:root {
  /* ---- Admin operator console: custom-tuned OKLCH tokens ---- */
  --admin-paper: oklch(97.8% 0.006 220);
  --admin-surface: oklch(99.2% 0.004 220);
  --admin-surface-subtle: oklch(95.2% 0.012 220);
  --admin-surface-raised: oklch(99.4% 0.004 220);
  --admin-ink: oklch(23% 0.022 220);
  --admin-muted: oklch(47% 0.022 220);
  --admin-rule: oklch(84% 0.018 220);
  --admin-rule-strong: oklch(67% 0.03 220);
  --admin-accent: oklch(52% 0.105 215);
  --admin-accent-hover: oklch(45% 0.1 215);
  --admin-accent-soft: oklch(93% 0.035 215);
  --admin-accent-ink: oklch(24% 0.06 215);
  --admin-focus: oklch(66% 0.15 215);
  --admin-inverse: oklch(20% 0.026 220);
  --admin-inverse-raised: oklch(26% 0.03 220);
  --admin-inverse-rule: oklch(37% 0.035 220);
  --admin-on-inverse: oklch(96% 0.008 220);
  --admin-on-inverse-muted: oklch(76% 0.022 220);
  --admin-live: oklch(65% 0.12 170);
  --admin-warning: oklch(72% 0.14 75);
  --admin-danger: oklch(53% 0.17 24);
  --admin-danger-soft: oklch(94% 0.035 24);
  --admin-answer-blue: oklch(54% 0.19 255);
  --admin-answer-blue-soft: oklch(93% 0.035 255);
  --admin-font-body: "M PLUS 1p", sans-serif;
  --admin-font-mono: "JetBrains Mono", monospace;
  --admin-space-1: 4px;
  --admin-space-2: 8px;
  --admin-space-3: 12px;
  --admin-space-4: 16px;
  --admin-space-5: 20px;
  --admin-space-6: 24px;
  --admin-space-8: 32px;
  --admin-radius-control: 4px;
  --admin-radius-panel: 6px;
  --admin-radius-large: 8px;
  --admin-shadow-panel: 0 1px 2px color-mix(in oklch, var(--admin-ink) 8%, transparent);
  --admin-shadow-float: 0 12px 32px color-mix(in oklch, var(--admin-ink) 16%, transparent);
  --admin-ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --admin-ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --admin-duration-fast: 120ms;
  --admin-duration-base: 180ms;

  /* ---- MD3 color roles (シアン系シード色を継承) ---- */
  --md-primary: #0f7690;
  --md-on-primary: #ffffff;
  --md-primary-hover: #0c6178;
  --md-primary-container: #bcebf5;
  --md-on-primary-container: #002a33;

  --md-secondary-container: #cde7ec;
  --md-on-secondary-container: #051f24;

  --md-success: #146c43;
  --md-success-container: #c3f3d3;
  --md-on-success-container: #002109;

  --md-warning: #8a5300;
  --md-warning-container: #ffddb0;
  --md-on-warning-container: #2b1700;

  --md-error: #ba1a3f;
  --md-on-error: #ffffff;
  --md-error-container: #ffd9dd;
  --md-on-error-container: #400012;

  --md-tertiary: #6b4fa0;
  --md-tertiary-hover: #573f85;
  --md-tertiary-container: #ecdcff;
  --md-on-tertiary-container: #271a40;

  --md-surface: #ffffff;
  --md-surface-dim: #f3f8fa;
  --md-surface-container: #eef5f7;
  --md-surface-container-high: #e5eef0;
  --md-on-surface: #1a2b2f;
  --md-on-surface-variant: #45575b;

  --md-outline: #79888c;
  --md-outline-variant: #c7d6da;

  /* 回答判定の固定ルール: 正解=赤い○ / 不正解=青い×。テーマ色と混同・反転させないこと。 */
  --answer-correct: #c62828;
  --answer-correct-hover: #a61f1f;
  --answer-correct-container: #ffebee;
  --answer-incorrect: #1565c0;
  --answer-incorrect-hover: #0d4f9f;
  --answer-incorrect-container: #e3f2fd;

  /* ---- ダーク運用コンソール向け（site-header / admin-topbar専用のinverse surface） ---- */
  --md-inverse-surface: #172026;
  --md-inverse-surface-high: #263640;
  --md-inverse-outline: #36505c;
  --md-on-inverse-surface: #ffffff;
  --md-on-inverse-surface-variant: rgba(230, 251, 255, 0.72);
  --md-inverse-primary: #67e8f9;

  /* ---- 既存の変数名を新ロールへのエイリアスとして維持（既存150箇所超の参照を無改修で継承） ---- */
  --primary-color: var(--md-primary);
  --primary-strong: var(--md-primary-hover);
  --accent-color: #3f6a72;
  --success-color: var(--md-success);
  --warning-color: var(--md-warning);
  --danger-color: var(--md-error);
  --surface: var(--md-surface);
  --surface-soft: var(--md-surface-dim);
  --text: var(--md-on-surface);
  --muted: var(--md-on-surface-variant);
  --border: var(--md-outline-variant);
  --border-strong: var(--md-outline);

  --grad-primary: linear-gradient(135deg, #17879f 0%, var(--md-primary) 60%, var(--md-primary-hover) 100%);
  --grad-success: linear-gradient(135deg, #1f9d63 0%, var(--md-success) 100%);
  --grad-app: linear-gradient(180deg, #f4fafb 0%, #edf5f6 100%);

  /* ---- Shape scale（MD3の4段階 + 完全丸） ---- */
  --shape-small: 8px;
  --shape-medium: 12px;
  --shape-large: 16px;
  --shape-xlarge: 28px;
  --shape-full: 999px;
  --radius-control: var(--shape-small);
  --radius-card: var(--shape-medium);
  --chip-radius: var(--shape-full);

  /* ---- Elevation scale（MD3 dp0〜dp4相当） ---- */
  --elevation-0: none;
  --elevation-1: 0 1px 2px rgba(15, 41, 48, 0.10), 0 1px 3px 1px rgba(15, 41, 48, 0.08);
  --elevation-2: 0 1px 2px rgba(15, 41, 48, 0.12), 0 2px 6px 2px rgba(15, 41, 48, 0.10);
  --elevation-3: 0 1px 3px rgba(15, 41, 48, 0.14), 0 4px 8px 3px rgba(15, 41, 48, 0.12);
  --elevation-4: 0 2px 3px rgba(15, 41, 48, 0.16), 0 6px 10px 4px rgba(15, 41, 48, 0.14);
  --shadow-card: var(--elevation-1);
  --shadow-pop: var(--elevation-3);
  --ring: 0 0 0 3px rgba(15, 118, 144, 0.22);

  /* ---- State layer opacity（hover/press時の半透明オーバーレイ） ---- */
  --state-hover-opacity: 0.08;
  --state-press-opacity: 0.12;
}

* {
  box-sizing: border-box;
}

/* Ensure the `hidden` attribute wins over component display rules
   (e.g. .panel { display: grid }). */
[hidden] {
  display: none !important;
}

body {
  margin: 0;
  font-family: "M PLUS 1p", sans-serif;
  font-size: 15px;
  color: var(--text);
  background: var(--grad-app);
  background-attachment: fixed;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

.container {
  width: min(720px, 95vw);
  margin: 24px auto;
}

.home-container {
  width: min(1040px, 94vw);
  display: grid;
  gap: 18px;
}

.home-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 18px;
  align-items: end;
  padding: 12px 0 2px;
}

.home-hero h1 {
  margin: 0;
  font-size: 28px;
  line-height: 1.25;
}

.home-hero-copy {
  display: grid;
  gap: 8px;
}

.home-status-card {
  display: grid;
  gap: 8px;
  padding: 14px;
  border: 1px solid #c7e7d3;
  border-radius: var(--radius-card);
  background: #f1fbf5;
  box-shadow: var(--shadow-card);
}

.home-status-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 999px;
  background: #dcfce7;
  color: #15803d;
}

.home-status-card strong {
  line-height: 1.5;
}

.home-status-card span:last-child {
  font-size: 13px;
  line-height: 1.6;
  opacity: 0.78;
}

.role-entry-card h2 {
  margin: 0;
  font-size: 20px;
  line-height: 1.4;
  text-wrap: balance;
}

.role-entry-card .panel-actions {
  margin-top: auto;
}

.admin-body {
  min-height: 100vh;
}

.admin-container {
  width: min(1200px, calc(100vw - 16px));
  margin: 8px auto;
}

