/* ==========================================================================
   Rediafile Developer Portal — style.css
   A self-contained stylesheet for the server-rendered PHP application.
   Dark developer-portal theme, no external dependencies, print-friendly.
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Design tokens
   -------------------------------------------------------------------------- */
:root {
  /* surfaces */
  --bg-0:        #0b0e14;
  --bg-1:        #111621;
  --bg-2:        #161c2b;
  --bg-3:        #1c2336;
  --bg-hover:    #212a40;
  --border:      #232c43;
  --border-soft: #1a2133;

  /* text */
  --text:        #e4e8f1;
  --text-dim:    #9aa5b8;
  --text-mute:   #6b7689;
  --text-bright: #ffffff;

  /* accents */
  --accent:      #6366f1;
  --accent-hi:   #818cf8;
  --accent-dim:  #4f46e5;
  --accent-bg:   rgba(99,102,241,.12);
  --accent-brd:  rgba(99,102,241,.35);

  /* semantic */
  --green:       #22c55e;
  --green-bg:    rgba(34,197,94,.12);
  --red:         #ef4444;
  --red-bg:      rgba(239,68,68,.12);
  --amber:       #f59e0b;
  --amber-bg:    rgba(245,158,11,.12);
  --blue:        #3b82f6;
  --blue-bg:     rgba(59,130,246,.12);
  --purple:      #a855f7;
  --purple-bg:   rgba(168,85,247,.12);
  --cyan:        #06b6d4;

  /* HTTP method colours */
  --m-get:    #3b82f6;
  --m-post:   #22c55e;
  --m-put:    #f59e0b;
  --m-patch:  #a855f7;
  --m-delete: #ef4444;

  /* code */
  --code-bg:    #0d1119;
  --code-brd:   #1e2640;
  --code-text:  #c9d1e3;

  /* layout */
  --sidebar-w: 264px;
  --topbar-h:   60px;
  --radius:     10px;
  --radius-sm:  6px;
  --radius-lg:  16px;
  --gap:        24px;
  --gap-sm:     12px;

  /* type */
  --font-sans:  -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono:  "SF Mono", "Fira Code", "Fira Mono", "Roboto Mono", "Courier New", monospace;
  --font-size:  14px;
  --shadow:     0 1px 3px rgba(0,0,0,.3), 0 4px 12px rgba(0,0,0,.2);
  --shadow-lg:  0 8px 32px rgba(0,0,0,.35);
}

/* --------------------------------------------------------------------------
   2. Reset & base
   -------------------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: var(--font-size); -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font-sans);
  font-size: var(--font-size);
  line-height: 1.6;
  color: var(--text);
  background: var(--bg-0);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: var(--accent-hi); text-decoration: none; transition: color .15s; }
a:hover { color: var(--text-bright); }

code, pre, .config-code-block, .json-sample {
  font-family: var(--font-mono);
  font-size: .85rem;
}

h1, h2, h3, h4, h5 { font-weight: 700; line-height: 1.3; color: var(--text-bright); }
h1 { font-size: 1.75rem; }
h2 { font-size: 1.35rem; }
h3 { font-size: 1.15rem; }
h4 { font-size: 1rem; }

p { margin-bottom: .75rem; }
ul, ol { margin-bottom: .75rem; padding-left: 1.25rem; }
li { margin-bottom: .3rem; }

input, textarea, select, button { font-family: inherit; font-size: inherit; }

/* --------------------------------------------------------------------------
   3. App shell — sidebar + main area
   -------------------------------------------------------------------------- */
.app-shell {
  display: flex;
  min-height: 100vh;
}

/* --- Sidebar --- */
.sidebar {
  width: var(--sidebar-w);
  flex-shrink: 0;
  background: var(--bg-1);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 20px 20px 18px;
  border-bottom: 1px solid var(--border-soft);
}
.brand-mark {
  width: 40px; height: 40px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), var(--purple));
  color: #fff;
  font-weight: 800;
  font-size: 1.35rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.brand-name { font-weight: 700; font-size: .95rem; color: var(--text-bright); line-height: 1.2; }
.brand-sub  { font-size: .72rem; color: var(--text-mute); margin-top: 2px; }

