:root {
  --ts-bg: #12181b;
  --ts-surface: #1a2328;
  --ts-card: #222e35;
  --ts-jade: #20b2aa;
  --ts-gold: #ffd700;
  --ts-crimson: #d9383a;
  --ts-text: #f0f4f8;
  --ts-muted: #8a9ba8;
  --ts-border-gold: #3a321e;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: "LINE Seed Sans TH", ui-sans-serif, system-ui, sans-serif;
  color: var(--ts-text);
  background-color: var(--ts-bg);
  background-image:
    linear-gradient(#ffd70009 1px, transparent 1px),
    linear-gradient(90deg, #ffd70009 1px, transparent 1px);
  background-size: 34px 34px;
  -webkit-font-smoothing: antialiased;
}

.page {
  max-width: 64rem;
  margin: 0 auto;
  padding: 2.5rem 1rem 4rem;
}

.hero {
  text-align: center;
  margin-bottom: 2.5rem;
}

.badge {
  display: inline-block;
  padding: 0.35rem 1rem;
  border: 1px solid var(--ts-border-gold);
  border-radius: 999px;
  background: #ffd7001a;
  color: var(--ts-gold);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  margin-bottom: 1rem;
}

.hero h1 {
  margin: 0 0 0.75rem;
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  color: var(--ts-gold);
  line-height: 1.15;
}

.subtitle {
  margin: 0 0 1rem;
  color: var(--ts-muted);
  font-size: 1rem;
}

.formula {
  display: inline-block;
  margin: 0;
  padding: 0.75rem 1.25rem;
  border-radius: 999px;
  background: var(--ts-surface);
  border: 1px solid #ffffff14;
  color: var(--ts-muted);
  font-size: 0.875rem;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

@media (min-width: 768px) {
  .grid-2 {
    grid-template-columns: 1fr 1fr;
  }
}

.card {
  position: relative;
  background: #222e35e6;
  border: 1px solid var(--ts-border-gold);
  border-radius: 1rem;
  padding: 1.25rem;
  margin-bottom: 1.5rem;
}

.ts-corner::before,
.ts-corner::after {
  content: "";
  pointer-events: none;
  opacity: 0.7;
  border-style: solid;
  border-color: var(--ts-gold);
  width: 14px;
  height: 14px;
  position: absolute;
}

.ts-corner::before {
  border-width: 1px 0 0 1px;
  top: 6px;
  left: 6px;
}

.ts-corner::after {
  border-width: 0 1px 1px 0;
  bottom: 6px;
  right: 6px;
}

.card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.75rem;
}

.card h2 {
  margin: 0;
  font-size: 1.125rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.side-avg {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--ts-muted);
}

.player-card .side-avg span {
  color: var(--ts-jade);
  font-weight: 700;
}

.npc-card .side-avg span {
  color: var(--ts-crimson);
  font-weight: 700;
}

.player-card h2 {
  color: var(--ts-jade);
}

.npc-card h2 {
  color: var(--ts-crimson);
}

.rebirth-card h2 {
  color: var(--ts-text);
}

.icon {
  display: inline-flex;
  width: 1.25rem;
  height: 1.25rem;
  align-items: center;
  justify-content: center;
}

.icon-player::before {
  content: "👥";
  font-size: 0.9rem;
}

.icon-npc::before {
  content: "⚔";
  font-size: 0.9rem;
}

.btn-clear,
.btn-clear-all {
  border: 1px solid #ffffff22;
  background: transparent;
  color: var(--ts-muted);
  border-radius: 0.5rem;
  padding: 0.35rem 0.75rem;
  font: inherit;
  font-size: 0.8rem;
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s;
}

.btn-clear:hover,
.btn-clear-all:hover {
  color: var(--ts-gold);
  border-color: var(--ts-gold);
}

.hint {
  margin: 0 0 1rem;
  color: var(--ts-muted);
  font-size: 0.875rem;
}

.input-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  grid-template-rows: repeat(5, auto);
  grid-auto-flow: column;
  gap: 0.75rem;
}

