:root {
  --bg: #dde2e8;
  --panel: #ffffff;
  --panel-head: #eef0f4;
  --border: #c8cdd6;
  --border-strong: #adb3bf;
  --text: #0f172a;
  --muted: #5b6472;
  --primary: #0f172a;
  --primary-hover: #1e293b;
  --accent: #1d4ed8;
  --danger: #b91c1c;
  --good: #047857;
  --lead-bg: #fde68a;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font: 14px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

/* Topbar */
.topbar { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 14px 24px; background: var(--panel); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 5; }
.brand { font-weight: 700; font-size: 16px; letter-spacing: -0.01em; }
.brand-sub { font-weight: 400; color: var(--muted); margin-left: 6px; font-size: 13px; }
.topbar-tools { display: flex; align-items: center; gap: 10px; }

/* Main */
main { max-width: 1180px; margin: 0 auto; padding: 20px 24px 80px; }

/* Form elements */
input[type="text"], input[type="number"], select {
  font: inherit;
  color: var(--text);
  background: var(--panel);
  border: 1px solid var(--border-strong);
  padding: 6px 10px;
  border-radius: 3px;
  outline: none;
}
input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button { -webkit-appearance: none; margin: 0; }
input[type="number"] { appearance: textfield; }
input:focus, select:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(37,99,235,0.15); }

select { padding-right: 28px; appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='10' height='6'><path fill='%23111827' d='M0 0l5 6 5-6z'/></svg>");
  background-repeat: no-repeat; background-position: right 10px center;
}

/* Buttons */
.btn { font: inherit; font-weight: 500; background: var(--panel); color: var(--text); border: 1px solid var(--border-strong); padding: 6px 12px; border-radius: 3px; cursor: pointer; line-height: 1.4; }
.btn:hover:not(:disabled) { border-color: var(--text); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }
.btn-primary { background: var(--primary); color: #fff; border-color: var(--primary); }
.btn-primary:hover:not(:disabled) { background: var(--primary-hover); border-color: var(--primary-hover); }
.btn-ghost { background: transparent; border-color: transparent; color: var(--muted); padding: 6px 8px; }
.btn-ghost:hover:not(:disabled) { color: var(--text); border-color: var(--border-strong); }
.btn-danger { color: var(--danger); }
.btn-danger:hover:not(:disabled) { border-color: var(--danger); color: var(--danger); }
.btn-mini { padding: 3px 8px; font-size: 12px; }

.link { color: var(--muted); text-decoration: none; padding: 4px 8px; font-size: 13px; border-radius: 3px; }
.link:hover { color: var(--text); background: var(--bg); }

/* Status banner */
#status { position: fixed; top: 12px; left: 50%; transform: translateX(-50%); background: var(--primary); color: #fff; padding: 8px 14px; border-radius: 4px; font-size: 13px; z-index: 100; box-shadow: 0 4px 12px rgba(0,0,0,0.15); max-width: 90%; }
#status.error { background: var(--danger); }
#status.ok { background: var(--good); }

/* Tray */
.tray { background: var(--panel); border: 1px solid var(--border-strong); border-radius: 0; padding: 18px 20px; margin-bottom: 16px; }
.tray h3 { margin: 0 0 12px; font-size: 16px; font-weight: 600; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.tray label { display: flex; flex-direction: column; gap: 4px; font-size: 12px; color: var(--muted); margin-bottom: 8px; font-weight: 500; }
.tray label.full input { width: 100%; }
.form-grid input { width: 100%; }
.tray .hint, .hint { font-size: 12px; color: var(--muted); margin: 4px 0 10px; }
.form-table { width: 100%; border-collapse: collapse; margin: 6px 0 12px; }
.form-table th { text-align: left; font-size: 12px; color: var(--muted); padding: 6px 4px; font-weight: 500; }
.form-table th.num { text-align: right; }
.form-table td { padding: 4px; }
.form-table td input { width: 100%; }
.form-table td:last-child { width: 100px; }
.form-table td:last-child input { text-align: right; }

.actions { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.actions.right { justify-content: flex-end; }
.actions label.inline { flex-direction: row; align-items: center; gap: 6px; margin: 0; }
.actions label.inline select { margin-left: 4px; }

/* Empty */
.empty { background: var(--panel); border: 1px solid var(--border-strong); border-radius: 0; padding: 56px 24px; text-align: center; color: var(--muted); }
.empty h2 { margin: 0 0 8px; color: var(--text); font-size: 18px; }
.empty p { margin: 0; }