.nav { padding: 12px; flex: 1; }
.nav-item {
  display: flex;
  align-items: center;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  color: var(--text-dim);
  margin-bottom: 4px;
  font-weight: 500;
  transition: background .15s, color .15s;
}
.nav-item:hover { background: var(--bg-hover); color: var(--text); }
.nav-item.active { background: var(--accent-bg); color: var(--accent-hi); }
.nav-item.active .nav-label { font-weight: 600; }
.nav-label { font-size: .9rem; }

/* VPS widget */
.vps-widget {
  margin: 12px;
  padding: 14px;
  border-radius: var(--radius);
  background: var(--bg-2);
  border: 1px solid var(--border);
}
.vps-widget-head {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: .8rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
}
.vps-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 8px var(--green);
}
.vps-widget-text {
  font-size: .76rem;
  color: var(--text-mute);
  margin-bottom: 8px;
  line-height: 1.4;
}
.vps-widget-link {
  font-size: .8rem;
  font-weight: 600;
  color: var(--accent-hi);
}

.sidebar-footer {
  padding: 14px 20px;
  border-top: 1px solid var(--border-soft);
  display: flex;
  justify-content: space-between;
  font-size: .72rem;
  color: var(--text-mute);
}
.sidebar-footer .rev { font-family: var(--font-mono); }

/* --- Main area --- */
.main-area {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

/* --- Topbar --- */
.topbar {
  height: var(--topbar-h);
  background: var(--bg-1);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 28px;
  position: sticky;
  top: 0;
  z-index: 50;
  gap: 16px;
}
.topbar-search { flex: 1; max-width: 420px; }
.topbar-lang { display: flex; align-items: center; gap: 10px; }
.lang-label { font-size: .72rem; color: var(--text-mute); }

.search-box input[type="search"] {
  width: 100%;
  padding: 9px 14px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  outline: none;
  transition: border-color .15s;
}
.search-box input[type="search"]:focus { border-color: var(--accent-brd); }
.search-box input[type="search"]::placeholder { color: var(--text-mute); }

.lang-pills { display: flex; gap: 4px; }
.lang-pill {
  padding: 5px 11px;
  border-radius: 6px;
  font-size: .75rem;
  font-weight: 600;
  color: var(--text-dim);
  background: var(--bg-2);
  border: 1px solid var(--border);
  transition: all .15s;
}
.lang-pill:hover { color: var(--text); border-color: var(--accent-brd); }
.lang-pill.active { background: var(--accent); color: #fff; border-color: var(--accent); }

/* --- Content --- */
.content {
  flex: 1;
  padding: 28px;
  overflow-x: hidden;
}

/* --------------------------------------------------------------------------
   4. Buttons
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 9px 18px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: .85rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all .15s;
  text-decoration: none;
  white-space: nowrap;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover { background: var(--accent-hi); color: #fff; }
.btn-ghost {
  background: var(--bg-2);
  color: var(--text-dim);
  border-color: var(--border);
}
.btn-ghost:hover { background: var(--bg-hover); color: var(--text); border-color: var(--accent-brd); }
.btn-sm { padding: 5px 12px; font-size: .78rem; }
.btn-lg { padding: 12px 28px; font-size: .95rem; }

/* --------------------------------------------------------------------------
   5. Cards & surfaces
   -------------------------------------------------------------------------- */
.endpoint-card,
.article-card,
.preset-card,
.metric-card,
.error-card {
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.endpoint-card {
  padding: 20px;
  margin-bottom: var(--gap);
}

.endpoint-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}
.endpoint-path {
  font-family: var(--font-mono);
  font-size: .9rem;
  color: var(--text-bright);
  background: var(--bg-2);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}
.endpoint-title { margin-bottom: 6px; }
.endpoint-desc { color: var(--text-dim); margin-bottom: 6px; }
.endpoint-notes { color: var(--text-mute); font-size: .82rem; }
.endpoint-notes em { color: var(--amber); }

