/**
 * TBP 站点共享样式：首页、活动门户、访客编辑页
 * 相对路径引用：tbp-ui.css（与子目录部署兼容）
 */

:root {
  color-scheme: light dark;
  --tbp-font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --tbp-mono: ui-monospace, "Cascadia Code", "SF Mono", Consolas, monospace;
  --tbp-ink: #0f172a;
  --tbp-ink-muted: #475569;
  --tbp-ink-soft: #64748b;
  --tbp-surface: rgba(255, 255, 255, 0.82);
  --tbp-surface-solid: #ffffff;
  --tbp-border: rgba(148, 163, 184, 0.35);
  --tbp-border-strong: #cbd5e1;
  --tbp-accent: #4f46e5;
  --tbp-accent-hover: #4338ca;
  --tbp-accent-soft: rgba(79, 70, 229, 0.12);
  --tbp-secondary: #475569;
  --tbp-secondary-hover: #334155;
  --tbp-success: #047857;
  --tbp-success-bg: rgba(16, 185, 129, 0.1);
  --tbp-danger: #b91c1c;
  --tbp-danger-bg: rgba(239, 68, 68, 0.1);
  --tbp-radius: 14px;
  --tbp-radius-sm: 10px;
  --tbp-shadow: 0 4px 6px -1px rgba(15, 23, 42, 0.06), 0 10px 40px -12px rgba(79, 70, 229, 0.15);
  --tbp-shadow-lg: 0 20px 50px -15px rgba(15, 23, 42, 0.12);
  --tbp-ring: 0 0 0 3px rgba(79, 70, 229, 0.28);
  --tbp-pad-x: clamp(1rem, 4vw, 1.75rem);
  --tbp-pad-y: clamp(1.25rem, 5vw, 2.5rem);
}

@media (prefers-color-scheme: dark) {
  :root {
    --tbp-ink: #f1f5f9;
    --tbp-ink-muted: #cbd5e1;
    --tbp-ink-soft: #94a3b8;
    --tbp-surface: rgba(30, 41, 59, 0.75);
    --tbp-surface-solid: #1e293b;
    --tbp-border: rgba(71, 85, 105, 0.5);
    --tbp-border-strong: #475569;
    --tbp-accent: #818cf8;
    --tbp-accent-hover: #a5b4fc;
    --tbp-accent-soft: rgba(129, 140, 248, 0.15);
    --tbp-secondary: #94a3b8;
    --tbp-secondary-hover: #cbd5e1;
    --tbp-success: #34d399;
    --tbp-success-bg: rgba(16, 185, 129, 0.12);
    --tbp-danger: #f87171;
    --tbp-danger-bg: rgba(248, 113, 113, 0.12);
    --tbp-shadow: 0 4px 24px rgba(0, 0, 0, 0.35);
    --tbp-shadow-lg: 0 24px 60px rgba(0, 0, 0, 0.45);
    --tbp-ring: 0 0 0 3px rgba(129, 140, 248, 0.35);
  }
}

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

html {
  -webkit-text-size-adjust: 100%;
}

body.tbp-root {
  margin: 0;
  min-height: 100dvh;
  font-family: var(--tbp-font);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--tbp-ink);
  background: var(--tbp-surface-solid);
}

/* 背景装饰层 */
.tbp-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(ellipse 100% 70% at 50% -15%, rgba(99, 102, 241, 0.22), transparent 55%),
    radial-gradient(ellipse 80% 50% at 100% 0%, rgba(236, 72, 153, 0.08), transparent 45%),
    radial-gradient(ellipse 60% 40% at 0% 100%, rgba(34, 211, 238, 0.08), transparent 50%),
    linear-gradient(165deg, #f8fafc 0%, #eef2ff 45%, #f1f5f9 100%);
}

@media (prefers-color-scheme: dark) {
  .tbp-bg {
    background:
      radial-gradient(ellipse 100% 70% at 50% -15%, rgba(99, 102, 241, 0.25), transparent 55%),
      radial-gradient(ellipse 80% 50% at 100% 0%, rgba(236, 72, 153, 0.1), transparent 45%),
      linear-gradient(165deg, #0f172a 0%, #1e1b4b 50%, #0f172a 100%);
  }
}

