/* ProQuiz 前台 — 与 Typecho 站点/控制台协调的蓝灰系，深浅色 */

:root {
  --pq-bg: #eef2f7;
  --pq-bg-mesh: radial-gradient(1200px 500px at 10% -10%, rgba(70, 123, 150, 0.14), transparent 55%),
    radial-gradient(900px 400px at 90% 0%, rgba(37, 99, 235, 0.08), transparent 50%);
  --pq-surface: #ffffff;
  --pq-text: #1e293b;
  --pq-muted: #64748b;
  --pq-border: #e2e8f0;
  --pq-accent: #467b96;
  --pq-accent-2: #2563eb;
  --pq-primary-soft: rgba(70, 123, 150, 0.14);
  --pq-danger: #dc2626;
  --pq-success: #15803d;
  --pq-radius: 14px;
  --pq-radius-sm: 10px;
  --pq-shadow: 0 4px 24px rgba(15, 23, 42, 0.07);
  --pq-shadow-hover: 0 12px 36px rgba(15, 23, 42, 0.1);
  --pq-font: system-ui, -apple-system, 'Segoe UI', Roboto, 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

.pq-app[data-pq-theme='dark'] {
  --pq-bg: #0a0f18;
  --pq-bg-mesh: radial-gradient(1000px 480px at 15% -5%, rgba(96, 165, 250, 0.12), transparent 55%),
    radial-gradient(800px 360px at 85% 5%, rgba(70, 123, 150, 0.1), transparent 45%);
  --pq-surface: #121a28;
  --pq-text: #e2e8f0;
  --pq-muted: #94a3b8;
  --pq-border: #1e293b;
  --pq-accent: #7eb8d4;
  --pq-accent-2: #60a5fa;
  --pq-primary-soft: rgba(96, 165, 250, 0.16);
  --pq-danger: #f87171;
  --pq-success: #4ade80;
  --pq-shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
  --pq-shadow-hover: 0 16px 48px rgba(0, 0, 0, 0.45);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

.pq-body {
  margin: 0;
  font-family: var(--pq-font);
  background: var(--pq-bg);
  background-image: var(--pq-bg-mesh);
  color: var(--pq-text);
  line-height: 1.55;
  min-height: 100vh;
}

.pq-app {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.pq-head {
  position: sticky;
  top: 0;
  z-index: 30;
  border-bottom: 1px solid var(--pq-border);
  background: var(--pq-surface);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--pq-shadow);
}

.pq-head-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, var(--pq-primary-soft) 0%, transparent 45%);
  pointer-events: none;
  opacity: 0.9;
}

.pq-head-inner {
  position: relative;
  max-width: 920px;
  margin: 0 auto;
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.pq-brand-wrap {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.pq-logo {
  font-size: 1.75rem;
  line-height: 1;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.08));
}

.pq-brand {
  margin: 0;
  font-size: 1.2rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--pq-text);
}

.pq-tagline {
  margin: 4px 0 0;
  font-size: 0.78rem;
  color: var(--pq-muted);
  font-weight: 500;
}

.pq-head-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
}

.pq-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 18px;
  border-radius: 999px;
  border: 1px solid var(--pq-border);
  background: var(--pq-surface);
  color: var(--pq-text);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s, border-color 0.15s, transform 0.12s, box-shadow 0.15s;
  font-family: inherit;
}

.pq-btn:hover {
  border-color: var(--pq-accent);
  color: var(--pq-accent);
  box-shadow: 0 2px 12px var(--pq-primary-soft);
}

.pq-btn--primary {
  background: linear-gradient(135deg, var(--pq-accent) 0%, var(--pq-accent-2) 100%);
  border-color: transparent;
  color: #fff;
  box-shadow: 0 4px 16px rgba(70, 123, 150, 0.35);
}

.pq-app[data-pq-theme='dark'] .pq-btn--primary {
  color: #0f172a;
}

.pq-btn--primary:hover {
  filter: brightness(1.06);
  color: #fff;
  border-color: transparent;
}

.pq-app[data-pq-theme='dark'] .pq-btn--primary:hover {
  color: #0f172a;
}

.pq-btn--ghost {
  background: transparent;
}

.pq-btn--theme {
  width: 44px;
  height: 44px;
  padding: 0;
  border-radius: 12px;
}