.sandbox-link { margin-left: auto; }

/* --------------------------------------------------------------------------
   6. HTTP method badges
   -------------------------------------------------------------------------- */
.method-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 54px;
  padding: 3px 10px;
  border-radius: 5px;
  font-family: var(--font-mono);
  font-size: .72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .5px;
  color: #fff;
}
.badge-get    { background: var(--m-get); }
.badge-post   { background: var(--m-post); }
.badge-put    { background: var(--m-put); }
.badge-patch  { background: var(--m-patch); }
.badge-delete { background: var(--m-delete); }

/* --------------------------------------------------------------------------
   7. Code blocks, tabs, panes, copy buttons
   -------------------------------------------------------------------------- */
.code-examples, .snippet-panel { margin-top: 14px; }

.code-tabs {
  display: flex;
  gap: 2px;
  border-bottom: 2px solid var(--border);
  margin-bottom: 0;
  flex-wrap: wrap;
}
.code-tab {
  padding: 7px 16px;
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  color: var(--text-mute);
  font-size: .8rem;
  font-weight: 600;
  cursor: pointer;
  transition: color .15s, border-color .15s;
  text-decoration: none;
}
.code-tab:hover { color: var(--text); }
.code-tab.active { color: var(--accent-hi); border-bottom-color: var(--accent); }

.code-pane { display: none; position: relative; }
.code-pane.active { display: block; }

pre {
  background: var(--code-bg);
  border: 1px solid var(--code-brd);
  border-radius: 0 var(--radius-sm) var(--radius-sm) var(--radius-sm);
  padding: 16px;
  overflow-x: auto;
  margin: 0;
}
pre code {
  color: var(--code-text);
  background: none;
  padding: 0;
  font-size: .82rem;
  line-height: 1.55;
  white-space: pre;
}

.json-sample {
  background: var(--code-bg);
  border: 1px solid var(--code-brd);
  border-radius: var(--radius-sm);
  padding: 14px;
  overflow-x: auto;
}
.json-sample code { color: var(--cyan); white-space: pre; }

.copy-btn, .copy-config-btn {
  position: absolute;
  top: 8px;
  right: 8px;
  padding: 4px 10px;
  font-size: .72rem;
  font-weight: 600;
  background: var(--bg-3);
  color: var(--text-dim);
  border: 1px solid var(--border);
  border-radius: 5px;
  cursor: pointer;
  z-index: 2;
  transition: all .15s;
}
.copy-btn:hover, .copy-config-btn:hover { color: var(--text); border-color: var(--accent-brd); }
.copy-btn.copied { background: var(--green); color: #fff; border-color: var(--green); }

.copy-config-btn { position: relative; }

/* Config code block (VPS view) */
.code-block-wrap { margin-top: 14px; }
.config-code-block {
  background: var(--code-bg);
  border: 1px solid var(--code-brd);
  border-radius: var(--radius);
  padding: 18px;
  overflow-x: auto;
  max-height: 600px;
  overflow-y: auto;
}
.config-code-block code { color: var(--code-text); white-space: pre; line-height: 1.6; }

/* --------------------------------------------------------------------------
   8. Params table
   -------------------------------------------------------------------------- */
.params-wrap { margin-top: 14px; }
.params-wrap h4 { margin-bottom: 8px; color: var(--text-dim); font-size: .85rem; text-transform: uppercase; letter-spacing: .5px; }

.params-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .83rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.params-table th {
  background: var(--bg-2);
  padding: 8px 12px;
  text-align: left;
  font-weight: 600;
  color: var(--text-dim);
  font-size: .76rem;
  text-transform: uppercase;
  letter-spacing: .3px;
  border-bottom: 1px solid var(--border);
}
.params-table td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border-soft);
  vertical-align: top;
}
.params-table tbody tr:last-child td { border-bottom: none; }
.params-table tbody tr:hover { background: var(--bg-2); }
.param-name { font-family: var(--font-mono); color: var(--accent-hi); font-weight: 600; white-space: nowrap; }
.param-type { font-family: var(--font-mono); color: var(--text-mute); font-size: .78rem; white-space: nowrap; }
.param-desc { color: var(--text-dim); }
.param-example {
  display: inline-block;
  margin-left: 4px;
  padding: 1px 6px;
  background: var(--bg-3);
  border-radius: 4px;
  font-size: .76rem;
  color: var(--cyan);
}
.req-yes { color: var(--red); font-weight: 600; font-size: .76rem; }
.req-no  { color: var(--text-mute); font-size: .76rem; }
.req-note { font-size: .72rem; color: var(--text-mute); margin-top: 2px; }

