/* ================================================================
   WebAI-to-API Admin — Material Design 3 × Gemini Theme
   ================================================================ */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Material+Symbols+Outlined:opsz,wght,FILL,GRAD@20..48,100..700,0..1,-50..200&display=swap');

/* ── Design Tokens ──────────────────────────────────────────────── */
:root {
  /* Surface palette (M3 dark) */
  --md-bg:                       #0C0C10;
  --md-surface:                  #13141B;
  --md-surface-container-lowest: #0C0C10;
  --md-surface-container-low:    #191A23;
  --md-surface-container:        #1E1F29;
  --md-surface-container-high:   #282934;
  --md-surface-container-highest:#31323E;

  /* Text */
  --md-on-surface:         #E4E1EC;
  --md-on-surface-variant: #C9C5D2;
  --md-outline:            #938F9E;
  --md-outline-variant:    #47464F;

  /* Primary — blue (Gemini gradient start) */
  --md-primary:              #A8C7FA;
  --md-on-primary:           #062E6F;
  --md-primary-container:    #0842A0;
  --md-on-primary-container: #D6E3FF;

  /* Secondary — purple */
  --md-secondary:              #CCC2DC;
  --md-secondary-container:    #4A4458;
  --md-on-secondary-container: #E8DEF8;

  /* Tertiary — green (success) */
  --md-tertiary:              #81C995;
  --md-tertiary-container:    #00522A;
  --md-on-tertiary-container: #9DECB0;

  /* Error */
  --md-error:              #FFB4AB;
  --md-error-container:    #8C1D18;
  --md-on-error-container: #FFDAD6;

  /* Warning */
  --md-warning:            #E6C55A;
  --md-warning-bg:         rgba(230, 197, 90, 0.10);

  /* Compatibility aliases for JS color references */
  --success:     var(--md-tertiary);
  --error:       var(--md-error);
  --warning:     var(--md-warning);
  --accent:      var(--md-primary);

  /* Gemini brand gradient */
  --gemini-gradient:      linear-gradient(135deg, #4285F4 0%, #9368F0 55%, #E98FDA 100%);
  --gemini-gradient-wide: linear-gradient(270deg, #4285F4, #9368F0, #E98FDA, #9368F0, #4285F4);

  /* Shape (M3 scale) */
  --shape-xs:   4px;
  --shape-sm:   8px;
  --shape-md:   12px;
  --shape-lg:   16px;
  --shape-xl:   28px;
  --shape-full: 9999px;

  /* Elevation tint via primary at opacity */
  --elev-1: rgba(168, 199, 250, 0.05);
  --elev-2: rgba(168, 199, 250, 0.08);
  --elev-3: rgba(168, 199, 250, 0.11);

  /* Typography */
  --font-sans: 'Plus Jakarta Sans', 'Google Sans', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'Cascadia Code', 'Fira Code', monospace;

  /* Motion */
  --ease-standard: cubic-bezier(0.2, 0, 0, 1);
  --ease-decel:    cubic-bezier(0, 0, 0, 1);
  --ease-accel:    cubic-bezier(0.3, 0, 1, 1);
  --dur-s:  150ms;
  --dur-m:  250ms;
  --dur-l:  400ms;
}

/* ── Reset ──────────────────────────────────────────────────────── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

/* ── Base ───────────────────────────────────────────────────────── */
html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  background: var(--md-bg);
  color: var(--md-on-surface);
  line-height: 1.5;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ── Keyframes ──────────────────────────────────────────────────── */
@keyframes fadeDown {
  from { opacity: 0; transform: translateY(-10px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes geminiShimmer {
  0%   { background-position: -200% center; }
  100% { background-position:  200% center; }
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.4; }
}

/* ── Material Symbols base ──────────────────────────────────────── */
.material-symbols-outlined {
  font-variation-settings: 'FILL' 0, 'wght' 300, 'GRAD' 0, 'opsz' 24;
  user-select: none;
  flex-shrink: 0;
}

