/* ============================================
   CSS Custom Properties — Light Theme (default)
   ============================================ */
:root {
  --color-bg: #f0f2f5;
  --color-text: #1a1d23;
  --color-text-muted: #4b5563;
  --color-primary: #4f46e5;
  --color-primary-hover: #4338ca;
  --color-surface: #fff;
  --color-border: #e5e7eb;
  --color-shadow: rgba(0, 0, 0, 0.07);
  --color-shadow-lg: rgba(0, 0, 0, 0.14);
  --color-danger: #dc2626;
  --color-ok: #16a34a;
  --color-ok-bg: rgba(22, 163, 74, 0.1);
  --color-error-bg: rgba(220, 38, 38, 0.08);
  --color-secondary: #7c3aed;
  --color-secondary-hover: #6d28d9;
  --color-warn: #f59e0b;
  --color-entropy-weak:   #ef4444;
  --color-entropy-fair:   #f97316;
  --color-entropy-good:   #eab308;
  --color-entropy-strong: #22c55e;
  --font-main: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'SF Mono', 'Fira Code', Consolas, monospace;
  --max-width: 1200px;
  --nav-height: 3.5rem;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --transition: 180ms ease;
  --transition-slow: 320ms ease;
}

/* Dark Theme */
[data-theme="dark"] {
  --color-bg: #0f1117;
  --color-text: #e2e8f0;
  --color-text-muted: #94a3b8;
  --color-primary: #6366f1;
  --color-primary-hover: #818cf8;
  --color-surface: #1e2130;
  --color-border: #2d3448;
  --color-shadow: rgba(0, 0, 0, 0.3);
  --color-shadow-lg: rgba(0, 0, 0, 0.5);
  --color-danger: #f87171;
  --color-ok: #4ade80;
  --color-ok-bg: rgba(74, 222, 128, 0.1);
  --color-error-bg: rgba(248, 113, 113, 0.08);
  --color-secondary: #a78bfa;
  --color-secondary-hover: #c4b5fd;
  --color-warn: #fbbf24;
  --color-entropy-weak:   #f87171;
  --color-entropy-fair:   #fb923c;
  --color-entropy-good:   #facc15;
  --color-entropy-strong: #4ade80;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-main);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background var(--transition-slow), color var(--transition-slow);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

/* ============================================
   Navigation
   ============================================ */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-height);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  box-shadow: 0 1px 4px var(--color-shadow);
  transition: background var(--transition-slow), border-color var(--transition-slow);
}

.nav__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.25rem;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.nav__brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--color-text);
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: -0.01em;
  transition: opacity var(--transition);
}
.nav__brand:hover { opacity: 0.7; }
.nav__brand:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

.nav__logo {
  font-size: 1.25rem;
  color: var(--color-primary);
}

.nav__actions {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav__menu {
  display: flex;
  list-style: none;
  gap: 0.25rem;
  margin-right: 0.5rem;
}

.nav__link {
  display: block;
  padding: 0.375rem 0.75rem;
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
}
.nav__link:hover {
  color: var(--color-text);
  background: var(--color-border);
}
.nav__link:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.nav__search-item {
  display: flex;
  align-items: center;
}

.nav__search {
  width: 9rem;
  padding: 0.25rem 0.5rem;
  font-size: 0.8125rem;
  font-family: var(--font-main);
  color: var(--color-text);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition), width var(--transition);
}
.nav__search::placeholder { color: var(--color-text-muted); }
.nav__search:focus {
  border-color: var(--color-primary);
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  width: 12rem;
}

.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  color: var(--color-text);
  cursor: pointer;
  font-size: 1rem;
  transition: background var(--transition), border-color var(--transition), transform var(--transition);
}
.theme-toggle:hover { background: var(--color-border); transform: rotate(20deg); }
.theme-toggle:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; }

.nav__hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 2.25rem;
  height: 2.25rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: transparent;
  cursor: pointer;
  padding: 0.4rem;
  transition: background var(--transition);
}
.nav__hamburger:hover { background: var(--color-border); }
.nav__hamburger:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; }

.hamburger__bar {
  display: block;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

.nav__hamburger[aria-expanded="true"] .hamburger__bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav__hamburger[aria-expanded="true"] .hamburger__bar:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.nav__hamburger[aria-expanded="true"] .hamburger__bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (max-width: 640px) {
  .nav__hamburger { display: flex; }

  .nav__menu {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    flex-direction: column;
    gap: 0;
    padding: 0.5rem;
    transform: translateY(-110%);
    transition: transform var(--transition-slow), box-shadow var(--transition-slow);
    box-shadow: none;
  }

  .nav__menu.is-open {
    transform: translateY(0);
    box-shadow: 0 6px 16px var(--color-shadow-lg);
  }

  .nav__link { padding: 0.75rem 1rem; font-size: 1rem; }

  .nav__search-item { padding: 0.5rem 0; }
  .nav__search { width: 100%; font-size: 1rem; padding: 0.5rem 0.75rem; }
  .nav__search:focus { width: 100%; }
}

/* ============================================
   Hero
   ============================================ */
.hero {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: 4rem 1.25rem 3.5rem;
  text-align: center;
  transition: background var(--transition-slow);
}

.hero__inner {
  max-width: 640px;
  margin: 0 auto;
}

.hero__title {
  font-size: clamp(1.75rem, 5vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 1rem;
  color: var(--color-text);
}

.hero__title span {
  color: var(--color-primary);
}

.hero__sub {
  font-size: clamp(0.95rem, 2vw, 1.1rem);
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: 2rem;
}

.hero__cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 2rem;
  background: var(--color-primary);
  color: #fff;
  text-decoration: none;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 1rem;
  transition: background var(--transition), transform var(--transition);
}
.hero__cta:hover { background: var(--color-primary-hover); transform: translateY(-1px); }
.hero__cta:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 3px; }

/* ============================================
   Main / Tabs
   ============================================ */
main {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.tabs-wrapper {
  position: sticky;
  top: var(--nav-height);
  z-index: 90;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  box-shadow: 0 1px 3px var(--color-shadow);
  transition: background var(--transition-slow);
  overflow-x: auto;
  scrollbar-width: none;
}
.tabs-wrapper::-webkit-scrollbar { display: none; }

.tabs {
  display: flex;
  gap: 0;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1rem;
}

