/* ============================================================
   ToolsDev.it — Custom Styles
   Stack: Bootstrap 5 + CSS Custom Properties
   ============================================================ */

:root {
  --td-bg:          #f6f8fa;
  --td-bg-surface:  #ffffff;
  --td-bg-elevated: #f0f3f7;
  --td-border:      #d0d7de;
  --td-border-light:#e8ecf0;
  --td-text:        #1a2332;
  --td-text-muted:  #57606a;
  --td-text-subtle: #8c959f;
  --td-accent:      #0969da;
  --td-accent-dark: #0550ae;
  --td-accent-glow: rgba(9,105,218,.1);
  --td-green:       #1a7f37;
  --td-orange:      #bc4c00;
  --td-purple:      #6639ba;
  --td-red:         #cf222e;
  --td-yellow:      #9a6700;
  --td-radius:      10px;
  --td-radius-lg:   16px;
  --td-shadow:      0 4px 24px rgba(0,0,0,.08);
  --td-shadow-sm:   0 2px 8px rgba(0,0,0,.06);
  --font-mono:      'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
}

/* ── Base ───────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background-color: var(--td-bg);
  color: var(--td-text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  font-size: 15px;
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a { color: var(--td-accent); text-decoration: none; }
a:hover { color: #79c0ff; text-decoration: underline; }

code, pre, .mono {
  font-family: var(--font-mono);
}

/* ── Navbar ─────────────────────────────────────────────── */
.td-navbar {
  background: rgba(255,255,255,.97);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--td-border);
  padding: .75rem 0;
  z-index: 1000;
  box-shadow: 0 1px 8px rgba(0,0,0,.06);
}

.brand-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--td-accent-dark), var(--td-accent));
  border-radius: 8px;
  font-size: 1rem;
  color: #fff;
  flex-shrink: 0;
  box-shadow: 0 0 12px var(--td-accent-glow);
}
.brand-icon.small { width: 28px; height: 28px; font-size: .8rem; }

.brand-name {
  font-size: 1.25rem;
  font-weight: 700;
  color: #1a2332;
  letter-spacing: -.3px;
}
.brand-accent { color: var(--td-accent); }
.brand-tld    { color: var(--td-text-muted); font-size: .85em; }

.td-navbar .nav-link {
  color: #57606a;
  font-size: .875rem;
  font-weight: 500;
  padding: .4rem .75rem;
  border-radius: 6px;
  transition: color .15s, background .15s;
}
.td-navbar .nav-link:hover,
.td-navbar .nav-link.active {
  color: #1a2332;
  background: var(--td-bg-elevated);
}

.badge-new {
  background: linear-gradient(135deg, #238636, #2ea043);
  color: #fff;
  font-size: .6rem;
  font-weight: 700;
  padding: .2em .5em;
  border-radius: 4px;
  vertical-align: middle;
  letter-spacing: .5px;
}

/* ── Breadcrumb ─────────────────────────────────────────── */
.td-breadcrumb {
  background: var(--td-bg-surface);
  border-bottom: 1px solid var(--td-border-light);
}
.td-breadcrumb .breadcrumb { font-size: .8rem; margin: 0; }
.td-breadcrumb .breadcrumb-item + .breadcrumb-item::before { color: var(--td-text-subtle); }
.td-breadcrumb .breadcrumb-item a { color: var(--td-text-muted); }
.td-breadcrumb .breadcrumb-item.active { color: var(--td-text-subtle); }

/* ── Hero ───────────────────────────────────────────────── */
.td-hero {
  background: linear-gradient(160deg, #eef4ff 0%, #f0f7ff 50%, #f6f8fa 100%);
  padding: 5rem 0 4rem;
  position: relative;
  overflow: hidden;
}
.td-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 50% at 50% 0%, rgba(9,105,218,.07), transparent);
  pointer-events: none;
}

.td-hero-title {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 800;
  letter-spacing: -.5px;
  line-height: 1.15;
  color: var(--td-text);
}
.td-hero-title span { color: var(--td-accent); }