/* ── Header ─────────────────────────────────────────────────────── */
.admin-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 24px;
  height: 64px;
  background: var(--md-surface-container-low);
  border-bottom: 1px solid var(--md-outline-variant);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(20px);
  animation: fadeDown var(--dur-l) var(--ease-decel) both;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* Gemini shimmer wordmark */
.header-wordmark {
  font-size: 1.1875rem;
  font-weight: 800;
  background: var(--gemini-gradient-wide);
  background-size: 300% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: geminiShimmer 5s linear infinite;
  letter-spacing: -0.02em;
}

.header-divider {
  width: 1px;
  height: 18px;
  background: var(--md-outline-variant);
}

.header-subtitle {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--md-on-surface-variant);
  letter-spacing: 0.01em;
}

.header-version {
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--md-outline);
  background: var(--md-surface-container-high);
  border: 1px solid var(--md-outline-variant);
  border-radius: 20px;
  padding: 1px 8px;
  letter-spacing: 0.02em;
  font-family: var(--font-mono);
}

/* ── Status badge (M3 chip) ─────────────────────────────────────── */
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 14px;
  border-radius: var(--shape-full);
  font-size: 0.725rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  transition: all var(--dur-m) var(--ease-standard);
  border: 1px solid transparent;
}
.status-badge::before {
  content: '';
  display: block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
}
.status-badge.connected {
  background: rgba(129, 201, 149, 0.10);
  color: var(--md-tertiary);
  border-color: rgba(129, 201, 149, 0.25);
}
.status-badge.connected::before {
  background: var(--md-tertiary);
  animation: pulse-dot 2s ease-in-out infinite;
}
.status-badge.disconnected {
  background: rgba(255, 180, 171, 0.10);
  color: var(--md-error);
  border-color: rgba(255, 180, 171, 0.25);
}
.status-badge.disconnected::before { background: var(--md-error); }
.status-badge.checking {
  background: rgba(230, 197, 90, 0.10);
  color: var(--md-warning);
  border-color: rgba(230, 197, 90, 0.25);
}
.status-badge.checking::before { background: var(--md-warning); }

/* ── Tab Navigation ─────────────────────────────────────────────── */
.tab-nav {
  display: flex;
  align-items: stretch;
  padding: 0 16px;
  background: var(--md-surface-container-low);
  border-bottom: 1px solid var(--md-outline-variant);
  gap: 2px;
  animation: fadeDown var(--dur-l) var(--ease-decel) 40ms both;
}

.tab-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 0 18px;
  height: 52px;
  background: transparent;
  border: none;
  color: var(--md-on-surface-variant);
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  letter-spacing: 0.01em;
  border-radius: var(--shape-sm) var(--shape-sm) 0 0;
  transition: color var(--dur-m) var(--ease-standard),
              background var(--dur-s) var(--ease-standard);
  overflow: hidden;
}
.tab-btn .material-symbols-outlined {
  font-size: 20px;
  font-variation-settings: 'FILL' 0, 'wght' 300, 'GRAD' 0, 'opsz' 20;
  transition: font-variation-settings var(--dur-m) var(--ease-standard),
              color var(--dur-m) var(--ease-standard);
}
/* Active underline — Gemini gradient */
.tab-btn::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 16px;
  right: 16px;
  height: 3px;
  border-radius: 3px 3px 0 0;
  background: var(--gemini-gradient);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform var(--dur-m) var(--ease-standard);
}
.tab-btn:hover {
  color: var(--md-on-surface);
  background: rgba(168, 199, 250, 0.05);
}
.tab-btn.active { color: var(--md-primary); }
.tab-btn.active .material-symbols-outlined {
  font-variation-settings: 'FILL' 1, 'wght' 400, 'GRAD' 0, 'opsz' 20;
}
.tab-btn.active::after { transform: scaleX(1); }
.tab-btn:active { background: rgba(168, 199, 250, 0.08); }