.admin-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.eyebrow {
  margin: 0 0 4px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #075985;
}

.header-stats {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.stat-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: var(--chip-radius);
  padding: 6px 12px;
  font-size: 12px;
}

.nav-chip {
  text-decoration: none;
  color: var(--text);
}

.state-banner {
  border-radius: var(--shape-small);
  margin-bottom: 12px;
  padding: 10px 14px;
  box-shadow: var(--elevation-1);
}

.state-banner-waiting {
  background: var(--md-surface-container-high);
  color: var(--md-on-surface-variant);
}

.state-banner-started {
  background: var(--md-success-container);
  color: var(--md-on-success-container);
}

.state-banner-closed {
  background: var(--md-error-container);
  color: var(--md-on-error-container);
}

.state-banner-inner {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.state-banner-stats {
  display: flex;
  gap: 12px;
  font-size: 13px;
}

.stats-dashboard {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 12px;
}

.guide-step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 2px 10px;
  align-items: center;
  padding: 10px 12px;
  border: 1px solid #86e0a8;
  border-radius: var(--shape-small);
  background: var(--md-success-container);
  box-shadow: var(--elevation-1);
}

.guide-step span {
  grid-row: span 2;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 999px;
  background: #dcfce7;
  color: #15803d;
  font-size: 13px;
  font-weight: 700;
}

.guide-step strong {
  font-size: 14px;
}

.guide-step small {
  color: #426d55;
  line-height: 1.5;
}

.stat-card {
  border: 1px solid var(--border);
  background: #fff;
  border-radius: var(--radius-card);
  padding: 12px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.stat-value {
  font-size: 20px;
  font-weight: 700;
}

.stat-label {
  font-size: 12px;
  opacity: 0.8;
}

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

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

.panel {
  display: grid;
  gap: 12px;
  padding: 18px;
  border-radius: var(--radius-card);
  border: 1px solid var(--border);
  background: var(--surface);
  box-shadow: var(--elevation-1);
  margin-bottom: 14px;
}

.panel-danger {
  border-color: rgba(220, 53, 69, 0.45);
  background: linear-gradient(180deg, rgba(220, 53, 69, 0.08), #ffffff 64px);
}

.panel-danger .panel-header h3 {
  color: #c0392b;
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.panel-header h3 {
  margin: 0;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* 見出し左の短いアクセント罫: 手で置いた見出し感を出す */
.panel-header h3::before {
  content: "";
  width: 4px;
  height: 1.1em;
  border-radius: 2px;
  background: var(--primary-color);
  flex-shrink: 0;
}

.panel-description {
  margin: 0;
  font-size: 13px;
  opacity: 0.8;
  line-height: 1.7;
}

.lead-text {
  margin: 0 0 16px;
  line-height: 1.7;
  max-width: 720px;
  color: #31596b;
}

.create-room-panel {
  gap: 14px;
  padding: 20px;
  background: #ffffff;
  box-shadow: var(--shadow-card);
}

.form-kicker {
  margin: 0 0 4px;
  font-size: 12px;
  font-weight: 700;
  color: #15803d;
  text-transform: uppercase;
}

.friendly-field {
  gap: 8px;
  font-weight: 700;
}

.friendly-field input {
  height: 50px;
  font-size: 16px;
  background: var(--md-surface-dim);
}

.field-help {
  margin: -6px 0 0;
  font-size: 13px;
  color: #4b7a90;
}

.system-overview {
  background: #fbfeff;
}

.overview-grid,
.overview-list {
  display: grid;
  gap: 10px;
}

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

.overview-item {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
}

.overview-item i {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: #e0f2fe;
  color: var(--primary-color);
  font-size: 14px;
}

.overview-item strong {
  display: block;
  margin-bottom: 4px;
  font-size: 14px;
}

.overview-item span {
  display: block;
  font-size: 12px;
  line-height: 1.6;
  opacity: 0.82;
}

.home-features {
  display: grid;
  gap: 16px;
  padding: 8px 0;
}

.home-feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.home-feature-card {
  display: grid;
  gap: 8px;
}

.home-feature-card img {
  display: block;
  width: 100%;
  height: 150px;
  object-fit: cover;
  object-position: top;
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  border: 1px solid #e2e8f0;
}

.home-feature-card h3 {
  margin: 4px 0 0;
  font-size: 16px;
  line-height: 1.4;
}

.home-feature-card p {
  margin: 0;
  font-size: 13px;
  line-height: 1.6;
  opacity: 0.82;
}

.home-steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.home-step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 4px 10px;
  align-items: start;
  padding: 12px;
  border: 1px solid #f3d58a;
  border-radius: 8px;
  background: #fffaf0;
}

.home-step span {
  grid-row: span 2;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 999px;
  background: #f59e0b;
  color: #fff;
  font-size: 13px;
  font-weight: 700;
}

.home-step strong {
  font-size: 14px;
}

.home-step p {
  margin: 0;
  font-size: 12px;
  line-height: 1.6;
  color: #6f5221;
}

.home-feedback {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 16px 18px;
  border: 1px solid #c7e7d3;
  border-radius: var(--radius-card);
  background: #f1fbf5;
  box-shadow: var(--shadow-card);
}

.home-feedback-copy {
  display: grid;
  gap: 4px;
}

.home-feedback-copy h2 {
  margin: 0;
  font-size: 18px;
}

.home-feedback-copy p {
  margin: 0;
  font-size: 13px;
  line-height: 1.6;
  color: #3f5d4b;
}

.home-feedback .btn-link {
  white-space: nowrap;
}

.panel-actions {
  display: flex;
  gap: 8px;
}

label {
  display: grid;
  gap: 6px;
}

input,
button,
select {
  height: 44px;
  border-radius: var(--radius-control);
  border: 1px solid var(--border-strong);
  padding: 0 12px;
  font-family: inherit;
  font-size: 14px;
}

input,
select,
textarea {
  background: #fff;
  transition: border-color 0.15s, box-shadow 0.15s;
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: var(--ring);
}

textarea {
  border-radius: var(--radius-control);
  border: 1px solid var(--border-strong);
  padding: 8px 10px;
  font-family: inherit;
  font-size: 1rem;
  resize: vertical;
  min-height: 80px;
  width: 100%;
}

/* MD3 filled button（既定のbutton外観） */
button {
  position: relative;
  cursor: pointer;
  background: var(--primary-color);
  color: var(--md-on-primary);
  border: none;
  font-weight: 600;
  box-shadow: var(--elevation-1);
  transition: background-color 0.15s ease, box-shadow 0.15s ease;
  overflow: hidden;
}

button:hover:not(:disabled) {
  background: var(--primary-strong);
  box-shadow: var(--elevation-2);
}

button:active:not(:disabled) {
  background: var(--primary-strong);
  box-shadow: var(--elevation-1);
}

button:focus-visible {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.38;
  box-shadow: none;
}

/* MD3 text button相当 */
.btn-link {
  position: relative;
  overflow: hidden;
  min-height: 44px;
  border-radius: var(--radius-control);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0 14px;
  text-decoration: none;
  background: var(--primary-color);
  color: var(--md-on-primary);
  font-weight: 600;
}
.btn-link:hover:not(:disabled) {
  background: var(--primary-strong);
}

/* MD3 outlined button相当 */
.btn-secondary-outline {
  background: transparent;
  color: var(--primary-strong);
  border: 1px solid var(--border-strong);
  box-shadow: none;
}
.btn-secondary-outline:hover:not(:disabled) {
  background: var(--md-primary-container);
  border-color: var(--primary-color);
  box-shadow: none;
}

.btn-secondary {
  background: #5c6f74;
}
.btn-secondary:hover:not(:disabled) {
  background: var(--md-on-surface-variant);
}

.btn-small {
  height: 36px;
  min-width: 60px;
  padding: 0 12px;
}

.room-info-line {
  margin: 0 0 16px;
  font-size: 15px;
}

.join-room-card {
  margin: 20px 0 16px;
  gap: 16px;
}

.join-room-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.join-room-heading > i {
  color: var(--primary-color);
  font-size: 24px;
}

.join-room-kicker {
  margin: 0 0 4px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.join-room-heading h2 {
  margin: 0;
  font-size: clamp(20px, 5vw, 28px);
  line-height: 1.3;
}

.join-room-details {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px 20px;
  margin: 0;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}

.join-room-details > div:last-child {
  grid-column: 1 / -1;
}

.join-room-details dt {
  margin-bottom: 3px;
  color: var(--muted);
  font-size: 12px;
}

