:root {
  --ink: #17231f;
  --muted: #66746e;
  --soft: #f4efe3;
  --paper: #fffaf0;
  --line: rgba(23, 35, 31, 0.14);
  --jade: #0f6a55;
  --jade-dark: #0b4338;
  --gold: #c4933f;
  --red: #b33b33;
  --blue: #305c89;
  --panel: rgba(255, 250, 240, 0.92);
  --shadow: 0 18px 48px rgba(12, 34, 28, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  padding-bottom: 88px;
  color: var(--ink);
  background:
    linear-gradient(120deg, rgba(15, 106, 85, 0.12), transparent 36%),
    linear-gradient(300deg, rgba(179, 59, 51, 0.1), transparent 32%),
    var(--soft);
  font-family:
    Inter, "PingFang SC", "Microsoft YaHei", system-ui, -apple-system,
    BlinkMacSystemFont, sans-serif;
}

button,
input,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

.app-shell {
  width: min(1200px, calc(100% - 32px));
  margin: 0 auto;
  padding: 20px 0 42px;
}

.topbar,
.brand-lockup,
.home-actions,
.quick-room,
.room-head,
.room-actions,
.sticky-bar,
.judge-head,
.judge-actions,
.summary-actions,
.manual-amount,
.settle-band,
.settle-band-actions,
.bottom-nav {
  display: flex;
  align-items: center;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  justify-content: space-between;
  gap: 14px;
  padding: 12px 0;
  backdrop-filter: blur(18px);
}

.brand-lockup {
  min-width: 0;
  gap: 12px;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 52px;
  border: 1px solid rgba(23, 35, 31, 0.18);
  border-radius: 7px;
  color: var(--red);
  background: linear-gradient(180deg, #fffdf8, #eadfc7);
  box-shadow: inset 0 -8px 0 rgba(23, 35, 31, 0.06);
  font-size: 24px;
  font-weight: 900;
}

h1,
h2,
h3,
p {
  margin-top: 0;
  letter-spacing: 0;
}

h1 {
  margin-bottom: 0;
  font-size: 28px;
  line-height: 1;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(30px, 5vw, 58px);
  line-height: 1.04;
}

h3 {
  margin-bottom: 0;
  font-size: 20px;
  line-height: 1.2;
}

.eyebrow {
  margin-bottom: 6px;
  color: var(--jade-dark);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.page {
  display: none;
}

.page.active {
  display: block;
  animation: lift 180ms ease-out;
}

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

.icon-button,
.ghost-button,
.primary-action,
.secondary-action,
.danger-action,
.text-button {
  min-height: 44px;
  border-radius: 8px;
  font-weight: 900;
}

.icon-button {
  width: 44px;
  border: 1px solid var(--line);
  color: var(--ink);
  background: rgba(255, 250, 240, 0.72);
}

.ghost-button,
.secondary-action {
  border: 1px solid var(--line);
  color: var(--ink);
  background: rgba(255, 250, 240, 0.86);
}

.primary-action {
  border: 0;
  color: #fff;
  background: var(--jade);
}

.danger-action {
  border: 0;
  color: #fffaf0;
  background: var(--red);
}

.primary-action:hover {
  background: var(--jade-dark);
}

.danger-action:hover {
  background: #8f2e28;
}

.primary-action:disabled,
.secondary-action:disabled,
.danger-action:disabled {
  cursor: not-allowed;
  opacity: 0.62;
}

.secondary-action:hover,
.ghost-button:hover,
.icon-button:hover {
  border-color: rgba(15, 106, 85, 0.4);
}

.primary-action,
.secondary-action,
.danger-action,
.ghost-button {
  padding: 0 16px;
}

.text-button {
  border: 0;
  color: var(--jade-dark);
  background: transparent;
}

.bottom-nav {
  position: fixed;
  right: 12px;
  bottom: 12px;
  left: 12px;
  z-index: 30;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 6px;
  max-width: 620px;
  margin: 0 auto;
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 250, 240, 0.94);
  box-shadow: 0 16px 42px rgba(12, 34, 28, 0.2);
  backdrop-filter: blur(18px);
}

