/* ═══════════════════════════════════════════════════════
   SYNE Carbon — API Documentation Page
   ═══════════════════════════════════════════════════════ */

/* ── API HERO ────────────────────────────────────────── */
.api-hero {
  padding-top: 64px;
  background: var(--bg-navy);
  border-bottom: 1px solid rgba(57,172,231,.2);
  position: relative;
  overflow: hidden;
}

.api-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(57,172,231,.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(57,172,231,.06) 1px, transparent 1px);
  background-size: 48px 48px;
}

.api-hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  padding: 72px 0 80px;
}

.api-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(57,172,231,.12);
  border: 1px solid rgba(57,172,231,.25);
  border-radius: 20px;
  padding: 6px 14px;
  margin-bottom: 20px;
}

.api-version {
  font-size: 11px;
  font-weight: 700;
  color: var(--blue);
  letter-spacing: .08em;
  background: rgba(57,172,231,.2);
  padding: 2px 7px;
  border-radius: 3px;
}

.api-status-dot {
  width: 6px;
  height: 6px;
  background: #4ADE80;
  border-radius: 50%;
  box-shadow: 0 0 8px #4ADE80;
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: .5; }
}

.api-status-txt {
  font-size: 12px;
  color: rgba(255,255,255,.5);
}

.api-h1 {
  font-size: clamp(34px, 4.5vw, 58px);
  font-weight: 700;
  line-height: 1.06;
  letter-spacing: -.026em;
  color: #fff;
  margin-bottom: 18px;
}

.api-h1 strong { color: var(--blue); }

.api-lead {
  font-size: 16px;
  line-height: 1.72;
  color: rgba(255,255,255,.62);
  max-width: 520px;
  margin-bottom: 28px;
}

.api-hero-ctas {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}

.api-hero-meta {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.ahm-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.ahm-val {
  font-size: 13px;
  font-weight: 700;
  color: rgba(255,255,255,.85);
  font-family: 'Courier New', monospace;
}

.ahm-lbl {
  font-size: 10.5px;
  color: rgba(255,255,255,.35);
  letter-spacing: .04em;
}

.ahm-sep {
  width: 1px;
  height: 28px;
  background: rgba(255,255,255,.1);
}

/* ── CODE WINDOWS ────────────────────────────────────── */
.code-window {
  background: #0d1117;
  border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--r-md);
  overflow: hidden;
  box-shadow: 0 8px 32px rgba(0,0,0,.35);
}

.cw-sm { border-radius: var(--r); }

.cw-chrome {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  background: #161b22;
  border-bottom: 1px solid rgba(255,255,255,.07);
}

.cw-dots { display: flex; gap: 6px; }
.cw-dot { width: 10px; height: 10px; border-radius: 50%; }
.cw-r { background: #FF5F57; }
.cw-y { background: #FFBD2E; }
.cw-g { background: #28C840; }

.cw-title {
  font-size: 11.5px;
  color: rgba(255,255,255,.35);
  flex: 1;
}

.cw-lang, .cw-copy-btn {
  font-size: 10.5px;
  font-weight: 600;
  color: rgba(255,255,255,.28);
  letter-spacing: .05em;
}

.cw-copy-btn {
  cursor: pointer;
  transition: color .15s;
  padding: 2px 8px;
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 3px;
}

.cw-copy-btn:hover { color: var(--blue); border-color: var(--blue); }

.cw-body { padding: 20px; overflow-x: auto; }

.code-block {
  font-family: 'Courier New', 'SF Mono', 'Fira Code', monospace;
  font-size: 12.5px;
  line-height: 1.75;
  color: #c9d1d9;
  white-space: pre;
  tab-size: 2;
  margin: 0;
}

/* Syntax highlight tokens */
.c-kw  { color: #ff7b72; }   /* keywords */
.c-mod { color: #79c0ff; }   /* modules */
.c-fn  { color: #d2a8ff; }   /* functions */
.c-str { color: #a5d6ff; }   /* strings */
.c-num { color: #79c0ff; }   /* numbers */
.c-key { color: #7ee787; }   /* JSON keys */
.c-comm{ color: #8b949e; font-style: italic; }  /* comments */