.join-room-details dd {
  margin: 0;
  overflow-wrap: anywhere;
  font-weight: 600;
}

@media (max-width: 400px) {
  .join-room-details {
    grid-template-columns: 1fr;
  }

  .join-room-details > div:last-child {
    grid-column: auto;
  }
}

.submitted-row {
  margin: 4px 0;
}

.room-hero {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border-radius: var(--radius-card);
  border: 1px solid var(--border);
  background: #f3faff;
}

.room-hero-label {
  margin: 0 0 4px;
  font-size: 12px;
  opacity: 0.75;
}

.room-hero-id {
  font-size: 24px;
}

.join-url-block {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid #e2e8f0;
}

.obs-url-row input {
  width: 100%;
}

a.obs-pip-btn { text-decoration: none; }

.obs-pip-settings {
  padding: 8px 10px;
  border-top: 1px solid #334155;
  display: grid;
  gap: 6px;
  background: #1e293b;
}

.obs-pip-settings .obs-url-row input {
  flex: 1;
  min-width: 0;
  height: 32px;
  font-size: 11px;
  background: #0f172a;
  color: #7dd3fc;
  border: 1px solid #334155;
  border-radius: 6px;
  padding: 0 8px;
}

.obs-pip-divider {
  border: none;
  border-top: 1px solid #334155;
  margin: 4px 0;
}

.obs-pip-section-label {
  margin: 0;
  font-size: 11px;
  color: #64748b;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.obs-bg-radio input[type="radio"] {
  height: auto;
  width: auto;
  border-radius: 999px;
  border: none;
  padding: 0;
  cursor: pointer;
  accent-color: #7dd3fc;
}
.sortable-ghost { opacity: 0.4; }
.sortable-chosen { background: #e0f2fe !important; }

.answer-item-header {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  align-items: center;
}

.answer-item-meta {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  font-size: 13px;
  opacity: 0.82;
}

.answer-item-actions {
  display: grid;
  grid-template-columns: repeat(2, auto);
  gap: 8px;
  align-content: start;
}

.rooms-list {
  display: grid;
  gap: 10px;
}

.room-list-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  align-items: center;
  padding: 12px;
  border-radius: var(--radius-card);
  border: 1px solid var(--border);
  background: #fff;
}

/* アーカイブは見た目だけの区別。ルームの機能は稼働中と変わらない。 */
.room-list-item.is-archived {
  opacity: 0.62;
}

.room-list-main {
  display: grid;
  gap: 6px;
}

.room-list-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
}

.room-fields {
  display: flex;
  gap: 8px;
  align-items: center;
}

.room-episode {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  opacity: 0.7;
}

.room-episode-input {
  width: 4.5rem;
}

/* ルーム一覧は1行に操作が3つ並ぶので、既定の44pxだと行が重くなる。
   この一覧の中だけ詰める（狭い画面では下のメディアクエリで44pxに戻す）。 */
.room-fields input,
.room-list-item .btn-small,
.room-list-item .btn-link,
.program-actions .btn-small {
  height: 32px;
  min-height: 32px;
  min-width: 0;
  padding: 0 10px;
  font-size: 13px;
}

.room-list-item .btn-link {
  box-shadow: none;
}

.room-program-select {
  max-width: 14rem;
  height: 32px;
  font-size: 13px;
}

/* ニコニコ風のタグ編集: 枠は input のように見せ、中身はチップ + 入力欄。 */
.tag-editor {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px;
  padding: 4px 6px;
  min-height: 34px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-control);
  background: #fff;
}

.tag-editor:focus-within {
  border-color: var(--primary-color);
  box-shadow: var(--ring);
}

.tag-chip {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  padding: 2px 2px 2px 8px;
  border-radius: var(--shape-full);
  background: var(--md-surface-container);
  font-size: 12px;
  line-height: 1.6;
}

.tag-chip-remove {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  min-width: 0;
  min-height: 0;
  padding: 0;
  border: none;
  border-radius: 999px;
  background: transparent;
  box-shadow: none;
  color: var(--muted);
  font-size: 11px;
}

.tag-chip-remove:hover:not(:disabled) {
  background: var(--md-error-container);
  color: var(--md-on-error-container);
  box-shadow: none;
}

.tag-input {
  flex: 1 1 7rem;
  min-width: 5rem;
  height: 24px;
  padding: 0 4px;
  border: none;
  background: transparent;
  font-size: 13px;
}

.tag-input:focus {
  outline: none;
  border: none;
  box-shadow: none;
}

.program-group {
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 8px 12px 12px;
}

.program-summary {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  cursor: pointer;
  padding: 4px 0;
  font-weight: 700;
}

.program-count {
  font-size: 12px;
  font-weight: 700;
  padding: 1px 8px;
  border-radius: 999px;
  border: 1px solid var(--border);
  opacity: 0.8;
}

.program-actions {
  display: flex;
  gap: 6px;
  margin-left: auto;
}

.archive-group {
  margin-top: 10px;
}

.archive-group > summary {
  cursor: pointer;
  font-size: 13px;
  opacity: 0.75;
  padding: 4px 0;
}

.archive-group > .rooms-list {
  margin-top: 8px;
}

.room-list-meta {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  font-size: 13px;
  opacity: 0.85;
}

.room-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 700;
}

.room-status::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--success-color);
}

.empty-state {
  display: grid;
  gap: 4px;
  padding: 16px;
  border-radius: 8px;
  border: 1px dashed var(--border);
  background: #ffffffa6;
}

.empty-state span {
  font-size: 13px;
  line-height: 1.6;
  color: #4b7a90;
}

.result-line {
  min-height: 1.4em;
  font-weight: 600;
}

/* === Role Cards (login page) === */
.role-cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  margin-bottom: 16px;
}

.role-card {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  background: #fff;
}

.role-card-icon {
  font-size: 20px;
  color: var(--primary-color);
  margin-top: 2px;
  flex-shrink: 0;
}

.role-card strong {
  display: block;
  margin-bottom: 4px;
  font-size: 13px;
}

.role-card p {
  margin: 0;
  font-size: 12px;
  opacity: 0.75;
  line-height: 1.5;
}

/* === Phase Status Banner (room page) === */
.state-banner-icon {
  font-size: 18px;
  flex-shrink: 0;
}

/* === Submitted Detail (room page) === */
.submitted-detail {
  display: grid;
  gap: 6px;
}

.submitted-label {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  opacity: 0.7;
  margin-right: 8px;
  min-width: 60px;
}

/* === System Message (blm-qs MessageSystem 互換) === */
.system-message {
  display: none;
  align-items: flex-start;
  gap: 10px;
  padding: 12px 14px;
  border-radius: 10px;
  margin-bottom: 12px;
  font-size: 14px;
  line-height: 1.5;
}

.system-message.error   { background: #fef2f2; border: 1px solid #fca5a5; color: #991b1b; }
.system-message.warning { background: #fffbeb; border: 1px solid #fcd34d; color: #92400e; }
.system-message.success { background: #f0fdf4; border: 1px solid #86efac; color: #14532d; }
.system-message.info    { background: #eff6ff; border: 1px solid #93c5fd; color: #1e40af; }

.message-content { flex: 1; }

.message-close {
  height: auto !important;
  width: 24px !important;
  min-width: 24px !important;
  padding: 0 !important;
  background: transparent !important;
  border: none !important;
  color: inherit;
  opacity: 0.5;
  cursor: pointer;
  font-size: 12px;
  flex-shrink: 0;
}

.message-close:hover { opacity: 1; }

@media (max-width: 768px) {
  .home-hero,
  .home-steps,
  .operator-guide {
    grid-template-columns: 1fr;
  }

  .home-feature-grid {
    grid-template-columns: 1fr;
  }

  .home-hero h1 {
    font-size: 28px;
  }

  .home-status-card {
    box-shadow: none;
  }

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

  .content-grid {
    grid-template-columns: 1fr;
  }

  .panel-actions {
    flex-direction: column;
  }

  .role-cards {
    grid-template-columns: 1fr;
  }

  .overview-grid {
    grid-template-columns: 1fr;
  }

  .overview-item {
    min-height: 0;
  }

  .obs-url-row,
  .room-hero,
  .room-list-item,
  .answer-item {
    grid-template-columns: 1fr;
  }