@media (min-width: 640px) {
  .input-grid {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    grid-template-rows: repeat(2, auto);
    grid-auto-flow: row;
  }
}

.input-cell label {
  display: block;
  font-size: 0.75rem;
  color: var(--ts-muted);
  margin-bottom: 0.35rem;
}

.input-cell input {
  width: 100%;
  height: 2.75rem;
  border-radius: 0.75rem;
  border: 1px solid #ffffff18;
  background: var(--ts-surface);
  color: var(--ts-text);
  padding: 0 0.75rem;
  font: inherit;
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.input-cell input:focus {
  border-color: var(--ts-gold);
  box-shadow: 0 0 0 2px #ffd70033;
}

.player-card .input-cell input:focus {
  border-color: var(--ts-jade);
  box-shadow: 0 0 0 2px #20b2aa33;
}

.npc-card .input-cell input:focus {
  border-color: var(--ts-crimson);
  box-shadow: 0 0 0 2px #d9383a33;
}

.results-card h2 {
  text-align: center;
  margin-bottom: 1.25rem;
  font-size: 1.25rem;
}

.combo-result-only {
  text-align: center;
  padding: 1.5rem 1rem;
  border-radius: 0.75rem;
  background: var(--ts-surface);
  border: 1px solid #ffffff10;
  margin-bottom: 1rem;
}

.combo-result-only .label {
  display: block;
  font-size: 0.875rem;
  color: var(--ts-muted);
  margin-bottom: 0.75rem;
}

.combo-result-only .value {
  display: block;
  font-size: 3rem;
  font-weight: 700;
  color: var(--ts-gold);
  font-variant-numeric: tabular-nums;
  line-height: 1;
}

.status {
  text-align: center;
  color: var(--ts-muted);
  font-size: 0.875rem;
  margin: 0.75rem 0 1rem;
}

.btn-clear-all {
  display: block;
  margin: 0 auto;
  padding: 0.5rem 1.25rem;
}

.rebirth-inputs {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-bottom: 1rem;
}

@media (min-width: 640px) {
  .rebirth-inputs {
    grid-template-columns: repeat(3, 1fr);
  }
}

.rebirth-inputs label span {
  display: block;
  font-size: 0.875rem;
  color: var(--ts-muted);
  margin-bottom: 0.35rem;
}

.rebirth-inputs input {
  width: 100%;
  height: 2.75rem;
  border-radius: 0.75rem;
  border: 1px solid #ffffff18;
  background: var(--ts-surface);
  color: var(--ts-text);
  padding: 0 0.75rem;
  font: inherit;
  outline: none;
}

.rebirth-inputs input:focus {
  border-color: var(--ts-gold);
  box-shadow: 0 0 0 2px #ffd70033;
}

.formula-box {
  background: var(--ts-surface);
  border: 1px solid #ffffff10;
  border-radius: 0.75rem;
  padding: 1rem;
  margin-bottom: 1rem;
  font-size: 0.875rem;
  color: var(--ts-muted);
  line-height: 1.6;
}

.formula-title {
  margin: 0 0 0.35rem;
  color: var(--ts-text);
  font-weight: 600;
}

.formula-box p {
  margin: 0.25rem 0;
}

.formula-note {
  font-size: 0.8rem;
  opacity: 0.85;
}

.rebirth-result {
  text-align: center;
  padding: 1.25rem;
  border-radius: 0.75rem;
  background: var(--ts-surface);
  border: 1px solid #ffffff10;
  margin-bottom: 0.5rem;
}

.rebirth-result .label {
  display: block;
  color: var(--ts-muted);
  font-size: 0.875rem;
  margin-bottom: 0.5rem;
}

.rebirth-result .value {
  display: block;
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--ts-gold);
  font-variant-numeric: tabular-nums;
}

input[type="number"]::-webkit-outer-spin-button,
input[type="number"]::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

input[type="number"] {
  -moz-appearance: textfield;
  appearance: textfield;
}