:root {
  color-scheme: dark;
  --bg: #14161c;
  --panel: #1e2129;
  --panel-border: #2c303a;
  --text: #e8e9ee;
  --text-dim: #9296a3;
  --accent: #7c9dff;
  --gold: #f4c95d;

  --face-1: #ef5b5b;
  --face-2: #ff9f4a;
  --face-3: #f4c95d;
  --face-4: #58c46b;
  --face-5: #4fa8ea;
  --face-6: #b57cf0;

  --reroll: #ff4f8f;

  /* --- scorecard-selection feature tokens, derived from the palette above --- */
  --locked: var(--gold);                                                      /* committed, nonzero score */
  --locked-bg: color-mix(in srgb, var(--gold) 7%, transparent);
  --scratch: color-mix(in srgb, var(--face-1) 45%, var(--text-dim));          /* committed, deliberate zero */
  --scratch-bg: color-mix(in srgb, var(--face-1) 6%, transparent);
  --confirm: var(--reroll);                                                   /* "you are about to commit" */
  --confirm-bg: color-mix(in srgb, var(--reroll) 12%, var(--panel));
  --row-hover-bg: color-mix(in srgb, var(--accent) 9%, transparent);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(circle at top, #1b1e26, var(--bg) 60%);
  color: var(--text);
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
}

.app {
  max-width: 640px;
  margin: 0 auto;
  padding: 2.5rem 1.25rem 4rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  align-items: start;
}

@media (min-width: 780px) {
  .app {
    max-width: 1040px;
    grid-template-columns: minmax(360px, 1.15fr) minmax(300px, 0.85fr);
    gap: 1.75rem;
  }
  .app h1 { grid-column: 1 / -1; }
  .dice-tray { height: 100%; }
}

h1 {
  text-align: center;
  font-size: 1.75rem;
  letter-spacing: 0.02em;
  margin-bottom: 2rem;
}

.hint {
  text-align: center;
  color: var(--text-dim);
  font-size: 0.9rem;
  min-height: 1.2em;
}

/* Dice tray */

.dice-tray {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 1rem;
  padding: 1.5rem 1rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.dice {
  display: flex;
  justify-content: center;
  gap: 0.9rem;
  flex-wrap: wrap;
  margin-bottom: 1.25rem;
}

.die {
  --face-color: var(--face-1);
  position: relative;
  width: 4rem;
  height: 4rem;
  border-radius: 0.85rem;
  border: none;
  background: linear-gradient(155deg, color-mix(in srgb, var(--face-color) 85%, white), var(--face-color));
  box-shadow:
    inset 0 2px 0 color-mix(in srgb, var(--face-color) 60%, white),
    0 6px 14px rgba(0, 0, 0, 0.35);
  cursor: pointer;
  padding: 0;
}

.die.face-1 { --face-color: var(--face-1); }
.die.face-2 { --face-color: var(--face-2); }
.die.face-3 { --face-color: var(--face-3); }
.die.face-4 { --face-color: var(--face-4); }
.die.face-5 { --face-color: var(--face-5); }
.die.face-6 { --face-color: var(--face-6); }

.die:disabled {
  cursor: default;
}

.die.unrolled {
  --face-color: #3a3e4a;
  box-shadow: inset 0 2px 0 #4a4f5e, 0 4px 10px rgba(0, 0, 0, 0.3);
  animation: none;
}

.die.game-over-frozen {
  filter: grayscale(0.55) brightness(0.75);
  cursor: default;
}

/* Roll animation — only on dice that actually got a new rolled value this request */
.die.rolling { animation: tumble 0.4s ease-out; }

.die.selected {
  outline: 3px solid var(--reroll);
  outline-offset: 3px;
  transform: translateY(-4px);
  animation: pulse-ring 1.6s ease-in-out infinite;   /* ambient "this will change" cue */
}

.die:not(:disabled):not(.selected):hover {
  filter: brightness(1.1);
}

.die-face {
  position: absolute;
  inset: 0.55rem;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(3, 1fr);
}

.pip {
  visibility: hidden;
  width: 0.5rem;
  height: 0.5rem;
  margin: auto;
  border-radius: 50%;
  background: #14161c;
}

.die[data-value="1"] .p5,
.die[data-value="2"] .p1, .die[data-value="2"] .p9,
.die[data-value="3"] .p1, .die[data-value="3"] .p5, .die[data-value="3"] .p9,
.die[data-value="4"] .p1, .die[data-value="4"] .p3, .die[data-value="4"] .p7, .die[data-value="4"] .p9,
.die[data-value="5"] .p1, .die[data-value="5"] .p3, .die[data-value="5"] .p5, .die[data-value="5"] .p7, .die[data-value="5"] .p9,
.die[data-value="6"] .p1, .die[data-value="6"] .p3, .die[data-value="6"] .p4,
.die[data-value="6"] .p6, .die[data-value="6"] .p7, .die[data-value="6"] .p9 {
  visibility: visible;
}