.tab {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.875rem 1.25rem;
  border: none;
  border-bottom: 2px solid transparent;
  background: transparent;
  color: var(--color-text-muted);
  font-family: var(--font-main);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
  transition: color var(--transition), border-color var(--transition), background var(--transition);
  flex-shrink: 0;
}
.tab:hover { color: var(--color-text); background: var(--color-bg); }
.tab--active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
  font-weight: 600;
}
.tab:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: -2px;
}

.tab__icon {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  opacity: 0.7;
}

.tab__icon--color {
  display: inline-block;
  width: 0.875rem;
  height: 0.875rem;
  border-radius: 50%;
  background: var(--color-primary);
  border: 1px solid var(--color-border);
  vertical-align: middle;
  transition: background var(--transition);
}

/* ============================================
   Panels
   ============================================ */
.panels-wrapper {
  flex: 1;
  max-width: var(--max-width);
  margin: 0 auto;
  width: 100%;
  padding: 1.5rem 1.25rem 3rem;
}

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

/* ============================================
   Tool layout
   ============================================ */
.tool__header {
  margin-bottom: 1.25rem;
}

.tool__title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 0.3rem;
}

.tool__desc {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.tool__body {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.tool__body--split {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .tool__body--split {
    grid-template-columns: 1fr 1fr;
  }
}

.tool__pane {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.tool__body--split--top,
.tool__pane--top {
  margin-top: 1rem;
}

/* ============================================
   Pane header
   ============================================ */
.pane__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  min-height: 1.75rem;
}

.pane__label {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--color-text-muted);
}

.pane__actions {
  display: flex;
  gap: 0.375rem;
  flex-wrap: wrap;
}

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 1rem;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  background: var(--color-primary);
  color: #fff;
  font-family: var(--font-main);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), transform var(--transition);
  white-space: nowrap;
}
.btn:hover { background: var(--color-primary-hover); }
.btn:active { transform: scale(0.96); }
.btn:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; }

.btn--sm { padding: 0.3rem 0.65rem; font-size: 0.8rem; }

.btn--secondary {
  background: var(--color-secondary);
  color: #fff;
}
.btn--secondary:hover { background: var(--color-secondary-hover); }

.btn--ghost {
  background: transparent;
  border-color: var(--color-border);
  color: var(--color-text-muted);
}
.btn--ghost:hover { background: var(--color-border); color: var(--color-text); }

.btn--success {
  background: var(--color-ok) !important;
  color: #fff !important;
}

.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  pointer-events: none;
}

/* ============================================
   Code areas (textareas)
   ============================================ */
.code-area {
  width: 100%;
  min-height: 220px;
  padding: 0.875rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.6;
  resize: vertical;
  transition: border-color var(--transition), background var(--transition-slow);
}
.code-area:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}
.code-area::placeholder { color: var(--color-text-muted); opacity: 0.6; }
.code-area[readonly] { color: var(--color-text-muted); cursor: default; }
.code-area--single { min-height: unset; height: 2.8rem; resize: none; padding-top: 0.6rem; padding-bottom: 0.6rem; }

/* ============================================
   Code preview (pre)
   ============================================ */
.code-preview {
  width: 100%;
  min-height: 220px;
  max-height: 480px;
  overflow: auto;
  padding: 0.875rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.6;
  white-space: pre;
  transition: border-color var(--transition), background var(--transition-slow);
}
.code-preview:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.code-placeholder { color: var(--color-text-muted); opacity: 0.5; }

/* JSON syntax highlight colors */
.json-key  { color: #7c3aed; }
.json-str  { color: #15803d; }
.json-num  { color: #b45309; }
.json-bool { color: #0e7490; }
.json-null { color: #52525b; }
.json-error { color: var(--color-danger); }

[data-theme="dark"] .json-key  { color: #c4b5fd; }
[data-theme="dark"] .json-str  { color: #6ee7b7; }
[data-theme="dark"] .json-num  { color: #fbbf24; }
[data-theme="dark"] .json-bool { color: #67e8f9; }
[data-theme="dark"] .json-null { color: #9ca3af; }

/* ============================================
   Status bar
   ============================================ */
.status-bar {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-muted);
  min-height: 1.2em;
  padding: 0.1rem 0;
}
.status-bar--ok    { color: var(--color-ok); }
.status-bar--error { color: var(--color-danger); }

/* ============================================
   Regex tool
   ============================================ */
.regex-controls {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 0.75rem;
}

.regex-pattern-row {
  display: flex;
  align-items: center;
  gap: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-bg);
  transition: border-color var(--transition);
}
.regex-pattern-row:focus-within {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.regex-delim {
  padding: 0.625rem;
  font-family: var(--font-mono);
  font-size: 1.1rem;
  color: var(--color-text-muted);
  user-select: none;
  line-height: 1;
}

.regex-input {
  flex: 1;
  border: none;
  background: transparent;
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  padding: 0.625rem 0;
  outline: none;
}
.regex-input::placeholder { color: var(--color-text-muted); opacity: 0.5; }

.regex-flags-input {
  width: 5rem;
  border: none;
  border-left: 1px solid var(--color-border);
  background: transparent;
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  padding: 0.625rem;
  outline: none;
}

.match-badge {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--color-primary);
  background: rgba(99, 102, 241, 0.1);
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
}

.has-matches { border-color: var(--color-primary) !important; }
.no-matches  { border-color: var(--color-danger) !important; }

.match-list {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg);
  min-height: 180px;
  max-height: 320px;
  overflow-y: auto;
  padding: 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  transition: background var(--transition-slow);
}

.match-item {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  padding: 0.5rem 0.625rem;
  background: var(--color-surface);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  flex-wrap: wrap;
}

.match-idx {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--color-text-muted);
  flex-shrink: 0;
}

.match-val {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--color-primary);
  background: rgba(99, 102, 241, 0.08);
  padding: 0.1rem 0.4rem;
  border-radius: var(--radius-sm);
  word-break: break-all;
}

.match-pos {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--color-text-muted);
  margin-left: auto;
}

.match-group {
  width: 100%;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-muted);
  padding-left: 2.5rem;
}

.match-empty {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  text-align: center;
  padding: 2rem 1rem;
  opacity: 0.7;
}

.match-empty--error { color: var(--color-danger); opacity: 1; }

.tool__pane--full { grid-column: 1 / -1; }

.highlight-output {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.7;
  white-space: pre-wrap;
  word-break: break-all;
  padding: 0.75rem;
  min-height: 3rem;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  background: var(--color-surface);
  color: var(--color-text);
}