/* ── Main Content ───────────────────────────────────────────────── */
main { padding: 24px; max-width: 1200px; margin: 0 auto; }

.tab-panel { display: none; }
.tab-panel.active {
  display: block;
  animation: fadeUp var(--dur-m) var(--ease-decel) both;
}

/* ── Stats Grid ─────────────────────────────────────────────────── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}

.stat-card {
  background: var(--md-surface-container);
  border-radius: var(--shape-lg);
  padding: 20px;
  position: relative;
  overflow: hidden;
  transition: background var(--dur-s) var(--ease-standard),
              transform var(--dur-m) var(--ease-standard),
              box-shadow var(--dur-m) var(--ease-standard);
}
/* M3 surface tint elevation */
.stat-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--elev-2);
  pointer-events: none;
}
.stat-card:hover {
  background: var(--md-surface-container-high);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(0,0,0,0.25);
}

/* Staggered entrance */
.stat-card:nth-child(1) { animation: fadeUp var(--dur-l) var(--ease-decel) 110ms both; }
.stat-card:nth-child(2) { animation: fadeUp var(--dur-l) var(--ease-decel) 175ms both; }
.stat-card:nth-child(3) { animation: fadeUp var(--dur-l) var(--ease-decel) 240ms both; }
.stat-card:nth-child(4) { animation: fadeUp var(--dur-l) var(--ease-decel) 305ms both; }

.stat-icon-wrap {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: var(--shape-md);
  background: rgba(168, 199, 250, 0.10);
  margin-bottom: 16px;
}
.stat-icon-wrap .material-symbols-outlined {
  font-size: 22px;
  font-variation-settings: 'FILL' 1, 'wght' 400, 'GRAD' 0, 'opsz' 24;
  color: var(--md-primary);
}

.stat-label {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--md-on-surface-variant);
  letter-spacing: 0.07em;
  text-transform: uppercase;
  margin-bottom: 6px;
}

.stat-value {
  font-size: 1.875rem;
  font-weight: 700;
  color: var(--md-on-surface);
  letter-spacing: -0.025em;
  line-height: 1.1;
}

.stat-detail {
  margin-top: 8px;
  font-size: 0.8rem;
  font-weight: 500;
  display: flex;
  gap: 12px;
}
.stat-detail .success { color: var(--md-tertiary); }
.stat-detail .error   { color: var(--md-error); }

/* ── Sections ───────────────────────────────────────────────────── */
.section {
  background: var(--md-surface-container);
  border-radius: var(--shape-lg);
  padding: 24px;
  margin-bottom: 12px;
  position: relative;
  overflow: hidden;
  animation: fadeUp var(--dur-l) var(--ease-decel) 350ms both;
}
.section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--elev-1);
  pointer-events: none;
}

.section h3 {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--md-on-surface-variant);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.section h3 .material-symbols-outlined {
  font-size: 16px;
  font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 20;
  color: var(--md-primary);
  opacity: 0.8;
}

/* ── Tables ─────────────────────────────────────────────────────── */
.data-table {
  width: 100%;
  border-collapse: collapse;
}
.data-table th {
  padding: 8px 12px;
  text-align: left;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--md-on-surface-variant);
  letter-spacing: 0.07em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--md-outline-variant);
}
.data-table td {
  padding: 12px;
  text-align: left;
  font-size: 0.875rem;
  color: var(--md-on-surface);
  border-bottom: 1px solid var(--md-outline-variant);
  transition: background var(--dur-s) var(--ease-standard);
}
.data-table tr:last-child td { border-bottom: none; }
.data-table tbody tr:hover td { background: rgba(168, 199, 250, 0.04); }

