/* ============================================================
   API Documentation Styles
   Depends on CSS variables from base.css
   ============================================================ */

/* ---- 1. Main Layout ---- */
.api-doc {
  display: flex;
  width: 100%;
  height: 100%;
  min-height: 0;
  background: var(--bg1);
  position: relative;
}

/* ---- 2. Left Navigation ---- */
.api-nav {
  width: 248px;
  min-width: 248px;
  position: sticky;
  top: 0;
  align-self: flex-start;
  max-height: 100vh;
  height: 100vh;
  overflow-y: auto;
  overflow-x: hidden;
  background: var(--surface-over-watermark);
  border-right: 1px solid var(--border);
  padding: 20px 0 28px;
  box-shadow: 4px 0 24px rgba(0, 0, 0, 0.04);
  scrollbar-width: thin;
  z-index: 2;
}

.api-nav::-webkit-scrollbar { width: 4px }
.api-nav::-webkit-scrollbar-thumb { background: var(--bg4); border-radius: 2px }

.api-nav-title {
  font-size: calc(11 * 1rem / 16);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 4px 22px 14px;
  color: var(--text3);
  line-height: 1.4;
  border-bottom: 1px solid var(--border);
  margin: 0 14px 12px;
}

.api-nav-link {
  display: block;
  padding: 8px 18px 8px 16px;
  margin: 2px 10px;
  border-radius: 10px;
  font-size: calc(13 * 1rem / 16);
  color: var(--text3);
  text-decoration: none;
  transition: color .15s, background .15s, border-color .15s, transform .12s;
  border-left: 3px solid transparent;
  line-height: 1.45;
}

.api-nav-link:hover {
  color: var(--text2);
  background: var(--bg3);
}

.api-nav-link.active {
  color: var(--accent);
  border-left-color: var(--accent);
  background: var(--accent-bg);
  font-weight: 600;
}

.api-nav-group {
  font-size:calc(12 * 1rem / 16);
  text-transform: uppercase;
  font-weight: 700;
  color: var(--text3);
  padding: 0 20px;
  margin-top: 16px;
  margin-bottom: 4px;
  letter-spacing: .8px;
}

.api-nav-divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 10px 16px;
}

/* ---- 3. Right Content Body ---- */
.api-body {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 32px clamp(20px, 3vw, 40px) 120px;
  min-width: 0;
  max-width: min(920px, 100%);
  margin: 0 auto;
  box-sizing: border-box;
  scroll-behavior: smooth;
}

/* ---- 4. Section & Spacing ---- */
.api-section {
  margin-bottom: 48px;
  padding-top: 24px;
}

.api-section h2 {
  font-size:calc(24 * 1rem / 16);
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 10px;
}

.api-section h3 {
  font-size:calc(15 * 1rem / 16);
  font-weight: 600;
  color: var(--text);
  margin: 24px 0 10px;
}

.api-section p,
.api-section li {
  font-size:calc(14 * 1rem / 16);
  line-height: 1.8;
  color: var(--text2);
}

.api-section ul {
  list-style: none;
  padding-left: 0;
}

.api-section li {
  padding-left: 18px;
  position: relative;
  margin-bottom: 6px;
}

.api-section li::before {
  content: '\2022';
  position: absolute;
  left: 0;
  color: var(--accent);
}

/* ---- 5. Method Badge ---- */
.method-badge {
  display: inline-block;
  font-size:calc(11 * 1rem / 16);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .5px;
  padding: 3px 10px;
  border-radius: 6px;
  vertical-align: middle;
  line-height: 1.4;
}

.method-badge.get {
  background: rgba(0, 212, 170, .12);
  color: var(--green);
  border: 1px solid rgba(0, 212, 170, .25);
}

.method-badge.post {
  background: rgba(10, 189, 227, .12);
  color: var(--blue);
  border: 1px solid rgba(10, 189, 227, .25);
}

.method-badge.put {
  background: rgba(245, 158, 11, .12);
  color: #f59e0b;
  border: 1px solid rgba(245, 158, 11, .28);
}

.method-badge.delete {
  background: rgba(248, 113, 113, .12);
  color: #f87171;
  border: 1px solid rgba(248, 113, 113, .28);
}