/* --------------------------------------------------------------------------
   9. Sample response
   -------------------------------------------------------------------------- */
.sample-response { margin-top: 14px; }
.sample-response h4 { margin-bottom: 8px; color: var(--text-dim); font-size: .85rem; text-transform: uppercase; letter-spacing: .5px; }

/* --------------------------------------------------------------------------
   10. Documentation view — banner, TOC, quickstart, sections
   -------------------------------------------------------------------------- */
.docs-view { max-width: 1100px; }

.docs-banner {
  background: linear-gradient(135deg, var(--bg-2), var(--bg-3));
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  margin-bottom: var(--gap);
}
.docs-banner-inner { display: flex; flex-direction: column; gap: 8px; align-items: flex-start; }
.docs-banner h1 { font-size: 2rem; }
.docs-banner-sub { color: var(--text-dim); font-size: 1rem; }
.api-version-badge {
  display: inline-block;
  padding: 3px 12px;
  background: var(--accent-bg);
  color: var(--accent-hi);
  border: 1px solid var(--accent-brd);
  border-radius: 20px;
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .5px;
}
.base-url-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 6px;
  font-size: .82rem;
  color: var(--text-mute);
}
.base-url-chip code {
  padding: 3px 8px;
  background: var(--code-bg);
  border: 1px solid var(--code-brd);
  border-radius: 4px;
  color: var(--cyan);
}

.docs-layout {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: var(--gap);
  align-items: start;
}
.docs-toc {
  position: sticky;
  top: calc(var(--topbar-h) + 20px);
}
.docs-toc-inner {
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
}
.docs-toc-inner h3 { font-size: .8rem; text-transform: uppercase; letter-spacing: .5px; color: var(--text-mute); margin-bottom: 10px; }
.toc-nav { display: flex; flex-direction: column; gap: 2px; }
.toc-link {
  display: block;
  padding: 6px 10px;
  border-radius: 5px;
  font-size: .82rem;
  color: var(--text-dim);
  transition: background .15s, color .15s;
}
.toc-link:hover { background: var(--bg-hover); color: var(--accent-hi); }

.docs-main { min-width: 0; }

.section-heading {
  font-size: 1.25rem;
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}

.endpoint-section { margin-bottom: var(--gap); scroll-margin-top: calc(var(--topbar-h) + 16px); }

/* Quickstart */
.quickstart { margin-bottom: var(--gap); }
.qs-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: var(--gap-sm); margin-bottom: 14px; }
.qs-step {
  display: flex;
  gap: 12px;
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
}
.qs-num {
  flex-shrink: 0;
  width: 32px; height: 32px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  font-size: .9rem;
  display: flex;
  align-items: center;
  justify-content: center;
}
.qs-body h4 { margin-bottom: 4px; }
.qs-body p { font-size: .82rem; color: var(--text-dim); margin-bottom: 0; }

.note {
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: .82rem;
  border: 1px solid;
}
.note-info { background: var(--blue-bg); border-color: rgba(59,130,246,.3); color: #93c5fd; }

/* Errors grid */
.errors-section { margin-bottom: var(--gap); scroll-margin-top: calc(var(--topbar-h) + 16px); }
.errors-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: var(--gap-sm); }
.error-card { padding: 14px; display: flex; gap: 12px; align-items: flex-start; }
.error-card.err-4 { border-left: 3px solid var(--amber); }
.error-card.err-5 { border-left: 3px solid var(--red); }
.error-code {
  flex-shrink: 0;
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--amber);
  min-width: 40px;
}
.error-card.err-5 .error-code { color: var(--red); }
.error-name { font-weight: 600; font-size: .9rem; color: var(--text-bright); margin-bottom: 2px; }
.error-desc { font-size: .8rem; color: var(--text-dim); }

