/**
 * Chinese English Name Matcher 工具页样式。
 * @author jianfeng.hu
 *
 * 基座是 birth-chart-dark.css（深色星空主题变量 + body 星点背景 + .nav + .wrap），
 * 本文件只定义工具页组件。前缀统一用 .tool-* 避免与全局样式类撞名。
 */

.tool-wrap {
  max-width: 820px;
  margin: 0 auto;
  padding: 48px 24px 72px;
  width: 100%;
}

/* ---------- Hero ---------- */
.tool-eyebrow {
  display: inline-block;
  font-size: var(--fs-caption);
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 12px;
}

.tool-hero h1 {
  font-size: clamp(30px, 5vw, 44px);
  line-height: 1.12;
  margin: 0 0 16px;
  letter-spacing: -0.02em;
}

.tool-intro {
  font-size: var(--fs-body);
  line-height: 1.65;
  color: var(--ink-soft);
  max-width: 640px;
  margin: 0;
}

/* ---------- 表单卡片 ---------- */
.tool-card {
  margin-top: 36px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: var(--surface);
  box-shadow: var(--card-shadow);
}

.tool-mode {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  padding: 6px;
  margin-bottom: 22px;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  background: rgba(255, 255, 255, .03);
}

.tool-mode-btn {
  min-height: 44px;
  padding: 0 16px;
  border: 0;
  border-radius: var(--r-pill);
  background: transparent;
  color: var(--ink-soft);
  font: 600 14px/1.2 var(--font);
  cursor: pointer;
  transition: background .18s ease, color .18s ease;
}

.tool-mode-btn:hover {
  color: var(--ink);
}

.tool-mode-btn.is-active {
  background: var(--primary);
  color: #fff;
}

.tool-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.tool-field-query {
  grid-column: 1 / -1;
}

.tool-field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.tool-label {
  font-size: var(--fs-caption);
  color: var(--ink-soft);
  letter-spacing: .02em;
}

.tool-label em {
  font-style: normal;
  color: var(--ink-muted);
}

.tool-field input,
.tool-field select {
  min-height: 48px;
  padding: 0 14px;
  border: 1px solid var(--line-strong);
  border-radius: var(--r-md);
  background: rgba(255, 255, 255, .05);
  color: var(--ink);
  font: 500 15px/1.2 var(--font);
  outline: none;
  transition: border-color .18s ease, box-shadow .18s ease;
}

.tool-field select {
  appearance: none;
  background-image:
    linear-gradient(45deg, transparent 50%, var(--ink-soft) 50%),
    linear-gradient(135deg, var(--ink-soft) 50%, transparent 50%);
  background-position:
    calc(100% - 18px) 50%,
    calc(100% - 13px) 50%;
  background-size: 5px 5px;
  background-repeat: no-repeat;
  padding-right: 34px;
}

.tool-field input::placeholder {
  color: var(--ink-muted);
}

.tool-field input:focus,
.tool-field select:focus {
  border-color: var(--gold);
  box-shadow: 0 0 0 3px var(--line-gold);
}

.tool-birth {
  margin-top: 18px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: rgba(255, 255, 255, .02);
}

.tool-birth summary {
  min-height: 44px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 16px;
  cursor: pointer;
  font-size: var(--fs-body-sm);
  color: var(--ink-soft);
  list-style: none;
  user-select: none;
}

.tool-birth summary::-webkit-details-marker {
  display: none;
}

.tool-birth summary::before {
  content: '';
  width: 8px;
  height: 8px;
  border-right: 2px solid var(--gold);
  border-bottom: 2px solid var(--gold);
  transform: rotate(45deg) translateY(-2px);
  transition: transform .18s ease;
}

.tool-birth[open] summary::before {
  transform: rotate(-135deg) translateY(-2px);
}