/* Cycling highlight colors — 4 hues, work on light + dark */
.highlight-output mark {
  color: inherit;
  border-radius: 2px;
  padding: 0 1px;
}
.hl-0 { background: rgba(250, 204,  21, 0.45); } /* yellow  */
.hl-1 { background: rgba( 52, 211, 153, 0.45); } /* emerald */
.hl-2 { background: rgba(167, 139, 250, 0.45); } /* violet  */
.hl-3 { background: rgba(251, 146,  60, 0.45); } /* orange  */

.regex-replace-template {
  width: 100%;
  box-sizing: border-box;
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

/* ============================================
   Color tool
   ============================================ */
.color-tool {
  gap: 1.5rem;
}

.color-main {
  display: flex;
  gap: 1.5rem;
  align-items: flex-start;
  flex-wrap: wrap;
}

.color-picker-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
}

.color-picker {
  opacity: 0;
  position: absolute;
  width: 1px;
  height: 1px;
  pointer-events: none;
}

.color-swatch {
  width: 100px;
  height: 100px;
  border-radius: var(--radius-md);
  border: 2px solid var(--color-border);
  background: #4f46e5;
  transition: background var(--transition), box-shadow var(--transition);
  cursor: pointer;
}

.color-picker-wrap:hover .color-swatch,
.color-picker-wrap:focus-within .color-swatch {
  box-shadow: 0 4px 16px var(--color-shadow-lg);
}

.color-swatch-label {
  font-size: 0.72rem;
  color: var(--color-text-muted);
  user-select: none;
}

.color-values {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
  min-width: 220px;
}

.color-value-row {
  display: flex;
  align-items: center;
  gap: 0.625rem;
}

.color-format-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--color-text-muted);
  width: 2.5rem;
  flex-shrink: 0;
}

.color-value-input {
  flex: 1;
  padding: 0.4rem 0.625rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  transition: border-color var(--transition), background var(--transition-slow);
}
.color-value-input:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}
.color-value-input.is-invalid {
  border-color: #ef4444;
  animation: color-input-shake 0.3s ease;
}
@keyframes color-input-shake {
  0%, 100% { transform: translateX(0); }
  20%       { transform: translateX(-4px); }
  40%       { transform: translateX(4px); }
  60%       { transform: translateX(-3px); }
  80%       { transform: translateX(3px); }
}

.color-history-section {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.color-history {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  min-height: 3rem;
  padding: 0.5rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg);
  transition: background var(--transition-slow);
}

.color-history-swatch {
  width: 2rem;
  height: 2rem;
  border-radius: var(--radius-sm);
  border: 2px solid var(--color-border);
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition);
  flex-shrink: 0;
}
.color-history-swatch:hover {
  transform: scale(1.2);
  box-shadow: 0 2px 8px var(--color-shadow-lg);
}
.color-history-swatch:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* ============================================
   Contrast Checker
   ============================================ */
.contrast-section {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding-top: 1rem;
  border-top: 1px solid var(--color-border);
}

.contrast-pickers {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.contrast-picker-group {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.375rem;
}

.contrast-fg-indicator {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.375rem;
}

.contrast-fg-swatch {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-sm);
  border: 2px dashed var(--color-border);
  flex-shrink: 0;
}

.contrast-fg-hex {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--color-text-muted);
  text-align: center;
  background: none;
  border: none;
  padding: 0;
  user-select: text;
}

.contrast-fg-hint {
  font-size: 0.65rem;
  color: var(--color-text-muted);
  opacity: 0.7;
  text-align: center;
  max-width: 7rem;
  line-height: 1.3;
}

.contrast-picker-label {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* stylelint-disable-next-line no-descending-specificity -- different component (.contrast-picker-wrap vs .color-picker-wrap); shares .color-swatch child but no cascade competition */
.contrast-picker-wrap .color-swatch {
  width: 64px;
  height: 64px;
}

.contrast-hex-input {
  width: 7rem;
  padding: 0.3rem 0.5rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-align: center;
  transition: border-color var(--transition), background var(--transition-slow);
}
.contrast-hex-input:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}
.contrast-hex-input.is-invalid {
  border-color: #ef4444;
  animation: color-input-shake 0.3s ease;
}

.contrast-preview-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.375rem;
  flex: 1;
  min-width: 120px;
}

.contrast-preview {
  width: 100%;
  min-height: 64px;
  border-radius: var(--radius-md);
  border: 2px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition), color var(--transition);
}

.contrast-preview-text {
  font-size: 2rem;
  font-weight: 700;
  line-height: 1;
  user-select: none;
}

.contrast-ratio {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-text);
  transition: color var(--transition);
}

.contrast-badges {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.5rem;
}

@media (max-width: 480px) {
  .contrast-badges {
    grid-template-columns: repeat(2, 1fr);
  }
}

.contrast-badge {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.125rem;
  padding: 0.5rem 0.375rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  transition: border-color var(--transition), background var(--transition);
}

.contrast-badge__level {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-text);
}

.contrast-badge__size {
  font-size: 0.68rem;
  color: var(--color-text-muted);
}

.contrast-badge__result {
  font-size: 0.72rem;
  font-weight: 700;
  margin-top: 0.125rem;
  color: var(--color-text-muted);
}

.contrast-badge--pass {
  border-color: #22c55e;
  background: color-mix(in srgb, #22c55e 10%, var(--color-surface));
}
.contrast-badge--pass .contrast-badge__result {
  color: #16a34a;
}

.contrast-badge--fail {
  border-color: #ef4444;
  background: color-mix(in srgb, #ef4444 10%, var(--color-surface));
}
.contrast-badge--fail .contrast-badge__result {
  color: #dc2626;
}

/* ============================================
   Notes tool
   ============================================ */
.notes__form {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.notes__input {
  flex: 1;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-main);
  font-size: 0.9rem;
  transition: border-color var(--transition), background var(--transition-slow);
}
.notes__input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}
.notes__input::placeholder { color: var(--color-text-muted); }

.notes-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.5rem;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.notes-meta__actions {
  display: flex;
  gap: 0.375rem;
  flex-shrink: 0;
}

.notes__count {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.notes__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  max-height: 400px;
  overflow-y: auto;
  padding-right: 0.25rem;
}
.notes__list::-webkit-scrollbar { width: 4px; }
.notes__list::-webkit-scrollbar-track { background: transparent; }
.notes__list::-webkit-scrollbar-thumb { background: var(--color-border); border-radius: 2px; }