.bottom-nav button {
  min-width: 0;
  min-height: 46px;
  border: 0;
  border-radius: 8px;
  color: var(--muted);
  background: transparent;
  font-size: 13px;
  font-weight: 950;
}

.bottom-nav button.active {
  color: #fff;
  background: var(--jade);
}

.compact {
  min-height: 38px;
}

.full {
  width: 100%;
}

.home-layout,
.invite-layout,
.me-layout,
.flow-grid,
.settle-layout,
.ai-layout,
.summary-layout,
.history-layout,
.join-layout,
.room-grid,
.dashboard-band {
  display: grid;
  gap: 16px;
}

.home-layout {
  grid-template-columns: minmax(0, 1fr) minmax(360px, 0.78fr);
  align-items: stretch;
  min-height: 500px;
}

.home-layout.simplified {
  grid-template-columns: minmax(0, 760px);
  justify-content: center;
  min-height: calc(100vh - 190px);
}

.command-panel,
.table-visual,
.form-surface,
.invite-surface,
.data-block,
.confirm-surface,
.photo-surface,
.judge-surface,
.summary-main,
.share-poster {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.command-panel {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(24px, 5vw, 54px);
}

.command-panel h2 {
  max-width: 720px;
}

.home-hint {
  max-width: 480px;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 15px;
  font-weight: 800;
  line-height: 1.7;
}

.home-actions {
  flex-wrap: wrap;
  gap: 10px;
  margin: 8px 0 26px;
}

.home-actions button {
  min-width: 148px;
}

.quick-room {
  justify-content: space-between;
  gap: 12px;
  max-width: 420px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.55);
}

.quick-room span {
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.table-visual {
  display: grid;
  place-items: center;
  padding: 22px;
  overflow: hidden;
  background:
    linear-gradient(145deg, rgba(15, 106, 85, 0.1), rgba(196, 147, 63, 0.1)),
    var(--panel);
}

.mahjong-table {
  position: relative;
  width: min(420px, 88vw);
  aspect-ratio: 1;
  border: 12px solid #153d35;
  border-radius: 8px;
  background:
    linear-gradient(45deg, rgba(255, 255, 255, 0.06) 25%, transparent 25% 50%, rgba(255, 255, 255, 0.06) 50% 75%, transparent 75%),
    #0f6a55;
  background-size: 44px 44px;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.18), 0 18px 40px rgba(12, 34, 28, 0.22);
}

.seat {
  position: absolute;
  display: grid;
  place-items: center;
  gap: 4px;
  width: 92px;
  min-height: 70px;
  border: 1px solid rgba(23, 35, 31, 0.18);
  border-radius: 8px;
  background: #fffaf0;
  box-shadow: 0 8px 20px rgba(12, 34, 28, 0.16);
}

.seat span {
  color: var(--gold);
  font-size: 12px;
  font-weight: 900;
}

.seat strong {
  font-size: 15px;
}

.seat-top {
  top: 18px;
  left: 50%;
  transform: translateX(-50%);
}

.seat-right {
  top: 50%;
  right: 18px;
  transform: translateY(-50%);
}

.seat-bottom {
  bottom: 18px;
  left: 50%;
  transform: translateX(-50%);
}

.seat-left {
  top: 50%;
  left: 18px;
  transform: translateY(-50%);
}

.table-center {
  position: absolute;
  inset: 36%;
  display: grid;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.26);
  border-radius: 8px;
  color: #fffaf0;
  background: rgba(7, 42, 35, 0.62);
}

.table-center span {
  font-size: 12px;
  font-weight: 800;
}

.table-center strong {
  font-size: 36px;
}

.dashboard-band {
  grid-template-columns: 1fr 1fr;
  margin-top: 16px;
}

.data-block,
.form-surface,
.invite-surface,
.confirm-surface,
.photo-surface,
.judge-surface,
.summary-main,
.share-poster {
  padding: 20px;
}