.tool-birth summary span {
  color: var(--ink-muted);
}

.tool-birth .tool-grid {
  padding: 16px;
}

.tool-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 22px;
}

.tool-btn {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: var(--r-pill);
  font: 600 15px/1.2 var(--font);
  cursor: pointer;
  text-decoration: none;
  transition: transform .15s ease, box-shadow .15s ease, opacity .15s ease;
}

.tool-btn:active {
  transform: translateY(1px);
}

.tool-btn-primary {
  background: linear-gradient(180deg, var(--gold-soft), var(--gold));
  color: #241a05;
  box-shadow: var(--gold-glow-shadow);
}

.tool-btn-primary:hover {
  filter: brightness(1.04);
}

.tool-btn-primary:disabled {
  opacity: .6;
  cursor: default;
}

.tool-btn-ghost {
  border-color: var(--line-strong);
  background: rgba(255, 255, 255, .04);
  color: var(--ink);
}

.tool-btn-ghost:hover {
  background: rgba(255, 255, 255, .08);
}

.tool-hint {
  font-size: var(--fs-caption);
  color: var(--ink-muted);
}

/* ---------- 结果区 ---------- */
.tool-results {
  margin-top: 44px;
}

.tool-results-head h2 {
  font-size: var(--fs-h2);
  margin: 0 0 6px;
}

.tool-results-head p {
  margin: 0;
  font-size: var(--fs-body-sm);
  color: var(--ink-soft);
}

.tool-result-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-top: 22px;
}

.tool-result-card {
  display: grid;
  grid-template-columns: 52px 1fr auto;
  grid-template-areas:
    "rank body score"
    "rank meta score"
    "rank chips score";
  gap: 4px 18px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: var(--surface);
  box-shadow: var(--card-shadow);
  align-items: center;
}

.tool-result-rank {
  grid-area: rank;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 1px solid var(--line-gold);
  color: var(--gold);
  font: 700 16px/1 var(--font);
}

.tool-result-body {
  grid-area: body;
  min-width: 0;
}

.tool-result-name {
  font-size: 22px;
  font-weight: 700;
  line-height: 1.2;
  font-family: var(--cjk, 'Noto Sans SC'), var(--font);
}

.tool-result-roman {
  display: flex;
  align-items: baseline;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 4px;
  font-size: var(--fs-body-sm);
  color: var(--ink-soft);
}

.tool-result-roman b {
  font-weight: 600;
  color: var(--ink);
  font-size: var(--fs-body);
}

.tool-result-score {
  grid-area: score;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.tool-score-ring {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 3px solid var(--gold);
  color: var(--gold-soft);
  font: 700 17px/1 var(--font);
}

.tool-score-label {
  font-size: var(--fs-micro);
  color: var(--ink-muted);
  text-transform: uppercase;
  letter-spacing: .08em;
}

.tool-result-meta {
  grid-area: meta;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  font-size: var(--fs-caption);
  color: var(--ink-muted);
}

.tool-result-chips {
  grid-area: chips;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 8px;
}

.tool-chip {
  padding: 4px 10px;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  font-size: var(--fs-caption);
  color: var(--ink-soft);
  background: rgba(255, 255, 255, .03);
}

.tool-chip b {
  color: var(--ink);
  font-weight: 600;
}

.tool-result-reason {
  grid-column: 1 / -1;
  margin-top: 10px;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
  font-size: var(--fs-body-sm);
  color: var(--ink-soft);
  line-height: 1.6;
}

.tool-result-reason b {
  color: var(--ink);
}

.tool-result-more {
  margin-top: 16px;
  width: 100%;
  display: flex;
  justify-content: center;
}

.tool-result-card.is-folded {
  display: none;
}

/* 加载与空态 */
.tool-loading,
.tool-empty,
.tool-error {
  margin-top: 22px;
  padding: 28px;
  border: 1px dashed var(--line-strong);
  border-radius: var(--r-lg);
  text-align: center;
  color: var(--ink-soft);
  font-size: var(--fs-body-sm);
}