.die.unrolled .pip {
  visibility: hidden !important;
}

.reroll-badge {
  position: absolute;
  bottom: -1.4rem;
  left: 0;
  right: 0;
  text-align: center;
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--reroll);
  animation: badge-in 0.18s ease-out;   /* one-shot, no rotation — reads as "instant", not "rolling" */
}

@keyframes tumble {
  0% { transform: rotate(-25deg) scale(0.7); opacity: 0.4; }
  60% { transform: rotate(8deg) scale(1.05); opacity: 1; }
  100% { transform: rotate(0) scale(1); }
}

@keyframes pulse-ring {
  0%, 100% { outline-color: var(--reroll); }
  50% { outline-color: color-mix(in srgb, var(--reroll) 55%, transparent); }
}

@keyframes badge-in {
  from { opacity: 0; transform: translateY(-2px) scale(0.9); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

@media (prefers-reduced-motion: reduce) {
  .die.rolling, .die.selected, .reroll-badge, .yahtzee-banner, .final-total { animation: none; }
}

/* Controls */

.controls {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
}

.btn {
  border: 1px solid var(--panel-border);
  background: #262a34;
  color: var(--text);
  padding: 0.6rem 1.25rem;
  border-radius: 0.6rem;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, transform 0.1s;
}

.btn:hover:not(:disabled) {
  background: #2f3440;
}

.btn:active:not(:disabled) {
  transform: scale(0.97);
}

.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.roll-btn {
  border-color: color-mix(in srgb, var(--accent) 50%, var(--panel-border));
  background: color-mix(in srgb, var(--accent) 18%, #262a34);
}

.new-game-btn {
  border-color: color-mix(in srgb, var(--gold) 55%, var(--panel-border));
  background: color-mix(in srgb, var(--gold) 16%, #262a34);
}

.game-over-overlay-msg {
  text-align: center;
  color: var(--text-dim);
  font-size: 0.95rem;
  margin-bottom: 1rem;
}

/* Scorecard */

.scorecard {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 1rem;
  padding: 1.25rem 1.25rem 1.5rem;
}

.scorecard-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.9rem;
}

.scorecard-header h2 {
  margin: 0;
  font-size: 1.1rem;
}

.scorecard .sub {
  display: block;
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--text-dim);
  margin-top: 0.15rem;
}

.grand-total-stat {
  text-align: right;
  flex-shrink: 0;
}

.grand-total-stat .gt-value {
  font-size: 1.6rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  line-height: 1;
  color: var(--text);
}

.grand-total-stat .gt-label {
  display: block;
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-top: 0.15rem;
}

.yahtzee-banner {
  text-align: center;
  font-weight: 800;
  font-size: 1.3rem;
  letter-spacing: 0.1em;
  color: #14161c;
  background: linear-gradient(120deg, var(--gold), var(--face-2));
  border-radius: 0.6rem;
  padding: 0.6rem;
  margin-bottom: 1rem;
  animation: glow 1.1s ease-in-out infinite alternate;
}

@keyframes glow {
  from { box-shadow: 0 0 6px color-mix(in srgb, var(--gold) 60%, transparent); }
  to { box-shadow: 0 0 20px color-mix(in srgb, var(--gold) 90%, transparent); }
}

.score-list {
  display: flex;
  flex-direction: column;
}

.score-row {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  column-gap: 0.75rem;
  padding: 0.5rem 0.4rem;
  border-bottom: 1px solid var(--panel-border);
  border-radius: 0.5rem;
  font-size: 0.9rem;
}

.score-row.summary-row {
  border-bottom: none;
  padding-top: 0.65rem;
  padding-bottom: 0.65rem;
}

.score-row.summary-row + .score-row {
  border-top: 1px solid var(--panel-border);
}

.score-list .score-row:last-child {
  border-bottom: none;
}

.row-main {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

/* row is a <button>-like element when selectable */
.score-row.selectable {
  cursor: pointer;
  background: none;
  border: none;
  width: 100%;
  text-align: left;
  color: inherit;
  font: inherit;
}

.score-row.selectable:hover,
.score-row.selectable:focus-visible {
  background: var(--row-hover-bg);
}

.score-row.selectable:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: -2px;
}

.score-row.selectable:hover .row-main .chevron,
.score-row.selectable:focus-visible .row-main .chevron {
  opacity: 1;
  transform: translateX(0);
}

.chevron {
  opacity: 0;
  transform: translateX(-3px);
  transition: opacity 0.12s, transform 0.12s;
  color: var(--accent);
  font-size: 0.85rem;
  margin-left: 0.35rem;
}

.label {
  color: var(--text);
}

.value {
  text-align: right;
  font-variant-numeric: tabular-nums;
  color: var(--text-dim);
  font-weight: 600;
  min-width: 2ch;
}

/* not yet rolled at all this turn */
.value.pending {
  color: var(--text-dim);
  opacity: 0.45;
  font-weight: 400;
}