.td-hero-sub {
  font-size: 1.1rem;
  color: var(--td-text-muted);
  max-width: 560px;
  margin: 1rem auto 0;
}

.td-hero-pills {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  justify-content: center;
  margin-top: 1.5rem;
}
.td-pill {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .35rem .85rem;
  border-radius: 999px;
  font-size: .78rem;
  font-weight: 600;
  border: 1px solid var(--td-border);
  background: var(--td-bg-surface);
  color: var(--td-text-muted);
  letter-spacing: .3px;
}
.td-pill i { color: var(--td-green); }

/* ── Section Titles ─────────────────────────────────────── */
.td-section-title {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--td-text);
  letter-spacing: -.3px;
}
.td-section-sub {
  font-size: .9rem;
  color: var(--td-text-muted);
  margin-top: .3rem;
}
.td-section-divider {
  width: 40px;
  height: 3px;
  background: linear-gradient(90deg, var(--td-accent), var(--td-purple));
  border-radius: 2px;
  margin-top: .6rem;
}

/* ── Tool Cards ─────────────────────────────────────────── */
.td-tool-card {
  background: var(--td-bg-surface);
  border: 1px solid var(--td-border);
  border-radius: var(--td-radius-lg);
  padding: 1.5rem;
  height: 100%;
  transition: transform .2s, border-color .2s, box-shadow .2s;
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: inherit;
}
.td-tool-card:hover {
  transform: translateY(-4px);
  border-color: var(--td-accent);
  box-shadow: 0 8px 32px rgba(88,166,255,.12);
  text-decoration: none;
  color: inherit;
}

.td-tool-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--td-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 1rem;
  flex-shrink: 0;
}
.tool-json   .td-tool-icon { background: rgba(88,166,255,.12);  color: var(--td-accent);  }
.tool-base64 .td-tool-icon { background: rgba(63,185,80,.12);   color: var(--td-green);   }
.tool-regex  .td-tool-icon { background: rgba(188,140,255,.12); color: var(--td-purple);  }
.tool-color  .td-tool-icon { background: rgba(240,136,62,.12);  color: var(--td-orange);  }

.td-tool-card-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--td-text);
  margin-bottom: .4rem;
}
.td-tool-card-desc {
  font-size: .85rem;
  color: var(--td-text-muted);
  line-height: 1.5;
  flex: 1;
}
.td-tool-card-cta {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  font-size: .82rem;
  font-weight: 600;
  color: var(--td-accent);
  margin-top: 1rem;
  transition: gap .15s;
}
.td-tool-card:hover .td-tool-card-cta { gap: .6rem; }

/* ── Coming Soon Card ───────────────────────────────────── */
.td-coming-card {
  background: var(--td-bg-surface);
  border: 1px dashed var(--td-border);
  border-radius: var(--td-radius-lg);
  padding: 1.5rem;
  height: 100%;
  opacity: .6;
}
.td-coming-icon {
  width: 44px; height: 44px;
  background: var(--td-bg-elevated);
  border-radius: var(--td-radius);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem;
  color: var(--td-text-subtle);
  margin-bottom: 1rem;
}

/* ── Tool Page Header ───────────────────────────────────── */
.td-tool-header {
  background: linear-gradient(160deg, var(--td-bg-surface) 0%, var(--td-bg) 100%);
  border-bottom: 1px solid var(--td-border);
  padding: 2.5rem 0 2rem;
}
.td-tool-header-icon {
  width: 64px; height: 64px;
  border-radius: var(--td-radius-lg);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.8rem;
  margin-bottom: 1rem;
}

/* ── Tool Container ─────────────────────────────────────── */
.td-tool-panel {
  background: var(--td-bg-surface);
  border: 1px solid var(--td-border);
  border-radius: var(--td-radius-lg);
  overflow: hidden;
}
.td-panel-header {
  background: var(--td-bg-elevated);
  border-bottom: 1px solid var(--td-border);
  padding: .75rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .5rem;
}
.td-panel-label {
  font-size: .75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--td-text-muted);
}
.td-panel-body { padding: 1.25rem; }