.note-item {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  padding: 0.625rem 0.75rem;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  animation: noteIn 200ms ease forwards;
  transition: background var(--transition-slow), border-color var(--transition-slow);
}

@keyframes noteIn {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: translateY(0); }
}

.note-item__text {
  flex: 1;
  font-size: 0.9rem;
  color: var(--color-text);
  overflow-wrap: break-word;
}

.note-item__delete {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 1.5rem;
  height: 1.5rem;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--color-text-muted);
  cursor: pointer;
  font-size: 1rem;
  line-height: 1;
  transition: background var(--transition), color var(--transition), opacity var(--transition);
  opacity: 0;
}
.note-item:hover .note-item__delete,
.note-item:focus-within .note-item__delete { opacity: 1; }
/* stylelint-disable-next-line no-descending-specificity -- intentional: parent hover reveals the button; this adds element-level hover styling on top */
.note-item__delete:hover {
  background: rgba(220, 38, 38, 0.1);
  color: var(--color-danger);
}
/* stylelint-disable-next-line no-descending-specificity -- intentional: focus-visible state on the element itself, needed regardless of parent hover context */
.note-item__delete:focus-visible {
  opacity: 1;
  outline: 2px solid var(--color-danger);
  outline-offset: 2px;
}

.notes__empty {
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.875rem;
  padding: 1.5rem;
}

/* ============================================
   Bookmarks tool
   ============================================ */
.bookmarks__form {
  margin-bottom: 0.5rem;
}

.bookmarks__form-row {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.bookmarks__input {
  flex: 1 1 200px;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 0.9rem;
  font-family: var(--font-main);
  transition: border-color var(--transition), box-shadow var(--transition), background var(--transition-slow), color var(--transition-slow);
}
.bookmarks__input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.18);
}
.bookmarks__input--label {
  flex: 0 1 160px;
}
.bookmarks__input::placeholder { color: var(--color-text-muted); }

.bookmarks__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  max-height: 420px;
  overflow-y: auto;
  padding-right: 0.25rem;
}
.bookmarks__list::-webkit-scrollbar { width: 4px; }
.bookmarks__list::-webkit-scrollbar-track { background: transparent; }
.bookmarks__list::-webkit-scrollbar-thumb { background: var(--color-border); border-radius: 2px; }

.bookmark-item {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  padding: 0.625rem 0.75rem;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  animation: noteIn 200ms ease forwards;
  transition: background var(--transition-slow), border-color var(--transition-slow);
}

.bookmark-item__favicon {
  flex-shrink: 0;
  width: 16px;
  height: 16px;
  border-radius: 2px;
  object-fit: contain;
}

.bookmark-item__favicon--fallback {
  font-size: 0.85rem;
  line-height: 1;
}

.bookmark-item__info {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
}

.bookmark-item__link {
  font-size: 0.9rem;
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: color var(--transition);
}
.bookmark-item__link:hover { color: var(--color-primary-hover); }

.bookmark-item__url {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.bookmark-item__delete {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 1.5rem;
  height: 1.5rem;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--color-text-muted);
  cursor: pointer;
  font-size: 1rem;
  line-height: 1;
  transition: background var(--transition), color var(--transition), opacity var(--transition);
  opacity: 0;
}
.bookmark-item:hover .bookmark-item__delete,
.bookmark-item:focus-within .bookmark-item__delete { opacity: 1; }
/* stylelint-disable-next-line no-descending-specificity -- intentional: parent hover reveals the button; this adds element-level hover styling on top */
.bookmark-item__delete:hover {
  background: rgba(220, 38, 38, 0.1);
  color: var(--color-danger);
}
/* stylelint-disable-next-line no-descending-specificity -- intentional: focus-visible state on the element itself, needed regardless of parent hover context */
.bookmark-item__delete:focus-visible {
  opacity: 1;
  outline: 2px solid var(--color-danger);
  outline-offset: 2px;
}

.bookmark-empty {
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.875rem;
  padding: 1.5rem;
}

/* ============================================
   Pomodoro Timer
   ============================================ */
.pomodoro-tool {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.75rem;
  padding: 1rem 0 0.5rem;
}

.pomodoro-ring-wrap {
  position: relative;
  width: 200px;
  height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.pomodoro-ring {
  position: absolute;
  inset: 0;
  transform: rotate(-90deg);
}

.pomodoro-ring__track {
  fill: none;
  stroke: var(--color-border);
  stroke-width: 8;
  transition: stroke var(--transition-slow);
}

.pomodoro-ring__progress {
  fill: none;
  stroke: var(--color-primary);
  stroke-width: 8;
  stroke-linecap: round;
  transition: stroke-dashoffset 0.6s linear, stroke var(--transition-slow);
}
@media (prefers-reduced-motion: reduce) {
  .pomodoro-ring__progress { transition: none; }
}

.pomodoro-ring-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.2rem;
  z-index: 1;
  pointer-events: none;
}

.pomodoro-mode {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
}

.pomodoro-time {
  font-size: 2.6rem;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--color-text);
  line-height: 1;
  letter-spacing: -0.02em;
}

.pomodoro-session {
  font-size: 0.72rem;
  color: var(--color-text-muted);
}

.pomodoro-controls {
  display: flex;
  gap: 0.75rem;
}

.pomodoro-btn--primary {
  min-width: 6rem;
  padding: 0.625rem 1.5rem;
  font-size: 1rem;
}

.pomodoro-btn--secondary {
  padding: 0.625rem 1.25rem;
  font-size: 1rem;
}

.pomodoro-settings {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  align-items: flex-start;
}

.pomodoro-sound-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  cursor: pointer;
  user-select: none;
}

.pomodoro-sound-label input[type="checkbox"] {
  accent-color: var(--color-primary);
  width: 1rem;
  height: 1rem;
  cursor: pointer;
}

.pomodoro-preset-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.pomodoro-preset-label {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.pomodoro-preset-select {
  font-size: 0.85rem;
  padding: 0.2rem 0.4rem;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  background: var(--color-bg);
  color: var(--color-text);
  cursor: pointer;
}

.pomodoro-preset-select:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 1px;
}

.pomodoro-custom-fields {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.pomodoro-custom-label {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.pomodoro-custom-input {
  width: 3.5rem;
  padding: 0.2rem 0.3rem;
  text-align: center;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 0.85rem;
}

.pomodoro-custom-input:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 1px;
}

.pomodoro-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  font-size: 0.8rem;
  color: var(--color-text-muted, var(--color-text));
  opacity: 0.75;
  margin-top: 0.25rem;
}