/* Best practices */
.best-practices-section { scroll-margin-top: calc(var(--topbar-h) + 16px); }
.bp-list { list-style: none; padding-left: 0; }
.bp-list li {
  position: relative;
  padding-left: 24px;
  margin-bottom: 8px;
  color: var(--text-dim);
  font-size: .88rem;
}
.bp-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--green);
  font-weight: 700;
}

.empty-state {
  text-align: center;
  padding: 48px 20px;
  color: var(--text-mute);
  background: var(--bg-1);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
}
.empty-state p { margin-bottom: 0; font-size: .9rem; }

.error-page {
  max-width: 600px;
  margin: 80px auto;
  text-align: center;
  padding: 40px;
}
.error-page h1 { color: var(--red); margin-bottom: 12px; }
.error-page p { color: var(--text-dim); }

/* --------------------------------------------------------------------------
   11. Sandbox view
   -------------------------------------------------------------------------- */
.sandbox-view { max-width: 1100px; }
.sandbox-header { margin-bottom: var(--gap); }
.sandbox-header h1 { margin-bottom: 6px; }
.sandbox-sub { color: var(--text-dim); font-size: .9rem; }

.sandbox-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: var(--gap);
  align-items: start;
}

.sandbox-picker {
  position: sticky;
  top: calc(var(--topbar-h) + 20px);
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
  max-height: calc(100vh - var(--topbar-h) - 40px);
  overflow-y: auto;
}
.sandbox-picker h3 { font-size: .8rem; text-transform: uppercase; letter-spacing: .5px; color: var(--text-mute); margin-bottom: 10px; }

.picker-group { margin-bottom: 14px; }
.picker-group h4 { font-size: .76rem; color: var(--text-mute); margin-bottom: 6px; text-transform: uppercase; letter-spacing: .3px; }
.picker-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 8px;
  border-radius: 5px;
  margin-bottom: 2px;
  font-size: .8rem;
  color: var(--text-dim);
  transition: background .15s, color .15s;
}
.picker-item:hover { background: var(--bg-hover); color: var(--text); }
.picker-item.active { background: var(--accent-bg); color: var(--accent-hi); }
.picker-item .method-badge { min-width: 42px; font-size: .65rem; padding: 2px 6px; }
.picker-label { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.sandbox-main { min-width: 0; }
.sandbox-endpoint-head { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.sandbox-endpoint-title { margin-bottom: 6px; }
.sandbox-endpoint-desc { color: var(--text-dim); margin-bottom: 16px; font-size: .88rem; }

.sandbox-form {
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: var(--gap);
}
.param-fields { display: flex; flex-direction: column; gap: 14px; margin-bottom: 16px; }
.param-field label { display: block; }
.param-label { display: block; font-size: .82rem; font-weight: 600; color: var(--text); margin-bottom: 4px; }
.param-label em { color: var(--text-mute); font-weight: 400; font-style: normal; }
.req-asterisk { color: var(--red); }
.param-field input[type="text"] {
  width: 100%;
  padding: 8px 12px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  outline: none;
  transition: border-color .15s;
}
.param-field input[type="text"]:focus { border-color: var(--accent-brd); }
.param-field input[type="text"]::placeholder { color: var(--text-mute); }
.param-hint { font-size: .76rem; color: var(--text-mute); margin-top: 4px; margin-bottom: 0; }

.no-params { color: var(--text-mute); font-style: italic; font-size: .85rem; }

.sandbox-actions { display: flex; gap: 8px; flex-wrap: wrap; }

/* Response panel */
.response-panel {
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: var(--gap);
}
.response-panel.empty {
  text-align: center;
  color: var(--text-mute);
  font-style: italic;
  font-size: .85rem;
}
.response-panel h3, .snippet-panel h3 { margin-bottom: 12px; }

.quick-token { margin-bottom: 14px; }
.quick-token label { display: block; font-size: .8rem; color: var(--text-dim); margin-bottom: 6px; font-weight: 600; }
.quick-token pre { border-radius: var(--radius-sm); }

