:root {
  color-scheme: dark;
  --bg: #06130f;
  --surface: #0b2019;
  --surface-2: #102a21;
  --line: rgba(211, 255, 221, 0.13);
  --text: #f4fff7;
  --muted: #9ab4a6;
  --lime: #caff4d;
  --blue: #69c8ff;
  --orange: #ffab5c;
  --danger: #ff8b82;
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.24);
  font-family: Inter, "Noto Sans JP", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-width: 320px;
  color: var(--text);
  background:
    radial-gradient(circle at 78% -5%, rgba(86, 192, 122, 0.17), transparent 31rem),
    linear-gradient(180deg, #071a15 0, var(--bg) 28rem);
}

button, input, select { font: inherit; }

button, summary, select, input[type="radio"], input[type="checkbox"] { cursor: pointer; }

button:focus-visible, input:focus-visible, select:focus-visible, summary:focus-visible {
  outline: 3px solid rgba(202, 255, 77, 0.38);
  outline-offset: 2px;
}

.site-header {
  width: min(1120px, calc(100% - 32px));
  height: 76px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
}

.brand {
  color: inherit;
  display: inline-flex;
  align-items: center;
  gap: 11px;
  text-decoration: none;
}

.brand-mark {
  width: 39px;
  height: 39px;
  display: grid;
  place-items: center;
  color: #0b1608;
  background: var(--lime);
  border-radius: 11px;
  font-weight: 950;
  font-size: 20px;
  transform: rotate(-4deg);
}

.brand strong, .brand small { display: block; line-height: 1.02; letter-spacing: .09em; }
.brand strong { font-size: 16px; }
.brand small { color: var(--muted); font-size: 8px; margin-top: 4px; }

.server-badge {
  display: flex;
  align-items: center;
  gap: 7px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .12em;
}

.server-badge i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--lime);
  box-shadow: 0 0 10px rgba(202, 255, 77, .7);
}

main { width: min(1120px, calc(100% - 32px)); margin: 0 auto; }

.hero { padding: 34px 0 28px; max-width: 820px; }
.eyebrow, .section-title > div > span { margin: 0; color: var(--lime); font-size: 11px; font-weight: 900; letter-spacing: .16em; }
.hero h1 { margin: 7px 0 10px; font-size: clamp(31px, 5vw, 45px); line-height: 1.08; letter-spacing: -.045em; }
.hero h1 em { color: var(--lime); font-style: normal; }
.hero > p:last-child {  margin: 0; color: var(--muted); font-size: 15px; line-height: 1.75; }

.results-panel, .panel {
  border: 1px solid var(--line);
  background: linear-gradient(145deg, rgba(18, 48, 38, .82), rgba(8, 29, 22, .94));
  border-radius: 24px;
  box-shadow: var(--shadow);
}

.results-panel { padding: 30px; margin-bottom: 24px; }
.panel { padding: 34px; margin-top: 24px; }

.section-title { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.section-title h2 { margin: 5px 0 0; font-size: clamp(23px, 4vw, 32px); letter-spacing: -.03em; }
.compact-title h2 { font-size: 24px; }
.result-state { color: var(--muted); font-size: 12px; }
.result-state.dirty { color: var(--orange); }

.result-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-top: 24px; }
.result-card { position: relative; overflow: hidden; min-height: 152px; padding: 21px; background: rgba(4, 17, 13, .64); border: 1px solid var(--line); border-radius: 17px; }
.result-card::before { content: ""; position: absolute; width: 84px; height: 84px; top: -42px; right: -20px; border-radius: 50%; background: currentColor; opacity: .08; }
.result-card > span { display: block; color: var(--muted); font-size: 13px; font-weight: 750; }
.result-card strong { display: block; margin: 17px 0 20px; color: var(--text); font-size: clamp(30px, 4vw, 42px); letter-spacing: -.045em; }
.result-card.lime { color: var(--lime); }
.result-card.blue { color: var(--blue); }
.result-card.orange { color: var(--orange); }
.result-card.white { color: #fff; }
.result-card.featured { border-color: rgba(202, 255, 77, .4); background: linear-gradient(145deg, rgba(202, 255, 77, .11), rgba(4, 17, 13, .66)); }
.meter { height: 4px; overflow: hidden; background: rgba(255,255,255,.1); border-radius: 99px; }
.meter i { display: block; width: 0; height: 100%; background: currentColor; border-radius: inherit; transition: width .5s ease; }
.status-message { min-height: 1.4em; margin: 18px 2px 0; color: var(--muted); font-size: 13px; }
.status-message.error { color: var(--danger); }

.section-help { margin: 13px 0 25px; color: var(--muted); font-size: 14px; line-height: 1.7; }
.text-button { padding: 7px 0; color: var(--lime); background: none; border: 0; font-size: 12px; font-weight: 800; }
.text-button:hover { text-decoration: underline; }

fieldset { min-width: 0; }
.players-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.player-card { margin: 0; padding: 22px; border: 1px solid var(--line); border-radius: 18px; background: rgba(2, 15, 11, .34); }
.player-card legend { padding: 0 8px; font-size: 12px; font-weight: 900; letter-spacing: .08em; }
.player-card legend span { display: inline-grid; width: 29px; height: 29px; margin-right: 6px; place-items: center; border-radius: 9px; color: #07130f; }
.player-one legend span { background: var(--lime); }
.player-two legend span { background: var(--blue); }