.pomodoro-streak {
  font-weight: 600;
  color: var(--color-primary);
  opacity: 1;
}

.pomodoro-streak-since {
  font-size: 0.75rem;
  opacity: 0.85;
}

/* ============================================
   About section
   ============================================ */
.about {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: 3rem 1.25rem;
  transition: background var(--transition-slow);
}

.about__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.about h2 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0;
}

.about p {
  color: var(--color-text-muted);
  max-width: 60ch;
  font-size: 0.9rem;
}

.about a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.about a:hover { text-decoration-style: double; }

.about__meta { font-size: 0.82rem; }

/* ============================================
   Number Base Converter
   ============================================ */
.base-grid {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
}

.base-row {
  display: grid;
  grid-template-columns: 3rem 1fr auto;
  gap: 0.5rem;
  align-items: center;
}

.base-label {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--color-text-muted);
  letter-spacing: 0.05em;
  text-align: right;
}

.base-input {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  padding: 0.45rem 0.625rem;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
  min-width: 0;
}

.base-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.base-bits {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-top: 0.375rem;
  min-height: 1.25em;
}

/* ============================================
   Footer
   ============================================ */
.footer {
  padding: 1rem 1.25rem;
  text-align: center;
  border-top: 1px solid var(--color-border);
  font-size: 0.78rem;
  color: var(--color-text-muted);
  background: var(--color-surface);
  transition: background var(--transition-slow), border-color var(--transition-slow);
}

/* ============================================
   Timestamp Converter
   ============================================ */
.ts-results {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.ts-result-row {
  display: grid;
  grid-template-columns: 9rem 1fr;
  border-bottom: 1px solid var(--color-border);
  font-family: var(--font-mono);
  font-size: 0.82rem;
}
.ts-result-row:last-child { border-bottom: none; }
.ts-result-row dt {
  padding: 0.55rem 0.875rem;
  background: var(--color-surface);
  color: var(--color-text-muted);
  font-weight: 600;
  font-family: var(--font-sans);
  font-size: 0.75rem;
  display: flex;
  align-items: center;
  border-right: 1px solid var(--color-border);
  white-space: nowrap;
}
.ts-result-row dd {
  margin: 0;
  padding: 0.55rem 0.875rem;
  color: var(--color-text);
  background: var(--color-bg);
  display: flex;
  align-items: center;
  word-break: break-all;
}

/* ============================================
   chmod Calculator
   ============================================ */
.chmod-grid {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-bottom: 1.25rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.chmod-header-row,
.chmod-bit-row {
  display: grid;
  grid-template-columns: 7rem 1fr 1fr 1fr;
  align-items: center;
}

.chmod-header-row {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.chmod-bit-row {
  border-bottom: 1px solid var(--color-border);
}
.chmod-bit-row:last-child {
  border-bottom: none;
}

.chmod-col-head {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-text-muted);
  letter-spacing: 0.04em;
  text-align: center;
  padding: 0.4rem 0;
  text-transform: uppercase;
}

.chmod-bit-label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-text);
  padding: 0.55rem 0.75rem;
  border-right: 1px solid var(--color-border);
}

.chmod-bit-label--muted {
  color: var(--color-text-muted);
}

.chmod-check {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  padding: 0.55rem 0;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--color-text);
  cursor: pointer;
  user-select: none;
  border-right: 1px solid var(--color-border);
  transition: background var(--transition);
}
.chmod-check:last-child {
  border-right: none;
}
.chmod-check:hover {
  background: var(--color-surface);
}
.chmod-check input[type="checkbox"] {
  accent-color: var(--color-primary);
  width: 1rem;
  height: 1rem;
  cursor: pointer;
}

.chmod-check--special {
  font-size: 0.72rem;
  color: var(--color-text-muted);
}

.chmod-special-row {
  background: var(--color-surface);
}

.chmod-outputs {
  margin-top: 0;
}

.chmod-cmd-output {
  color: var(--color-text-muted);
}

/* ============================================
   Unicode Character Inspector
   ============================================ */
.cm-empty {
  padding: 2rem;
  text-align: center;
  color: var(--color-text-muted);
  background: var(--color-surface);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-sm);
}

.cm-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
}

.cm-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

.cm-th {
  padding: 0.5rem 0.75rem;
  text-align: left;
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-muted);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  white-space: nowrap;
}

.cm-row {
  border-bottom: 1px solid var(--color-border);
}
.cm-row:last-child {
  border-bottom: none;
}
.cm-row--special {
  background: color-mix(in srgb, var(--color-danger, #ef4444) 6%, transparent);
}

.cm-cell {
  padding: 0.35rem 0.75rem;
  vertical-align: middle;
}
.cm-cell code {
  font-family: var(--font-mono);
  font-size: 0.82rem;
}

.cm-char {
  display: inline-block;
  min-width: 1.6rem;
  text-align: center;
  font-size: 1.1rem;
  line-height: 1;
  padding: 0.15rem 0.3rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 3px;
}
.cm-char--control {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--color-danger, #ef4444);
  background: color-mix(in srgb, var(--color-danger, #ef4444) 8%, var(--color-surface));
}

/* Category badges */
.cm-cat {
  display: inline-block;
  padding: 0.1em 0.45em;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 600;
  line-height: 1.4;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.cm-cat--ascii   { background: color-mix(in srgb, #22c55e 15%, transparent); color: #16a34a; }
.cm-cat--unicode { background: color-mix(in srgb, #3b82f6 15%, transparent); color: #1d4ed8; }
.cm-cat--control { background: color-mix(in srgb, #ef4444 15%, transparent); color: #dc2626; }
.cm-cat--space   { background: color-mix(in srgb, #f97316 15%, transparent); color: #ea580c; }
.cm-cat--emoji   { background: color-mix(in srgb, #a855f7 15%, transparent); color: #7c3aed; }

@media (prefers-color-scheme: dark) {
  .cm-cat--ascii   { color: #86efac; }
  .cm-cat--unicode { color: #93c5fd; }
  .cm-cat--control { color: #fca5a5; }
  .cm-cat--space   { color: #fdba74; }
  .cm-cat--emoji   { color: #d8b4fe; }
}

/* ============================================
   CSS Specificity Calculator
   ============================================ */
.css-spec-input {
  width: 100%;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  color: var(--color-text);
  outline: none;
  box-sizing: border-box;
}
.css-spec-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px color-mix(in sRGB, var(--color-primary) 20%, transparent);
}