/* ---- 6. Endpoint Bar ---- */
.endpoint-bar {
  display: flex;
  align-items: center;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 16px;
  margin: 8px 0 20px;
  font-family: 'SF Mono', Menlo, Consolas, monospace;
  font-size:calc(13.5 * 1rem / 16);
  color: var(--accent);
  letter-spacing: .3px;
  word-break: break-all;
}

/* ---- 7. Param Table ---- */
.param-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin: 10px 0 20px;
  font-size:calc(13 * 1rem / 16);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.param-table th {
  text-align: left;
  padding: 10px 14px;
  background: var(--bg3);
  color: var(--text);
  font-weight: 600;
  font-size:calc(11 * 1rem / 16);
  text-transform: uppercase;
  letter-spacing: .5px;
  border-bottom: 1px solid var(--border);
}

.param-table th:not(:last-child),
.param-table td:not(:last-child) {
  border-right: 1px solid var(--border);
}

.param-table td {
  padding: 10px 14px;
  font-size:calc(13 * 1rem / 16);
  color: var(--text2);
  vertical-align: top;
  border-bottom: 1px solid var(--border);
}

.param-table tr:last-child td {
  border-bottom: none;
}

.param-table tr:hover td {
  background: rgba(0, 212, 170, .02);
}

.param-table td code {
  font-family: 'SF Mono', Menlo, Consolas, monospace;
  font-size:calc(12 * 1rem / 16);
  background: var(--bg3);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--accent);
  border: 1px solid var(--border);
}

.required-badge {
  display: inline-block;
  font-size:calc(10 * 1rem / 16);
  padding: 1px 6px;
  border-radius: 4px;
  background: rgba(255, 71, 87, .1);
  color: var(--red);
  margin-left: 6px;
  font-weight: 600;
}

/* ---- 8. Code Block ---- */
.code-block {
  margin: 12px 0 20px;
}

.code-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--bg4);
  padding: 8px 16px;
  border-radius: 12px 12px 0 0;
  border: 1px solid var(--border);
  border-bottom: none;
}

.code-lang {
  font-size:calc(11 * 1rem / 16);
  font-weight: 600;
  color: var(--text3);
  text-transform: uppercase;
  letter-spacing: .4px;
}

.code-copy {
  background: transparent;
  border: none;
  color: var(--text3);
  font-size:calc(11 * 1rem / 16);
  cursor: pointer;
  padding: 2px 6px;
  border-radius: 4px;
  transition: color .15s;
  font-family: var(--font);
}

.code-copy:hover {
  color: var(--accent);
}

.code-block pre {
  margin: 0;
  background: var(--bg4);
  border: 1px solid var(--border);
  border-radius: 0 0 12px 12px;
  padding: 16px 18px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  font-size:calc(12.5 * 1rem / 16);
  line-height: 1.7;
}

.code-block pre code {
  color: var(--text);
  font-family: 'SF Mono', Menlo, Consolas, monospace;
  background: none;
  padding: 0;
  border: none;
  border-radius: 0;
}

/* ---- 9. Tip & Warn Boxes ---- */
.api-tip {
  background: rgba(10, 189, 227, .06);
  border: 1px solid rgba(10, 189, 227, .18);
  border-radius: var(--radius);
  padding: 14px 18px;
  margin: 12px 0 20px;
  font-size:calc(13 * 1rem / 16);
  color: var(--text2);
  line-height: 1.7;
}

.api-tip strong {
  color: var(--blue);
}

.api-warn {
  background: rgba(255, 195, 18, .06);
  border: 1px solid rgba(255, 195, 18, .18);
  border-radius: var(--radius);
  padding: 14px 18px;
  margin: 12px 0 20px;
  font-size:calc(13 * 1rem / 16);
  color: var(--text2);
  line-height: 1.7;
}

