:root {
  --bg: #0f1117;
  --panel: #1a1d27;
  --panel-2: #232735;
  --line: #2e3446;
  --ink: #e7eaf3;
  --ink-dim: #9aa3b8;
  --accent: #5b8cff;
  --accent-2: #8a5bff;
  --win: #2fbf71;
  --loss: #6b7280;
  --bye: #3a3f52;
  --danger: #e5484d;
  --shadow: 0 6px 24px rgba(0, 0, 0, .35);
  --card-w: 200px;
  --card-h: 58px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--ink);
  height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* Topbar */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 18px;
  background: linear-gradient(180deg, #191c26, #14161f);
  border-bottom: 1px solid var(--line);
  flex: 0 0 auto;
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand .logo { font-size: 22px; }
.brand h1 { font-size: 18px; margin: 0; letter-spacing: .2px; }
.top-actions { display: flex; align-items: center; gap: 8px; }
.top-actions .divider { width: 1px; height: 24px; background: var(--line); margin: 0 4px; }

/* Buttons */
.btn {
  background: var(--panel-2); color: var(--ink);
  border: 1px solid var(--line); border-radius: 9px;
  padding: 8px 12px; font-size: 13px; cursor: pointer;
  transition: background .15s, border-color .15s, transform .05s; white-space: nowrap;
}
.btn:hover { background: #2b3040; border-color: #3a4159; }
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: .45; cursor: not-allowed; }
.btn.small { padding: 6px 10px; font-size: 12px; }
.btn.full { width: 100%; }
.btn.primary { background: var(--accent); border-color: transparent; color: #fff; font-weight: 600; }
.btn.primary:hover { background: #4a7cf0; }
.btn.danger { color: var(--danger); }
.btn.danger:hover { background: rgba(229,72,77,.14); border-color: var(--danger); }

/* Layout */
.layout { flex: 1 1 auto; display: flex; min-height: 0; }

/* Sidebar */
.sidebar {
  width: 300px; flex: 0 0 auto;
  background: var(--panel); border-right: 1px solid var(--line);
  padding: 16px; overflow-y: auto;
  display: flex; flex-direction: column; gap: 18px;
}
.panel h2 {
  font-size: 12px; text-transform: uppercase; letter-spacing: 1px;
  color: var(--ink-dim); margin: 0 0 10px;
}

/* Segmented control */
.seg { display: flex; background: var(--panel-2); border: 1px solid var(--line); border-radius: 10px; padding: 3px; gap: 3px; }
.seg.wrap { flex-wrap: wrap; }
.seg.wrap .seg-btn { flex: 1 1 44%; }
.seg-btn {
  flex: 1; border: none; background: transparent; color: var(--ink-dim);
  padding: 8px 6px; border-radius: 7px; font-size: 12px; cursor: pointer;
  transition: background .15s, color .15s;
}
.seg-btn.active { background: var(--accent); color: #fff; font-weight: 600; }

/* Inputs */
.count-row { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; }
.count-row label { font-size: 13px; color: var(--ink-dim); min-width: 44px; }
.count-row input[type=number] {
  width: 64px; background: var(--panel-2); border: 1px solid var(--line);
  border-radius: 8px; color: var(--ink); padding: 7px 8px; font-size: 14px;
}
.select, .text-input {
  background: var(--panel-2); border: 1px solid var(--line); border-radius: 8px;
  color: var(--ink); padding: 7px 8px; font-size: 13px; font-family: inherit;
}
.select { cursor: pointer; }
.select.full, .text-input { width: 100%; }
.text-input { margin-bottom: 8px; }

textarea {
  width: 100%; background: var(--panel-2); border: 1px solid var(--line);
  border-radius: 10px; color: var(--ink); padding: 10px; font-size: 13px;
  resize: vertical; font-family: inherit; margin-bottom: 8px;
}

.row-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.saved-row { display: flex; gap: 6px; margin-top: 8px; align-items: center; }
.saved-row .select { flex: 1; min-width: 0; }
.file-btn { display: inline-flex; align-items: center; cursor: pointer; }