  .program-actions {
    margin-left: 0;
  }

  /* タッチでは44pxの操作対象に戻す。 */
  .room-fields input,
  .room-list-item .btn-small,
  .room-list-item .btn-link,
  .program-actions .btn-small,
  .room-program-select {
    height: 44px;
    min-height: 44px;
    font-size: 14px;
  }

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

@media (max-width: 480px) {
  .admin-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .header-stats {
    width: 100%;
  }

  .btn-link {
    width: 100%;
  }
}

.inline-fields {
  display: flex;
  gap: 0.5rem;
  align-items: stretch;
}

.inline-fields input {
  flex: 1;
}

.inline-add {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: flex-end;
  margin-bottom: 1rem;
}

.inline-add label {
  flex: 1;
  min-width: 160px;
}

/* ===== 共通ヘッダー / フッター ===== */
.site-maintenance-banner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 40px;
  padding: 8px 24px;
  background: var(--md-error);
  color: var(--md-on-error);
  font-size: 14px;
  text-align: center;
}

.site-maintenance-banner[hidden] {
  display: none !important;
}

.site-maintenance-banner strong {
  font-weight: 800;
}

.site-maintenance-banner span {
  opacity: 0.9;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 60px;
  padding: 8px 24px;
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  color: #fff;
  box-shadow: 0 2px 8px rgba(7, 48, 66, 0.15);
}

.site-header > [hidden] {
  display: none !important;
}

.site-brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 18px;
  letter-spacing: 0.02em;
  color: #fff;
  text-decoration: none;
}

.site-brand-logo {
  display: block;
  width: 100px;
  height: 40px;
  object-fit: contain;
}

.site-primary-nav {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.site-primary-nav > [hidden] {
  display: none !important;
}

.site-primary-nav a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 34px;
  padding: 6px 10px;
  border-radius: var(--shape-full);
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
}

.site-primary-nav a:hover,
.site-primary-nav a:focus-visible {
  background: rgba(255, 255, 255, 0.18);
}

/* ログイン状態は /api/app-info の応答後に決まる。確定前に中身を出すと、
   ログイン済みでも一瞬「ログイン」が見えて幅が変わるので、枠だけ先に確保する。 */
.site-auth {
  display: inline-flex;
  align-items: center;
  justify-content: flex-end;
  margin-left: auto;
  min-width: 132px;
  min-height: 34px;
}

.site-auth > [hidden] {
  display: none !important;
}

.site-auth[data-auth="pending"] > .site-user,
.site-auth[data-auth="pending"] > .site-login {
  display: none !important;
}

.site-auth:not([data-auth="pending"]) > .site-auth-skeleton {
  display: none;
}

.site-auth-skeleton {
  width: 120px;
  height: 34px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.18);
}

.site-user {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.site-user > [hidden] {
  display: none !important;
}

.site-user-avatar {
  width: 28px;
  height: 28px;
  border-radius: 999px;
  object-fit: cover;
  background: rgba(255, 255, 255, 0.18);
}

.site-username {
  font-size: 14px;
  font-weight: 700;
  max-width: 240px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.site-icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border: none;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.18);
  color: #fff;
  font-size: 15px;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.15s ease;
}

.site-icon-btn:hover {
  background: rgba(255, 255, 255, 0.32);
}

.site-login {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 34px;
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.18);
}

.site-login:hover {
  background: rgba(255, 255, 255, 0.32);
}

@media (max-width: 768px) {
  .site-maintenance-banner {
    flex-wrap: wrap;
    padding-inline: 12px;
  }

  .site-header {
    flex-wrap: wrap;
    padding-inline: 12px;
  }

  .site-brand {
    flex: 1 1 auto;
  }

  .site-primary-nav {
    order: 3;
    width: 100%;
  }

  .site-primary-nav a {
    flex: 1 1 auto;
    justify-content: center;
  }

  .site-username {
    max-width: 120px;
  }
}

/* Private personal home */
.my-page {
  display: grid;
  gap: 32px;
  padding-block: 32px 56px;
}

.my-profile {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 20px;
  align-items: center;
  padding: 24px;
}

.my-profile-avatar,
.my-team-icon {
  display: grid;
  flex: 0 0 auto;
  place-items: center;
  overflow: hidden;
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
  font-weight: 700;
}

.my-profile-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  font-size: 28px;
}

.my-profile-avatar img,
.my-team-icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.my-profile-copy,
.my-team-copy {
  min-width: 0;
}

.my-profile-copy h1,
.my-page-heading h2 {
  margin: 0;
}

.my-profile-summary {
  margin: 6px 0 0;
  color: var(--muted);
}

.my-page-section {
  display: grid;
  gap: 14px;
}

.my-page-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 16px;
}

.recent-room-grid,
.my-team-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.recent-room-card,
.my-team-card {
  min-width: 0;
  border: 1px solid var(--border);
  border-radius: var(--shape-medium);
  background: var(--md-surface-container-lowest, #fff);
  color: inherit;
  text-decoration: none;
  transition: border-color 140ms ease, box-shadow 140ms ease, transform 140ms ease;
}

.recent-room-card {
  display: grid;
  gap: 12px;
  min-height: 166px;
  padding: 18px;
}

.recent-room-card:hover,
.my-team-card:hover {
  border-color: var(--md-primary);
  box-shadow: var(--shadow-1);
  transform: translateY(-1px);
}

.recent-room-card h3,
.my-team-card h3 {
  margin: 0;
  overflow-wrap: anywhere;
}

.recent-room-status {
  justify-self: start;
  padding: 3px 8px;
  border-radius: var(--shape-full);
  background: var(--md-success-container);
  color: var(--md-on-success-container);
  font-size: 11px;
  font-weight: 700;
}

.recent-room-status.is-archived {
  background: var(--md-surface-container-high);
  color: var(--muted);
}

.recent-room-team {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
}

.my-room-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: auto;
}

.my-room-tag {
  padding: 3px 8px;
  border-radius: var(--shape-full);
  background: var(--md-secondary-container);
  color: var(--md-on-secondary-container);
  font-size: 11px;
}

.my-team-card {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr) auto;
  gap: 14px;
  align-items: center;
  padding: 18px;
}

.my-team-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--shape-medium);
  font-size: 18px;
}

.my-team-copy {
  display: grid;
}

.my-team-copy > span {
  margin: 5px 0 0;
  color: var(--muted);
  font-size: 12px;
}

.my-team-counts {
  grid-column: 2 / 3;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  color: var(--muted);
  font-size: 12px;
}

.my-team-card > .fa-chevron-right {
  grid-column: 3;
  grid-row: 1;
  color: var(--muted);
}

.recent-room-card time {
  color: var(--muted);
  font-size: 12px;
}

.my-empty-state {
  grid-column: 1 / -1;
  display: grid;
  gap: 6px;
  padding: 28px;
  border: 1px dashed var(--border);
  border-radius: var(--shape-medium);
  color: var(--muted);
  text-align: center;
}

@media (max-width: 900px) {
  .recent-room-grid,
  .my-team-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .my-page {
    gap: 26px;
    padding-block: 20px 40px;
  }

  .my-profile {
    grid-template-columns: auto minmax(0, 1fr);
    gap: 14px;
    padding: 18px;
  }

  .my-profile-avatar {
    width: 64px;
    height: 64px;
  }

  .my-profile > .btn-small {
    grid-column: 1 / -1;
    width: 100%;
  }

  .recent-room-grid,
  .my-team-grid {
    grid-template-columns: 1fr;
  }
}

/* チームをGitHub Organizationのように独立管理するページ。 */
.team-page {
  width: min(960px, 94vw);
  display: grid;
  gap: 16px;
}

.back-link {
  width: fit-content;
  color: var(--muted);
  text-decoration: none;
}

.team-org-header {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 16px;
  align-items: center;
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: var(--shape-large);
  background: var(--surface);
  box-shadow: var(--elevation-1);
}

.team-org-icon,
.member-avatar,
.avatar-fallback {
  display: inline-grid;
  place-items: center;
  flex: 0 0 auto;
  overflow: hidden;
  color: var(--md-on-primary);
  background: var(--avatar-color, var(--md-primary));
  font-weight: 700;
}

.team-org-icon {
  width: 72px;
  height: 72px;
  border-radius: var(--shape-medium);
  font-size: 28px;
}

.team-org-icon img,
.member-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.team-org-summary h1,
.team-org-summary p {
  margin: 0;
}

.team-org-description,
.team-org-counts {
  color: var(--muted);
}

.team-org-counts {
  margin-top: 4px !important;
  font-size: 13px;
  font-weight: 500;
}