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

.friend-row,
.rank-list,
.mini-scoreboard,
.ledger-list,
.highlight-grid,
.payment-list,
.reason-list,
.transfer-list,
.match-history,
.dispute-list {
  display: grid;
  gap: 10px;
}

.friend-row {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.friend-chip,
.rank-item,
.ledger-item,
.payment-item,
.reason-item,
.transfer-item,
.history-item,
.dispute-item,
.highlight-item {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.5);
}

.friend-chip {
  display: grid;
  place-items: center;
  min-height: 118px;
  padding: 10px;
  text-align: center;
}

.avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  color: #fff;
  background: var(--jade);
  font-weight: 900;
}

.friend-chip strong {
  margin-top: 8px;
}

.friend-chip span,
.rank-item span,
.ledger-item span,
.history-item span,
.dispute-item span,
.payment-item span,
.reason-item span,
.transfer-item span,
.highlight-item span {
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.rank-item,
.ledger-item,
.history-item,
.dispute-item,
.payment-item,
.reason-item,
.transfer-item,
.highlight-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 58px;
  padding: 12px;
}

.flow-grid {
  grid-template-columns: minmax(0, 1fr) 340px;
  align-items: start;
}

.flow-grid.single,
.invite-layout {
  grid-template-columns: minmax(0, 560px);
  justify-content: center;
}

.field-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

label {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 900;
}

input,
select {
  width: 100%;
  min-height: 46px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0 12px;
  color: var(--ink);
  background: #fffdf8;
}

.player-editor {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 18px 0;
}

.player-input {
  display: grid;
  grid-template-columns: 42px 1fr;
  align-items: center;
  gap: 10px;
}

.qr-card {
  display: grid;
  grid-template-columns: repeat(9, 1fr);
  gap: 4px;
  width: 220px;
  aspect-ratio: 1;
  margin: 0 auto 16px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fffdf8;
}

.qr-card span {
  border-radius: 2px;
  background: #fffdf8;
}

.qr-card span.dark {
  background: var(--ink);
}

.invite-copy {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.52);
}

.share-download {
  margin-bottom: 10px;
}

.join-layout {
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.85fr);
}

.join-code {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  margin-bottom: 14px;
}

.avatar-picker {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin-top: 14px;
}

.avatar-option {
  min-height: 78px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fffdf8;
}

.avatar-option.active {
  border-color: var(--jade);
  box-shadow: inset 0 0 0 2px rgba(15, 106, 85, 0.18);
}

.room-head {
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
}

.room-head h2 {
  margin-bottom: 0;
  font-size: clamp(28px, 4vw, 44px);
}

.room-actions {
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px;
}

.scoreboard {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.player-card {
  min-height: 220px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.player-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 20px;
}

.wind {
  color: var(--gold);
  font-size: 12px;
  font-weight: 900;
}

.player-name {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.player-card h3 {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.score-value {
  margin: 0;
  font-size: 42px;
  font-weight: 950;
  line-height: 1;
}

.delta {
  display: inline-flex;
  margin-top: 10px;
  padding: 5px 9px;
  border-radius: 999px;
  color: #fff;
  background: var(--jade);
  font-size: 13px;
  font-weight: 900;
}

.delta.negative {
  background: var(--red);
}

.badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 16px;
}

.badge {
  padding: 5px 8px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.54);
  font-size: 12px;
  font-weight: 900;
}

.room-grid {
  grid-template-columns: 1.12fr 0.88fr;
  margin-top: 16px;
}

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

.highlight-item {
  display: grid;
  align-content: center;
  min-height: 98px;
}

.highlight-item strong {
  font-size: 22px;
}

.sticky-bar {
  justify-content: flex-end;
  gap: 10px;
  margin-top: 16px;
}

.settle-band {
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(120deg, rgba(15, 106, 85, 0.12), rgba(196, 147, 63, 0.12)),
    var(--panel);
  box-shadow: var(--shadow);
}