@media (prefers-reduced-motion: no-preference) {
  .tbp-shell {
    animation: tbp-fade-up 0.5s ease-out both;
  }
}

@keyframes tbp-fade-up {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.tbp-shell {
  width: 100%;
  max-width: min(26rem, 100%);
  margin: 0 auto;
  padding: var(--tbp-pad-y) var(--tbp-pad-x);
  padding-bottom: calc(var(--tbp-pad-y) + env(safe-area-inset-bottom, 0px));
}

@media (min-width: 640px) {
  .tbp-shell--wide {
    max-width: min(40rem, 94vw);
  }
}

@media (min-width: 900px) {
  .tbp-shell--wide {
    max-width: min(44rem, 92vw);
  }
}

/* 品牌区 */
.tbp-brand {
  margin-bottom: clamp(1.25rem, 4vw, 2rem);
}

.tbp-brand__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--tbp-accent);
  background: var(--tbp-accent-soft);
  padding: 0.35rem 0.65rem;
  border-radius: 999px;
  margin-bottom: 0.65rem;
}

.tbp-brand__title {
  font-size: clamp(1.25rem, 4vw, 1.65rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.25;
  margin: 0 0 0.5rem;
}

.tbp-brand__tag {
  margin: 0;
  font-size: 0.9rem;
  color: var(--tbp-ink-soft);
}

/* 卡片 */
.tbp-card {
  background: var(--tbp-surface);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--tbp-border);
  border-radius: var(--tbp-radius);
  padding: clamp(1.1rem, 3.5vw, 1.5rem);
  box-shadow: var(--tbp-shadow);
}

@media (min-width: 640px) {
  .tbp-card {
    padding: 1.5rem 1.65rem;
    box-shadow: var(--tbp-shadow-lg);
  }
}

.tbp-card__title {
  font-size: 1.05rem;
  font-weight: 700;
  margin: 0 0 0.5rem;
  color: var(--tbp-ink);
}

.tbp-muted {
  margin: 0 0 1rem;
  font-size: 0.9rem;
  color: var(--tbp-ink-soft);
  line-height: 1.55;
}

.tbp-muted:last-child {
  margin-bottom: 0;
}

/* Chips（状态等） */
.tbp-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0 0 1rem;
}

.tbp-chip {
  display: inline-flex;
  align-items: center;
  font-size: 0.8rem;
  font-weight: 500;
  padding: 0.35rem 0.65rem;
  border-radius: 999px;
  background: rgba(148, 163, 184, 0.15);
  color: var(--tbp-ink-muted);
  border: 1px solid var(--tbp-border);
}

.tbp-chip--accent {
  background: var(--tbp-accent-soft);
  color: var(--tbp-accent);
  border-color: transparent;
}

/* 正文区 */
.tbp-prose {
  font-size: 0.95rem;
  color: var(--tbp-ink-muted);
  margin: 0 0 1.25rem;
  padding: 0.85rem 1rem;
  border-radius: var(--tbp-radius-sm);
  background: rgba(148, 163, 184, 0.08);
  border: 1px solid var(--tbp-border);
  line-height: 1.65;
  word-break: break-word;
}

.tbp-prose:empty {
  display: none;
}

/* 分区标题 */
.tbp-section-title {
  font-size: 1rem;
  font-weight: 700;
  margin: 1.75rem 0 0.65rem;
  padding-left: 0.65rem;
  border-left: 4px solid var(--tbp-accent);
  line-height: 1.3;
}

.tbp-section-title:first-of-type {
  margin-top: 0;
}

.tbp-sep {
  border: none;
  height: 1px;
  margin: 1.75rem 0;
  background: linear-gradient(90deg, transparent, var(--tbp-border-strong), transparent);
}

/* 表单 */
.tbp-form label,
label.tbp-label {
  display: block;
  margin: 0.75rem 0 0.35rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--tbp-ink-muted);
}

.tbp-form label:first-child,
.tbp-form .tbp-label:first-of-type {
  margin-top: 0;
}

