:root {
  --paper: #f4f1ea;
  --surface: #fffdf8;
  --ink: #171815;
  --muted: #6f7169;
  --line: #d8d5cc;
  --soft-line: #e8e5dd;
  --red: #c94736;
  --red-dark: #9e3025;
  --green: #345e4c;
  --yellow: #e2b54d;
  --shadow: 0 18px 50px rgba(39, 35, 28, 0.08);
}

* {
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

[hidden] {
  display: none !important;
}

html {
  min-height: 100%;
  background: var(--paper);
}

body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
  color: var(--ink);
  background:
    linear-gradient(rgba(23, 24, 21, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(23, 24, 21, 0.025) 1px, transparent 1px),
    var(--paper);
  background-size: 24px 24px;
  font-family: Inter, "SF Pro Display", "PingFang SC", "Microsoft YaHei", sans-serif;
  letter-spacing: 0;
}

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

button {
  cursor: pointer;
}

button:focus-visible,
input:focus-visible,
select:focus-visible,
[tabindex]:focus-visible {
  outline: 3px solid rgba(201, 71, 54, 0.28);
  outline-offset: 2px;
}

.app-shell {
  width: min(1480px, 100%);
  min-height: 100vh;
  margin: 0 auto;
  padding: 20px 28px 28px;
}

.topbar {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
}

.eyebrow,
.section-index {
  margin: 0 0 5px;
  color: var(--muted);
  font-size: 10px;
  font-weight: 800;
}

.topbar h1 {
  margin: 0;
  font-family: Georgia, "Noto Serif SC", serif;
  font-size: 29px;
  font-weight: 600;
}

.topbar-note {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.tool-tabs {
  display: flex;
  gap: 28px;
  border-bottom: 1px solid var(--line);
}

.tool-tab {
  position: relative;
  min-width: 150px;
  height: 58px;
  border: 0;
  background: transparent;
  color: var(--muted);
  text-align: left;
  font-size: 13px;
  font-weight: 800;
}

.tool-tab span {
  margin-right: 9px;
  color: #9d9e97;
  font-family: "SF Mono", "Roboto Mono", ui-monospace, monospace;
  font-size: 10px;
}

.tool-tab::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -1px;
  left: 0;
  height: 3px;
  transform: scaleX(0);
  transform-origin: left;
  background: var(--red);
  transition: transform 160ms ease;
}

.tool-tab:hover,
.tool-tab.selected {
  color: var(--ink);
}

.tool-tab.selected::after {
  transform: scaleX(1);
}

.workspace {
  min-height: calc(100vh - 155px);
}

.timer-workspace,
.dice-workspace,
.random-workspace {
  width: 100%;
  min-width: 0;
  margin: 0 auto;
  padding: 30px 0;
}

.timer-workspace {
  max-width: 820px;
}

.dice-workspace {
  max-width: 1160px;
}

.random-workspace {
  max-width: 960px;
}

.section-heading {
  min-height: 52px;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 22px;
}

.section-heading h2 {
  margin: 0;
  font-size: 21px;
  font-weight: 740;
}

.icon-button {
  width: 40px;
  height: 40px;
  border: 1px solid var(--line);
  background: transparent;
  font-size: 19px;
}

.icon-button:hover {
  background: var(--surface);
}

.timer-setup,
.timer-game {
  animation: reveal 260ms ease both;
}

.setup-row {
  display: flex;
  min-height: 52px;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  font-size: 13px;
  font-weight: 700;
}

.stepper {
  display: grid;
  grid-template-columns: 36px 42px 36px;
  align-items: center;
  text-align: center;
}

.stepper button {
  width: 36px;
  height: 36px;
  border: 0;
  background: transparent;
  font-size: 22px;
}

.stepper output {
  font-variant-numeric: tabular-nums;
}

.players-editor {
  margin-top: 13px;
  border-top: 1px solid var(--soft-line);
}

.player-editor {
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr) 120px;
  gap: 10px;
  align-items: center;
  min-height: 58px;
  border-bottom: 1px solid var(--soft-line);
}

.player-number {
  display: grid;
  width: 25px;
  height: 25px;
  place-items: center;
  border-radius: 50%;
  color: var(--surface);
  background: var(--ink);
  font-size: 11px;
  font-weight: 800;
}

.player-editor input {
  width: 100%;
  min-width: 0;
  height: 38px;
  border: 0;
  border-bottom: 1px solid transparent;
  background: transparent;
  font-weight: 650;
}

.player-editor input:hover,
.player-editor input:focus {
  border-bottom-color: var(--line);
}

.duration-control {
  display: flex;
  align-items: center;
  gap: 5px;
  color: var(--muted);
  font-size: 12px;
}