/* Meta bar */
.meta-bar { display: flex; align-items: center; gap: 20px; padding: 12px 16px; background: var(--panel); border: 1px solid var(--border-strong); border-radius: 0; margin-bottom: 16px; flex-wrap: wrap; }
.meta-pair { display: flex; align-items: baseline; gap: 6px; }
.meta-pair b { font-size: 15px; font-weight: 600; font-variant-numeric: tabular-nums; }
.meta-pair span { font-size: 12px; color: var(--muted); }
.meta-spacer { flex: 1; }

/* Three-up */
.three-up { display: grid; grid-template-columns: 1.1fr 1fr 1fr; gap: 16px; align-items: start; }

.panel { background: var(--panel); border: 1px solid var(--border-strong); border-radius: 0; overflow: hidden; display: flex; flex-direction: column; }
.panel-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 10px 14px; border-bottom: 1px solid var(--border-strong); background: var(--panel-head); }
.panel-head h2 { margin: 0; font-size: 13px; font-weight: 600; letter-spacing: 0.01em; text-transform: uppercase; }
.panel-head select { padding: 4px 24px 4px 8px; font-size: 12px; }
.panel-foot { padding: 12px 14px; border-top: 1px solid var(--border-strong); display: flex; gap: 8px; flex-wrap: wrap; }
.panel > #matches, .panel > #pred-out, .panel > .standings { flex: 1; }

/* Standings */
.standings { width: 100%; border-collapse: collapse; font-variant-numeric: tabular-nums; }
.standings th { font-size: 11px; text-transform: uppercase; letter-spacing: 0.04em; color: var(--muted); font-weight: 600; text-align: left; padding: 8px 6px; border-bottom: 1px solid var(--border-strong); background: var(--panel-head); }
.standings th.num, .standings td.num { text-align: right; }
.standings th:first-child, .standings td:first-child { padding-left: 14px; width: 28px; color: var(--muted); }
.standings th:last-child, .standings td:last-child { padding-right: 14px; }
.standings td { padding: 9px 6px; border-bottom: 1px solid var(--border); font-size: 13px; }
.standings tbody tr:last-child td { border-bottom: 0; }
.standings td.team { font-weight: 600; }
.standings td.pts { font-weight: 700; }
.standings tr.lead td { background: var(--lead-bg); }
.standings tr.lead td:first-child { color: var(--text); font-weight: 700; }

/* Week nav */
.week-nav { display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--muted); }
#week-label { font-weight: 600; color: var(--text); min-width: 56px; text-align: center; }

/* Matches list */
#matches { padding: 6px 0; min-height: 80px; }
.match-row { display: grid; grid-template-columns: 1fr 86px 1fr; align-items: center; gap: 8px; padding: 8px 14px; font-size: 14px; }
.match-row + .match-row { border-top: 1px solid var(--border-strong); }
.match-row .h { text-align: right; }
.match-row .a { text-align: left; }
.match-row .sc { text-align: center; font-variant-numeric: tabular-nums; font-weight: 600; color: var(--text); }
.match-row.played { cursor: pointer; }
.match-row.played:hover { background: #fafbfc; }
.match-row.played:hover .sc { color: var(--accent); }
.match-row.played:hover .edit-tag { opacity: 1; }
.match-row .edit-tag { font-size: 10px; color: var(--muted); opacity: 0; text-align: center; text-transform: uppercase; letter-spacing: 0.05em; }
.match-row.unplayed .sc { color: var(--muted); font-weight: 400; }

/* Prediction */
#pred-out { padding: 12px 14px; min-height: 200px; }
#pred-out.muted { display: flex; align-items: center; justify-content: center; color: var(--muted); font-size: 13px; text-align: center; }
.pred-row { display: grid; grid-template-columns: 18px 1fr 46px; align-items: center; gap: 8px; padding: 6px 0; font-size: 13px; }
.pred-row .ppos { color: var(--muted); font-size: 12px; }
.pred-row .pname { font-weight: 500; }
.pred-row .ppct { text-align: right; font-variant-numeric: tabular-nums; font-weight: 600; }
.pred-row .pbar { grid-column: 1 / -1; height: 4px; background: var(--border); border-radius: 2px; overflow: hidden; margin-top: 1px; }
.pred-row .pbar span { display: block; height: 100%; background: var(--accent); }
.pred-row.lead .pbar span { background: var(--good); }
.pred-meta { display: flex; gap: 12px; flex-wrap: wrap; font-size: 11px; color: var(--muted); padding-top: 10px; margin-top: 6px; border-top: 1px solid var(--border); }
.pred-meta .stale { color: var(--danger); font-weight: 600; }