.team-switch {
  display: grid;
  gap: 4px;
  color: var(--muted);
  font-size: 12px;
}

.team-tabs {
  display: flex;
  gap: 4px;
  overflow-x: auto;
  border-bottom: 1px solid var(--border);
}

.team-tabs a {
  display: inline-flex;
  gap: 8px;
  align-items: center;
  height: 44px;
  padding: 8px 14px;
  border-bottom: 3px solid transparent;
  color: var(--muted);
  text-decoration: none;
  white-space: nowrap;
}

.team-tabs a:focus-visible {
  outline: 2px solid var(--md-primary);
  outline-offset: -2px;
}

.team-tabs a:hover,
.team-tabs a.is-active {
  color: var(--text);
  border-bottom-color: var(--md-primary);
}

.team-section {
  gap: 14px;
}

.team-room-list,
.team-room-program {
  display: grid;
  gap: 12px;
}

.team-room-program + .team-room-program {
  margin-top: 8px;
}

.team-room-program h3 {
  margin: 0;
  font-size: 14px;
}

.team-room-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.team-room-card {
  display: grid;
  gap: 8px;
  min-width: 0;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: var(--shape-medium);
  color: inherit;
  text-decoration: none;
}

.team-room-card:hover {
  border-color: var(--md-primary);
  background: var(--md-surface-container-low);
}

.team-room-card > div:first-child {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 10px;
  align-items: baseline;
}

.team-room-card strong {
  overflow-wrap: anywhere;
}

.team-room-card small,
.team-room-card > div:first-child span {
  color: var(--muted);
}

.team-archived-rooms {
  margin-top: 12px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}

.team-archived-rooms > summary {
  margin-bottom: 14px;
  cursor: pointer;
  color: var(--muted);
  font-weight: 700;
}

.team-section .panel-header h2,
.danger-zone .panel-header h2 {
  margin: 0;
  font-size: 18px;
}

.team-search {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 8px;
  align-items: center;
  padding: 0 12px;
  border: 1px solid var(--border);
  border-radius: var(--shape-small);
  background: var(--surface);
}

.team-search input {
  border: 0;
  box-shadow: none;
}

.team-member-list,
.pending-invites,
.team-simple-list {
  display: grid;
}

.team-member,
.pending-invite,
.team-simple-row {
  display: grid;
  align-items: center;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}

.team-member {
  grid-template-columns: auto minmax(0, 1fr) minmax(120px, auto) auto;
}

.member-avatar,
.member-avatar .avatar-fallback {
  width: 44px;
  height: 44px;
  border-radius: 50%;
}

.member-avatar {
  position: relative;
}

.member-avatar img {
  position: absolute;
  inset: 0;
}

.team-member-copy {
  display: grid;
  min-width: 0;
}

.team-member-copy span,
.pending-invite span,
.team-simple-row span {
  color: var(--muted);
  font-size: 12px;
}

.member-menu {
  position: relative;
}

.member-menu summary {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: var(--shape-full);
  cursor: pointer;
  list-style: none;
}

.member-menu button {
  position: absolute;
  z-index: 2;
  right: 0;
  min-width: 150px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: var(--shape-small);
  color: var(--md-error);
  background: var(--surface);
  box-shadow: var(--elevation-2);
}

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

.pending-invite > div {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 12px;
}

.team-simple-row {
  grid-template-columns: minmax(0, 1fr) auto;
}

.team-simple-row > div,
.team-icon-editor {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.team-icon-editor .team-org-icon {
  width: 64px;
  height: 64px;
}

/* label は button 系スタイル（display/font/cursor）を継承しないので補う */
.team-icon-editor label.btn-small {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border-radius: var(--radius-control);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
}

.danger-zone {
  margin-top: 16px;
  border: 1px solid var(--md-error);
}

.danger-zone .panel-header {
  color: var(--md-error);
}

@media (max-width: 640px) {
  .team-room-grid {
    grid-template-columns: 1fr;
  }
}

.danger-action {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px 16px;
  align-items: center;
  padding: 14px 0;
  border-top: 1px solid var(--border);
}

.danger-action .field-label,
.danger-action input {
  grid-column: 1;
}

.danger-action > .btn-danger {
  grid-column: 2;
  grid-row: 2 / 4;
}

.btn-danger {
  border: 1px solid var(--md-error);
  color: var(--md-on-primary);
  background: var(--md-error);
}

.btn-danger:disabled {
  opacity: 0.45;
}

.empty-state {
  padding: 20px;
  color: var(--muted);
  text-align: center;
}

@media (max-width: 640px) {
  .team-org-header {
    grid-template-columns: auto minmax(0, 1fr);
    padding: 16px;
  }

  .team-switch {
    grid-column: 1 / -1;
  }

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

  .team-member > select {
    grid-column: 2 / -1;
  }

  .danger-action {
    grid-template-columns: 1fr;
  }

  .danger-action > .btn-danger,
  .danger-action .field-label,
  .danger-action input {
    grid-column: 1;
    grid-row: auto;
  }
}

/* スティッキーフッター: 本文が短くてもフッターを最下部へ */
body.has-site-chrome {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

body.has-site-chrome > .site-header {
  flex-shrink: 0;
}

body.has-site-chrome > .site-footer {
  margin-top: auto;
  flex-shrink: 0;
}

body.has-site-chrome > main {
  flex: 1 0 auto;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 12px 20px;
  font-size: 12px;
  color: #4b7a90;
  border-top: 1px solid var(--border);
  background: #ffffffcc;
}

.site-version {
  opacity: 0.75;
  font-variant-numeric: tabular-nums;
}

/* === Participant answer flow (PHP版 操作感) === */
.char-counter {
  margin-top: 6px;
  font-size: 12px;
  color: #4b7a90;
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.answer-mode-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}

.answer-mode-tab {
  flex: 1;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-control);
  background: var(--surface);
  color: var(--muted);
  cursor: pointer;
  font-size: 14px;
  font-weight: 700;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}

.answer-mode-tab:hover {
  background: var(--md-surface-container);
  color: var(--text);
}

.answer-mode-tab.is-active {
  background: var(--primary-color);
  color: var(--md-on-primary);
  border-color: var(--primary-color);
}

#answer-canvas {
  display: block;
  width: 100%;
  aspect-ratio: 600 / 300;
  background: #1a1a1a;
  border-radius: 6px;
  touch-action: none;
  cursor: crosshair;
}

.drawing-actions {
  display: flex;
  gap: 8px;
  margin-top: 8px;
}

.participant-greeting {
  margin: 4px 0 12px;
  font-size: 16px;
  font-weight: 700;
  color: var(--text, #0f2b38);
}

.participant-rename {
  margin-top: 12px;
  text-align: center;
}

.spinner {
  width: 40px;
  height: 40px;
  margin: 24px auto;
  border: 4px solid rgba(14, 165, 233, 0.2);
  border-top-color: var(--primary-color, #0EA5E9);
  border-radius: 50%;
  animation: spinner-rotate 0.9s linear infinite;
}

@keyframes spinner-rotate {
  to { transform: rotate(360deg); }
}

.batch-group {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

.batch-group-label {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  font-weight: 700;
  color: #475569;
  margin-right: 2px;
}

.btn-batch {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
}
.btn-batch:hover { background: var(--md-surface-container); }
.btn-batch.batch-correct { border-color: var(--answer-correct); color: var(--answer-correct); }
.btn-batch.batch-incorrect { border-color: var(--answer-incorrect); color: var(--answer-incorrect); }
.btn-batch.is-active { background: var(--md-primary-container); border-color: var(--md-primary); color: var(--md-on-primary-container); }

/* 配信表示切替系（OBSモード・切替アニメーション）専用のtertiaryカラー */
.btn-batch.btn-tertiary { background: transparent; border-color: var(--md-tertiary); color: var(--md-tertiary); }
.btn-batch.btn-tertiary:hover:not(:disabled) { background: var(--md-tertiary-container); }
.btn-batch.btn-tertiary.is-active { background: var(--md-tertiary); border-color: var(--md-tertiary); color: #fff; }

.answer-judge-actions {
  grid-column: 1 / -1;
  display: flex;
  gap: 6px;
}
.btn-judge.judge-correct.is-active { background: var(--answer-correct); border-color: var(--answer-correct); color: #fff; }
.btn-judge.judge-incorrect.is-active { background: var(--answer-incorrect); border-color: var(--answer-incorrect); color: #fff; }