/* ── PAGE LAYOUT ─────────────────────────────────────── */
.api-page-body {
  display: grid;
  grid-template-columns: 240px 1fr;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 48px;
  gap: 0;
  align-items: start;
}

/* ── SIDEBAR ─────────────────────────────────────────── */
.api-sidebar {
  position: sticky;
  top: 112px;
  padding: 32px 0 32px 0;
  border-right: 1px solid var(--line);
  max-height: calc(100vh - 130px);
  overflow-y: auto;
  scrollbar-width: none;
}

.api-sidebar::-webkit-scrollbar { display: none; }

.asb-section { margin-bottom: 24px; }

.asb-head {
  font-size: 9.5px;
  font-weight: 700;
  letter-spacing: .13em;
  text-transform: uppercase;
  color: var(--ink-4);
  padding: 0 20px 8px 20px;
}

.asb-link {
  display: block;
  padding: 6px 20px;
  font-size: 13px;
  color: var(--ink-3);
  transition: color .13s, background .13s;
  border-left: 2px solid transparent;
  margin-left: -1px;
}

.asb-link:hover { color: var(--ink); background: var(--bg-grey); }
.asb-link.active { color: var(--blue); border-left-color: var(--blue); background: var(--blue-lt); }
.asb-indent { padding-left: 32px; font-size: 12.5px; }

/* ── MAIN CONTENT ────────────────────────────────────── */
.api-main {
  padding: 48px 0 96px 48px;
}

.api-section {
  padding-bottom: 64px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 64px;
}

.api-section:last-child {
  border-bottom: none;
}

.api-sec-header {
  margin-bottom: 36px;
}

.api-sec-title {
  font-size: clamp(22px, 2.6vw, 30px);
  font-weight: 700;
  letter-spacing: -.022em;
  color: var(--ink);
  margin-bottom: 10px;
}

.api-sec-desc {
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink-2);
  max-width: 680px;
}

/* ── API CONTENT GRID ────────────────────────────────── */
.api-content-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: start;
}

/* ── INLINE CODE ─────────────────────────────────────── */
.inline-code {
  font-family: 'Courier New', monospace;
  font-size: 12.5px;
  background: var(--blue-lt);
  color: var(--blue-darker);
  padding: 2px 6px;
  border-radius: 3px;
  border: 1px solid var(--blue-mid);
}

/* ── STEPS ───────────────────────────────────────────── */
.steps-list {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.step-item {
  display: flex;
  gap: 20px;
  align-items: flex-start;
}

.step-num {
  width: 32px;
  height: 32px;
  background: var(--blue);
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  border-radius: 50%;
  display: grid;
  place-items: center;
  flex-shrink: 0;
}

.step-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 8px;
}

.step-desc {
  font-size: 14px;
  line-height: 1.68;
  color: var(--ink-2);
  margin-bottom: 14px;
}

/* ── CODE TABS ───────────────────────────────────────── */
.code-tabs { border-radius: var(--r-md); overflow: hidden; }

.ct-tabs {
  display: flex;
  background: #161b22;
  border: 1px solid rgba(255,255,255,.1);
  border-bottom: none;
  border-radius: var(--r-md) var(--r-md) 0 0;
  overflow: hidden;
}

.ct-tab {
  padding: 8px 16px;
  font-size: 12px;
  font-weight: 600;
  color: rgba(255,255,255,.35);
  background: none;
  border: none;
  cursor: pointer;
  transition: color .15s, background .15s;
  border-bottom: 2px solid transparent;
}

.ct-tab:hover { color: rgba(255,255,255,.7); }
.ct-tab.active { color: var(--blue); border-bottom-color: var(--blue); }

.ct-pane .code-window { border-radius: 0 0 var(--r-md) var(--r-md); }

/* ── API PROSE ───────────────────────────────────────── */
.api-prose {
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-2);
}

.api-prose p { margin-bottom: 16px; }

.api-subhead {
  font-size: 13px;
  font-weight: 700;
  color: var(--ink);
  margin: 24px 0 12px;
  text-transform: uppercase;
  letter-spacing: .08em;
}

.text-link { color: var(--blue); font-weight: 600; }
.text-link:hover { text-decoration: underline; }