/* Endpoint activity table */
#endpoint-table th.col-num {
  text-align: right;
  white-space: nowrap;
}
#endpoint-table td.col-num {
  text-align: right;
  font-family: var(--font-mono);
  font-size: 0.825rem;
  white-space: nowrap;
}
#endpoint-table td.ep-count { color: var(--md-on-surface); font-weight: 600; }
#endpoint-table td.ep-ok    { color: var(--md-tertiary); }
#endpoint-table td.ep-err   { color: var(--md-error); }
#endpoint-table td.ep-path  { font-family: var(--font-mono); font-size: 0.85rem; }
#endpoint-table td.ep-last  {
  font-size: 0.775rem;
  color: var(--md-outline);
  white-space: nowrap;
}

/* % traffic bar */
.pct-bar-wrap {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  justify-content: flex-end;
  width: 100%;
}
.pct-label {
  font-family: var(--font-mono);
  font-size: 0.775rem;
  color: var(--md-on-surface-variant);
  min-width: 38px;
  text-align: right;
}
.pct-bar {
  display: inline-block;
  height: 4px;
  border-radius: 2px;
  background: var(--gemini-gradient);
  min-width: 2px;
  max-width: 80px;
  opacity: 0.7;
  transition: width var(--dur-m) var(--ease-standard);
}

/* ── API Reference ──────────────────────────────────────────────── */
.api-ref-baseurl {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
  padding: 14px 16px;
  background: var(--md-surface-container-high);
  border-radius: var(--shape-md);
}
.api-ref-baseurl .config-label {
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--md-on-surface-variant);
  letter-spacing: 0.07em;
  text-transform: uppercase;
  white-space: nowrap;
  min-width: unset;
}

.api-url {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--md-primary);
  user-select: all;
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.api-ref-baseurl .api-url {
  font-size: 0.9375rem;
  font-weight: 500;
}

.api-ref-table td:last-child { text-align: right; font-family: var(--font-sans); }
.api-ref-table .api-desc {
  color: var(--md-on-surface-variant);
  font-size: 0.8rem;
}
.api-ref-table code {
  color: var(--md-on-surface);
  word-break: break-all;
}

/* Method badges */
.method-badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 9px;
  border-radius: var(--shape-full);
  font-size: 0.675rem;
  font-weight: 700;
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
  white-space: nowrap;
}
.method-post {
  background: rgba(129, 201, 149, 0.14);
  color: var(--md-tertiary);
}
.method-get {
  background: rgba(168, 199, 250, 0.14);
  color: var(--md-primary);
}

/* ── Buttons ────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 22px;
  border: none;
  border-radius: var(--shape-full);
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  letter-spacing: 0.01em;
  position: relative;
  overflow: hidden;
  user-select: none;
  transition: box-shadow var(--dur-s) var(--ease-standard),
              background var(--dur-s) var(--ease-standard),
              transform var(--dur-s) var(--ease-standard);
}
/* State layer */
.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: currentColor;
  opacity: 0;
  transition: opacity var(--dur-s) var(--ease-standard);
}
.btn:hover::after { opacity: 0.08; }
.btn:active::after { opacity: 0.14; }
.btn:active { transform: scale(0.98); }

.btn-primary {
  background: var(--md-primary);
  color: var(--md-on-primary);
}
.btn-primary:hover {
  box-shadow: 0 1px 3px rgba(0,0,0,0.3), 0 4px 12px rgba(66, 133, 244, 0.25);
}

.btn-tonal {
  background: var(--md-secondary-container);
  color: var(--md-on-secondary-container);
}

.btn-warning {
  background: rgba(255, 180, 171, 0.10);
  color: var(--md-error);
  border: 1px solid rgba(255, 180, 171, 0.25);
}
.btn-warning:hover {
  background: rgba(255, 180, 171, 0.16);
}

.btn-small {
  padding: 6px 16px;
  font-size: 0.8rem;
}
.btn:disabled {
  opacity: 0.38;
  cursor: not-allowed;
  pointer-events: none;
}