.response-meta { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 14px; }
.status-chip {
  padding: 4px 12px;
  border-radius: 20px;
  font-family: var(--font-mono);
  font-size: .76rem;
  font-weight: 700;
}
.status-ok { background: var(--green-bg); color: var(--green); border: 1px solid rgba(34,197,94,.3); }
.status-err { background: var(--red-bg); color: var(--red); border: 1px solid rgba(239,68,68,.3); }
.latency-chip, .ts-chip {
  padding: 4px 10px;
  border-radius: 5px;
  font-size: .76rem;
  color: var(--text-mute);
  background: var(--bg-2);
  border: 1px solid var(--border);
}
.ts-chip { font-family: var(--font-mono); }

.response-headers { margin-bottom: 14px; }
.response-headers h4, .response-body h4 { font-size: .8rem; text-transform: uppercase; letter-spacing: .5px; color: var(--text-mute); margin-bottom: 8px; }
.response-headers table { width: 100%; border-collapse: collapse; font-size: .8rem; }
.response-headers td { padding: 6px 10px; border-bottom: 1px solid var(--border-soft); }
.response-headers td:first-child { font-family: var(--font-mono); color: var(--accent-hi); width: 40%; }
.response-headers td:last-child { font-family: var(--font-mono); color: var(--text-dim); }

.response-body pre { border-radius: var(--radius-sm); }

/* Snippet panel */
.snippet-panel {
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}
.snippet-panel .code-pane { position: relative; }
.snippet-panel pre { border-radius: 0 0 var(--radius-sm) var(--radius-sm); }

/* --------------------------------------------------------------------------
   12. Articles view
   -------------------------------------------------------------------------- */
.articles-view { max-width: 1000px; }
.articles-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--gap);
}
.articles-header h1 { margin-bottom: 0; }

.metric-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: var(--gap-sm); margin-bottom: var(--gap); }
.metric-card { padding: 18px; text-align: center; }
.metric-value { font-size: 2rem; font-weight: 800; color: var(--accent-hi); }
.metric-label { font-size: .78rem; color: var(--text-mute); text-transform: uppercase; letter-spacing: .5px; margin-top: 4px; }

.filters { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: var(--gap); }
.filter-pill {
  padding: 6px 14px;
  border-radius: 20px;
  font-size: .8rem;
  font-weight: 500;
  color: var(--text-dim);
  background: var(--bg-1);
  border: 1px solid var(--border);
  transition: all .15s;
}
.filter-pill:hover { color: var(--text); border-color: var(--accent-brd); }
.filter-pill.active { background: var(--accent); color: #fff; border-color: var(--accent); }

.article-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: var(--gap); }

.article-card { padding: 18px; display: flex; flex-direction: column; }
.article-card-top { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-bottom: 10px; }
.cat-chip {
  padding: 2px 8px;
  border-radius: 4px;
  font-size: .72rem;
  font-weight: 600;
  background: var(--purple-bg);
  color: var(--purple);
  text-transform: uppercase;
  letter-spacing: .3px;
}
.status-badge { font-size: .72rem; font-weight: 600; padding: 2px 8px; border-radius: 4px; }
.status-pub { background: var(--green-bg); color: var(--green); }
.status-draft { background: var(--amber-bg); color: var(--amber); }
.featured-star { color: var(--amber); font-size: .9rem; }

.article-card-title { font-size: 1.05rem; margin-bottom: 6px; }
.article-card-summary { font-size: .85rem; color: var(--text-dim); flex: 1; margin-bottom: 10px; }
.article-card-tags { display: flex; gap: 5px; flex-wrap: wrap; margin-bottom: 10px; }
.tag-chip {
  font-size: .72rem;
  padding: 2px 8px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text-mute);
}
.article-card-meta {
  display: flex;
  gap: 12px;
  font-size: .76rem;
  color: var(--text-mute);
  margin-bottom: 12px;
}
.article-card-actions { display: flex; gap: 8px; }

/* Article reading view */
.article-reading { max-width: 760px; }
.back-link {
  display: inline-block;
  margin-bottom: 20px;
  font-size: .85rem;
  color: var(--text-dim);
}
.back-link:hover { color: var(--accent-hi); }

