:root {
  --bg: #f4f6f8;
  --surface: #ffffff;
  --border: #dde3ea;
  --text: #1c2430;
  --muted: #5f6b7a;
  --primary: #1f6f5c;
  --primary-soft: #e3f1ec;
  --danger: #b3261e;
  --gold: #b8860b;
  --gold-bg: #fff4d1;
  --silver: #5f6b7a;
  --silver-bg: #eef1f4;
  --bronze: #9a5a2c;
  --bronze-bg: #f8e7da;
  --radius: 10px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: 'Sarabun', system-ui, sans-serif;
  font-size: 16px;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

button, input, select { font: inherit; color: inherit; }

/* ---------- Top bar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 20;
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between;
  gap: 8px 16px; padding: 10px 16px;
  background: var(--surface); border-bottom: 1px solid var(--border);
}
.brand { display: flex; align-items: center; gap: 10px; min-width: 0; }
.brand-mark { font-size: 26px; }
.brand-title { font-weight: 700; font-size: 18px; }
.brand-sub { color: var(--muted); font-size: 13px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 60vw; }
.tabs { display: flex; gap: 4px; background: var(--bg); padding: 4px; border-radius: 999px; }
.tab {
  border: 0; background: transparent; padding: 6px 16px; border-radius: 999px;
  cursor: pointer; font-weight: 500; color: var(--muted);
}
.tab.active { background: var(--surface); color: var(--primary); box-shadow: 0 1px 3px rgba(0,0,0,.12); }

.container { max-width: 1100px; margin: 0 auto; padding: 16px 16px 8px; }

.credit {
  max-width: 1100px; margin: 0 auto; padding: 16px 16px 24px;
  text-align: center; color: var(--muted); font-size: 14px; border-top: 1px solid var(--border);
}
.credit strong { color: var(--text); }
/* หน้ากรอกคะแนนมีแถบคะแนนรวมติดด้านล่าง เว้นที่ไม่ให้บังส่วนท้าย */
body.has-totalbar .credit { padding-bottom: 110px; }

/* ---------- Generic ---------- */
.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 16px; margin-bottom: 16px;
}
.card h2 { margin: 0 0 12px; font-size: 18px; }
.card h3 { margin: 0 0 8px; font-size: 16px; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.row { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.spacer { flex: 1; }

.btn {
  display: inline-flex; align-items: center; gap: 6px;
  border: 1px solid var(--border); background: var(--surface);
  padding: 8px 14px; border-radius: 8px; cursor: pointer; font-weight: 500;
}
.btn:hover { border-color: var(--primary); }
.btn.primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn.primary:hover { filter: brightness(1.08); }
.btn.danger { color: var(--danger); }
.btn.danger:hover { border-color: var(--danger); }
.btn.sm { padding: 4px 10px; font-size: 14px; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

.field { display: flex; flex-direction: column; gap: 4px; margin-bottom: 10px; }
.field label { font-size: 14px; color: var(--muted); }
.input, select.input {
  width: 100%; padding: 8px 10px; border: 1px solid var(--border);
  border-radius: 8px; background: var(--surface);
}
.input:focus { outline: 2px solid var(--primary-soft); border-color: var(--primary); }

.list-row { display: grid; grid-template-columns: 32px 1fr auto; gap: 8px; align-items: center; margin-bottom: 8px; }
.list-row.team { grid-template-columns: 32px 1fr 1fr auto; }
.list-row .idx { color: var(--muted); text-align: center; font-weight: 600; }

/* ---------- Scoring ---------- */
.pick { display: grid; grid-template-columns: 1fr; gap: 12px; }
.pills { display: flex; flex-wrap: wrap; gap: 6px; }
.pill {
  border: 1px solid var(--border); background: var(--surface);
  padding: 6px 12px; border-radius: 999px; cursor: pointer; font-weight: 500;
  display: inline-flex; align-items: center; gap: 6px;
}
.pill .meta { font-size: 12px; color: var(--muted); font-weight: 400; }
.pill.active { background: var(--primary); border-color: var(--primary); color: #fff; }
.pill.active .meta { color: #d6efe7; }
.pill.done:not(.active) { border-color: var(--primary); }
.pill .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--border); }
.pill.done .dot { background: #2e9e7a; }
.pill.partial .dot { background: #e0a100; }