/* Copy chip */
.btn-copy {
  background: transparent;
  color: var(--md-on-surface-variant);
  border: 1px solid var(--md-outline-variant);
  padding: 4px 12px;
  font-size: 0.75rem;
  font-weight: 500;
  border-radius: var(--shape-full);
  letter-spacing: 0.02em;
  transition: all var(--dur-s) var(--ease-standard);
}
.btn-copy:hover {
  color: var(--md-primary);
  border-color: var(--md-primary);
  background: rgba(168, 199, 250, 0.08);
}
.btn-copy.copied {
  color: var(--md-tertiary);
  border-color: var(--md-tertiary);
  background: rgba(129, 201, 149, 0.08);
}

/* ── Result boxes ───────────────────────────────────────────────── */
.result-box {
  margin-top: 14px;
  padding: 14px 16px;
  border-radius: var(--shape-md);
  font-size: 0.875rem;
  line-height: 1.65;
  border: 1px solid transparent;
}
.result-box.success {
  background: rgba(129, 201, 149, 0.10);
  color: var(--md-tertiary);
  border-color: rgba(129, 201, 149, 0.22);
}
.result-box.error {
  background: rgba(255, 180, 171, 0.08);
  color: var(--md-error);
  border-color: rgba(255, 180, 171, 0.20);
}
.result-box.warning {
  background: var(--md-warning-bg);
  color: var(--md-warning);
  border-color: rgba(230, 197, 90, 0.22);
}
.result-box strong { display: block; margin-bottom: 6px; font-weight: 600; }
.hidden { display: none !important; }

.error-steps {
  margin: 8px 0 4px;
  padding-left: 0;
  list-style: none;
  font-size: 0.825rem;
  line-height: 1.85;
}
.error-steps li {
  color: var(--md-on-surface);
  padding-left: 16px;
  position: relative;
}
.error-steps li::before {
  content: '›';
  position: absolute;
  left: 4px;
  color: var(--md-error);
  font-weight: 700;
}
.error-note {
  margin-top: 10px;
  padding: 8px 12px;
  background: rgba(255,255,255,0.04);
  border-radius: var(--shape-sm);
  font-size: 0.8rem;
  color: var(--md-on-surface-variant);
  font-style: italic;
}

.inline-result {
  font-size: 0.8rem;
  font-weight: 600;
  margin-left: 8px;
}

/* ── Form Elements ──────────────────────────────────────────────── */
.help-text {
  font-size: 0.875rem;
  color: var(--md-on-surface-variant);
  margin-bottom: 16px;
  line-height: 1.65;
}
.help-text a { color: var(--md-primary); text-decoration: none; }
.help-text a:hover { text-decoration: underline; }

.code-input {
  width: 100%;
  background: var(--md-surface-container-high);
  border: 1px solid var(--md-outline-variant);
  border-radius: var(--shape-md);
  color: var(--md-on-surface);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  padding: 14px;
  resize: vertical;
  margin-bottom: 14px;
  outline: none;
  transition: border-color var(--dur-s) var(--ease-standard),
              box-shadow var(--dur-s) var(--ease-standard);
  line-height: 1.6;
}
.code-input:focus {
  border-color: var(--md-primary);
  box-shadow: 0 0 0 3px rgba(168, 199, 250, 0.12);
}
.code-input::placeholder { color: var(--md-outline); }

.text-input {
  background: var(--md-surface-container-high);
  border: 1px solid var(--md-outline-variant);
  border-radius: var(--shape-md);
  color: var(--md-on-surface);
  font-family: var(--font-sans);
  font-size: 0.875rem;
  padding: 10px 14px;
  min-width: 250px;
  outline: none;
  transition: border-color var(--dur-s) var(--ease-standard),
              box-shadow var(--dur-s) var(--ease-standard);
}
.text-input:focus {
  border-color: var(--md-primary);
  box-shadow: 0 0 0 3px rgba(168, 199, 250, 0.12);
}
.text-input::placeholder { color: var(--md-outline); }