.field-grid, .rules-grid, .rule-primary, .tiebreak-fields { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
label > span, .choice-group legend { display: block; margin-bottom: 8px; color: var(--muted); font-size: 14px; font-weight: 700; }

input[type="number"], select {
  width: 100%;
  height: 46px;
  padding: 0 13px;
  color: var(--text);
  border: 1px solid var(--line);
  background: rgba(3, 16, 12, .74);
  border-radius: 11px;
  transition: border-color .18s, background .18s;
}

input[type="number"]:hover, select:hover { border-color: rgba(202,255,77,.34); }
input[type="number"]:focus, select:focus { border-color: var(--lime); background: rgba(5, 25, 18, .94); }

.score-table { max-width: 650px; overflow: hidden; border: 1px solid var(--line); border-radius: 16px; }
.score-row { display: grid; grid-template-columns: 72px repeat(3, 1fr); gap: 10px; align-items: center; padding: 10px 14px; border-top: 1px solid var(--line); }
.score-row:first-child { border-top: 0; }
.score-head { color: var(--muted); background: rgba(255,255,255,.025); font-size: 10px; font-weight: 900; text-align: center; }
.score-row strong { font-size: 12px; }
.score-row input { height: 42px; text-align: center; }
.p1-color { color: var(--lime); }
.p2-color { color: var(--blue); }

.choice-group { display: flex; flex-wrap: wrap; gap: 10px; margin: 24px 0 0; padding: 0; border: 0; }
.choice-group legend { width: 100%; }
.choice-group label { position: relative; }
.choice-group input { position: absolute; opacity: 0; }
.choice-group label span { min-width: 138px; margin: 0; padding: 12px 16px; color: var(--muted); border: 1px solid var(--line); border-radius: 11px; text-align: center; }
.choice-group input:checked + span { color: var(--text); border-color: var(--lime); background: rgba(202,255,77,.09); }

.toggle-row { max-width: 650px; display: flex; align-items: center; justify-content: space-between; margin-top: 23px; padding: 16px; border: 1px solid var(--line); border-radius: 14px; }
.toggle-row > span strong, .toggle-row > span small { display: block; }
.toggle-row > span { margin: 0; color: var(--text); }
.toggle-row > span small { margin-top: 4px; color: var(--muted); font-weight: 500; }
.toggle-row input { position: absolute; opacity: 0; }
.toggle-row i { position: relative; width: 45px; height: 25px; background: #294038; border-radius: 99px; transition: .2s; }
.toggle-row i::after { content: ""; position: absolute; width: 19px; height: 19px; left: 3px; top: 3px; background: #d8e2dc; border-radius: 50%; transition: .2s; }
.rule-note { display: block; margin-top: 8px; color: var(--muted); line-height: 1.55; }
.toggle-row input:checked + i { background: var(--lime); }
.toggle-row input:checked + i::after { transform: translateX(20px); background: #13200d; }
.tiebreak-fields { max-width: 650px; margin-top: 14px; padding: 18px; border: 1px dashed rgba(202,255,77,.26); border-radius: 14px; }
.tiebreak-fields label:last-child { grid-column: 1 / -1; }

.rule-primary { max-width: 650px; }
.advanced-rules { max-width: 650px; margin-top: 18px; border-top: 1px solid var(--line); }
.advanced-rules summary { padding: 18px 0; color: var(--muted); font-size: 13px; font-weight: 800; }
.advanced-rules[open] summary { color: var(--lime); }
.advanced-rules p { margin: 14px 0 0; color: var(--muted); font-size: 12px; }

.submit-bar { position: sticky; bottom: 14px; z-index: 5; display: flex; align-items: center; justify-content: space-between; gap: 18px; margin: 24px 0 70px; padding: 14px 14px 14px 22px; background: rgba(9, 29, 22, .92); border: 1px solid rgba(202,255,77,.25); border-radius: 18px; box-shadow: 0 18px 45px rgba(0,0,0,.38); backdrop-filter: blur(14px); }
.submit-bar > span { color: var(--muted); font-size: 11px; }
.primary-button { min-width: 230px; height: 52px; display: flex; align-items: center; justify-content: space-between; padding: 0 10px 0 21px; color: #0b1608; background: var(--lime); border: 0; border-radius: 13px; font-weight: 900; }
.primary-button b { width: 34px; height: 34px; display: grid; place-items: center; background: rgba(7,19,15,.13); border-radius: 9px; font-size: 19px; }
.primary-button:hover { filter: brightness(1.06); transform: translateY(-1px); }
.primary-button:disabled { cursor: wait; filter: saturate(.3); transform: none; }

footer { width: min(1120px, calc(100% - 32px)); margin: 0 auto; padding: 24px 0 42px; color: var(--muted); border-top: 1px solid var(--line); font-size: 11px; line-height: 1.7; }

