:nowrap;
  }
  #followGroupStage .group-stage-score{
    color:var(--text-dim);
    font-size:11px;
    font-variant-numeric:tabular-nums;
    font-weight:700;
  }
  #followGroupStage .group-stage-result{
    width:16px;
    height:16px;
    border-radius:50%;
    color:var(--result-text);
    display:flex;
    align-items:center;
    justify-content:center;
    font-size:9px;
    font-weight:800;
  }
  #nextMatchChip{ display:none; cursor:pointer; }
  #nextMatchChip .chip-countdown{ color:var(--text); font-variant-numeric:tabular-nums; font-weight:700; }
  #nextMatchChip.is-live .chip-countdown{ color:var(--live); }
  #nextMatchChip .chip-score{ color:var(--text); font-weight:700; font-variant-numeric:tabular-nums; }

  @media (max-width: 640px){
    .chip-stack{ top:104px; right:10px; }
    .chip{ max-width:min(70vw, 280px); font-size:11px; }
    #followGroupStage{ width:min(70vw, 280px); }
  }

  .action-stack{
    position:absolute;
    bottom:14px; left:14px;
    display:flex;
    flex-direction:column;
    gap:8px;
    z-index:15;
  }
  .icon-fab{
    padding:8px 14px;
    border-radius:100px;
    border:1px solid var(--line);
    background:var(--panel);
    color:var(--text);
    display:flex; align-items:center; gap:8px;
    cursor:pointer;
    font-size:12px;
    font-weight:600;
    white-space:nowrap;
  }
  .icon-fab:active{ border-color:var(--gold); }
  .icon-fab svg{ width:16px; height:16px; flex:none; }
  #installBtn{ display:none; }
  @media (max-width: 640px){
    #installBtn.show{ display:flex; }
  }

  .leaf-label{
    font-size:12px;
    font-weight:700;
    fill:var(--text);
    letter-spacing:.02em;
  }
  .leaf-label.empty{ fill:var(--text-faint); font-weight:500; }
  .leaf-label.eliminated{ fill:var(--text-faint); opacity:.65; }

  .edge{
    fill:none;
    stroke:var(--line);
    stroke-width:1.5;
  }
  .ring-guide{
    fill:none;
  }

  .center-badge{ pointer-events:auto; }
  @keyframes eggPop{
    0%{ transform:scale(1); }
    30%{ transform:scale(1.25) rotate(-6deg); }
    60%{ transform:scale(0.95) rotate(4deg); }
    100%{ transform:scale(1) rotate(0); }
  }
  .center-badge.egg-pop{ animation: eggPop .5s ease-out; transform-origin:center; }
  .center-badge.egg-pop circle{ stroke:var(--live); }
  .center-badge circle{ fill:var(--panel); stroke:var(--gold); stroke-width:1.5; }
  .center-badge text{ fill:var(--gold); font-weight:800; }

  /* ---------- Empty state ---------- */
  .empty-overlay{
    position:absolute; inset:0;
    display:flex; align-items:center; justify-content:center;
    text-align:center;
    padding:40px;
    pointer-events:none;
  }
  .empty-card{ max-width:360px; pointer-events:auto; }
  .empty-card h2{ margin:0 0 8px; font-size:16px; letter-spacing:.01em; }
  .empty-card p{ margin:0 0 16px; font-size:13px; color:var(--text-dim); line-height:1.55; }
  .empty-card button{
    background:var(--gold); color:var(--gold-contrast); border:none;
    padding:9px 16px; border-radius:9px; font-weight:700; font-size:13px; cursor:pointer;
  }

  /* ---------- Legend (floating bottom bar) ---------- */
  .bottom-bar{
    position:fixed;
    left:0; right:0; bottom:0;
    z-index:20;
    background:var(--bottom-bar-bg);
    backdrop-filter:blur(10px);
    -webkit-backdrop-filter:blur(10px);
    border-top:1px solid var(--line);
    padding:10px 16px calc(10px + env(safe-area-inset-bottom));
    display:flex;
    flex-direction:column;
    align-items:center;
    gap:2px;
  }
  .legend{
    display:flex;
    flex-wrap:wrap;
    justify-content:center;
    gap:14px;
  }
  .legend-item{
    display:flex; align-items:center; gap:6px;
    font-size:11px; color:var(--text-dim);
  }
  .legend-dot{ width:8px;height:8px;border-radius:50%; }
  .probability-note{
    color:var(--text-faint);
    font-size:10.5px;
    line-height:1.35;
    text-align:center;
    max-width:min(720px, 92vw);
  }

  /* ---------- Pinch / pan zoom ---------- */
  #zoomWrap{
    width:100%; height:100%;
    touch-action:none;
    cursor:grab;
  }
  #zoomWrap.dragging{ cursor:grabbing; }
  .zoom-controls{
    position:absolute;
    bottom:14px; right:14px;
    display:flex; flex-direction:column;
    gap:6px;
    z-index:15;
  }
  .zoom-controls button{
    width:34px; height:34px;
    border-radius:9px;
    border:1px solid var(--line);
    background:var(--panel);
    color:var(--text);
    font-size:17px;
    font-weight:700;
    cursor:pointer;
    display:flex; align-items:center; justify-content:center;
    line-height:1;
  }
  .zoom-controls button:active{ border-color:var(--gold); }
  .zoom-hint{
    position:absolute;
    top:82px; left:50%; transform:translateX(-50%);
    font-size:10.5px; color:var(--text-faint);
    background:var(--panel); border:1px solid var(--line);
    padding:4px 10px; border-radius:100px;
    pointer-events:none;
    opacity:0; transition:opacity .3s;
    z-index:15;
  }
  .zoom-hint.show{ opacity:1; }

  /* ---------- Tooltip ---------- */
  #tooltip{
    position:fixed;
    z-index:50;
    background:var(--panel);
    border:1px solid var(--line);
    border-radius:10px;
    padding:10px 12px;
    font-size:12px;
    color:var(--text);
    box-shadow:var(--tooltip-shadow);
    pointer-events:none;
    opacity:0;
    transform:translateY(4px);
    transition:opacity .1s, transform .1s;
    max-width:220px;
  }
  #tooltip.show{ opacity:1; transform:translateY(0); }
  #tooltip .tt-teams{ font-weight:700; margin-bottom:4px; }
  #tooltip .tt-meta{ color:var(--text-dim); }

  @media (prefers-reduced-motion: reduce){
    #tooltip{ transition:none; }
    .match-node.ping .node-bg{ animation:none; filter:drop-shadow(0 0 10px rgba(226,184,74,.9)); }
  }