.tbp-field,
.tbp-form input[type="text"],
.tbp-form input[type="tel"],
.tbp-form input[type="number"],
.tbp-form textarea {
  width: 100%;
  max-width: 100%;
  padding: 0.65rem 0.85rem;
  font-size: 1rem;
  font-family: inherit;
  color: var(--tbp-ink);
  background: var(--tbp-surface-solid);
  border: 1px solid var(--tbp-border-strong);
  border-radius: var(--tbp-radius-sm);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.tbp-form textarea {
  min-height: 5.5rem;
  resize: vertical;
  line-height: 1.5;
}

.tbp-field:focus,
.tbp-form input:focus,
.tbp-form textarea:focus {
  outline: none;
  border-color: var(--tbp-accent);
  box-shadow: var(--tbp-ring);
}

.tbp-form .tbp-check {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.65rem;
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--tbp-ink);
  cursor: pointer;
}

.tbp-form .tbp-check input {
  width: 1.1rem;
  height: 1.1rem;
  accent-color: var(--tbp-accent);
  cursor: pointer;
}

.tbp-inline-fields {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 0.75rem 1rem;
  margin-top: 0.35rem;
}

.tbp-inline-fields label {
  margin-top: 0;
}

.tbp-input-narrow {
  width: auto !important;
  min-width: 4.5rem;
  max-width: 6rem;
}

/* 按钮 */
.tbp-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 1.15rem;
}

.tbp-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  min-height: 2.75rem;
  padding: 0.6rem 1.25rem;
  font-size: 1rem;
  font-weight: 600;
  font-family: inherit;
  border: none;
  border-radius: var(--tbp-radius-sm);
  cursor: pointer;
  touch-action: manipulation;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.tbp-btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  transform: none;
}

.tbp-btn--primary {
  color: #fff;
  background: linear-gradient(135deg, #6366f1 0%, #4f46e5 50%, #4338ca 100%);
  box-shadow: 0 4px 14px rgba(79, 70, 229, 0.35);
}

.tbp-btn--primary:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(79, 70, 229, 0.4);
}

.tbp-btn--secondary {
  color: #fff;
  background: linear-gradient(135deg, #64748b 0%, #475569 100%);
  box-shadow: 0 2px 10px rgba(71, 85, 105, 0.25);
}

.tbp-btn--secondary:hover:not(:disabled) {
  transform: translateY(-1px);
}

.tbp-btn--ghost {
  color: var(--tbp-accent);
  background: transparent;
  border: 1px solid var(--tbp-border-strong);
  box-shadow: none;
}

.tbp-btn--ghost:hover:not(:disabled) {
  background: var(--tbp-accent-soft);
  border-color: transparent;
}

a.tbp-btn {
  text-decoration: none;
}

a.tbp-btn--primary {
  color: #fff;
}

.tbp-btn--small {
  min-height: 2.35rem;
  padding: 0.4rem 0.9rem;
  font-size: 0.875rem;
}

@media (prefers-reduced-motion: reduce) {
  .tbp-btn:hover:not(:disabled) {
    transform: none;
  }
}

/* 消息 */
.tbp-msg {
  margin-top: 0.85rem;
  padding: 0.65rem 0.85rem;
  border-radius: var(--tbp-radius-sm);
  font-size: 0.9rem;
  line-height: 1.5;
  word-break: break-word;
}

.tbp-msg--ok {
  color: var(--tbp-success);
  background: var(--tbp-success-bg);
  border: 1px solid rgba(16, 185, 129, 0.25);
  white-space: pre-wrap;
}

.tbp-msg--err {
  color: var(--tbp-danger);
  background: var(--tbp-danger-bg);
  border: 1px solid rgba(239, 68, 68, 0.25);
}

/* 生成结果 */
.tbp-result {
  margin-top: 1rem;
  padding: 1rem;
  border-radius: var(--tbp-radius-sm);
  background: rgba(148, 163, 184, 0.1);
  border: 1px solid var(--tbp-border);
}