.api-warn strong {
  color: var(--yellow);
}

/* ---- 10. Collapsible Details ---- */
details.compat-details {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin: 20px 0;
}

details.compat-details summary {
  padding: 12px 16px;
  cursor: pointer;
  font-weight: 600;
  font-size:calc(13.5 * 1rem / 16);
  color: var(--text2);
  background: var(--bg2);
  border-radius: var(--radius);
  list-style: none;
  user-select: none;
  transition: border-radius .15s;
}

details.compat-details summary::-webkit-details-marker { display: none }

details.compat-details summary::before {
  content: '\25B8';
  display: inline-block;
  margin-right: 8px;
  font-size:calc(12 * 1rem / 16);
  color: var(--text3);
  transition: transform .2s;
}

details.compat-details[open] summary::before {
  transform: rotate(90deg);
}

details.compat-details[open] summary {
  border-radius: var(--radius) var(--radius) 0 0;
  border-bottom: 1px solid var(--border);
}

details.compat-details > :not(summary) {
  padding: 0 16px;
}

details.compat-details > :first-of-type:not(summary) {
  padding-top: 16px;
}

details.compat-details > :last-child {
  padding-bottom: 16px;
}

details.compat-details .compat-details-body {
  padding: 16px;
}

/* ---- 11. Divider ---- */
.api-divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 0 0 8px;
}

/* ---- 12. Pricing Channel ---- */
.pricing-channel {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 22px;
  margin-bottom: 18px;
}

.pricing-channel-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}

.pricing-channel-head .ch-name {
  font-size:calc(16 * 1rem / 16);
  font-weight: 700;
  color: var(--text);
}

.pricing-channel-head .ch-default {
  font-size:calc(10 * 1rem / 16);
  padding: 2px 8px;
  border-radius: 8px;
  background: var(--accent);
  color: #080b12;
  font-weight: 600;
}

.pricing-channel-head .ch-reverse-tag {
  font-size:calc(10 * 1rem / 16);
  padding: 2px 8px;
  border-radius: 8px;
  background: var(--red);
  color: #fff;
  font-weight: 600;
}

.ch-reverse-warn {
  font-size:calc(12 * 1rem / 16);
  color: var(--red);
  background: rgba(255, 71, 87, .06);
  border-radius: 6px;
  padding: 8px 12px;
  margin-bottom: 12px;
}

.pricing-channel-head .ch-desc {
  font-size:calc(12 * 1rem / 16);
  color: var(--text3);
  margin-left: auto;
}

.pricing-type-title {
  font-size:calc(13 * 1rem / 16);
  font-weight: 600;
  color: var(--accent);
  margin: 14px 0 8px;
  padding-left: 12px;
  border-left: 2px solid var(--accent);
}

/* ---- 13. Doc blocks (right column) ---- */
.api-doc-block {
  scroll-margin-top: 24px;
  margin-bottom: 24px;
  padding: 24px clamp(18px, 2.5vw, 30px) 28px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.05) inset,
    0 8px 32px rgba(0, 0, 0, 0.06);
}

.api-doc-block--hero {
  background: linear-gradient(160deg, var(--bg2) 0%, var(--bg3) 55%, var(--bg2) 100%);
  border-color: rgba(10, 189, 227, 0.22);
  padding-top: 26px;
  padding-bottom: 26px;
}

.api-doc-block--flow .api-tip--follow {
  margin-top: 12px;
}

.api-doc-block h1 {
  font-size: calc(26 * 1rem / 16);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 0 14px;
  color: var(--text);
  line-height: 1.25;
}

.api-doc-block h2 {
  font-size: calc(17 * 1rem / 16);
  font-weight: 700;
  margin: 0 0 14px;
  color: var(--text);
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  line-height: 1.35;
}

.api-doc-block h3 {
  font-size: calc(11 * 1rem / 16);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text3);
  margin: 22px 0 10px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border);
}

.api-doc-block h3:first-of-type {
  margin-top: 20px;
}

.api-doc-block h4 {
  font-size: calc(13 * 1rem / 16);
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: none;
  color: var(--text2);
  margin: 20px 0 8px;
  padding: 0;
  border: none;
}

.api-doc-block h4:first-of-type {
  margin-top: 8px;
}

/* 正文内直接使用的 <pre>（未包 .code-block） */
.api-doc-block > pre {
  margin: 8px 0 18px;
  padding: 14px 16px;
  background: var(--bg4);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  font-size: calc(12.5 * 1rem / 16);
  line-height: 1.65;
  max-width: 100%;
}

.api-doc-block > pre code {
  font-family: 'SF Mono', Menlo, Consolas, 'Liberation Mono', monospace;
  font-size: inherit;
  color: var(--text);
  background: transparent;
  border: none;
  padding: 0;
  white-space: pre;
  word-break: normal;
}