@media (max-width: 780px) {
  .result-grid { grid-template-columns: 1fr 1fr; }
  .players-grid { grid-template-columns: 1fr; }
  .hero { padding: 30px 0 24px; }
}

@media (max-width: 520px) {
  .site-header, main, footer { width: min(100% - 22px, 1120px); }
  .site-header { height: 66px; }
  .server-badge { display: none; }
  .hero h1 { font-size: 34px; }
  .results-panel, .panel { padding: 20px; border-radius: 19px; }
  .result-grid { gap: 8px; margin-top: 18px; }
  .result-card { min-height: 130px; padding: 16px; }
  .result-card strong { margin: 14px 0 17px; font-size: 30px; }
  .result-card > span { font-size: 12px; }
  .field-grid, .rules-grid, .rule-primary { grid-template-columns: 1fr; }
  .player-card { padding: 17px; }
  .score-row { grid-template-columns: 38px repeat(3, 1fr); gap: 6px; padding: 9px; }
  .choice-group label { flex: 1; }
  .choice-group label span { min-width: 0; }
  .tiebreak-fields { grid-template-columns: 1fr 1fr; }
  .submit-bar { bottom: 8px; padding: 9px; }
  .submit-bar > span { display: none; }
  .primary-button { width: 100%; min-width: 0; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; }
}

/* Match score entry */
.score-entry-panel { margin-top: 0; }
.score-actions { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 18px; }
.danger-button { color: var(--danger); }
.text-button:disabled { cursor: default; opacity: .4; text-decoration: none; }
.match-controls { margin-top: 24px; }
.first-server { margin-top: 0; }

.entry-guide {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 18px;
  margin: 20px 0;
  padding: 14px 16px;
  color: var(--muted);
  background: rgba(202, 255, 77, .055);
  border: 1px solid rgba(202, 255, 77, .16);
  border-radius: 14px;
  font-size: 13px;
  line-height: 1.6;
}
.entry-guide strong { color: var(--text); font-size: 13px; }
.entry-guide span { display: inline-flex; align-items: center; gap: 7px; }
.entry-guide i {
  width: 21px;
  height: 21px;
  display: inline-grid;
  flex: 0 0 auto;
  place-items: center;
  color: #10200d;
  background: var(--lime);
  border-radius: 50%;
  font-size: 11px;
  font-style: normal;
  font-weight: 900;
}
.entry-guide small { flex-basis: 100%; font-size: 12px; }

.match-score-sheet { display: grid; gap: 12px; min-width: 0; }
.match-game { overflow: hidden; border: 1px solid var(--line); border-radius: 15px; background: rgba(3, 16, 12, .46); }
.match-game-grid {
  --point-columns: 10;
  display: grid;
  grid-template-columns: 5rem 3.25rem repeat(var(--point-columns), minmax(0, 1fr));
  width: 100%;
}
.match-game-grid.continuation {
  grid-template-columns: repeat(var(--point-columns), minmax(0, 1fr));
  border-top: 2px solid rgba(202, 255, 77, .25);
}
.match-game-grid > * {
  display: grid;
  min-width: 0;
  min-height: 40px;
  place-items: center;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.match-game-grid > *:last-child { border-right: 0; }
.match-game-title { padding: 0 8px; color: var(--text); font-size: 11px; letter-spacing: .05em; }
.match-score-label, .match-point-number { color: var(--muted); font-size: 10px; font-weight: 800; }
.match-player-label { display: flex; flex-direction: row; color: var(--lime); font-size: 12px; white-space: nowrap; }
.match-player-label.player-two-label { color: var(--blue); }
.match-player-label.server::before { margin-right: 5px; color: currentColor; content: "●"; font-size: 8px; }
.match-live-score { color: var(--text); font-size: 14px; font-weight: 900; }
.match-point-cell {
  width: 100%;
  min-height: 40px;
  padding: 0;
  color: var(--text);
  background: transparent;
  border: 0;
  border-radius: 0;
  font-size: 13px;
  font-weight: 900;
}
.match-point-cell:not(:disabled):hover { background: rgba(202, 255, 77, .08); }
.match-point-cell.selected { color: var(--blue); background: rgba(105, 200, 255, .16); }
.match-point-cell.double-fault { color: var(--orange); background: rgba(255, 171, 92, .18); }
.match-point-cell:disabled { cursor: default; opacity: 1; }
.match-summary { margin: 16px 0 0; color: var(--muted); font-size: 13px; line-height: 1.7; text-align: center; }
.rules-panel { margin-bottom: 70px; }

@media (max-width: 620px) {
  .score-entry-panel .section-title { align-items: flex-start; }
  .score-actions { gap: 12px; }
  .entry-guide { align-items: flex-start; }
  .entry-guide strong { flex-basis: 100%; }
  .match-game-grid { grid-template-columns: 3.1rem 2.8rem repeat(var(--point-columns), minmax(0, 1fr)); }
  .match-game-title { font-size: 9px; }
  .match-point-number { font-size: 9px; }
  .match-player-label { font-size: 11px; }
}