.hint { font-size: 11px; color: var(--ink-dim); margin: 6px 0 0; line-height: 1.4; }
.hint.inline { margin: 0; }

.legend ul { margin: 0; padding-left: 16px; font-size: 12px; color: var(--ink-dim); line-height: 1.7; }
.legend b { color: var(--ink); }

/* Stage / pan-zoom */
.stage {
  flex: 1 1 auto; position: relative; overflow: hidden;
  cursor: grab; touch-action: none;
  background: radial-gradient(circle at 1px 1px, rgba(255,255,255,.04) 1px, transparent 0);
  background-size: 22px 22px;
}
.stage.grabbing { cursor: grabbing; }
.content {
  position: absolute; top: 0; left: 0;
  transform-origin: 0 0; padding: 30px;
  display: inline-block; min-width: 200px;
}

.bracket { position: relative; }
.connectors { position: absolute; top: 0; left: 0; pointer-events: none; overflow: visible; }
.connectors path { stroke: var(--line); stroke-width: 2; fill: none; }

.round-label {
  position: absolute; font-size: 11px; text-transform: uppercase;
  letter-spacing: 1px; color: var(--ink-dim); font-weight: 600;
}

/* Match card */
.match {
  position: absolute; width: var(--card-w); background: var(--panel);
  border: 1px solid var(--line); border-radius: 10px; overflow: hidden; box-shadow: var(--shadow);
}
.match.gf { border-color: var(--accent-2); }
.match-clear {
  position: absolute; top: 3px; right: 3px; z-index: 3;
  width: 16px; height: 16px; padding: 0; line-height: 14px; text-align: center;
  border: none; border-radius: 4px; background: transparent; color: var(--ink-dim);
  font-size: 13px; cursor: pointer;
}
.match-clear:hover { background: var(--panel-2); color: var(--danger); }
.slot {
  display: flex; align-items: center; gap: 8px; padding: 8px 10px;
  border-bottom: 1px solid var(--line); transition: background .12s; min-height: 29px;
}
.slot:last-child { border-bottom: none; }
.slot .seed { font-size: 10px; color: var(--ink-dim); width: 16px; text-align: center; flex: 0 0 auto; }
.slot .name { font-size: 13px; flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; cursor: pointer; }
.slot .score {
  width: 26px; flex: 0 0 auto; text-align: center; font-size: 12px; font-variant-numeric: tabular-nums;
  background: var(--panel-2); border: 1px solid var(--line); border-radius: 5px;
  color: var(--ink); padding: 2px 0;
}
.slot .score:focus { outline: 1px solid var(--accent); border-color: var(--accent); }
.slot.winner { background: rgba(47,191,113,.14); }
.slot.winner .name { color: var(--win); font-weight: 600; }
.slot.loser .name { color: var(--loss); text-decoration: line-through; opacity: .7; }
.slot.empty .name, .slot.pending .name { color: var(--ink-dim); font-style: italic; cursor: default; }
.slot.pending .name { opacity: .8; }
.slot.bye .name { color: var(--ink-dim); font-style: italic; opacity: .6; cursor: default; }
.slot.draggable .name { cursor: grab; }
.slot.drag-over { background: rgba(91,140,255,.22); outline: 1px dashed var(--accent); outline-offset: -2px; }
.slot.dragging { opacity: .4; }

/* Schedule (round robin / swiss) */
.rr-round { margin-bottom: 22px; }
.rr-round h3 { font-size: 12px; text-transform: uppercase; letter-spacing: 1px; color: var(--ink-dim); margin: 0 0 10px; }
.rr-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 12px; max-width: 1000px; }
.rr-card { position: relative; }
.bye-note {
  display: flex; align-items: center; padding: 10px 14px; font-size: 13px;
  background: var(--panel); border: 1px dashed var(--line); border-radius: 10px; color: var(--ink-dim);
}
.empty-note { color: var(--ink-dim); font-size: 14px; max-width: 480px; line-height: 1.6; }
.section-title { font-size: 13px; text-transform: uppercase; letter-spacing: 1px; color: var(--accent); margin: 8px 0 18px; }