/* ── ENDPOINT BLOCKS ─────────────────────────────────── */
.endpoint-block {
  border: 1.5px solid var(--line);
  border-radius: var(--r-lg);
  margin-bottom: 28px;
  overflow: hidden;
}

.endpoint-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 20px;
  background: var(--bg-grey);
  border-bottom: 1px solid var(--line);
}

.ep-method {
  font-size: 10.5px;
  font-weight: 800;
  letter-spacing: .08em;
  padding: 4px 9px;
  border-radius: 3px;
  flex-shrink: 0;
}

.ep-get  { background: #DCFCE7; color: #166534; }
.ep-post { background: var(--blue-lt); color: var(--blue-dark); }
.ep-del  { background: #FEE2E2; color: #991B1B; }

.ep-path {
  font-family: 'Courier New', monospace;
  font-size: 13px;
  font-weight: 700;
  color: var(--ink);
}

.ep-desc {
  font-size: 12.5px;
  color: var(--ink-3);
  margin-left: auto;
}

.endpoint-block > .api-content-grid,
.endpoint-block > .param-table {
  padding: 20px;
}

/* ── PARAM TABLE ─────────────────────────────────────── */
.param-table {
  border: 1px solid var(--line);
  border-radius: var(--r);
  overflow: hidden;
  font-size: 13px;
}

.pt-head {
  background: var(--bg-grey);
  padding: 8px 14px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--ink-3);
  border-bottom: 1px solid var(--line);
}

.pt-row {
  display: grid;
  grid-template-columns: 180px 100px 1fr;
  gap: 12px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--line);
  align-items: start;
}

.pt-row:last-child { border-bottom: none; }

.pt-name { font-weight: 600; color: var(--ink); }
.pt-type { color: var(--blue-dark); font-family: 'Courier New', monospace; font-size: 11.5px; padding-top: 2px; }
.pt-desc { color: var(--ink-2); line-height: 1.5; }
.pt-req  { font-size: 10px; color: #DC2626; font-weight: 700; background: #FEE2E2; padding: 1px 5px; border-radius: 2px; margin-left: 4px; }

/* ── KEY TYPES ───────────────────────────────────────── */
.key-types { display: flex; flex-direction: column; gap: 10px; }

.key-type {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.kt-label {
  font-size: 10px;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 3px;
  border: 1px solid;
  white-space: nowrap;
  flex-shrink: 0;
  margin-top: 2px;
}

.kt-live       { color: #166534; background: #DCFCE7; border-color: #BBF7D0; }
.kt-sandbox    { color: var(--blue-dark); background: var(--blue-lt); border-color: var(--blue-mid); }
.kt-restricted { color: #B45309; background: var(--amber-lt); border-color: #FDE68A; }

.kt-name { font-size: 13px; margin-bottom: 3px; }
.kt-desc { font-size: 12.5px; color: var(--ink-3); line-height: 1.5; }

/* ── ERROR TABLE ─────────────────────────────────────── */
.error-table { border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; font-size: 13px; }

.et-row {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 16px;
  padding: 9px 14px;
  border-bottom: 1px solid var(--line);
  align-items: center;
}

.et-row:last-child { border-bottom: none; }
.et-head { background: var(--bg-grey); font-weight: 700; font-size: 11px; text-transform: uppercase; letter-spacing: .08em; color: var(--ink-3); }

/* ── WEBSOCKET GRID ──────────────────────────────────── */
.ws-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.ws-card {
  background: var(--bg-grey);
  border: 1.5px solid var(--line);
  border-radius: var(--r-lg);
  padding: 24px;
  transition: border-color .18s;
}

.ws-card:hover { border-color: var(--blue-mid); }

.ws-top {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 12px;
}

.ws-badge {
  font-size: 10px;
  color: var(--ink-4);
  font-family: 'Courier New', monospace;
}

.ws-path {
  font-family: 'Courier New', monospace;
  font-size: 14px;
  font-weight: 700;
  color: var(--blue);
}

.ws-name {
  font-size: 14px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 8px;
}

.ws-desc { font-size: 13px; line-height: 1.62; color: var(--ink-2); }

/* ── SDK GRID ────────────────────────────────────────── */
.sdk-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.sdk-card {
  background: var(--bg-white);
  border: 1.5px solid var(--line);
  border-radius: var(--r-lg);
  padding: 24px;
  transition: border-color .18s, box-shadow .18s;
}