.duration-control input {
  width: 76px;
  text-align: right;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}

.setup-actions {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 12px;
  align-items: end;
  margin-top: 22px;
}

.start-player-label {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
}

.start-player-label select {
  width: 100%;
  height: 46px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: var(--surface);
}

.primary-button,
.secondary-button,
.roll-button {
  height: 46px;
  border: 0;
  border-radius: 2px;
  padding: 0 20px;
  font-weight: 800;
}

.primary-button,
.roll-button {
  color: #fff;
  background: var(--red);
}

.primary-button:hover,
.roll-button:hover {
  background: var(--red-dark);
}

.secondary-button {
  border: 1px solid var(--line);
  background: var(--surface);
}

.duel-timer {
  min-height: min(690px, calc(100vh - 275px));
  display: grid;
  grid-template-rows: minmax(220px, 1fr) auto minmax(220px, 1fr);
  border: 1px solid var(--line);
  background: var(--surface);
}

.duel-player {
  width: 100%;
  min-height: 0;
  padding: 20px;
  border: 0;
  background: transparent;
  text-align: left;
  transition: color 150ms ease, background 150ms ease;
}

.duel-player-top {
  border-bottom: 1px solid var(--line);
}

.duel-player-bottom {
  border-top: 1px solid var(--line);
}

.duel-player-top .duel-player-inner {
  transform: rotate(180deg);
}

.duel-player.active {
  color: #fff;
  background: var(--ink);
}

.duel-player.eliminated {
  color: rgba(255, 255, 255, 0.86);
  background: var(--red-dark);
}

.duel-player.winner {
  color: #fff;
  background: var(--green);
}

.duel-player:disabled {
  cursor: default;
}

.duel-player-inner {
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.duel-meta {
  display: flex;
  justify-content: space-between;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.duel-player.active .duel-meta,
.duel-player.eliminated .duel-meta {
  color: rgba(255, 255, 255, 0.68);
}

.duel-player time {
  display: block;
  margin: 14px 0 12px;
  font-family: "SF Mono", "Roboto Mono", ui-monospace, monospace;
  font-size: clamp(64px, 11vw, 110px);
  font-weight: 500;
  line-height: 0.9;
  font-variant-numeric: tabular-nums;
}

.duel-action {
  color: var(--muted);
  font-size: 11px;
}

.duel-player.active .duel-action,
.duel-player.eliminated .duel-action {
  color: rgba(255, 255, 255, 0.58);
}

.duel-center {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 14px;
  align-items: center;
  padding: 12px 16px;
  background: var(--paper);
}

.duel-center p {
  margin: 0;
  color: var(--muted);
  font-size: 11px;
  font-weight: 800;
}

.active-player {
  min-height: 255px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 22px 24px 18px;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: #fff;
  cursor: pointer;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.active-player:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.active-player.paused {
  background: #4e504a;
}

.active-player.game-over {
  background: var(--green);
}

.active-topline {
  display: flex;
  justify-content: space-between;
  color: rgba(255, 255, 255, 0.64);
  font-size: 11px;
  font-weight: 700;
}

.live-indicator {
  color: #fff;
}

.live-indicator::before {
  content: "";
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-right: 7px;
  border-radius: 50%;
  background: var(--yellow);
  vertical-align: 1px;
}

.active-name {
  margin: 14px 0 0;
  font-family: Georgia, "Noto Serif SC", serif;
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1;
}

.active-time {
  display: block;
  margin: auto 0 4px;
  font-family: "SF Mono", "Roboto Mono", ui-monospace, monospace;
  font-size: clamp(58px, 8vw, 94px);
  font-weight: 500;
  line-height: 0.9;
  font-variant-numeric: tabular-nums;
}

.tap-hint {
  margin: 15px 0 0;
  color: rgba(255, 255, 255, 0.58);
  font-size: 11px;
}

.player-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  margin-top: 14px;
  background: var(--line);
  border: 1px solid var(--line);
}

.player-mini {
  min-width: 0;
  min-height: 64px;
  padding: 10px;
  border: 0;
  background: var(--surface);
  text-align: left;
}

.player-mini.active {
  box-shadow: inset 0 -3px var(--red);
}

.player-mini.eliminated {
  opacity: 0.42;
  text-decoration: line-through;
}

.player-mini span,
.player-mini strong {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.player-mini span {
  margin-bottom: 6px;
  color: var(--muted);
  font-size: 10px;
}

.player-mini strong {
  font-family: "SF Mono", "Roboto Mono", ui-monospace, monospace;
  font-size: 15px;
  font-variant-numeric: tabular-nums;
}

.timer-controls {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 10px;
  margin-top: 14px;
}