/* ── Textarea / Editor ──────────────────────────────────── */
.td-textarea {
  width: 100%;
  background: #fafbfc;
  border: 1px solid var(--td-border);
  border-radius: var(--td-radius);
  color: var(--td-text);
  font-family: var(--font-mono);
  font-size: .85rem;
  line-height: 1.6;
  padding: 1rem;
  resize: vertical;
  min-height: 200px;
  transition: border-color .15s;
  outline: none;
}
.td-textarea:focus { border-color: var(--td-accent); box-shadow: 0 0 0 3px var(--td-accent-glow); }
.td-textarea::placeholder { color: var(--td-text-subtle); }

.td-output {
  width: 100%;
  background: #fafbfc;
  border: 1px solid var(--td-border);
  border-radius: var(--td-radius);
  color: var(--td-text);
  font-family: var(--font-mono);
  font-size: .85rem;
  line-height: 1.6;
  padding: 1rem;
  min-height: 200px;
  white-space: pre-wrap;
  word-break: break-all;
  overflow: auto;
}

/* ── Buttons ────────────────────────────────────────────── */
.td-btn {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .5rem 1.1rem;
  border-radius: 7px;
  font-size: .85rem;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all .15s;
  white-space: nowrap;
}
.td-btn:active { transform: scale(.97); }

.td-btn-primary {
  background: var(--td-accent);
  color: #0d1117;
  border-color: var(--td-accent);
}
.td-btn-primary:hover { background: #79c0ff; border-color: #79c0ff; }

.td-btn-secondary {
  background: var(--td-bg-elevated);
  color: var(--td-text);
  border-color: var(--td-border);
}
.td-btn-secondary:hover { background: #e8ecf0; border-color: #0969da44; }

.td-btn-danger {
  background: transparent;
  color: var(--td-red);
  border-color: var(--td-border);
}
.td-btn-danger:hover { background: rgba(248,81,73,.1); border-color: var(--td-red); }

.td-btn-success {
  background: transparent;
  color: var(--td-green);
  border-color: var(--td-border);
}
.td-btn-success:hover { background: rgba(63,185,80,.1); border-color: var(--td-green); }

/* ── Status Messages ────────────────────────────────────── */
.td-status {
  display: none;
  align-items: center;
  gap: .5rem;
  padding: .6rem 1rem;
  border-radius: 7px;
  font-size: .82rem;
  font-weight: 500;
  margin-top: .75rem;
}
.td-status.show { display: flex; }
.td-status-success { background: rgba(63,185,80,.12); border: 1px solid rgba(63,185,80,.25); color: var(--td-green); }
.td-status-error   { background: rgba(248,81,73,.12); border: 1px solid rgba(248,81,73,.25); color: var(--td-red); }
.td-status-info    { background: rgba(88,166,255,.1); border: 1px solid rgba(88,166,255,.2); color: var(--td-accent); }

/* ── Stats Bar ──────────────────────────────────────────── */
.td-stats-bar {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  margin-top: .5rem;
}
.td-stat { font-size: .75rem; color: var(--td-text-muted); }
.td-stat strong { color: var(--td-text); }

/* ── Copy toast ─────────────────────────────────────────── */
#copy-toast {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 9999;
  background: var(--td-bg-elevated);
  border: 1px solid var(--td-green);
  color: var(--td-green);
  padding: .6rem 1.2rem;
  border-radius: 8px;
  font-size: .85rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: .5rem;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity .2s, transform .2s;
  pointer-events: none;
}
#copy-toast.show { opacity: 1; transform: translateY(0); }

/* ── Features Grid ──────────────────────────────────────── */
.td-feature-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}
.td-feature-icon {
  width: 40px; height: 40px; flex-shrink: 0;
  background: var(--td-bg-elevated);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem;
  color: var(--td-accent);
  border: 1px solid var(--td-border);
}
.td-feature-title { font-size: .9rem; font-weight: 600; color: var(--td-text); }
.td-feature-desc  { font-size: .82rem; color: var(--td-text-muted); margin-top: .2rem; }