.settle-band-copy {
  min-width: 220px;
}

.settle-band h2 {
  margin-bottom: 6px;
  font-size: clamp(30px, 4vw, 46px);
}

.settle-band p:last-child {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 14px;
  font-weight: 850;
  line-height: 1.55;
}

.settle-band-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(92px, 1fr));
  gap: 10px;
  flex: 1;
}

.settle-band-stats div,
.recent-match-grid div {
  display: grid;
  gap: 6px;
  min-height: 78px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.54);
}

.settle-band-stats span,
.recent-match-grid span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 900;
}

.settle-band-stats strong,
.recent-match-grid strong {
  overflow-wrap: anywhere;
  font-size: 17px;
}

.settle-band-actions {
  justify-content: flex-end;
  gap: 10px;
  flex-wrap: wrap;
}

.settle-layout,
.ai-layout,
.summary-layout {
  grid-template-columns: minmax(0, 1fr) 380px;
  align-items: start;
}

.fan-picker {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin: 18px 0;
}

.fan-option {
  min-height: 80px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--ink);
  background: #fffdf8;
  text-align: left;
}

.fan-option.active {
  border-color: var(--jade);
  background: rgba(15, 106, 85, 0.1);
}

.fan-option strong,
.fan-option span {
  display: block;
}

.fan-option span {
  margin-top: 4px;
  color: var(--muted);
  font-size: 12px;
}

.manual-amount {
  align-items: end;
  gap: 10px;
}

.manual-amount label {
  flex: 1;
}

.payment-list {
  margin: 20px 0;
}

.photo-surface {
  min-height: 580px;
}

.upload-tile {
  display: grid;
  place-items: center;
  min-height: 160px;
  margin-bottom: 16px;
  border: 2px dashed rgba(15, 106, 85, 0.36);
  border-radius: 8px;
  color: var(--jade-dark);
  background: rgba(255, 255, 255, 0.42);
  font-size: 18px;
}

.upload-tile input {
  display: none;
}

.tile-rack {
  display: grid;
  grid-template-columns: repeat(7, minmax(42px, 1fr));
  gap: 9px;
  margin: 18px 0;
}

.tile {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 78px;
  border: 1px solid rgba(23, 35, 31, 0.22);
  border-radius: 7px;
  color: var(--ink);
  background: linear-gradient(180deg, #fffdf8, #eadfc7);
  box-shadow: inset 0 -8px 0 rgba(23, 35, 31, 0.06);
  font-size: 16px;
  font-weight: 950;
  writing-mode: vertical-rl;
}

.tile.red {
  color: var(--red);
}

.tile.green {
  color: var(--jade);
}

.judge-surface {
  min-height: 580px;
}

.judge-head {
  justify-content: space-between;
  gap: 14px;
}

.judge-head h2 {
  margin-bottom: 0;
  font-size: 34px;
}

#confidenceText {
  color: var(--jade);
  font-size: 38px;
}

.confidence-meter {
  height: 12px;
  margin: 20px 0;
  border-radius: 999px;
  background: rgba(23, 35, 31, 0.1);
  overflow: hidden;
}

.confidence-meter span {
  display: block;
  width: 96%;
  height: 100%;
  background: linear-gradient(90deg, var(--jade), var(--gold));
}

.reason-item {
  align-items: flex-start;
}

.reason-item strong {
  min-width: 76px;
}

.judge-actions {
  gap: 10px;
  margin-top: 20px;
}

.summary-main h2,
.share-poster h2 {
  font-size: 34px;
}

.final-scoreboard {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 16px;
}

.final-player {
  display: grid;
  gap: 8px;
  min-height: 126px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.52);
}

.final-player strong {
  font-size: 32px;
}

.share-poster {
  color: #fffaf0;
  background:
    linear-gradient(150deg, rgba(11, 67, 56, 0.96), rgba(15, 106, 85, 0.9)),
    var(--jade-dark);
}