.css-spec-placeholder {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  padding: 1rem;
  display: block;
}

/* (a,b,c) tuple display */
.css-spec-result-pane {
  min-height: 5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.css-spec-tuple {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.75rem 0;
}

.css-spec-col {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
  min-width: 4rem;
}

.css-spec-num {
  font-size: 2.5rem;
  font-weight: 700;
  font-family: var(--font-mono);
  line-height: 1;
  border-radius: var(--radius-sm);
  padding: 0.1em 0.3em;
}
.css-spec-num--a { color: #7c3aed; background: color-mix(in srgb, #7c3aed 12%, transparent); }
.css-spec-num--b { color: #0369a1; background: color-mix(in srgb, #0369a1 12%, transparent); }
.css-spec-num--c { color: #15803d; background: color-mix(in srgb, #15803d 12%, transparent); }

.css-spec-label {
  font-size: 0.72rem;
  font-weight: 600;
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-muted);
  line-height: 1.3;
}

.css-spec-comma {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-text-muted);
  align-self: flex-start;
  padding-top: 0.2em;
}

.css-spec-score {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

/* Token breakdown table */
.css-spec-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}
.css-spec-table th {
  padding: 0.4rem 0.75rem;
  text-align: left;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-muted);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}
.css-spec-table td {
  padding: 0.35rem 0.75rem;
  border-bottom: 1px solid var(--color-border);
  vertical-align: middle;
}
.css-spec-table tr:last-child td {
  border-bottom: none;
}
.css-spec-token-code {
  font-family: var(--font-mono);
  font-size: 0.85rem;
}
.css-spec-contrib {
  color: var(--color-text-muted);
  font-size: 0.82rem;
}
.css-spec-zero {
  opacity: 0.5;
  font-style: italic;
}

/* Compare section */
.css-spec-compare {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 0.75rem;
  align-items: center;
}
.css-spec-compare__input {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}
.css-spec-compare__label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-text-muted);
}
.css-spec-compare__vs {
  font-weight: 700;
  color: var(--color-text-muted);
  text-align: center;
  font-size: 0.85rem;
}
.css-spec-cmp-result {
  margin-top: 0.5rem;
  font-size: 0.9rem;
}

/* Winner badge */
.css-cmp-badge {
  display: inline-block;
  padding: 0.15em 0.55em;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.css-cmp-badge--win {
  background: color-mix(in srgb, #22c55e 15%, transparent);
  color: #15803d;
}
.css-cmp-badge--tie {
  background: color-mix(in srgb, #94a3b8 20%, transparent);
  color: var(--color-text-muted);
}

@media (prefers-color-scheme: dark) {
  .css-spec-num--a { color: #c4b5fd; }
  .css-spec-num--b { color: #7dd3fc; }
  .css-spec-num--c { color: #86efac; }
  .css-cmp-badge--win { color: #86efac; }
}

@media (max-width: 600px) {
  .css-spec-compare {
    grid-template-columns: 1fr;
  }
  .css-spec-compare__vs {
    text-align: left;
  }
}

/* ============================================
   Time Zone Converter
   ============================================ */
.tz-inputs {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.tz-field {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.tz-label {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  font-weight: 500;
}

.tz-zones {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 0.75rem;
  align-items: start;
}

.tz-zone-pane {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.tz-search {
  margin-bottom: 0.2rem;
}

.tz-select {
  width: 100%;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  color: var(--color-text);
  padding: 0.2rem;
  cursor: pointer;
}

.tz-select:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 1px;
}

.tz-zone-arrow {
  align-self: center;
  font-size: 1.4rem;
  color: var(--color-text-muted);
  padding-top: 2rem;
}

.tz-actions {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.tz-result {
  background: var(--color-surface);
  border-radius: var(--radius-sm);
  padding: 1rem;
  border: 1px solid var(--color-border);
}

.tz-result__big {
  font-family: var(--font-mono);
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--color-text);
  word-break: break-all;
}

.tz-result__meta {
  margin-top: 0.75rem;
  font-size: 0.82rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.tz-result__meta-row {
  display: flex;
  gap: 0.5rem;
}

.tz-result__meta-row dt {
  color: var(--color-text-muted);
  min-width: 3rem;
  font-weight: 500;
}

.tz-result__meta-row dd {
  font-family: var(--font-mono);
  color: var(--color-text);
  margin: 0;
}

@media (max-width: 600px) {
  .tz-zones {
    grid-template-columns: 1fr;
  }
  .tz-zone-arrow {
    padding-top: 0;
    text-align: center;
  }
}

/* ============================================
   Text Diff Tool
   ============================================ */
.diff-output {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  line-height: 1.5;
  overflow-x: auto;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  min-height: 8rem;
  padding: 0.25rem 0;
  transition: border-color var(--transition), background var(--transition-slow);
}

.diff-empty {
  display: block;
  padding: 1rem;
  color: var(--color-text-muted);
  font-family: var(--font-main);
  font-size: 0.875rem;
}

.diff-line {
  display: grid;
  grid-template-columns: 3ch 3ch 1.5ch 1fr;
  gap: 0 0.25rem;
  padding: 0 0.5rem;
  min-height: 1.5em;
  align-items: baseline;
}

.diff-line--insert { background: var(--color-ok-bg); }
.diff-line--delete { background: var(--color-error-bg); }

.diff-linenum {
  font-size: 0.7rem;
  text-align: right;
  color: var(--color-text-muted);
  opacity: 0.6;
  user-select: none;
}

.diff-sign {
  font-weight: 700;
  user-select: none;
  text-align: center;
}
.diff-line--insert .diff-sign { color: var(--color-ok); }
.diff-line--delete .diff-sign { color: var(--color-danger); }
.diff-line--equal  .diff-sign { color: transparent; }

.diff-content {
  white-space: pre-wrap;
  word-break: break-all;
  color: var(--color-text);
}
.diff-line--equal .diff-content { color: var(--color-text-muted); }

/* ============================================
   Password Generator
   ============================================ */
.pw-controls {
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
  margin-bottom: 0.75rem;
}

.pw-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.pw-label {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--color-text-muted);
  letter-spacing: 0.05em;
  white-space: nowrap;
}

.pw-slider {
  flex: 1;
  accent-color: var(--color-primary);
  cursor: pointer;
}

.pw-len-value {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--color-text);
  min-width: 2ch;
  text-align: right;
}

.pw-checkboxes {
  border: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
}

