:root {
  color-scheme: light;
  --bg: #efe5d2;
  --paper: rgba(255, 248, 236, 0.92);
  --paper-strong: #fffaf1;
  --line: rgba(115, 82, 44, 0.16);
  --text: #23170f;
  --muted: #6b5949;
  --accent: #b6451f;
  --accent-deep: #7f2d19;
  --accent-soft: rgba(182, 69, 31, 0.12);
  --shadow: 0 20px 60px rgba(82, 53, 25, 0.12);
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans SC", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(182, 69, 31, 0.18), transparent 28%),
    radial-gradient(circle at bottom right, rgba(218, 170, 98, 0.18), transparent 24%),
    linear-gradient(135deg, #ead9bc 0%, #f6efe4 45%, #ebe1cf 100%);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-width: 320px;
}

button,
input,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

.page-shell {
  min-height: 100vh;
  padding: 18px;
}

.hero-panel,
.panel {
  border: 1px solid var(--line);
  border-radius: 28px;
  background: var(--paper);
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}

.hero-panel {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(240px, 0.6fr);
  gap: 18px;
  padding: 24px;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

h1,
h2 {
  margin: 0;
  line-height: 1.08;
}

h1 {
  font-size: clamp(30px, 6vw, 54px);
}

h2 {
  font-size: clamp(20px, 3.8vw, 28px);
}

.intro,
.placeholder-card,
.empty-copy,
.meta-label {
  color: var(--muted);
}

.intro {
  margin: 14px 0 0;
  line-height: 1.8;
  max-width: 52rem;
}

.signal-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 148px;
  padding: 18px;
  border-radius: 22px;
  background: linear-gradient(180deg, rgba(182, 69, 31, 0.12), rgba(182, 69, 31, 0.04));
  border: 1px solid rgba(182, 69, 31, 0.18);
}

.signal-label {
  font-size: 12px;
  color: var(--accent-deep);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.workspace-grid,
.play-grid {
  display: grid;
  gap: 18px;
  margin-top: 18px;
}

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

.play-grid {
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
}

.panel {
  padding: 20px;
}

.panel-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 18px;
}

.status-pill,
.mini-pill,
.mini-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 8px 12px;
  background: var(--accent-soft);
  color: var(--accent-deep);
  font-size: 12px;
  font-weight: 800;
}

.status-pill.busy {
  background: rgba(127, 45, 25, 0.16);
}

.error-banner {
  margin-top: 18px;
  padding: 14px 16px;
  border-radius: 18px;
  background: rgba(180, 41, 29, 0.14);
  color: #8f241c;
  border: 1px solid rgba(180, 41, 29, 0.18);
}

.form-card,
.self-card,
.placeholder-card,
.seat-card {
  padding: 16px;
  border-radius: 22px;
  background: var(--paper-strong);
  border: 1px solid var(--line);
}

.form-card + .form-card,
.self-card,
.room-meta,
.seat-list,
.tile-grid {
  margin-top: 14px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 12px;
}

.field span {
  font-size: 13px;
  color: var(--muted);
}

.field input,
.field select {
  min-height: 46px;
  border-radius: 16px;
  border: 1px solid rgba(108, 83, 55, 0.2);
  padding: 0 14px;
  background: #fffdf8;
  color: var(--text);
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.primary-btn,
.secondary-btn {
  min-height: 46px;
  border-radius: 16px;
  border: none;
  padding: 0 16px;
  font-weight: 800;
}

.primary-btn {
  background: linear-gradient(180deg, #cc5a31 0%, #b6451f 100%);
  color: #fffaf2;
}

.primary-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.ghost-btn,
.secondary-btn {
  background: rgba(182, 69, 31, 0.1);
  color: var(--accent-deep);
}

.room-meta {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.room-meta strong {
  display: block;
  margin-top: 6px;
}

.seat-list {
  display: grid;
  gap: 12px;
}

.seat-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.seat-card-wide {
  gap: 14px;
}

.seat-top,
.section-title {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
}

.mini-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tile-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(62px, 1fr));
  gap: 10px;
}

.tile-chip,
.discard-chip {
  min-height: 58px;
  border-radius: 18px;
  border: 1px solid rgba(113, 82, 47, 0.18);
  background: linear-gradient(180deg, #fff7eb 0%, #f1e0c4 100%);
  color: var(--text);
  font-weight: 800;
}

.discard-chip {
  min-height: auto;
  padding: 8px 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.discard-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.message-stack,
.event-timeline,
.timeline-list {
  margin-top: 14px;
}

.message-stack {
  display: grid;
  gap: 12px;
}

.message-card,
.timeline-item {
  padding: 14px;
  border-radius: 18px;
  background: var(--paper-strong);
  border: 1px solid var(--line);
}

.message-copy {
  margin-top: 8px;
  color: var(--muted);
  line-height: 1.7;
  word-break: break-word;
}

.action-meta-row {
  margin-top: 10px;
}

.candidate-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.candidate-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 34px;
  padding: 0 12px;
  border-radius: 999px;
  border: 1px solid rgba(113, 82, 47, 0.18);
  background: linear-gradient(180deg, rgba(255, 247, 235, 0.98) 0%, rgba(241, 224, 196, 0.92) 100%);
  color: var(--text);
  font-size: 13px;
  font-weight: 800;
}

.compact-field {
  flex: 1;
  min-width: 110px;
  margin: 0;
}

.vertical-on-mobile {
  margin-top: 14px;
}

@media (max-width: 900px) {
  .hero-panel,
  .workspace-grid,
  .play-grid,
  .room-meta {
    grid-template-columns: 1fr;
  }

  .page-shell {
    padding: 14px;
  }

  .panel,
  .hero-panel {
    padding: 16px;
  }

  .primary-btn,
  .secondary-btn,
  .field input,
  .field select {
    min-height: 48px;
  }

  .vertical-on-mobile {
    flex-direction: column;
  }
}