.article-body {
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px;
}
.article-meta-line {
  display: flex;
  gap: 12px;
  align-items: center;
  font-size: .8rem;
  color: var(--text-mute);
  margin-bottom: 16px;
}
.article-body h1 { font-size: 2rem; margin-bottom: 10px; }
.article-lede { font-size: 1.1rem; color: var(--text-dim); margin-bottom: 20px; }

.article-author { display: flex; align-items: center; gap: 12px; margin-bottom: 24px; padding-bottom: 20px; border-bottom: 1px solid var(--border-soft); }
.author-avatar {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--purple));
  color: #fff;
  font-weight: 700;
  font-size: .85rem;
  display: flex;
  align-items: center;
  justify-content: center;
}
.author-name { font-weight: 600; font-size: .9rem; color: var(--text-bright); }
.author-role { font-size: .76rem; color: var(--text-mute); }

/* Markdown-rendered content */
.article-content { margin-bottom: 24px; }
.article-content h1, .article-content h2, .article-content h3 { margin-top: 28px; margin-bottom: 12px; }
.article-content h1 { font-size: 1.5rem; }
.article-content h2 { font-size: 1.25rem; }
.article-content h3 { font-size: 1.1rem; }
.article-content p { color: var(--text-dim); line-height: 1.7; margin-bottom: 14px; }
.article-content ul, .article-content ol { color: var(--text-dim); margin-bottom: 14px; }
.article-content li { margin-bottom: 6px; line-height: 1.6; }
.article-content strong { color: var(--text-bright); }
.article-content code {
  background: var(--code-bg);
  border: 1px solid var(--code-brd);
  border-radius: 4px;
  padding: 1px 6px;
  font-size: .82rem;
  color: var(--cyan);
}
.article-content pre {
  margin-bottom: 16px;
  border-radius: var(--radius);
}
.article-content pre code {
  background: none;
  border: none;
  padding: 0;
  color: var(--code-text);
}
.article-content hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 24px 0;
}

.article-tags-footer { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 20px; }
.article-edit-link { padding-top: 16px; border-top: 1px solid var(--border-soft); }

/* Article form */
.article-form-view { max-width: 800px; }
.article-form-view h1 { margin-bottom: 20px; }
.article-form {
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 16px; }
.article-form label { display: block; font-size: .82rem; font-weight: 600; color: var(--text); margin-bottom: 4px; }
.checkbox-label { display: flex; align-items: center; gap: 8px; }
.article-form input[type="text"],
.article-form input[type="number"],
.article-form textarea,
.article-form select {
  width: 100%;
  padding: 8px 12px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  outline: none;
  margin-top: 6px;
  transition: border-color .15s;
}
.article-form input:focus,
.article-form textarea:focus,
.article-form select:focus { border-color: var(--accent-brd); }
.article-form textarea { resize: vertical; font-family: var(--font-mono); font-size: .82rem; }
.content-editor { min-height: 180px; }
.checkbox-label input[type="checkbox"] { width: auto; margin-top: 0; }

.lang-block {
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-sm);
  padding: 16px;
  margin-bottom: 16px;
  background: var(--bg-2);
}
.lang-block-title { font-size: .85rem; margin-bottom: 12px; color: var(--accent-hi); }

.form-actions { display: flex; gap: 10px; margin-top: 20px; }

/* --------------------------------------------------------------------------
   13. VPS / Apache view
   -------------------------------------------------------------------------- */
.vps-view { max-width: 900px; }
.vps-header { margin-bottom: var(--gap); }
.vps-header h1 { margin-bottom: 8px; }
.vps-desc { color: var(--text-dim); margin-bottom: 14px; }
.vps-actions { display: flex; gap: 10px; flex-wrap: wrap; }

.preset-card { padding: 18px; margin-bottom: var(--gap); }
.preset-card h3 { margin-bottom: 6px; }
.preset-desc { color: var(--text-dim); font-size: .88rem; }