.select-input {
  background: var(--md-surface-container-high);
  border: 1px solid var(--md-outline-variant);
  border-radius: var(--shape-md);
  color: var(--md-on-surface);
  font-family: var(--font-sans);
  font-size: 0.875rem;
  padding: 10px 36px 10px 14px;
  cursor: pointer;
  outline: none;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23938F9E' stroke-width='1.5' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  transition: border-color var(--dur-s) var(--ease-standard),
              box-shadow var(--dur-s) var(--ease-standard);
}
.select-input:focus {
  border-color: var(--md-primary);
  box-shadow: 0 0 0 3px rgba(168, 199, 250, 0.12);
}

.config-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}
.config-label {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--md-on-surface-variant);
  min-width: 160px;
}

.form-group { margin-bottom: 14px; }
.form-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--md-on-surface-variant);
  margin-bottom: 6px;
  letter-spacing: 0.01em;
}
.form-group .text-input { width: 100%; }

/* ── Collapsible ────────────────────────────────────────────────── */
details.collapsible summary {
  cursor: pointer;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--md-on-surface-variant);
  list-style: none;
  display: flex;
  align-items: center;
  gap: 8px;
  padding-bottom: 0;
  margin-bottom: 0;
  user-select: none;
  transition: color var(--dur-s) var(--ease-standard);
}
details.collapsible[open] summary { margin-bottom: 16px; }
details.collapsible summary:hover { color: var(--md-on-surface); }
details.collapsible summary .material-symbols-outlined {
  font-size: 18px;
  font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 20;
  color: var(--md-primary);
  opacity: 0.8;
}
details.collapsible summary::after {
  content: 'expand_more';
  font-family: 'Material Symbols Outlined';
  font-size: 20px;
  margin-left: auto;
  color: var(--md-outline);
  font-variation-settings: 'FILL' 0, 'wght' 300, 'GRAD' 0, 'opsz' 24;
  transition: transform var(--dur-m) var(--ease-standard);
}
details.collapsible[open] summary::after { transform: rotate(180deg); }
details.collapsible summary::-webkit-details-marker { display: none; }

/* ── Log Viewer ─────────────────────────────────────────────────── */
.logs-toolbar {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}
/* ── M3 Checkbox ────────────────────────────────────────────────── */
.checkbox-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--md-on-surface);
  cursor: pointer;
  user-select: none;
  padding: 2px 0;
  transition: color var(--dur-s) var(--ease-standard);
}
.checkbox-label input[type="checkbox"] {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  margin: 0;
  border: 2px solid var(--md-on-surface-variant);
  border-radius: 2px;
  background: transparent;
  cursor: pointer;
  flex-shrink: 0;
  vertical-align: middle;
  transition: background var(--dur-s) var(--ease-standard),
              border-color var(--dur-s) var(--ease-standard);
}
.checkbox-label:hover input[type="checkbox"] {
  border-color: var(--md-on-surface);
}
.checkbox-label input[type="checkbox"]:checked {
  background: var(--md-primary);
  border-color: var(--md-primary);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 18 18'%3E%3Cpolyline points='4 9.5 7.5 13 14 5.5' fill='none' stroke='%23062E6F' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-size: 18px 18px;
  background-position: center;
  background-repeat: no-repeat;
}

.log-container {
  background: var(--md-surface-container-lowest);
  border: 1px solid var(--md-outline-variant);
  border-radius: var(--shape-lg);
  height: 520px;
  overflow-y: auto;
  font-family: var(--font-mono);
  font-size: 0.775rem;
  line-height: 1.75;
  padding: 8px 0;
  scrollbar-width: thin;
  scrollbar-color: var(--md-outline-variant) transparent;
}
.log-container::-webkit-scrollbar { width: 6px; }
.log-container::-webkit-scrollbar-track { background: transparent; }
.log-container::-webkit-scrollbar-thumb {
  background: var(--md-outline-variant);
  border-radius: 3px;
}