.tbp-result[hidden] {
  display: none !important;
}

.tbp-result__text {
  margin: 0 0 0.75rem;
  font-family: var(--tbp-mono);
  font-size: 0.78rem;
  line-height: 1.55;
  white-space: pre-wrap;
  word-break: break-all;
  color: var(--tbp-ink-muted);
}

/* 生成成功：链接 + 复制 */
.tbp-gen-ok[hidden],
.tbp-gen-ok__pre[hidden] {
  display: none !important;
}

.tbp-gen-ok__title {
  margin: 0 0 0.65rem;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--tbp-ink);
}

.tbp-url-copy-row {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  margin-bottom: 0.75rem;
}

@media (min-width: 520px) {
  .tbp-url-copy-row {
    flex-direction: row;
    align-items: stretch;
  }

  .tbp-url-copy-row .tbp-url-field {
    flex: 1;
    min-width: 0;
  }

  .tbp-url-copy-row .tbp-btn {
    flex-shrink: 0;
    align-self: center;
  }
}

.tbp-url-field {
  font-family: var(--tbp-mono);
  font-size: 0.8rem;
  line-height: 1.45;
  word-break: break-all;
}

.tbp-gen-footnote {
  margin: 0;
  font-size: 0.85rem;
  color: var(--tbp-ink-soft);
  line-height: 1.5;
}

/* 活动门户：概览与报名名单 */
.tbp-dash-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}

.tbp-stat {
  display: inline-flex;
  align-items: center;
  gap: 0.2rem;
  padding: 0.4rem 0.75rem;
  border-radius: 999px;
  font-size: 0.85rem;
  background: rgba(148, 163, 184, 0.12);
  color: var(--tbp-ink-muted);
  border: 1px solid var(--tbp-border);
}

.tbp-stat--accent {
  background: var(--tbp-accent-soft);
  color: var(--tbp-accent);
  border-color: transparent;
  font-weight: 600;
}

.tbp-stat--muted {
  font-weight: 400;
}

.tbp-subhead {
  margin: 0 0 0.45rem;
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--tbp-ink-muted);
}

.tbp-table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.tbp-table {
  width: 100%;
  min-width: 280px;
  border-collapse: collapse;
  font-size: 0.86rem;
}

.tbp-table th,
.tbp-table td {
  border: 1px solid var(--tbp-border-strong);
  padding: 0.5rem 0.55rem;
  text-align: left;
  vertical-align: top;
}

.tbp-table th {
  background: rgba(148, 163, 184, 0.12);
  font-weight: 600;
  white-space: nowrap;
}

.tbp-table tbody tr:nth-child(even) {
  background: rgba(148, 163, 184, 0.05);
}

.tbp-table-empty {
  text-align: center;
  color: var(--tbp-ink-soft);
  padding: 0.85rem !important;
}

/* code 行内 */
code.tbp-code,
.tbp-card code {
  font-family: var(--tbp-mono);
  font-size: 0.82em;
  padding: 0.12em 0.4em;
  border-radius: 6px;
  background: rgba(148, 163, 184, 0.2);
  color: var(--tbp-ink-muted);
}

/* 页脚链接 */
.tbp-footer {
  margin-top: 2rem;
  padding-top: 1rem;
  text-align: center;
}

.tbp-footer a {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--tbp-accent);
  text-decoration: none;
  padding: 0.5rem 0.75rem;
  border-radius: var(--tbp-radius-sm);
  transition: background 0.15s ease;
}

.tbp-footer a:hover {
  background: var(--tbp-accent-soft);
}

/* 错误页 */
.tbp-error-page .tbp-shell {
  max-width: min(28rem, 100%);
}

.tbp-error-card {
  text-align: center;
  padding: 2rem 1.25rem;
}

.tbp-error-card p {
  margin: 0 0 1rem;
  font-size: 1.05rem;
  color: var(--tbp-ink-muted);
}

.tbp-error-icon {
  font-size: 2.5rem;
  margin-bottom: 0.75rem;
  line-height: 1;
}

/* 活动门户：顶部活动信息摘要 */
.tbp-meta-summary__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.65rem;
}

.tbp-meta-summary__title {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--tbp-ink);
}