/* === Admin redesign: unified top bar, tabs, compact rows === */
/* ダーク運用コンソール風トップバー（サイトヘッダーと統一） */
.admin-topbar {
  position: relative;
  display: flex;
  align-items: stretch;
  gap: 12px;
  flex-wrap: wrap;
  padding: 10px 14px;
  margin-bottom: 12px;
  border: 1px solid var(--md-inverse-surface-high);
  border-radius: var(--radius-card);
  background: var(--md-inverse-surface);
  color: var(--md-on-inverse-surface);
  box-shadow: var(--elevation-1);
  overflow: hidden;
}

.topbar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 190px;
}
.topbar-brand > i {
  width: 38px;
  height: 38px;
  border-radius: var(--shape-small);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-color);
  color: var(--md-on-primary);
  font-size: 17px;
  box-shadow: var(--elevation-2);
}

/* state banner reused as a compact status chip in the top bar */
.admin-topbar .state-banner.status-chip {
  margin: 0;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 700;
}
.metric i { color: var(--md-inverse-primary); }

.room-meta-topbar {
  display: flex;
  flex: 1 1 240px;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  min-width: 0;
}

.room-meta-topbar > span {
  overflow: hidden;
  color: var(--md-inverse-on-surface-variant, #cbd5e1);
  font-size: 12px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.room-meta-topbar .btn-secondary-outline {
  flex: 0 0 auto;
  border-color: var(--md-inverse-outline);
  color: var(--md-on-inverse-surface);
}

.admin-tab {
  position: relative;
  overflow: hidden;
  appearance: none;
  border: 1px solid var(--border);
  border-radius: var(--shape-full);
  background: var(--surface);
  margin-bottom: 0;
  padding: 10px 16px;
  font-size: 14px;
  font-weight: 700;
  color: var(--muted);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  transition: background 0.15s, color 0.15s, box-shadow 0.15s;
}
.admin-tab:hover { background: var(--md-surface-container); color: var(--text); }
.admin-tab.is-active {
  background: var(--md-inverse-surface);
  border-color: transparent;
  color: var(--md-on-inverse-surface);
  box-shadow: none;
}

/* batch dropdown menus */
.batch-menu { position: relative; }
.batch-menu > summary {
  list-style: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  height: 32px;
  padding: 0 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
  font-size: 13px;
  font-weight: 700;
  color: #0f2b38;
}
.batch-menu > summary::-webkit-details-marker { display: none; }
.batch-menu > summary:hover { background: #eef2f7; }
.batch-caret { font-size: 10px; opacity: 0.7; transition: transform 0.15s; }
.batch-menu[open] .batch-caret { transform: rotate(180deg); }
.batch-menu-list {
  position: absolute;
  z-index: 30;
  top: calc(100% + 4px);
  left: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 180px;
  padding: 6px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #fff;
  box-shadow: var(--shadow-card);
}
.batch-menu-list .btn-batch { justify-content: flex-start; width: 100%; }
.batch-spacer { flex: 1 1 auto; }
.btn-obs-on {
  background: var(--success-color);
  border: 1px solid var(--success-color);
  color: #fff;
}
.btn-obs-on:hover { background: #0f5433; }

/* always-visible participant URL bar */
.join-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  margin-bottom: 12px;
  border: 1px solid var(--border);
  border-radius: var(--shape-medium);
  background: var(--surface);
  box-shadow: var(--elevation-1);
}
.join-bar-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 700;
  color: #0369a1;
  white-space: nowrap;
  flex-shrink: 0;
}
.join-bar input {
  flex: 1 1 auto;
  min-width: 0;
  height: 34px;
  padding: 0 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
  font-size: 13px;
}
.join-bar .btn-small { flex-shrink: 0; }
.field-label {
  margin: 4px 0 0;
  font-size: 13px;
  font-weight: 700;
  color: #475569;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

@media (max-width: 768px) {
  .admin-topbar { gap: 8px; }
  .room-meta-topbar {
    order: 4;
    flex-basis: 100%;
    justify-content: space-between;
  }
  .answers-list .answer-item { flex-wrap: wrap; }
  .answer-item-main { flex: 1 1 100%; order: -1; }
  .join-bar { flex-wrap: wrap; }
  .join-bar input { flex-basis: 100%; order: 3; }
}

/* === Refined theme layer === */
h1, h2, h3, .topbar-title { letter-spacing: 0.01em; }

/* batch dropdown triggers */
.batch-menu > summary {
  transition: background 0.15s, border-color 0.15s, box-shadow 0.15s;
}
.batch-menu > summary:hover { border-color: var(--primary-color); box-shadow: var(--ring); }

.answer-state-badge i {
  font-size: 10px;
}

.answer-obs-toggle {
  min-width: 112px;
}

.btn-judge i {
  font-size: 13px;
}

@media (max-width: 900px) {
  .tab-panel[data-tab-panel="live"],
  .tab-panel[data-tab-panel="questions"],
  .tab-panel[data-tab-panel="settings"] {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .topbar-brand {
    min-width: 0;
  }

  .answer-title-row {
    grid-template-columns: 1fr;
  }

  .answer-name {
    max-width: 100%;
  }

  .answer-obs-toggle {
    flex: 1 1 160px;
  }
}

/* legal pages */
.legal-container {
  width: min(860px, 94vw);
}

.legal-panel {
  gap: 14px;
  line-height: 1.85;
}

.legal-panel h2 {
  margin: 12px 0 0;
  font-size: 18px;
}

.legal-panel p,
.legal-panel ul {
  margin: 0;
}

.legal-panel ul {
  padding-left: 1.4em;
}

.legal-updated {
  color: var(--muted);
  font-size: 13px;
}

.legal-note {
  padding: 10px 14px;
  border-left: 3px solid var(--accent-color);
  background: rgba(0, 0, 0, 0.04);
  border-radius: 6px;
  font-size: 13px;
  color: var(--muted);
}

.site-footer-links {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
}

.site-footer-links a {
  color: inherit;
  text-decoration: none;
}

.site-footer-links a:hover {
  color: var(--primary-strong);
  text-decoration: underline;
}

@media (max-width: 480px) {
  .site-footer {
    flex-direction: column;
    gap: 6px;
  }
}

/* === Practical refinement layer === */

h1,
h2,
h3,
.topbar-title {
  letter-spacing: 0;
}

.site-header {
  min-height: 58px;
  background: #172026;
  border-bottom: 1px solid #263640;
  box-shadow: none;
}

.site-login,
.site-icon-btn {
  background: #263640;
  border: 1px solid #36505c;
}

.site-login:hover,
.site-icon-btn:hover {
  background: #324852;
}

.container,
.admin-container {
  margin-top: 20px;
}

.home-container {
  gap: 20px;
}

.home-hero {
  padding-top: 18px;
}

.home-hero h1 {
  font-size: 32px;
}

.eyebrow,
.form-kicker {
  color: #0e7490;
  letter-spacing: 0.12em;
}

.lead-text,
.panel-description,
.field-help {
  color: var(--muted);
}

.lead-text {
  max-width: 760px;
  font-size: 15px;
  line-height: 1.8;
}

.panel-description {
  max-width: 760px;
}

.home-status-card span:last-child,
.overview-item span,
.home-step p,
.role-card p,
.guide-step small {
  color: var(--muted);
  opacity: 1;
}

.home-feedback-copy h2 {
  font-size: 17px;
}

.create-room-panel,
.system-overview,
.stat-card,
.role-card,
.room-list-item,
.program-group,
.home-status-card,
.home-feedback {
  border-color: var(--border);
  background: var(--surface);
  box-shadow: var(--elevation-1);
}

.panel-header h3::before {
  width: 3px;
}

.home-status-icon,
.overview-item i {
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
}

.home-status-card strong {
  color: var(--text);
}

.overview-item,
.home-step,
.empty-state {
  border-color: var(--border);
  background: var(--surface);
}

.home-step span {
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
}

.site-footer {
  color: var(--muted);
  background: #ffffff;
}

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

.panel-header h3,
.site-brand,
.topbar-brand {
  gap: 6px;
}

.overview-item,
.role-card {
  padding-left: 14px;
}

.stat-card {
  gap: 0;
}

@media (max-width: 768px) {
  .home-hero {
    align-items: start;
  }
}

.gradient-stop-handle {
  position: absolute;
  top: 2px;
  left: 3px;
  width: 14px;
  height: 26px;
  padding: 0;
  border: 2px solid #fff;
  border-radius: 4px;
  background: var(--stop-color, #fff);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.45);
  cursor: ew-resize;
}