.sdk-card:hover {
  border-color: var(--blue-mid);
  box-shadow: var(--sh-sm);
}

.sdk-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--r);
  display: grid;
  place-items: center;
  font-size: 13px;
  font-weight: 800;
  margin-bottom: 12px;
}

.sdk-python { background: #DBEAFE; color: #1D4ED8; }
.sdk-js     { background: #FEF9C3; color: #854D0E; }
.sdk-r      { background: var(--blue-lt); color: var(--blue-dark); }
.sdk-openapi{ background: var(--indigo-lt); color: var(--indigo); }

.sdk-name { font-size: 13.5px; font-weight: 700; color: var(--ink); margin-bottom: 4px; }
.sdk-pkg  { font-size: 12px; color: var(--ink-4); margin-bottom: 10px; }
.sdk-desc { font-size: 12.5px; line-height: 1.62; color: var(--ink-2); margin-bottom: 14px; }
.sdk-links { display: flex; gap: 10px; }
.sdk-link { font-size: 12px; font-weight: 600; color: var(--blue); transition: color .15s; }
.sdk-link:hover { color: var(--blue-dark); text-decoration: underline; }

/* ── PLANS TABLE ─────────────────────────────────────── */
.plans-table {
  border: 1.5px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
}

.plans-head {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr 1.3fr;
  background: var(--bg-navy);
  padding: 14px 20px;
  gap: 12px;
}

.ph-col {
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: rgba(255,255,255,.4);
}

.ph-pro { color: var(--blue); }
.ph-enterprise { color: rgba(255,255,255,.7); }

.plans-row {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr 1.3fr;
  padding: 12px 20px;
  gap: 12px;
  border-bottom: 1px solid var(--line);
  align-items: center;
}

.plans-row:last-child { border-bottom: none; }

.plans-row:nth-child(even) { background: var(--bg-grey); }

.pr-label { font-size: 13.5px; font-weight: 600; color: var(--ink); }

.pr-val {
  font-size: 12.5px;
  color: var(--ink-2);
  font-family: 'Courier New', monospace;
}

.pr-yes { color: #16A34A; font-weight: 700; font-family: inherit; }
.pr-no  { color: var(--ink-4); font-family: inherit; }

.plans-cta-row {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr 1.3fr;
  padding: 16px 20px;
  gap: 12px;
  background: var(--bg-pale);
  border-top: 1px solid var(--blue-mid);
  align-items: center;
}

.pc-empty { }

/* ── RESPONSIVE ──────────────────────────────────────── */
@media (max-width: 1024px) {
  .api-page-body { grid-template-columns: 1fr; padding: 0 32px; }
  .api-sidebar { display: none; }
  .api-main { padding: 32px 0 64px; }
  .api-content-grid { grid-template-columns: 1fr; }
  .ws-grid { grid-template-columns: 1fr; }
  .sdk-grid { grid-template-columns: 1fr 1fr; }
  .api-hero-inner { grid-template-columns: 1fr; }
  .api-hero-right { display: none; }
  .plans-table, .plans-head, .plans-row, .plans-cta-row {
    grid-template-columns: 1fr 1fr;
  }
  .ph-starter, .ph-enterprise, .plans-row > *:nth-child(3), .plans-row > *:nth-child(5),
  .plans-cta-row > *:nth-child(3), .plans-cta-row > *:nth-child(5) { display: none; }
}

@media (max-width: 768px) {
  .api-page-body { padding: 0 20px; }
  .sdk-grid { grid-template-columns: 1fr; }
  .pt-row { grid-template-columns: 1fr 1fr; }
  .pt-type { display: none; }
}

/* ── CODE TABS PANE ──────────────────────────────────── */
.ct-pane { display: block; }
.ct-tab {
  padding: 7px 16px;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--ink-3);
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  transition: color .15s, border-color .15s;
  font-family: var(--font);
}
.ct-tab.active,
.ct-tab:hover { color: var(--blue); border-bottom-color: var(--blue); }
.ct-tabs {
  display: flex;
  border-bottom: 1px solid var(--line);
  margin-bottom: 12px;
}