.timer-controls button:disabled,
.roll-button:disabled {
  cursor: not-allowed;
  opacity: 0.45;
}

.timer-status {
  min-height: 18px;
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 11px;
  text-align: center;
}

.dice-total {
  min-width: 82px;
  text-align: right;
}

.dice-total span {
  display: block;
  color: var(--muted);
  font-size: 10px;
  font-weight: 700;
}

.dice-total strong {
  display: block;
  margin-top: 2px;
  font-family: Georgia, serif;
  font-size: 31px;
  line-height: 1;
}

.dice-selector {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.dice-selector button {
  position: relative;
  height: 46px;
  border: 0;
  background: transparent;
  color: var(--muted);
  font-family: "SF Mono", "Roboto Mono", ui-monospace, monospace;
  font-size: 12px;
  font-weight: 700;
}

.dice-selector button::after {
  content: "";
  position: absolute;
  right: 20%;
  bottom: -1px;
  left: 20%;
  height: 3px;
  transform: scaleX(0);
  background: var(--red);
  transition: transform 150ms ease;
}

.dice-selector button:hover,
.dice-selector button.selected {
  color: var(--ink);
}

.dice-selector button.selected::after {
  transform: scaleX(1);
}

.dice-stage {
  position: relative;
  width: 100%;
  height: clamp(460px, 58vh, 650px);
  overflow: hidden;
  display: block;
  border: 0;
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(rgba(255, 253, 248, 0.82), rgba(255, 253, 248, 0.82)),
    repeating-linear-gradient(45deg, #e6e1d7 0, #e6e1d7 1px, transparent 1px, transparent 9px);
  cursor: crosshair;
}

.dice-stage canvas {
  position: absolute;
  inset: 0;
  width: 100% !important;
  height: 100% !important;
  pointer-events: none;
}

.dice-loading {
  position: absolute;
  inset: 50% auto auto 50%;
  transform: translate(-50%, -50%);
  color: var(--muted);
  font-size: 12px;
  white-space: nowrap;
}

.fallback-die {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 112px;
  height: 112px;
  display: grid;
  place-items: center;
  transform: translate(-50%, -50%) rotate(0deg);
  border: 3px solid var(--ink);
  border-radius: 14px;
  background: var(--surface);
  box-shadow: 0 24px 35px rgba(23, 24, 21, 0.15);
  font-family: Georgia, serif;
  font-size: 48px;
  font-weight: 700;
}

.fallback-die.rolling {
  animation: fallback-roll 760ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.roll-bar {
  min-height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  border-bottom: 1px solid var(--line);
}

.roll-label,
.roll-detail {
  margin: 0;
}

.roll-label {
  font-size: 14px;
  font-weight: 800;
}

.roll-detail {
  margin-top: 5px;
  color: var(--muted);
  font-size: 10px;
}

.roll-button {
  min-width: 110px;
}

.history-block {
  margin-top: 18px;
}

.history-heading {
  display: flex;
  justify-content: space-between;
  color: var(--muted);
  font-size: 10px;
  font-weight: 800;
}

.history-heading button {
  border: 0;
  background: transparent;
  color: var(--muted);
  font-size: 10px;
}

.roll-history {
  display: flex;
  gap: 8px;
  min-height: 40px;
  margin: 10px 0 0;
  padding: 0;
  list-style: none;
}

.roll-history li {
  min-width: 72px;
  padding: 8px 10px;
  border-left: 2px solid var(--line);
  background: rgba(255, 253, 248, 0.55);
}

.roll-history .history-type,
.roll-history .history-value {
  display: block;
}

.history-type {
  color: var(--muted);
  font-size: 9px;
  font-weight: 800;
}

.history-value {
  margin-top: 3px;
  font-family: Georgia, serif;
  font-size: 18px;
  font-weight: 700;
}

.roll-history .empty-history {
  width: 100%;
  padding-left: 0;
  border: 0;
  background: transparent;
  color: var(--muted);
  font-size: 11px;
}

.distribution-block {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.distribution-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
}

.distribution-heading span,
.distribution-heading strong {
  display: block;
}

.distribution-heading span {
  color: var(--muted);
  font-size: 10px;
  font-weight: 800;
}

.distribution-heading strong {
  margin-top: 5px;
  font-size: 13px;
}

.distribution-heading button {
  border: 0;
  background: transparent;
  color: var(--muted);
  font-size: 10px;
}

.histogram {
  height: 220px;
  display: grid;
  gap: 5px;
  align-items: end;
  margin-top: 18px;
  padding: 22px 8px 0;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(to top, rgba(23, 24, 21, 0.045) 1px, transparent 1px);
  background-size: 100% 25%;
}