/* ── SEO Content Block ──────────────────────────────────── */
.td-seo-block {
  background: var(--td-bg-surface);
  border: 1px solid var(--td-border);
  border-radius: var(--td-radius-lg);
  padding: 2rem;
}
.td-seo-block h2 { font-size: 1.15rem; font-weight: 700; color: var(--td-text); margin-bottom: .75rem; }
.td-seo-block h3 { font-size: 1rem; font-weight: 600; color: var(--td-text-muted); margin-top: 1.5rem; margin-bottom: .5rem; }
.td-seo-block p  { font-size: .875rem; color: var(--td-text-muted); line-height: 1.7; }

/* ── Tabs ───────────────────────────────────────────────── */
.td-tabs { border-bottom: 1px solid var(--td-border); margin-bottom: 1.5rem; }
.td-tab-btn {
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--td-text-muted);
  font-size: .875rem;
  font-weight: 600;
  padding: .6rem 1rem;
  cursor: pointer;
  margin-bottom: -1px;
  transition: color .15s, border-color .15s;
}
.td-tab-btn:hover { color: var(--td-text); }
.td-tab-btn.active { color: var(--td-accent); border-bottom-color: var(--td-accent); }

/* ── Footer ─────────────────────────────────────────────── */
.td-footer {
  background: var(--td-bg-surface);
  border-top: 1px solid var(--td-border);
  margin-top: auto;
}
.td-footer-heading {
  font-size: .75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--td-text-muted);
  margin-bottom: .75rem;
}
.td-footer-desc { font-size: .85rem; color: var(--td-text-muted); line-height: 1.6; }
.td-footer-links li { margin-bottom: .35rem; }
.td-footer-links a { font-size: .85rem; color: var(--td-text-muted); transition: color .15s; }
.td-footer-links a:hover { color: var(--td-text); text-decoration: none; }
.td-footer-features li { font-size: .85rem; color: var(--td-text-muted); margin-bottom: .4rem; }
.td-footer-divider { border-color: var(--td-border); margin: 0; opacity: 1; }
.td-footer-copy { color: var(--td-text-subtle); font-size: .8rem; }
.td-badge-pill {
  font-size: .7rem;
  font-weight: 600;
  padding: .25rem .65rem;
  border-radius: 999px;
  border: 1px solid var(--td-border);
  color: var(--td-text-muted);
  background: var(--td-bg-elevated);
}

/* ── Color mode toggle ──────────────────────────────────── */
.char-count { font-size: .75rem; color: var(--td-text-subtle); }

/* ── Utilities ──────────────────────────────────────────── */
.text-accent { color: var(--td-accent) !important; }
.text-muted-td { color: var(--td-text-muted) !important; }
.bg-surface { background: var(--td-bg-surface) !important; }
.border-td  { border-color: var(--td-border) !important; }

/* ── Responsive ─────────────────────────────────────────── */
@media (max-width: 768px) {
  .td-hero { padding: 3rem 0 2.5rem; }
  .td-tool-header { padding: 1.75rem 0 1.5rem; }
  .td-stats-bar { gap: 1rem; }
}

/* ── Scrollbar ──────────────────────────────────────────── */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: #f6f8fa; }
::-webkit-scrollbar-thumb { background: #c8d0d8; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #a0a8b0; }

/* ── Animations ─────────────────────────────────────────── */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}
.fade-in-up { animation: fadeInUp .4s ease both; }
.delay-1 { animation-delay: .1s; }
.delay-2 { animation-delay: .2s; }
.delay-3 { animation-delay: .3s; }

/* ── Additional Tool Colors ─────────────────────────────── */
.tool-password .td-tool-icon { background: rgba(188,76,0,.1);   color: var(--td-orange); }
.tool-regex    .td-tool-icon { background: rgba(102,57,186,.1); color: var(--td-purple); }
.tool-color    .td-tool-icon { background: rgba(218,9,105,.1);  color: #d40069; }
.tool-date     .td-tool-icon { background: rgba(0,135,177,.1);  color: #0087b1; }
.tool-css      .td-tool-icon { background: rgba(26,127,55,.1);  color: var(--td-green); }
.tool-meta     .td-tool-icon { background: rgba(154,103,0,.1);  color: var(--td-yellow); }