/* Groups */
.groups-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 16px; max-width: 1200px; margin-bottom: 26px; }
.group-box { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 12px; }
.group-sched { display: grid; gap: 8px; margin-top: 10px; }
.group-sched .match { position: static; box-shadow: none; }

/* Standings */
.standings { max-width: 560px; }
.standings h3 { font-size: 12px; text-transform: uppercase; letter-spacing: 1px; color: var(--ink-dim); margin: 0 0 10px; }
.standings.compact h3 { margin-bottom: 8px; }
.standings table { width: 100%; border-collapse: collapse; background: var(--panel); border-radius: 10px; overflow: hidden; }
.standings th, .standings td { padding: 8px 12px; text-align: left; font-size: 13px; border-bottom: 1px solid var(--line); }
.standings.compact th, .standings.compact td { padding: 6px 10px; font-size: 12px; }
.standings th { color: var(--ink-dim); font-size: 11px; text-transform: uppercase; letter-spacing: .5px; }
.standings td.num, .standings th.num { text-align: center; width: 40px; }
.standings td.rank, .standings th.rank { text-align: center; width: 30px; color: var(--ink-dim); }
.standings tr:last-child td { border-bottom: none; }
.standings tr.qual td { background: rgba(47,191,113,.12); }
.standings tr.qual td.rank { color: var(--win); font-weight: 700; }

.standings-wrap { margin-top: 12px; }

/* Zoom controls */
.zoom-controls {
  position: absolute; left: 16px; bottom: 16px; z-index: 20;
  display: flex; align-items: center; gap: 2px;
  background: var(--panel-2); border: 1px solid var(--line); border-radius: 10px; padding: 3px;
  box-shadow: var(--shadow);
}
.zoom-controls button {
  width: 30px; height: 30px; border: none; background: transparent; color: var(--ink);
  font-size: 16px; cursor: pointer; border-radius: 7px;
}
.zoom-controls button:hover { background: var(--panel); }
.zoom-controls #zoom-pct { font-size: 12px; color: var(--ink-dim); min-width: 42px; text-align: center; font-variant-numeric: tabular-nums; }

/* Minimap */
.minimap {
  position: absolute; right: 16px; bottom: 16px; z-index: 20;
  border: 1px solid var(--line); border-radius: 10px; box-shadow: var(--shadow);
  cursor: pointer; background: #14161f;
}

.slot .score-static {
  width: 26px; flex: 0 0 auto; text-align: center; font-size: 12px; font-variant-numeric: tabular-nums;
  color: var(--ink-dim);
}
.slot.winner .score-static { color: var(--win); font-weight: 600; }
.btn.share { margin-top: 8px; }

/* Read-only shared view */
body.read-only .sidebar { display: none; }
body.read-only #btn-randomise,
body.read-only #btn-reset,
body.read-only .top-actions .divider { display: none; }
.ro-banner {
  position: absolute; top: 14px; left: 50%; transform: translateX(-50%); z-index: 30;
  display: flex; align-items: center; gap: 10px;
  background: var(--panel-2); border: 1px solid var(--accent); border-radius: 999px;
  padding: 7px 7px 7px 16px; box-shadow: var(--shadow); font-size: 13px; color: var(--ink);
}
.ro-banner .dot { font-size: 14px; }

.hidden { display: none !important; }

/* Toast */
.toast {
  position: fixed; bottom: 24px; left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--panel-2); border: 1px solid var(--line); color: var(--ink);
  padding: 11px 18px; border-radius: 10px; font-size: 13px; box-shadow: var(--shadow);
  opacity: 0; pointer-events: none; transition: opacity .2s, transform .2s; z-index: 100;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* Scrollbars */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: #2e3446; border-radius: 6px; }
::-webkit-scrollbar-track { background: transparent; }