.pw-checkboxes legend {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--color-text-muted);
  letter-spacing: 0.05em;
  margin-bottom: 0.375rem;
  float: left;
  width: 100%;
}

.pw-check-label {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.85rem;
  color: var(--color-text);
  cursor: pointer;
  user-select: none;
}

.pw-check-label input[type="checkbox"] {
  accent-color: var(--color-primary);
  width: 1rem;
  height: 1rem;
  cursor: pointer;
}

.pw-actions {
  display: flex;
  gap: 0.5rem;
}

.pw-output-row {
  margin-top: 0.5rem;
}

.pw-output {
  font-family: var(--font-mono);
  font-size: 1rem;
  letter-spacing: 0.04em;
  padding: 0.6rem 0.875rem;
  width: 100%;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  box-sizing: border-box;
  transition: border-color var(--transition);
}

.pw-output:focus {
  outline: none;
  border-color: var(--color-primary);
}

.pw-entropy {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  margin: 0.5rem 0 0;
  padding: 0;
  color: var(--color-text-muted);
}

.pw-entropy--weak   { color: var(--color-entropy-weak); }
.pw-entropy--fair   { color: var(--color-entropy-fair); }
.pw-entropy--good   { color: var(--color-entropy-good); }
.pw-entropy--strong { color: var(--color-entropy-strong); }

/* ============================================
   Tool section divider
   ============================================ */
.tool-divider {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: 2rem 0;
}

/* ============================================
   String Utilities
   ============================================ */
.str-ops {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding-top: 0.75rem;
}

.str-ops__group {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.str-ops__label {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--color-text-muted);
  min-width: 2.75rem;
  padding-top: 0.4rem;
  flex-shrink: 0;
}

.str-live-stats {
  font-size: 0.72rem;
  color: var(--color-text-muted);
  margin: 0.25rem 0 0;
  min-height: 1em;
  letter-spacing: 0.01em;
}

/* ============================================
   Hash & HMAC Tool
   ============================================ */

/* Hash panel: wider label column to fit "SHA-256" etc. */
#panel-hash .base-row {
  grid-template-columns: 4.5rem 1fr auto;
}

/* Hash compare mode */
.hash-group {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
}

.hash-row-btns {
  display: flex;
  gap: 0.375rem;
}

.hash-compare-row {
  display: grid;
  grid-template-columns: 4.5rem 1fr auto;
  gap: 0.5rem;
  align-items: center;
}

.hash-match {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  white-space: nowrap;
  min-width: 5.5rem;
  text-align: center;
}

.hash-match--ok  { color: var(--color-ok); }
.hash-match--err { color: var(--color-danger); }

/* Hash tool section divider (SHA / HMAC) */
.tool__divider {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 1.25rem 0;
  color: var(--color-text-muted);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.tool__divider::before,
.tool__divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--color-border);
}

/* HMAC key input — full-width editable field */
.hmac-key-input {
  width: 100%;
  box-sizing: border-box;
  display: block;
}

/* Secondary pane header with top spacing */
.pane__header--mt {
  margin-top: 0.75rem;
}

/* ============================================
   File drop zone
   ============================================ */
.file-drop-zone {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  padding: 1.5rem 1rem;
  border: 2px dashed var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
  text-align: center;
  min-height: 9rem;
}

.file-drop-zone:hover,
.file-drop-zone:focus-visible {
  border-color: var(--color-accent);
  outline: none;
}

.file-drop-zone--active {
  border-color: var(--color-accent);
  background: color-mix(in sRGB, var(--color-accent) 8%, var(--color-surface));
}

.file-drop-zone--loaded {
  border-style: solid;
  border-color: var(--color-ok);
  background: color-mix(in sRGB, var(--color-ok) 5%, var(--color-surface));
}

.file-drop-zone__input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.file-drop-zone__icon {
  font-size: 1.75rem;
  line-height: 1;
  color: var(--color-muted);
}

.file-drop-zone--loaded .file-drop-zone__icon {
  color: var(--color-ok);
}

.file-drop-zone__label {
  font-size: 0.9rem;
  color: var(--color-text);
}

.file-drop-zone__browse {
  color: var(--color-accent);
  text-decoration: underline;
}

.file-drop-zone__hint {
  font-size: 0.78rem;
  color: var(--color-muted);
}

/* ============================================
   CIDR / IP Subnet Calculator
   ============================================ */
.cidr-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}
.cidr-table th {
  padding: 0.4rem 0.75rem;
  text-align: left;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-muted);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}
/* stylelint-disable-next-line no-descending-specificity -- different component (.cidr-table vs .css-spec-table); both style td but don't cascade-compete */
.cidr-table td {
  padding: 0.4rem 0.75rem;
  border-bottom: 1px solid var(--color-border);
  vertical-align: middle;
}
.cidr-table tr:last-child td {
  border-bottom: none;
}
.cidr-field-label {
  color: var(--color-text-muted);
  white-space: nowrap;
  width: 1%;
}
.cidr-field-value code {
  font-family: var(--font-mono);
  font-size: 0.875rem;
}
.cidr-note {
  margin: 0.75rem 0 0;
  font-size: 0.82rem;
  color: var(--color-text-muted);
  font-style: italic;
}

/* ============================================
   UUID Generator
   ============================================ */
.uuid-controls {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
  margin-bottom: 0.75rem;
}

.uuid-control-row {
  display: grid;
  grid-template-columns: 5rem 1fr;
  gap: 0.5rem;
  align-items: center;
}

.uuid-label {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--color-text-muted);
  letter-spacing: 0.05em;
}

.uuid-select-wrap {
  display: flex;
}

.uuid-select {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  padding: 0.4rem 0.6rem;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  cursor: pointer;
  transition: border-color var(--transition);
  min-width: 0;
}

.uuid-select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.uuid-actions {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.25rem;
}

.uuid-output {
  min-height: 8rem;
}

/* ============================================
   URL Parser / Builder
   ============================================ */
.url-parser-input-wrap {
  margin-bottom: 1rem;
}

.url-parts {
  display: grid;
  gap: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: 1rem;
}

.url-part-row {
  display: grid;
  grid-template-columns: 6rem 1fr auto;
  align-items: center;
  border-bottom: 1px solid var(--color-border);
}
.url-part-row:last-child { border-bottom: none; }

.url-part-label {
  padding: 0.5rem 0.875rem;
  background: var(--color-surface);
  color: var(--color-text-muted);
  font-size: 0.75rem;
  font-weight: 600;
  font-family: var(--font-sans);
  border-right: 1px solid var(--color-border);
  white-space: nowrap;
  align-self: stretch;
  display: flex;
  align-items: center;
}