.api-doc-block > p {
  font-size: calc(14 * 1rem / 16);
  line-height: 1.75;
  color: var(--text2);
  margin: 0 0 14px;
  max-width: 68ch;
}

.api-doc-block > p:last-child {
  margin-bottom: 0;
}

.api-doc-lead {
  font-size: calc(15 * 1rem / 16) !important;
  line-height: 1.72 !important;
  max-width: 62ch !important;
}

.api-doc-muted {
  font-size: calc(12 * 1rem / 16) !important;
  color: var(--text3) !important;
  margin: -6px 0 16px !important;
  max-width: none !important;
}

.api-path {
  font-family: 'SF Mono', Menlo, Consolas, monospace;
  font-size: calc(13 * 1rem / 16);
  margin: 0 0 16px;
  padding: 11px 14px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--accent);
  letter-spacing: 0.02em;
  word-break: break-all;
}

.api-path code {
  font-family: inherit;
  font-size: inherit;
  background: transparent !important;
  border: none !important;
  padding: 0 !important;
  color: inherit !important;
}

.api-path--inline {
  margin: 0;
  flex: 1;
  min-width: 0;
}

.api-multi-endpoint {
  margin-top: 8px;
}

.api-multi-row {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 14px;
}

.api-multi-row:first-child {
  margin-top: 0;
}

.api-multi-endpoint > p {
  margin: 6px 0 0 0 !important;
  padding-left: 0;
  max-width: none !important;
  font-size: calc(13 * 1rem / 16) !important;
}

.api-doc-list {
  margin: 0 0 16px;
  padding: 12px 16px 12px 36px;
  list-style: disc;
  color: var(--text2);
  line-height: 1.75;
  font-size: calc(14 * 1rem / 16);
  background: var(--bg3);
  border-radius: 10px;
  border: 1px solid var(--border);
}

.api-doc-block .param-table {
  margin-top: 4px;
  margin-bottom: 16px;
}

.api-doc-block .param-table:last-child {
  margin-bottom: 0;
}

.api-doc-block .code-block {
  margin-top: 8px;
  margin-bottom: 4px;
}

.api-doc-block .api-tip,
.api-doc-block .api-warn {
  max-width: none;
}

/* ---- 14. Responsive（API 文档：窄屏横向目录 + 正文全宽） ---- */
@media (max-width: 900px) {
  .api-doc {
    flex-direction: column;
    height: auto;
    min-height: 0;
  }

  .api-nav {
    display: flex;
    flex-direction: row;
    flex-wrap: nowrap;
    align-items: center;
    gap: 6px;
    width: 100%;
    min-width: 0;
    height: auto;
    max-height: none;
    position: sticky;
    top: 0;
    z-index: 12;
    overflow-x: auto;
    overflow-y: hidden;
    -webkit-overflow-scrolling: touch;
    padding: 10px 12px;
    border-right: none;
    border-bottom: 1px solid var(--border);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
  }

  .api-nav-title {
    display: none;
  }

  .api-nav-link {
    flex: 0 0 auto;
    margin: 0;
    padding: 8px 14px;
    border-left: none;
    border-bottom: 2px solid transparent;
    border-radius: 999px;
    white-space: nowrap;
    font-size: calc(12 * 1rem / 16);
  }

  .api-nav-link.active {
    border-left-color: transparent;
    border-bottom-color: transparent;
    box-shadow: inset 0 0 0 1px rgba(10, 189, 227, 0.35);
  }

  .api-nav-divider {
    flex: 0 0 1px;
    width: 1px;
    align-self: stretch;
    min-height: 28px;
    margin: 4px 2px;
    border: none;
    background: var(--border);
  }

  .api-body {
    padding: 20px 16px 80px;
    max-width: none;
  }

  .api-doc-block {
    padding: 18px 16px 22px;
    border-radius: 14px;
    margin-bottom: 18px;
  }

  .api-doc-block > pre {
    padding: 12px 12px;
    font-size: calc(11.5 * 1rem / 16);
  }

  .endpoint-bar {
    font-size: calc(12 * 1rem / 16);
    padding: 8px 12px;
  }

  .param-table {
    font-size: calc(12 * 1rem / 16);
  }

  .param-table th,
  .param-table td {
    padding: 8px 10px;
  }
}