.section { margin-bottom: 16px; }
.section-head {
  display: flex; justify-content: space-between; align-items: baseline; gap: 12px;
  padding: 10px 14px; background: var(--primary-soft); border-radius: var(--radius) var(--radius) 0 0;
  border: 1px solid var(--border); border-bottom: 0;
}
.section-head h3 { margin: 0; font-size: 16px; }
.section-head .sub { font-weight: 700; white-space: nowrap; color: var(--primary); }
.section-body { background: var(--surface); border: 1px solid var(--border); border-radius: 0 0 var(--radius) var(--radius); }
.group-title { padding: 10px 14px 0; font-weight: 600; }
.item { padding: 10px 14px; border-top: 1px solid var(--border); display: grid; grid-template-columns: 1fr auto; gap: 8px 16px; align-items: center; }
.group-title + .item { border-top: 0; }
.item:first-child { border-top: 0; }
.item-title { font-weight: 500; }
.item-title .code { color: var(--muted); margin-right: 4px; }
.item-details { margin: 2px 0 0; padding-left: 18px; color: var(--muted); font-size: 14px; }
.item-note { font-size: 13px; color: var(--bronze); margin-top: 2px; }
.item.empty { background: #fffdf4; }

.score-ctl { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; justify-content: flex-end; }
.chips { display: flex; gap: 4px; flex-wrap: wrap; }
.chip {
  min-width: 40px; height: 36px; padding: 0 8px; border-radius: 8px;
  border: 1px solid var(--border); background: var(--surface); cursor: pointer; font-weight: 600;
}
.chip:hover { border-color: var(--primary); }
.chip.on { background: var(--primary); border-color: var(--primary); color: #fff; }
.score-input { width: 70px; text-align: center; padding: 6px; }
.score-max { color: var(--muted); font-size: 14px; white-space: nowrap; }

@media (max-width: 720px) {
  .item { grid-template-columns: 1fr; }
  .score-ctl { justify-content: flex-start; }
  .list-row.team { grid-template-columns: 32px 1fr auto; }
  .list-row.team .school { grid-column: 2 / 3; }
  .brand-sub { max-width: 90vw; }
  .topbar { padding: 8px 12px; gap: 6px; }
  .brand-mark { font-size: 20px; }
  .brand-title { font-size: 14px; line-height: 1.35; }
  .brand-sub { display: none; }
  .tabs { width: 100%; justify-content: space-between; }
  .tab { flex: 1; padding: 5px 8px; }
  body.has-totalbar .credit { padding-bottom: 150px; }
}

.totalbar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 15;
  background: var(--surface); border-top: 1px solid var(--border);
  box-shadow: 0 -2px 10px rgba(0,0,0,.06);
}
.totalbar-inner { max-width: 1100px; margin: 0 auto; padding: 10px 16px; display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.totalbar .big { font-size: 22px; font-weight: 700; }
.progress { flex: 1; min-width: 120px; height: 8px; background: var(--bg); border-radius: 99px; overflow: hidden; }
.progress > span { display: block; height: 100%; background: var(--primary); transition: width .2s; }

/* ---------- Summary ---------- */
.table-wrap { overflow-x: auto; }
table.grid { width: 100%; border-collapse: collapse; font-size: 15px; }
table.grid th, table.grid td { border: 1px solid var(--border); padding: 8px 10px; text-align: center; }
table.grid th { background: var(--bg); font-weight: 600; }
table.grid td.left, table.grid th.left { text-align: left; }
table.grid td.incomplete { color: #a06a00; }
.badge { display: inline-block; padding: 2px 10px; border-radius: 999px; font-weight: 600; font-size: 14px; white-space: nowrap; }
.badge.gold { background: var(--gold-bg); color: var(--gold); }
.badge.silver { background: var(--silver-bg); color: var(--silver); }
.badge.bronze { background: var(--bronze-bg); color: var(--bronze); }
.badge.none { background: var(--bg); color: var(--muted); }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 10px; margin-bottom: 16px; }
.stat { border: 1px solid var(--border); border-radius: var(--radius); padding: 10px 14px; background: var(--surface); }
.stat .n { font-size: 26px; font-weight: 700; }

/* ---------- Toast ---------- */
.toast {
  position: fixed; left: 50%; bottom: 84px; transform: translateX(-50%) translateY(20px);
  background: #1c2430; color: #fff; padding: 8px 16px; border-radius: 8px;
  opacity: 0; pointer-events: none; transition: .2s; z-index: 50; font-size: 14px;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ---------- Save / edit state ---------- */
.banner { padding: 10px 14px; border-radius: var(--radius); margin-bottom: 12px; font-size: 15px; border: 1px solid; }
.banner.saved { background: var(--primary-soft); border-color: #b5dccd; color: #17513f; }
.banner.draft { background: #fff7e0; border-color: #f0d68a; color: #7a5600; }
.is-locked .item { background: #fafbfc; }
.is-locked .item.empty { background: #fafbfc; }
.chip:disabled, .score-input:disabled { cursor: not-allowed; opacity: .55; }
.chip.on:disabled { opacity: 1; }
td .ok { color: #1f6f5c; }
td .warn { color: #a06a00; }