/* selectable, nonzero live preview — "click me, this is good" */
.score-row.previewing .value {
  color: var(--accent);
  font-weight: 700;
}

/* selectable, zero live preview, not yet armed — neutral, not alarming */
.score-row.preview-zero .value {
  color: var(--text-dim);
  font-weight: 400;
}

/* committed nonzero score — settled, gold, no longer interactive */
.score-row.locked {
  cursor: default;
  background: var(--locked-bg);
}
.score-row.locked .value {
  color: var(--locked);
  font-weight: 800;
}

/* committed zero score ("scratched") — settled but visibly different from locked-nonzero */
.score-row.scratched {
  cursor: default;
  background: var(--scratch-bg);
}
.score-row.scratched .label { opacity: 0.65; }
.score-row.scratched .value {
  color: var(--scratch);
  text-decoration: line-through;
  text-decoration-thickness: 1.5px;
  font-weight: 700;
}
.score-row.scratched .scratch-tag {
  display: block;
  font-size: 0.6rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--scratch);
  text-align: right;
  margin-top: 0.1rem;
}

/* armed-for-confirmation state: replaces the row's value column with a confirm strip */
.score-row.armed {
  background: var(--confirm-bg);
  border: 1px solid color-mix(in srgb, var(--confirm) 45%, transparent);
  flex-direction: column;
  align-items: stretch;
  gap: 0.5rem;
  display: flex;
}

.armed-copy {
  font-size: 0.8rem;
  color: var(--text-dim);
}
.armed-copy strong { color: var(--text); }

.armed-actions {
  display: flex;
  gap: 0.5rem;
  justify-content: flex-end;
}

.armed-actions button {
  border-radius: 0.45rem;
  border: 1px solid var(--panel-border);
  padding: 0.35rem 0.75rem;
  min-height: 2.75rem;
  font-size: 0.78rem;
  font-weight: 700;
  cursor: pointer;
}

.armed-actions .confirm-btn {
  background: color-mix(in srgb, var(--confirm) 24%, #262a34);
  border-color: color-mix(in srgb, var(--confirm) 55%, var(--panel-border));
  color: var(--text);
}
.armed-actions .confirm-btn:hover { background: color-mix(in srgb, var(--confirm) 34%, #262a34); }

.armed-actions .cancel-btn {
  background: #262a34;
  color: var(--text-dim);
}
.armed-actions .cancel-btn:hover { background: #2f3440; color: var(--text); }

.score-row.yahtzee-row .label {
  color: var(--gold);
  font-weight: 700;
}

.score-row.yahtzee-row.previewing .value {
  color: var(--gold);
}

/* Upper/lower section summary rows */
.score-row.subtotal-row .label,
.score-row.subtotal-row .value,
.score-row.lower-subtotal-row .label,
.score-row.lower-subtotal-row .value {
  color: var(--text-dim);
  font-weight: 700;
  font-size: 0.82rem;
}

.bonus-track {
  grid-column: 1 / -1;
  margin-top: 0.5rem;
}

.bonus-copy {
  display: flex;
  justify-content: space-between;
  font-size: 0.72rem;
  color: var(--text-dim);
  margin-bottom: 0.3rem;
}

.bonus-copy .bonus-earned {
  color: var(--gold);
  font-weight: 700;
}

.bonus-bar {
  height: 0.4rem;
  border-radius: 1rem;
  background: #14161c;
  overflow: hidden;
  border: 1px solid var(--panel-border);
}

.bonus-bar-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 1rem;
  transition: width 0.3s ease-out;
}

.bonus-bar-fill.earned {
  background: linear-gradient(90deg, var(--gold), var(--face-2));
}

.section-divider {
  height: 1px;
  background: var(--panel-border);
  margin: 0.25rem 0;
}

/* ================= Game over ================= */

.final-total {
  text-align: center;
  padding: 1.1rem 1rem 1.25rem;
  border-radius: 0.75rem;
  background: linear-gradient(160deg, color-mix(in srgb, var(--gold) 10%, var(--panel)), var(--panel));
  border: 1px solid color-mix(in srgb, var(--gold) 40%, var(--panel-border));
  margin-bottom: 1rem;
  animation: glow 1.6s ease-in-out infinite alternate;
}

.final-total .ft-label {
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.final-total .ft-value {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--gold);
  font-variant-numeric: tabular-nums;
  line-height: 1.15;
}

.final-breakdown {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
  margin-top: 0.9rem;
}

.final-breakdown .chip {
  background: color-mix(in srgb, #000 20%, var(--panel));
  border: 1px solid var(--panel-border);
  border-radius: 0.5rem;
  padding: 0.5rem 0.4rem;
}

.final-breakdown .chip .chip-value {
  font-size: 1.05rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.final-breakdown .chip .chip-label {
  font-size: 0.65rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.final-breakdown .chip.bonus .chip-value.earned { color: var(--gold); }
.final-breakdown .chip.bonus .chip-value.missed { color: var(--text-dim); }