.gradient-stop-handle.is-selected {
  border-color: var(--md-primary, #4338ca);
  box-shadow: 0 0 0 2px var(--md-primary, #4338ca);
}

.gradient-stop-handle:focus-visible {
  outline: 2px solid var(--md-primary, #4338ca);
  outline-offset: 2px;
}

.preset-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  width: 100%;
}

.preset-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 6px 4px 12px;
  border: 1px solid var(--border);
  border-radius: var(--shape-full);
  background: var(--surface);
  font-size: 12px;
  cursor: pointer;
}

.preset-chip:hover {
  background: var(--md-surface-container);
}

.preset-chip-copy,
.preset-chip-delete {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  border: none;
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
}

.preset-chip-delete:hover {
  background: var(--md-error-container);
  color: var(--md-on-error-container);
}

/* 素の <dialog> にモーダルの体裁だけ与える共有クラス。
   admin のテンプレート複製と my-rooms のルーム作成で共用する。 */
.app-dialog {
  width: min(420px, calc(100vw - 32px));
  max-height: calc(100dvh - 32px);
  box-sizing: border-box;
  overflow-y: auto;
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  color: var(--text);
  background: var(--surface);
  box-shadow: var(--elevation-3);
}

.app-dialog::backdrop {
  background: rgba(7, 19, 26, 0.55);
}

.app-dialog form {
  display: grid;
  gap: 12px;
}

.app-dialog h3,
.app-dialog p {
  margin: 0;
}

/* 直下の入力だけ幅いっぱいに。タグ編集の中の入力欄まで広げない。 */
.app-dialog > form > select,
.app-dialog > form > input {
  width: 100%;
}

.room-create-fields {
  display: grid;
  gap: 8px;
  min-width: 0;
}

.room-create-fields > :is(input, select) {
  width: 100%;
  min-width: 0;
}


/* === Operator workspace: 操作頻度と役割が見分けられる管理画面 === */
.admin-body {
  background: #f3f6fa;
}

.admin-container {
  width: min(1280px, calc(100vw - 32px));
}

.tab-panel[data-tab-panel="live"] {
  display: grid;
  grid-template-columns: minmax(320px, 420px) 1fr;
  align-items: start;
  gap: 18px;
}

.tab-panel[data-tab-panel="questions"] {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: start;
  gap: 18px;
}

/* サブタブ化により縦一列。中身は現在表示中の1サブパネルだけなので2カラムは不要 */
.tab-panel[data-tab-panel="settings"] {
  display: grid;
  grid-template-columns: 1fr;
  align-items: start;
  gap: 18px;
}

.tab-panel[data-tab-panel="live"][hidden] {
  display: none;
}

.live-stage-card,
.answer-workspace {
  position: relative;
  overflow: hidden;
  border-color: #cbd5e1;
  box-shadow: 0 8px 24px rgba(23, 32, 38, 0.07);
}

.live-stage-card::before,
.answer-workspace::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 4px;
}

.live-stage-card::before {
  background: var(--md-primary);
}

.answer-workspace::before {
  background: #334155;
}

.workflow-kicker {
  color: var(--md-primary);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.09em;
}

.broadcast-mode-toolbar {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  padding: 14px;
  border-color: #bfd7e2;
  background: #f1f8fb;
}

.broadcast-mode-toolbar .toolbar-label {
  grid-column: 1 / -1;
}

.broadcast-mode-toolbar .btn-batch {
  min-height: 42px;
  justify-content: center;
  background: #fff;
  border-color: #aebec5;
  color: #263a42;
}

.broadcast-mode-toolbar .btn-batch:hover:not(:disabled) {
  border-color: var(--md-primary);
  background: var(--md-primary-container);
}

.broadcast-mode-toolbar .btn-batch.is-active {
  border-color: var(--md-primary);
  background: var(--md-primary);
  color: #fff;
  box-shadow: 0 0 0 3px rgba(15, 118, 144, 0.16);
}

.broadcast-mode-toolbar .btn-batch.btn-tertiary {
  background: transparent;
  border-color: var(--md-tertiary);
  color: var(--md-tertiary);
}

.broadcast-mode-toolbar .btn-batch.btn-tertiary:hover:not(:disabled) {
  border-color: var(--md-tertiary);
  background: var(--md-tertiary-container);
  filter: brightness(0.96);
}

.broadcast-mode-toolbar .btn-batch.btn-tertiary.is-active {
  border-color: var(--md-tertiary);
  background: var(--md-tertiary);
  color: #fff;
  box-shadow: 0 0 0 3px rgba(107, 79, 160, 0.16);
}

.design-settings > summary span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
}

.design-settings > summary small {
  color: #64748b;
}

.answer-workspace > .batch-toolbar {
  border-color: #d5dde5;
  background: #f8fafc;
}

@media (max-width: 768px) {
  .admin-container {
    width: min(100% - 16px, 1280px);
  }

  .broadcast-mode-toolbar {
    grid-template-columns: 1fr;
  }

  .design-settings > summary {
    align-items: flex-start;
    flex-direction: column;
    gap: 2px;
    padding-right: 42px;
    position: relative;
  }

  .design-settings > summary::after {
    position: absolute;
    top: 12px;
    right: 14px;
  }

}

/* === Ripple micro-interaction (MD3) === */
.qsn-ripple {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.55);
  transform: scale(0);
  pointer-events: none;
  animation: qsn-ripple-spread 0.5s ease-out;
}

.btn-secondary-outline .qsn-ripple,
.admin-tab .qsn-ripple {
  background: rgba(15, 118, 144, 0.25);
}

@keyframes qsn-ripple-spread {
  to {
    transform: scale(1);
    opacity: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .qsn-ripple {
    animation: none;
    display: none;
  }
}

/* === Accent layer: パネルに役割色を1つ持たせる ===
   白カードが同じ色・同じ形で並ぶ単調さを解消する層。
   色の意味: primary=ライブ本流 / tertiary=配信・OBS / success=作問
             warning=管理者操作 / error=破壊的操作
   ○×の赤青（--answer-correct/incorrect）はここでは一切触らない。 */
.panel {
  --panel-pad: 18px;
  --panel-accent: var(--md-primary);
  --panel-accent-container: var(--md-primary-container);
  --panel-accent-on: var(--md-on-primary-container);
}

.create-room-panel {
  --panel-pad: 20px;
}

.panel[data-accent="tertiary"] {
  --panel-accent: var(--md-tertiary);
  --panel-accent-container: var(--md-tertiary-container);
  --panel-accent-on: var(--md-on-tertiary-container);
}

.panel[data-accent="success"] {
  --panel-accent: var(--md-success);
  --panel-accent-container: var(--md-success-container);
  --panel-accent-on: var(--md-on-success-container);
}

.panel[data-accent="warning"] {
  --panel-accent: var(--md-warning);
  --panel-accent-container: var(--md-warning-container);
  --panel-accent-on: var(--md-on-warning-container);
}

.panel.panel-danger {
  --panel-accent: var(--md-error);
  --panel-accent-container: var(--md-error-container);
  --panel-accent-on: var(--md-on-error-container);
}

/* 見出しをカード幅いっぱいの淡い役割色の帯にする */
.panel > .panel-header:first-child {
  margin: calc(var(--panel-pad) * -1) calc(var(--panel-pad) * -1) 2px;
  padding: 11px var(--panel-pad);
  gap: 12px;
  border-bottom: 1px solid color-mix(in srgb, var(--panel-accent) 24%, transparent);
  border-radius: calc(var(--radius-card) - 1px) calc(var(--radius-card) - 1px) 0 0;
  background: color-mix(in srgb, var(--panel-accent) 8%, #fff);
}

.panel > .panel-header:first-child h3 {
  font-size: 16px;
  color: color-mix(in srgb, var(--panel-accent) 74%, var(--md-on-surface));
}

.panel > .panel-header:first-child h3::before,
.live-stage-card::before,
.answer-workspace::before {
  background: var(--panel-accent);
}

.workflow-kicker,
.panel > .panel-header:first-child .form-kicker {
  color: var(--panel-accent);
}

.answer-workspace > .batch-toolbar {
  background: color-mix(in srgb, var(--panel-accent) 5%, #fff);
  border-color: color-mix(in srgb, var(--panel-accent) 22%, transparent);
}

/* タブは担当セクションの色で塗る（設定=裏方なのでニュートラルのまま） */
.admin-tab[data-tab="live"].is-active {
  background: var(--md-primary);
  color: var(--md-on-primary);
}