/* ── Color Picker Swatch ─────────────────────────────────── */
.color-swatch {
  width: 100%; height: 120px;
  border-radius: var(--td-radius);
  border: 1px solid var(--td-border);
  transition: background .15s;
}
.color-chip {
  width: 36px; height: 36px;
  border-radius: 6px;
  border: 1px solid var(--td-border);
  cursor: pointer;
  display: inline-block;
  transition: transform .15s;
}
.color-chip:hover { transform: scale(1.1); }

/* ── Password strength bar ───────────────────────────────── */
.strength-bar {
  height: 6px; border-radius: 3px;
  background: var(--td-border);
  overflow: hidden;
  margin-top: .5rem;
}
.strength-fill {
  height: 100%; border-radius: 3px;
  transition: width .3s, background .3s;
}

/* ── Regex matches ───────────────────────────────────────── */
.regex-match { background: rgba(9,105,218,.18); border-radius: 3px; }
.regex-group { background: rgba(102,57,186,.15); border-radius: 3px; }
.match-badge {
  display: inline-block; padding: .15rem .5rem;
  border-radius: 999px; font-size: .72rem; font-weight: 700;
  background: var(--td-accent-glow); color: var(--td-accent);
  border: 1px solid rgba(9,105,218,.2);
}

/* ── Meta preview ────────────────────────────────────────── */
.td-google-preview {
  background: #fff; border: 1px solid var(--td-border);
  border-radius: var(--td-radius); padding: 1rem 1.25rem;
  font-family: Arial, sans-serif;
}
.td-google-url   { font-size: .8rem; color: #006621; margin-bottom: .2rem; }
.td-google-title { font-size: 1.05rem; color: #1a0dab; font-weight: 400; cursor: pointer; }
.td-google-title:hover { text-decoration: underline; }
.td-google-desc  { font-size: .85rem; color: #545454; margin-top: .2rem; line-height: 1.4; }

.td-og-preview {
  background: #f0f2f5; border-radius: var(--td-radius);
  overflow: hidden; max-width: 500px;
  border: 1px solid var(--td-border);
}
.td-og-img { width: 100%; height: 110px; background: var(--td-border); object-fit: cover; }
.td-og-body { padding: .75rem 1rem; background: #e2e8f0; }
.td-og-domain { font-size: .72rem; color: #65676b; text-transform: uppercase; }
.td-og-title  { font-size: .92rem; font-weight: 700; color: #1c1e21; margin: .15rem 0; }
.td-og-desc   { font-size: .8rem; color: #606770; }

/* ── String Converter ───────────────────────────────────── */
.tool-string .td-tool-icon { background: rgba(0,135,177,.1); color: #0087b1; }
.tool-html   .td-tool-icon { background: rgba(188,76,0,.1);  color: var(--td-orange); }

.string-op-btn {
  display: inline-flex; align-items: center; gap: .4rem;
  padding: .45rem .9rem; border-radius: 7px; font-size: .82rem; font-weight: 600;
  border: 1px solid var(--td-border); background: var(--td-bg-elevated);
  color: var(--td-text-muted); cursor: pointer; transition: all .15s;
  white-space: nowrap;
}
.string-op-btn:hover { border-color: var(--td-accent); color: var(--td-accent); background: var(--td-accent-glow); }
.string-op-btn.active { border-color: var(--td-accent); color: var(--td-accent); background: var(--td-accent-glow); }