.tool-loading::before {
  content: '';
  display: inline-block;
  width: 22px;
  height: 22px;
  margin-right: 10px;
  vertical-align: middle;
  border: 2px solid var(--line-strong);
  border-top-color: var(--gold);
  border-radius: 50%;
  animation: toolSpin .8s linear infinite;
}

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

.tool-error {
  border-color: rgba(229, 124, 88, .4);
  color: #e58a62;
}

/* ---------- 分享 ---------- */
.tool-share {
  margin-top: 32px;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.tool-share-label {
  font-size: var(--fs-caption);
  color: var(--ink-muted);
  margin-right: 4px;
}

.tool-share-btn {
  min-height: 44px;
  padding: 0 16px;
  border: 1px solid var(--line-strong);
  border-radius: var(--r-pill);
  background: rgba(255, 255, 255, .04);
  color: var(--ink-soft);
  font: 500 13px/1.2 var(--font);
  cursor: pointer;
  transition: color .15s ease, border-color .15s ease;
}

.tool-share-btn:hover {
  color: var(--gold);
  border-color: var(--line-gold);
}

.tool-share-btn.is-copied {
  color: var(--gold-soft);
  border-color: var(--line-gold);
}

/* ---------- CTA ---------- */
.tool-cta {
  margin-top: 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  padding: 28px;
  border: 1px solid var(--line-gold);
  border-radius: var(--r-lg);
  background:
    radial-gradient(420px 200px at 90% -20%, rgba(249, 186, 102, .14), transparent 60%),
    var(--surface-warm);
}

.tool-cta h2 {
  font-size: var(--fs-h2);
  margin: 0 0 8px;
}

.tool-cta p {
  margin: 0;
  font-size: var(--fs-body-sm);
  color: var(--ink-soft);
  max-width: 480px;
  line-height: 1.6;
}

/* ---------- FAQ ---------- */
.tool-faq {
  margin-top: 56px;
}

.tool-faq h2 {
  font-size: var(--fs-h2);
  margin: 0 0 20px;
}

.tool-faq-item {
  border-bottom: 1px solid var(--line);
  padding: 18px 0;
}

.tool-faq-item:last-child {
  border-bottom: 0;
}

.tool-faq-item h3 {
  font-size: var(--fs-title);
  margin: 0 0 8px;
  cursor: pointer;
}

.tool-faq-item p {
  margin: 0;
  font-size: var(--fs-body-sm);
  color: var(--ink-soft);
  line-height: 1.7;
}

/* ---------- Related ---------- */
.tool-related {
  margin-top: 48px;
}

.tool-related h2 {
  font-size: var(--fs-h2);
  margin: 0 0 16px;
}

.tool-related-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.tool-related-list a {
  display: block;
  padding: 12px 0;
  color: var(--accent-gold, #f9ba66);
  font-size: var(--fs-body);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: color .15s ease, padding-left .15s ease;
}

.tool-related-list a:hover,
.tool-related-list a:focus-visible {
  color: var(--ink);
  padding-left: 8px;
}

.tool-note {
  margin-top: 40px;
  font-size: var(--fs-caption);
  color: var(--ink-muted);
  text-align: center;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* ---------- 移动端 375px ---------- */
@media (max-width: 640px) {
  .tool-wrap {
    padding: 32px 16px 56px;
  }

  .tool-card {
    padding: 20px 16px;
  }

  .tool-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .tool-field-query {
    grid-column: auto;
  }

  .tool-result-card {
    grid-template-columns: 44px 1fr auto;
    grid-template-areas:
      "rank body score"
      "rank meta score"
      "rank chips score";
    gap: 4px 12px;
    padding: 16px;
  }

  .tool-result-name {
    font-size: 19px;
  }

  .tool-cta {
    padding: 22px 18px;
  }

  .tool-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .tool-btn {
    width: 100%;
  }

  .tool-hint {
    text-align: center;
  }

  .tool-share-btn {
    flex: 1 1 30%;
    padding: 0 10px;
  }
}