.histogram-bar {
  min-width: 0;
  height: 100%;
  display: grid;
  grid-template-rows: 1fr 20px;
  gap: 5px;
  align-items: end;
}

.histogram-track {
  position: relative;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: flex-end;
}

.histogram-fill {
  position: relative;
  width: 100%;
  background: var(--red);
  transition: height 260ms ease;
}

.histogram-fill span {
  position: absolute;
  top: -17px;
  left: 50%;
  transform: translateX(-50%);
  color: var(--muted);
  font-size: 9px;
  white-space: nowrap;
}

.histogram-label {
  overflow: hidden;
  color: var(--muted);
  font-family: "SF Mono", "Roboto Mono", ui-monospace, monospace;
  font-size: 9px;
  text-align: center;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.random-controls {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) auto;
  gap: 12px;
  align-items: end;
  padding: 18px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.random-controls label {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 10px;
  font-weight: 800;
}

.random-controls input {
  width: 100%;
  height: 46px;
  padding: 0 13px;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: var(--surface);
  color: var(--ink);
  font-family: "SF Mono", "Roboto Mono", ui-monospace, monospace;
  font-size: 14px;
}

.random-stage {
  width: 100%;
  min-height: 310px;
  display: grid;
  place-content: center;
  gap: 14px;
  margin-top: 20px;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: #fff;
  text-align: center;
}

.random-stage strong {
  max-width: 100%;
  font-family: "SF Mono", "Roboto Mono", ui-monospace, monospace;
  font-size: clamp(74px, 14vw, 150px);
  font-weight: 500;
  line-height: 0.9;
  overflow-wrap: anywhere;
  font-variant-numeric: tabular-nums;
}

.random-stage > span {
  color: rgba(255, 255, 255, 0.6);
  font-size: 11px;
  font-weight: 700;
}

.random-stage.generating strong {
  animation: number-pulse 180ms ease 2;
}

@keyframes number-pulse {
  50% { opacity: 0.35; transform: scale(0.96); }
}

@keyframes reveal {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fallback-roll {
  0% { transform: translate(-50%, -50%) rotate(0deg) scale(1); }
  35% { transform: translate(-35%, -85%) rotate(160deg) scale(0.86); }
  70% { transform: translate(-62%, -40%) rotate(295deg) scale(1.07); }
  100% { transform: translate(-50%, -50%) rotate(360deg) scale(1); }
}

@media (max-width: 980px) {
  .app-shell {
    padding: 16px 20px 24px;
  }

  .timer-workspace,
  .dice-workspace {
    padding: 26px 0;
  }

  .dice-stage {
    height: min(66vw, 570px);
    min-height: 400px;
  }
}

@media (max-width: 560px) {
  .app-shell {
    padding: 12px 14px 20px;
  }

  .topbar {
    min-height: 65px;
  }

  .topbar h1 {
    font-size: 25px;
  }

  .topbar-note {
    font-size: 11px;
  }

  .tool-tabs {
    gap: 0;
  }

  .tool-tab {
    flex: 1;
    min-width: 0;
    font-size: 12px;
    text-align: center;
  }

  .tool-tab span {
    display: block;
    margin: 0 0 3px;
  }

  .timer-workspace,
  .dice-workspace,
  .random-workspace {
    padding: 22px 0;
  }

  .section-heading {
    margin-bottom: 16px;
  }

  .player-editor {
    grid-template-columns: 27px minmax(0, 1fr) 100px;
    gap: 6px;
  }

  .duration-control input {
    width: 60px;
  }

  .active-player {
    min-height: 225px;
    padding: 18px;
  }

  .active-time {
    font-size: 58px;
  }

  .duel-timer {
    min-height: calc(100svh - 255px);
    grid-template-rows: minmax(190px, 1fr) auto minmax(190px, 1fr);
  }

  .duel-player {
    padding: 17px;
  }

  .duel-player time {
    font-size: clamp(58px, 20vw, 80px);
  }

  .player-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .dice-selector button {
    height: 43px;
    font-size: 11px;
  }

  .dice-stage {
    height: 390px;
    min-height: 0;
  }

  .roll-bar {
    min-height: 72px;
  }

  .roll-history {
    overflow-x: auto;
    padding-bottom: 5px;
  }

  .histogram {
    height: 190px;
    gap: 3px;
    padding-right: 2px;
    padding-left: 2px;
  }

  .histogram-fill span {
    font-size: 8px;
  }

  .histogram-label {
    font-size: 8px;
  }

  .random-controls {
    grid-template-columns: 1fr 1fr;
  }

  .random-controls .primary-button {
    grid-column: 1 / -1;
  }

  .random-stage {
    min-height: 260px;
  }

  .random-stage strong {
    font-size: clamp(64px, 23vw, 94px);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}