.pq-theme-icon {
  font-size: 1.1rem;
  line-height: 1;
}
.pq-app[data-pq-theme='light'] .pq-theme-icon--dark {
  display: none;
}
.pq-app[data-pq-theme='dark'] .pq-theme-icon--light {
  display: none;
}

.pq-main {
  flex: 1;
  max-width: 920px;
  margin: 0 auto;
  width: 100%;
  padding: 28px 20px 40px;
}

.pq-foot {
  margin-top: auto;
  padding: 16px 20px 28px;
  text-align: center;
}

.pq-foot-note {
  font-size: 0.75rem;
  color: var(--pq-muted);
}

.pq-card {
  background: var(--pq-surface);
  border: 1px solid var(--pq-border);
  border-radius: var(--pq-radius);
  padding: 22px 24px;
  box-shadow: var(--pq-shadow);
  margin-bottom: 18px;
}

.pq-card--intro {
  border-left: 4px solid var(--pq-accent);
}

.pq-section-title {
  margin: 0 0 8px;
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.pq-muted {
  color: var(--pq-muted);
  font-size: 0.875rem;
}

.pq-bank-list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.pq-bank-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 16px 18px;
  border-radius: var(--pq-radius-sm);
  border: 1px solid var(--pq-border);
  background: var(--pq-surface);
  cursor: pointer;
  transition: border-color 0.15s, box-shadow 0.15s, transform 0.12s;
}

.pq-bank-item:hover {
  border-color: var(--pq-accent);
  box-shadow: var(--pq-shadow-hover);
  transform: translateY(-1px);
}

.pq-bank-title {
  font-weight: 800;
  margin: 0 0 4px;
  font-size: 1rem;
}

.pq-bank-meta {
  font-size: 0.8rem;
  color: var(--pq-muted);
}

.pq-form-row {
  margin-bottom: 14px;
}
.pq-form-row label {
  display: block;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--pq-muted);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.pq-input,
.pq-select {
  width: 100%;
  max-width: 320px;
  padding: 10px 14px;
  border-radius: var(--pq-radius-sm);
  border: 1px solid var(--pq-border);
  background: var(--pq-bg);
  color: var(--pq-text);
  font-size: 0.95rem;
  font-family: inherit;
}

.pq-timer {
  position: sticky;
  top: 88px;
  z-index: 10;
  padding: 14px 18px;
  background: var(--pq-primary-soft);
  border: 1px solid var(--pq-border);
  border-radius: var(--pq-radius-sm);
  font-variant-numeric: tabular-nums;
  font-weight: 800;
  margin-bottom: 18px;
  text-align: center;
  font-size: 1.05rem;
}

.pq-timer--warn {
  color: var(--pq-danger);
  animation: pq-pulse 1s ease-in-out infinite;
}

@keyframes pq-pulse {
  50% {
    opacity: 0.85;
  }
}

.pq-q {
  margin-bottom: 24px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--pq-border);
}
.pq-q:last-child {
  border-bottom: none;
}

.pq-q-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 26px;
  height: 26px;
  margin-right: 8px;
  border-radius: 8px;
  background: var(--pq-primary-soft);
  color: var(--pq-accent);
  font-size: 0.75rem;
  font-weight: 800;
  vertical-align: middle;
}

.pq-q-stem {
  font-weight: 700;
  margin-bottom: 12px;
  font-size: 1.02rem;
  line-height: 1.55;
}

.pq-q-type {
  display: inline-block;
  font-size: 0.68rem;
  font-weight: 800;
  padding: 3px 9px;
  border-radius: 999px;
  background: var(--pq-primary-soft);
  color: var(--pq-accent);
  margin-right: 8px;
  vertical-align: middle;
}

.pq-options {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.pq-opt {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px 14px;
  border-radius: var(--pq-radius-sm);
  border: 1px solid var(--pq-border);
  cursor: pointer;
  transition: background 0.12s, border-color 0.12s;
}
.pq-opt:hover {
  border-color: var(--pq-accent);
  background: var(--pq-primary-soft);
}
.pq-opt input {
  margin-top: 4px;
}
.pq-opt--wrong {
  border-color: var(--pq-danger);
  background: rgba(220, 38, 38, 0.06);
}
.pq-opt--ok {
  border-color: var(--pq-success);
  background: rgba(22, 163, 74, 0.08);
}