.share-poster .eyebrow {
  color: #f3d28a;
}

.poster-winner {
  display: grid;
  place-items: center;
  min-height: 170px;
  margin: 20px 0;
  border: 1px solid rgba(255, 250, 240, 0.22);
  border-radius: 8px;
  background: rgba(255, 250, 240, 0.09);
  text-align: center;
}

.poster-winner strong {
  display: block;
  margin-top: 8px;
  font-size: 46px;
}

.poster-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.poster-stat {
  padding: 12px;
  border: 1px solid rgba(255, 250, 240, 0.2);
  border-radius: 8px;
  background: rgba(255, 250, 240, 0.08);
}

.poster-stat span {
  display: block;
  color: rgba(255, 250, 240, 0.7);
  font-size: 12px;
  font-weight: 900;
}

.poster-stat strong {
  font-size: 22px;
}

.poster-footer {
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid rgba(255, 250, 240, 0.2);
  color: rgba(255, 250, 240, 0.76);
  font-size: 13px;
  font-weight: 900;
}

.summary-actions {
  justify-content: flex-end;
  gap: 10px;
  margin-top: 16px;
}

.history-layout {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.history-scores,
.recent-match-grid {
  display: grid;
  gap: 8px;
}

.history-scores {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 8px;
}

.history-scores span {
  color: var(--ink);
  font-size: 12px;
}

.recent-match-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-bottom: 14px;
}

.me-layout {
  grid-template-columns: minmax(0, 1fr);
}

.my-action-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.dashboard-band.embedded {
  margin-top: 0;
}

.positive {
  color: var(--jade);
}

.negative-text {
  color: var(--red);
}

.empty-state {
  min-height: 90px;
  display: grid;
  place-items: center;
  border: 1px dashed var(--line);
  border-radius: 8px;
  color: var(--muted);
  font-weight: 800;
}

@media (max-width: 920px) {
  .home-layout,
  .invite-layout,
  .me-layout,
  .flow-grid,
  .settle-layout,
  .ai-layout,
  .summary-layout,
  .history-layout,
  .join-layout,
  .room-grid,
  .dashboard-band {
    grid-template-columns: 1fr;
  }

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

  .invite-surface {
    order: initial;
  }
}

@media (max-width: 640px) {
  .app-shell {
    width: min(100% - 20px, 1200px);
    padding-top: 10px;
  }

  .topbar {
    gap: 8px;
  }

  .brand-mark,
  .icon-button {
    width: 38px;
    height: 42px;
  }

  h1 {
    font-size: 22px;
  }

  h2 {
    font-size: 32px;
  }

  .ghost-button.compact {
    display: none;
  }

  .command-panel,
  .data-block,
  .form-surface,
  .invite-surface,
  .confirm-surface,
  .photo-surface,
  .judge-surface,
  .summary-main,
  .share-poster {
    padding: 16px;
  }

  .field-grid,
  .player-editor,
  .friend-row,
  .my-action-grid,
  .fan-picker,
  .final-scoreboard,
  .poster-stats,
  .settle-band-stats,
  .recent-match-grid,
  .history-scores,
  .highlight-grid,
  .scoreboard {
    grid-template-columns: 1fr;
  }

  .room-head,
  .sticky-bar,
  .summary-actions,
  .judge-actions,
  .settle-band,
  .settle-band-actions,
  .manual-amount {
    align-items: stretch;
    flex-direction: column;
  }

  .room-actions {
    justify-content: stretch;
  }

  .room-actions button {
    flex: 1;
  }

  .bottom-nav {
    right: 10px;
    bottom: 10px;
    left: 10px;
  }

  .bottom-nav button {
    min-height: 44px;
    padding: 0 4px;
    font-size: 12px;
  }

  .tile-rack {
    grid-template-columns: repeat(4, minmax(42px, 1fr));
  }
}