.admin-tab[data-tab="questions"].is-active {
  background: var(--md-success);
  color: #fff;
}

/* 手順カードは1→2→3で色が進む（同色3連の単調さを崩す） */
.home-step,
.guide-step {
  --step-accent: var(--md-primary);
  --step-accent-container: var(--md-primary-container);
  --step-accent-on: var(--md-on-primary-container);
}

.home-step:nth-of-type(2),
.guide-step:nth-of-type(2) {
  --step-accent: var(--md-tertiary);
  --step-accent-container: var(--md-tertiary-container);
  --step-accent-on: var(--md-on-tertiary-container);
}

.home-step:nth-of-type(3),
.guide-step:nth-of-type(3) {
  --step-accent: var(--md-success);
  --step-accent-container: var(--md-success-container);
  --step-accent-on: var(--md-on-success-container);
}

.home-step span,
.guide-step span {
  background: var(--step-accent-container);
  color: var(--step-accent-on);
}

.guide-step {
  border-color: color-mix(in srgb, var(--step-accent) 30%, transparent);
  background: color-mix(in srgb, var(--step-accent) 7%, #fff);
}

.home-step {
  border-top: 3px solid var(--step-accent);
}

/* 見出し3段: 主要カード18px / 通常16px（accent層で既定） / 脇役15px */
.live-stage-card > .panel-header:first-child h3,
.answer-workspace > .panel-header:first-child h3 {
  font-size: 18px;
}

.tab-panel[data-tab-panel="settings"] .panel > .panel-header:first-child h3 {
  font-size: 15px;
}

/* 脇役: 設定タブは頻度が低いので詰める（--panel-padで見出し帯の抜きも追従する） */
.tab-panel[data-tab-panel="settings"] .panel {
  --panel-pad: 14px;
  gap: 10px;
  padding: var(--panel-pad);
}

.tab-panel[data-tab-panel="settings"] .panel-description {
  font-size: 12px;
}

/* トップページも主役の階段を作る */
.home-hero h1 {
  font-size: clamp(28px, 4vw, 40px);
  letter-spacing: -0.01em;
}

.home-step strong {
  font-size: 15px;
}

.guide-step small {
  font-size: 12px;
}

/* === Top page: 役割選択を主役にしたランディングレイアウト === */
.home-container {
  width: min(1080px, 94vw);
  gap: 24px;
}

.home-hero {
  align-items: center;
  padding: 28px 30px;
  border: 1px solid var(--border);
  border-left: 4px solid var(--md-primary);
  border-radius: var(--shape-large);
  background: color-mix(in srgb, var(--md-primary-container) 22%, var(--surface));
}

.home-hero-copy {
  gap: 10px;
}

.home-brand-logo {
  display: block;
  width: clamp(180px, 28vw, 250px);
  height: auto;
}

.home-hero h1 {
  max-width: 680px;
  font-size: clamp(32px, 5vw, 48px);
  letter-spacing: -0.025em;
  text-wrap: balance;
}

.home-hero .lead-text {
  max-width: 620px;
  margin: 0;
  font-size: 16px;
}

.home-status-card {
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: 12px;
  padding: 16px;
  box-shadow: none;
}

.home-status-icon {
  width: 42px;
  height: 42px;
}

.home-status-copy {
  display: grid;
  gap: 3px;
}

.home-status-copy strong,
.home-status-copy span {
  display: block;
}

.role-entry-card {
  min-height: 238px;
  margin-bottom: 0;
  padding: 22px;
  gap: 16px;
}

.role-entry-card > .panel-header:first-child {
  margin: -22px -22px 2px;
  padding: 16px 22px;
}

.role-entry-card h2 {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 22px;
  color: color-mix(in srgb, var(--panel-accent) 72%, var(--text));
}

.role-entry-card .panel-description {
  max-width: 48ch;
  font-size: 14px;
}

.role-entry-card .panel-actions,
.role-entry-card .btn-link {
  width: 100%;
}

.role-entry-card .btn-link {
  min-height: 48px;
}

.home-guide {
  display: grid;
  gap: 12px;
}

.home-section-heading {
  display: grid;
  gap: 2px;
}

.home-section-heading h2 {
  margin: 0;
  font-size: 20px;
}

.home-step {
  min-height: 112px;
  padding: 16px;
}

.home-feedback {
  padding: 18px 20px;
  box-shadow: none;
}

@media (max-width: 768px) {
  .home-hero {
    padding: 24px;
  }

  .home-hero h1 {
    font-size: clamp(30px, 9vw, 40px);
  }

  .role-entry-card {
    min-height: 0;
  }
}

@media (max-width: 480px) {
  .home-container {
    width: min(100% - 24px, 1080px);
    gap: 18px;
  }

  .home-hero {
    padding: 20px 18px;
  }

  .home-hero h1 br {
    display: none;
  }

  .home-status-card {
    align-items: start;
  }

  .home-feedback .btn-link {
    width: 100%;
  }
}

.answer-filters {
  display: grid;
  grid-template-columns: minmax(180px, 1fr) repeat(3, minmax(116px, auto)) auto;
  gap: 8px;
  align-items: end;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: var(--shape-small);
  background: var(--md-surface-container);
}

.answer-filters > .btn-small {
  min-height: 38px;
  margin: 0;
}

.answer-command-utility .btn-small {
  align-self: end;
  min-height: 36px;
  margin: 0;
}

@media (max-width: 1100px) {
  .answer-filters {
    grid-template-columns: minmax(180px, 1fr) repeat(2, minmax(116px, auto));
  }

  .answer-filter-query,
  .answer-filters > .btn-small {
    grid-column: auto;
  }

  .answer-commandbar {
    flex-wrap: wrap;
  }

  .answer-command-spacer,
  .answer-command-divider {
    display: none;
  }
}

@media (max-width: 768px) {
  .answer-stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .answer-filter-query {
    grid-column: 1 / -1;
  }

  .answer-filters > .btn-small {
    width: 100%;
  }

  .answer-command-group {
    width: 100%;
  }

  .answer-command-actions .btn-small {
    flex: 1 1 140px;
  }

  .answer-command-utility .btn-small {
    flex: 1 1 160px;
  }

  .answers-list .answer-title-row {
    grid-template-columns: minmax(0, 1fr) auto;
  }

  .answers-list .answer-state-stack {
    grid-column: 1 / -1;
  }
}

@media (max-width: 420px) {
  .answer-filters {
    grid-template-columns: 1fr;
  }

  .answer-filter-query {
    grid-column: auto;
  }

  .answer-list-heading {
    align-items: flex-start;
    flex-direction: column;
    gap: 4px;
  }
}

.image-library-picker-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.image-library-picker-modal {
  background: #fff;
  border-radius: 8px;
  width: min(720px, 92vw);
  height: min(640px, 85vh);
  display: flex;
  flex-direction: column;
}

.image-library-picker-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 1rem 1rem 0.5rem;
  flex-shrink: 0;
}

.image-library-picker-header h3 {
  margin: 0;
}

.image-library-picker-close {
  border: none;
  background: none;
  cursor: pointer;
  font-size: 1.1rem;
  line-height: 1;
  padding: 0.25rem 0.5rem;
  color: inherit;
}

.image-library-picker-preview {
  flex-shrink: 0;
  height: 200px;
  margin: 0 1rem 0.75rem;
  border-radius: 6px;
  background: rgba(0, 0, 0, 0.04);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.image-library-picker-preview img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.image-library-picker-preview-hint {
  margin: 0;
  padding: 0 1rem;
  text-align: center;
  color: var(--text-secondary, #666);
  font-size: 0.9rem;
}

.image-library-picker-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(96px, 1fr));
  gap: 0.5rem;
  padding: 0 1rem 1rem;
  overflow-y: auto;
  flex: 1;
}

.image-library-picker-item {
  padding: 0;
  border: 2px solid transparent;
  border-radius: 4px;
  background: none;
  cursor: pointer;
  transition: border-color 0.15s ease, opacity 0.15s ease;
}

.image-library-picker-item:hover {
  opacity: 0.8;
}

.image-library-picker-item.is-selected {
  border-color: var(--accent-color);
}

.image-library-picker-item img {
  width: 100%;
  height: 96px;
  object-fit: cover;
  border-radius: 2px;
  display: block;
}

.image-library-picker-loading,
.image-library-picker-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 2rem 1rem;
  color: var(--text-secondary, #666);
}