.tabs { display: flex; gap: 4px; margin-bottom: 0; flex-wrap: wrap; }
.tab-btn {
  padding: 8px 18px;
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-bottom: none;
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  font-size: .82rem;
  font-weight: 600;
  color: var(--text-dim);
  cursor: pointer;
  transition: all .15s;
  text-decoration: none;
}
.tab-btn:hover { color: var(--text); background: var(--bg-hover); }
.tab-btn.active { color: var(--accent-hi); background: var(--bg-2); border-color: var(--accent-brd); border-bottom: 1px solid var(--bg-2); margin-bottom: -1px; }

/* --------------------------------------------------------------------------
   14. PDF Guide view
   -------------------------------------------------------------------------- */
.guide-view { max-width: 800px; }
.guide-hero {
  background: linear-gradient(135deg, var(--bg-2), var(--bg-3));
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
  text-align: center;
  margin-bottom: var(--gap);
}
.guide-hero h1 { font-size: 2.2rem; margin: 12px 0 8px; }
.guide-sub { color: var(--text-dim); font-size: 1rem; margin-bottom: 12px; }
.guide-meta { font-size: .82rem; color: var(--text-mute); margin-bottom: 20px; }
.guide-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

.guide-toc-preview {
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}
.guide-toc-preview h2 { margin-bottom: 16px; }
.guide-toc-list { list-style: none; padding-left: 0; counter-reset: none; }
.guide-toc-list li {
  display: flex;
  gap: 12px;
  align-items: center;
  padding: 8px 0;
  border-bottom: 1px solid var(--border-soft);
}
.guide-toc-list li:last-child { border-bottom: none; }
.toc-num {
  flex-shrink: 0;
  width: 28px; height: 28px;
  border-radius: 50%;
  background: var(--accent-bg);
  color: var(--accent-hi);
  font-size: .78rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}
.toc-text { color: var(--text-dim); font-size: .88rem; }

/* --------------------------------------------------------------------------
   15. Responsive
   -------------------------------------------------------------------------- */
@media (max-width: 1100px) {
  .docs-layout { grid-template-columns: 1fr; }
  .docs-toc { position: static; margin-bottom: var(--gap); }
  .sandbox-layout { grid-template-columns: 1fr; }
  .sandbox-picker { position: static; max-height: none; }
}

@media (max-width: 860px) {
  .app-shell { flex-direction: column; }
  .sidebar {
    position: relative;
    width: 100%;
    height: auto;
    border-right: none;
    border-bottom: 1px solid var(--border);
  }
  .nav { display: flex; gap: 4px; overflow-x: auto; padding: 8px 12px; }
  .nav-item { white-space: nowrap; margin-bottom: 0; }
  .vps-widget { display: none; }
  .sidebar-footer { display: none; }
  .topbar { padding: 0 16px; }
  .content { padding: 18px; }
  .form-row { grid-template-columns: 1fr; }
  .docs-banner { padding: 22px; }
  .docs-banner h1 { font-size: 1.5rem; }
  .guide-hero { padding: 26px; }
  .guide-hero h1 { font-size: 1.6rem; }
  .article-body { padding: 22px; }
  .article-body h1 { font-size: 1.5rem; }
}

@media (max-width: 520px) {
  h1 { font-size: 1.4rem; }
  h2 { font-size: 1.15rem; }
  .content { padding: 14px; }
  .endpoint-card, .sandbox-form, .response-panel, .snippet-panel, .article-form { padding: 14px; }
  .lang-label { display: none; }
  .article-grid { grid-template-columns: 1fr; }
  .metric-cards { grid-template-columns: 1fr 1fr; }
}

/* --------------------------------------------------------------------------
   16. Print
   -------------------------------------------------------------------------- */
@media print {
  .sidebar, .topbar, .vps-widget, .search-box, .lang-pills, .btn, .copy-btn, .copy-config-btn, .tabs, .code-tabs { display: none !important; }
  .app-shell { display: block; }
  .content { padding: 0; }
  body { background: #fff; color: #000; }
  pre, .json-sample, .config-code-block { background: #f5f5f5; border: 1px solid #ddd; color: #000; }
  pre code, .json-sample code, .config-code-block code { color: #000; }
}

/* --------------------------------------------------------------------------
   17. Scrollbar (WebKit)
   -------------------------------------------------------------------------- */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--bg-0); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-mute); }