.tbp-meta-dl {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(11rem, 1fr));
  gap: 0.35rem 1.25rem;
  margin: 0;
}

.tbp-meta-dl > div {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.35rem 0.5rem;
  align-items: baseline;
  font-size: 0.92rem;
}

.tbp-meta-dl dt {
  margin: 0;
  color: var(--tbp-ink-soft);
  font-weight: 600;
}

.tbp-meta-dl dd {
  margin: 0;
  color: var(--tbp-ink);
  word-break: break-word;
}

.tbp-meta-desc {
  margin: 0.65rem 0 0;
  font-size: 0.92rem;
  color: var(--tbp-ink-muted);
  line-height: 1.55;
}

.tbp-meta-desc__label {
  font-weight: 600;
  color: var(--tbp-ink-soft);
}

/* 协作区：可折叠大块 */
.tbp-details-block {
  margin: 0.85rem 0;
  border: 1px solid var(--tbp-border);
  border-radius: var(--tbp-radius-sm);
  overflow: hidden;
  background: rgba(148, 163, 184, 0.04);
}

.tbp-details-block__sum {
  cursor: pointer;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.65rem 0.85rem;
  list-style: none;
  color: var(--tbp-ink);
}

.tbp-details-block__sum::-webkit-details-marker {
  display: none;
}

.tbp-details-block__sum::before {
  content: "▶ ";
  display: inline-block;
  width: 1em;
  color: var(--tbp-ink-soft);
  font-size: 0.75em;
}

.tbp-details-block[open] > .tbp-details-block__sum::before {
  content: "▼ ";
}

.tbp-details-block__body {
  padding: 0 0.85rem 0.85rem;
}

/* 筹备：大类行 + 折叠子项表 */
.tbp-prep-mod {
  margin: 0.65rem 0;
  padding: 0.55rem 0.65rem;
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 10px;
}

.tbp-prep-mod-head {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  align-items: center;
}

.tbp-prep-toggle {
  flex: 0 0 auto;
  width: 2rem;
  height: 2rem;
  padding: 0;
  border: 1px solid var(--tbp-border);
  border-radius: 8px;
  background: var(--tbp-surface-solid);
  cursor: pointer;
  font-size: 0.75rem;
  line-height: 1;
  color: var(--tbp-ink-muted);
}

.tbp-prep-mod-head__label {
  margin: 0 !important;
}

.tbp-prep-mod-head__title {
  flex: 1 1 12rem;
  min-width: 8rem;
}

.tbp-prep-mod-body {
  margin-top: 0.5rem;
}

/* 编辑活动信息弹层 */
.tbp-modal {
  position: fixed;
  inset: 0;
  z-index: 80;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: min(5vh, 2rem) var(--tbp-pad-x);
  overflow-y: auto;
  box-sizing: border-box;
}

.tbp-modal[hidden] {
  display: none !important;
}

.tbp-modal__backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.45);
  backdrop-filter: blur(2px);
}

.tbp-modal__panel {
  position: relative;
  z-index: 1;
  width: min(32rem, 100%);
  margin-top: min(6vh, 3rem);
  margin-bottom: 2rem;
  border-radius: var(--tbp-radius);
  background: var(--tbp-surface-solid);
  box-shadow: var(--tbp-shadow-lg);
  border: 1px solid var(--tbp-border);
  max-height: calc(100dvh - 4rem);
  display: flex;
  flex-direction: column;
}

.tbp-modal__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--tbp-border);
}

.tbp-modal__title {
  margin: 0;
  font-size: 1.1rem;
}

.tbp-modal__x {
  border: none;
  background: transparent;
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  color: var(--tbp-ink-soft);
  padding: 0.15rem 0.35rem;
  border-radius: 6px;
}

.tbp-modal__x:hover {
  color: var(--tbp-ink);
  background: rgba(148, 163, 184, 0.12);
}

.tbp-modal__body {
  padding: 1rem;
  overflow-y: auto;
  flex: 1 1 auto;
}

.tbp-modal__foot {
  display: flex;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  border-top: 1px solid var(--tbp-border);
}