.pq-short-input {
  width: 100%;
  min-height: 88px;
  padding: 14px;
  border-radius: var(--pq-radius-sm);
  border: 1px solid var(--pq-border);
  background: var(--pq-bg);
  color: var(--pq-text);
  resize: vertical;
  font-family: inherit;
  font-size: 0.95rem;
}

.pq-result-banner {
  padding: 22px;
  border-radius: var(--pq-radius);
  background: linear-gradient(135deg, var(--pq-primary-soft), transparent);
  border: 1px solid var(--pq-border);
  font-size: 1.35rem;
  font-weight: 800;
  margin-bottom: 20px;
  text-align: center;
  letter-spacing: -0.02em;
}

.pq-help-tip {
  margin-bottom: 14px;
  padding: 14px 16px;
  border-radius: var(--pq-radius-sm);
  border: 1px solid var(--pq-border);
  background: var(--pq-primary-soft);
  font-size: 0.88rem;
  line-height: 1.55;
}
.pq-help-tip-text {
  margin: 0;
  color: var(--pq-text);
}

.pq-section-tip {
  margin: 0 0 12px;
  font-size: 0.9rem;
  color: var(--pq-muted);
  line-height: 1.5;
}

.pq-wrong-block {
  margin-top: 14px;
  padding: 16px;
  border-radius: var(--pq-radius-sm);
  border: 1px dashed var(--pq-border);
  background: var(--pq-bg);
}

.pq-wrong-stem {
  font-weight: 600;
  margin-bottom: 10px;
  line-height: 1.5;
}

.pq-wrong-ans {
  margin-top: 8px;
  font-size: 0.95rem;
  color: var(--pq-text);
}

.pq-wrong-exp {
  margin-top: 10px;
  padding: 12px;
  border-radius: 8px;
  background: var(--pq-surface);
  border: 1px solid var(--pq-border);
  font-size: 0.9rem;
  line-height: 1.55;
  color: var(--pq-text);
}

.pq-explain {
  margin-top: 8px;
  font-size: 0.9rem;
  color: var(--pq-muted);
}
.pq-explain strong {
  color: var(--pq-text);
}

.pq-actions-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.pq-empty {
  text-align: center;
  padding: 48px 20px;
  color: var(--pq-muted);
}

.pq-history-list {
  margin: 0;
  padding-left: 0;
  list-style: none;
  color: var(--pq-muted);
  font-size: 0.88rem;
}
.pq-history-list li {
  margin: 8px 0;
}
.pq-history-item {
  cursor: pointer;
  padding: 10px 12px;
  border-radius: var(--pq-radius-sm);
  border: 1px solid var(--pq-border);
  background: var(--pq-surface);
  color: var(--pq-text);
  transition: background 0.15s ease, border-color 0.15s ease;
}
.pq-history-item:hover {
  border-color: var(--pq-accent);
  background: var(--pq-primary-soft);
}
.pq-history-item--disabled {
  cursor: default;
  opacity: 0.65;
}
.pq-history-item--disabled:hover {
  border-color: var(--pq-border);
  background: var(--pq-surface);
}

.pq-explain-locked {
  color: var(--pq-accent-2);
  font-weight: 600;
}

.pq-report-bar {
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px dashed var(--pq-border);
}
.pq-report-bar--readonly {
  border-top: none;
  margin-top: 8px;
  padding-top: 0;
}
.pq-text-btn {
  border: none;
  background: transparent;
  color: var(--pq-accent-2);
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: underline;
  padding: 0;
  font-family: inherit;
}
.pq-text-btn:hover {
  opacity: 0.85;
}
.pq-text-btn:disabled {
  opacity: 0.5;
  cursor: default;
  text-decoration: none;
}

.pq-member-tools {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

@media (max-width: 520px) {
  .pq-head-inner {
    flex-direction: column;
    align-items: flex-start;
  }
  .pq-brand {
    font-size: 1.05rem;
  }
  .pq-timer {
    top: 72px;
  }
}