/* Detail table */
.pred-detail { width: 100%; border-collapse: collapse; margin-top: 12px; font-size: 12px; font-variant-numeric: tabular-nums; }
.pred-detail th { color: var(--muted); font-weight: 500; text-align: left; padding: 4px 6px; border-bottom: 1px solid var(--border); font-size: 11px; text-transform: uppercase; letter-spacing: 0.04em; }
.pred-detail th.num, .pred-detail td.num { text-align: right; }
.pred-detail td { padding: 5px 6px; border-bottom: 1px solid var(--border); }
.pred-detail tr:last-child td { border-bottom: 0; }

/* Advanced (what-if + history) */
.advanced { background: var(--panel); border: 1px solid var(--border-strong); border-radius: 0; margin-top: 16px; }
.advanced > summary { position: relative; padding: 12px 16px 12px 34px; cursor: pointer; font-weight: 600; font-size: 12px; letter-spacing: 0.04em; text-transform: uppercase; user-select: none; list-style: none; }
.advanced > summary::-webkit-details-marker { display: none; }
.advanced > summary::before { content: '›'; position: absolute; left: 18px; top: 50%; transform: translateY(-50%); color: var(--muted); transition: transform 0.15s; line-height: 1; font-size: 16px; }
.advanced[open] > summary::before { transform: translateY(-50%) rotate(90deg); }
.adv-body { padding: 4px 16px 16px 34px; }
.adv-body .hint { margin-top: 0; }
.adv-body .actions { padding: 8px 0; }

/* What-if table */
.wi-table { width: 100%; border-collapse: collapse; margin: 6px 0; }
.wi-table th { font-size: 11px; text-transform: uppercase; letter-spacing: 0.04em; color: var(--muted); padding: 8px 6px; text-align: left; border-bottom: 1px solid var(--border); font-weight: 600; }
.wi-table th.center { text-align: center; }
.wi-table td { padding: 6px; border-bottom: 1px solid var(--border); font-size: 13px; }
.wi-table tbody tr:last-child td { border-bottom: 0; }
.wi-table td.h { text-align: right; font-weight: 500; }
.wi-table td.a { text-align: left; font-weight: 500; }
.wi-table td.sc { text-align: center; white-space: nowrap; }
.wi-table td.sc input { width: 44px; text-align: center; padding: 4px 6px; }
.wi-table td.sc .dash { padding: 0 6px; color: var(--muted); }
.wi-table td.wk { text-align: center; color: var(--muted); font-size: 12px; }

/* What-if result */
#whatif-out { padding: 0; }
#whatif-out.muted { color: var(--muted); font-size: 13px; padding: 8px 0 0; }
#whatif-out h4 { margin: 14px 0 6px; font-size: 13px; font-weight: 600; }

/* History */
#history { padding: 0; }
#history.muted { color: var(--muted); font-size: 13px; padding: 0; }
.run-row { display: grid; grid-template-columns: 50px 1fr 80px 80px 70px auto; gap: 12px; padding: 7px 0; border-bottom: 1px dashed var(--border); font-size: 13px; cursor: pointer; align-items: center; font-variant-numeric: tabular-nums; }
.run-row:hover { color: var(--accent); }
.run-row .stale { color: var(--danger); font-weight: 600; }
.run-row .fresh { color: var(--good); }

/* Edit modal */
dialog#edit-modal { border: 1px solid var(--border-strong); border-radius: 4px; padding: 20px 22px; min-width: 320px; box-shadow: 0 20px 60px rgba(0,0,0,0.2); }
dialog#edit-modal::backdrop { background: rgba(15, 23, 42, 0.4); }
dialog#edit-modal h3 { margin: 0 0 4px; font-size: 16px; font-weight: 600; }
dialog#edit-modal .score-edit { display: flex; align-items: center; justify-content: center; gap: 10px; margin: 18px 0; }
dialog#edit-modal .score-edit input { width: 72px; text-align: center; font-size: 18px; padding: 8px; font-variant-numeric: tabular-nums; }
dialog#edit-modal .score-edit .dash { font-size: 18px; color: var(--muted); }

/* Responsive */
@media (max-width: 960px) {
  .three-up { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  main { padding: 14px 14px 60px; }
  .topbar { padding: 12px 14px; }
  .meta-bar { gap: 14px; }
  .form-grid { grid-template-columns: 1fr; }
}