/* ── HTML Editor ────────────────────────────────────────── */
.td-html-editor-wrap {
  border: 1px solid var(--td-border); border-radius: var(--td-radius);
  background: #fff; min-height: 220px; overflow: hidden;
}
.td-html-toolbar {
  display: flex; flex-wrap: wrap; gap: .25rem; padding: .6rem .75rem;
  background: var(--td-bg-elevated); border-bottom: 1px solid var(--td-border);
}
.td-html-btn {
  width: 30px; height: 28px; border-radius: 5px; border: 1px solid transparent;
  background: none; cursor: pointer; font-size: .85rem; font-weight: 700;
  color: var(--td-text-muted); display: flex; align-items: center; justify-content: center;
  transition: all .12s;
}
.td-html-btn:hover { background: var(--td-bg); border-color: var(--td-border); color: var(--td-text); }
.td-html-btn.active { background: var(--td-accent-glow); border-color: var(--td-accent); color: var(--td-accent); }
.td-html-sep { width: 1px; height: 20px; background: var(--td-border); margin: 4px 2px; align-self: center; }
.td-editable {
  padding: 1rem; min-height: 200px; outline: none;
  font-size: .9rem; line-height: 1.7; color: var(--td-text);
}
.td-editable:focus { box-shadow: none; }

.diff-added   { background: rgba(26,127,55,.12); color: var(--td-green); }
.diff-removed { background: rgba(207,34,46,.12); color: var(--td-red); text-decoration: line-through; }

/* ── String & HTML Tool Colors ──────────────────────────── */
.tool-string .td-tool-icon { background: rgba(0,135,177,.1);  color: #0087b1; }
.tool-html   .td-tool-icon { background: rgba(180,30,0,.1);   color: #b41e00; }

/* ── String converter buttons ───────────────────────────── */
.conv-btn {
  display: inline-flex; align-items: center; gap: .35rem;
  padding: .4rem .9rem; border-radius: 7px;
  font-size: .82rem; font-weight: 600;
  border: 1px solid var(--td-border);
  background: var(--td-bg-surface);
  color: var(--td-text-muted);
  cursor: pointer; transition: all .15s;
  white-space: nowrap;
}
.conv-btn:hover, .conv-btn.active {
  background: var(--td-accent-glow);
  border-color: var(--td-accent);
  color: var(--td-accent);
}

/* ── HTML Editor ─────────────────────────────────────────── */
.td-editor-wrap {
  position: relative;
  font-family: var(--font-mono);
  font-size: .85rem;
  line-height: 1.7;
}
.td-editor-wrap textarea {
  width: 100%; min-height: 280px;
  background: #fafbfc; border: 1px solid var(--td-border);
  border-radius: var(--td-radius); color: var(--td-text);
  padding: 1rem; resize: vertical;
  font-family: var(--font-mono); font-size: .85rem; line-height: 1.7;
  outline: none; transition: border-color .15s;
}
.td-editor-wrap textarea:focus { border-color: var(--td-accent); box-shadow: 0 0 0 3px var(--td-accent-glow); }

.html-preview {
  background: #fff; border: 1px solid var(--td-border);
  border-radius: var(--td-radius); padding: 1.25rem;
  min-height: 280px; font-size: .9rem; line-height: 1.7;
  color: #1a2332; overflow: auto;
}

/* Syntax highlight tokens */
.hl-tag    { color: #b41e00; font-weight: 500; }
.hl-attr   { color: #0550ae; }
.hl-val    { color: #1a7f37; }
.hl-cmt    { color: #8c959f; font-style: italic; }
.hl-entity { color: #9a6700; }

/* ── Language Switcher ────────────────────────────────── */
.td-navbar .dropdown-menu {
  background: var(--td-bg-surface);
  border: 1px solid var(--td-border);
  box-shadow: 0 8px 24px rgba(0,0,0,.12);
  border-radius: var(--td-radius);
  padding: .35rem;
}
.td-navbar .dropdown-item {
  color: var(--td-text);
  border-radius: calc(var(--td-radius) - 2px);
  font-size: .85rem;
  padding: .45rem .75rem;
  transition: background .15s;
}
.td-navbar .dropdown-item:hover { background: var(--td-bg-elevated); color: var(--td-text); }
.td-navbar .dropdown-item.active { background: rgba(9,105,218,.1); color: var(--td-accent); font-weight: 600; }