.log-entry {
  display: block;
  padding: 1px 16px;
  white-space: pre-wrap;
  word-break: break-all;
  transition: background var(--dur-s) var(--ease-standard);
}
.log-entry:hover { background: rgba(168, 199, 250, 0.04); }
.log-entry .ts         { color: var(--md-outline); }
.log-entry .lvl        { font-weight: 600; min-width: 60px; display: inline-block; }
.log-entry .lvl-ERROR   { color: var(--md-error); }
.log-entry .lvl-WARNING { color: var(--md-warning); }
.log-entry .lvl-INFO    { color: var(--md-primary); }
.log-entry .lvl-DEBUG   { color: var(--md-outline); }
.log-entry .logger-name { color: var(--md-outline); }
.log-entry .msg         { color: var(--md-on-surface); }

/* ── Empty state ────────────────────────────────────────────────── */
.empty-state {
  color: var(--md-on-surface-variant);
  text-align: center;
  padding: 32px 24px;
  font-size: 0.875rem;
}

/* ── Code ───────────────────────────────────────────────────────── */
code {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--md-on-surface-variant);
}

/* ── Method badges for DELETE ────────────────────────────────────── */
.method-delete { background: rgba(255, 100, 80, 0.15); color: #FF8A80; }

/* ── cURL Example Tabs ───────────────────────────────────────────── */
.curl-tabs {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.curl-tab-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 12px;
}

.curl-tab-btn {
  padding: 6px 14px;
  border-radius: 20px;
  border: 1px solid var(--md-outline-variant);
  background: transparent;
  color: var(--md-on-surface-variant);
  font-family: inherit;
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
  white-space: nowrap;
}

.curl-tab-btn:hover {
  background: var(--md-surface-container-high);
  color: var(--md-on-surface);
}

.curl-tab-btn.active {
  background: var(--md-primary-container);
  border-color: var(--md-primary);
  color: var(--md-on-primary-container);
}

.curl-panel { display: none; }
.curl-panel.active { display: block; }

.curl-desc {
  margin: 0 0 10px;
}

.curl-code-wrap {
  position: relative;
}

.curl-code {
  background: var(--md-surface-container-lowest);
  border: 1px solid var(--md-outline-variant);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  padding-right: 80px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem;
  line-height: 1.6;
  color: var(--md-on-surface);
  white-space: pre;
  overflow-x: auto;
  margin: 0;
}

.curl-copy-btn {
  position: absolute;
  top: 10px;
  right: 10px;
}

.guide-steps {
  margin: 8px 0 0;
  padding-left: 0;
  list-style: none;
  counter-reset: guide-counter;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.guide-steps li {
  counter-increment: guide-counter;
  display: flex;
  gap: 12px;
  align-items: flex-start;
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--md-on-surface);
}
.guide-steps li::before {
  content: counter(guide-counter);
  min-width: 24px;
  height: 24px;
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 1px;
}
.guide-steps code {
  background: var(--md-surface-container-lowest);
  border: 1px solid var(--md-outline-variant);
  border-radius: 4px;
  padding: 1px 6px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.82em;
}

/* ── Responsive ─────────────────────────────────────────────────── */
@media (max-width: 768px) {
  main { padding: 12px; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
  .admin-header { padding: 0 16px; }
  .tab-btn { padding: 0 14px; gap: 6px; }
  .tab-label { display: none; }
  .section { padding: 16px; }
  .config-row { flex-direction: column; align-items: flex-start; gap: 8px; }
  .text-input { min-width: 100%; }
  .logs-toolbar { flex-direction: column; align-items: stretch; }
  .api-ref-baseurl { flex-wrap: wrap; }
  .curl-code { font-size: 0.72rem; padding-right: 70px; }
  .curl-tab-btn { font-size: 0.75rem; padding: 5px 10px; }
}
@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr; }
}