.url-part-input {
  padding: 0.5rem 0.75rem;
  border: none;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  width: 100%;
  outline: none;
  transition: background var(--transition-slow);
}
.url-part-input:focus {
  background: color-mix(in sRGB, var(--color-primary) 6%, var(--color-bg));
}
.url-part-input--short { max-width: 8rem; }

.url-parts .btn { margin: 0.25rem 0.5rem 0.25rem 0; }

.url-params-section { margin-bottom: 0.5rem; }

.url-params-list {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-top: 0.5rem;
}

.url-param-row {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto;
  align-items: center;
  border-bottom: 1px solid var(--color-border);
}
.url-param-row:last-child { border-bottom: none; }

.url-param-key,
.url-param-val {
  padding: 0.45rem 0.75rem;
  border: none;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  width: 100%;
  outline: none;
  transition: background var(--transition-slow);
}
.url-param-key:focus,
.url-param-val:focus {
  background: color-mix(in sRGB, var(--color-primary) 6%, var(--color-bg));
}
.url-param-key::placeholder,
.url-param-val::placeholder { color: var(--color-text-muted); opacity: 0.6; }

.url-param-sep {
  padding: 0 0.25rem;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  user-select: none;
}

.url-param-remove {
  margin: 0.25rem 0.5rem 0.25rem 0;
}

@media (max-width: 480px) {
  .url-part-row {
    grid-template-columns: 5rem 1fr auto;
  }
  .url-part-label {
    font-size: 0.7rem;
    padding: 0.5rem;
  }
  .url-param-row {
    grid-template-columns: 1fr auto 1fr auto;
  }
}

/* ============================================
   Cron Expression Parser
   ============================================ */
.cron-input-wrap {
  margin-bottom: 1rem;
}

.cron-input {
  width: 100%;
  padding: 0.625rem 0.875rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: 1rem;
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.cron-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px color-mix(in sRGB, var(--color-primary) 20%, transparent);
}

.cron-presets {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
  margin-bottom: 1.25rem;
}
.cron-presets__label {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  font-weight: 600;
  white-space: nowrap;
}

.cron-desc {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1rem 1.125rem;
  margin-bottom: 1.25rem;
}
.cron-desc__text {
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: 0.75rem;
  line-height: 1.5;
}
.cron-fields {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.cron-field {
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: var(--color-text-muted);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0.2rem 0.5rem;
}

.cron-runs {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.cron-run-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.cron-run-item {
  padding: 0.5rem 1rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border);
}
.cron-run-item:last-child { border-bottom: none; }
.cron-run-item:nth-child(even) { background: var(--color-surface); }

@media (max-width: 480px) {
  .cron-presets { gap: 0.375rem; }
  .cron-input { font-size: 0.875rem; }
}

/* ── HTTP Status Codes ─────────────────────────────────────────────────────── */

.http-search-wrap {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.http-search {
  flex: 1;
  padding: 0.5rem 0.75rem;
  font-size: 0.9rem;
  font-family: var(--font-sans);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  color: var(--color-text);
  outline: none;
  transition: border-color 0.15s;
}
.http-search:focus { border-color: var(--color-primary); }

.http-count {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  white-space: nowrap;
  min-width: 7rem;
  text-align: right;
}

.http-group {
  margin-bottom: 1.5rem;
}

.http-group__label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-sm);
  display: inline-block;
  margin-bottom: 0.5rem;
}

/* Category colors — light/dark aware via CSS custom properties */
.http-cat--1xx { background: rgba(99,102,241,0.12); color: var(--color-primary); }
.http-cat--2xx { background: var(--color-ok-bg);    color: var(--color-ok); }
.http-cat--3xx { background: rgba(245,158,11,0.12); color: var(--color-warn); }
.http-cat--4xx { background: var(--color-error-bg); color: var(--color-danger); }
.http-cat--5xx { background: rgba(124,58,237,0.12); color: var(--color-secondary); }

.http-code-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.http-code-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.65rem 0.875rem;
  border-bottom: 1px solid var(--color-border);
  transition: background 0.1s;
}
.http-code-item:last-child { border-bottom: none; }
.http-code-item:nth-child(even) { background: var(--color-surface); }
.http-code-item:hover { background: var(--color-bg); }

.http-badge {
  flex-shrink: 0;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  padding: 0.15rem 0.45rem;
  border-radius: var(--radius-sm);
  min-width: 3rem;
  text-align: center;
  line-height: 1.6;
}

.http-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  min-width: 0;
}

.http-phrase {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text);
}

.http-desc {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  line-height: 1.45;
}

.http-copy {
  flex-shrink: 0;
  align-self: center;
}

.http-empty {
  text-align: center;
  color: var(--color-text-muted);
  padding: 2rem 1rem;
  font-size: 0.9rem;
}

@media (max-width: 480px) {
  .http-code-item { flex-wrap: wrap; gap: 0.5rem; }
  .http-copy { align-self: flex-start; }
}

/* ── Markdown Previewer ─────────────────────────────────────────────────────── */

.md-preview {
  padding: 1rem 1.25rem;
  overflow-y: auto;
  height: 100%;
  min-height: 16rem;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-sizing: border-box;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--color-text);
  overflow-wrap: break-word;
}

.md-preview h1,
.md-preview h2,
.md-preview h3,
.md-preview h4,
.md-preview h5,
.md-preview h6 {
  margin: 1rem 0 0.4rem;
  line-height: 1.3;
  font-weight: 700;
  color: var(--color-text);
}
.md-preview h1 { font-size: 1.6rem; border-bottom: 2px solid var(--color-border); padding-bottom: 0.2em; }
.md-preview h2 { font-size: 1.3rem; border-bottom: 1px solid var(--color-border); padding-bottom: 0.15em; }
.md-preview h3 { font-size: 1.1rem; }
.md-preview h4 { font-size: 0.95rem; }
.md-preview h5 { font-size: 0.875rem; }
.md-preview h6 { font-size: 0.8rem; color: var(--color-text-muted); }

.md-preview p { margin: 0.5rem 0; }

.md-preview strong { font-weight: 700; }
.md-preview em     { font-style: italic; }

.md-preview code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 3px;
  padding: 0.1em 0.35em;
}

.md-preview pre {
  margin: 0.75rem 0;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 0.875rem 1rem;
  overflow-x: auto;
}
.md-preview pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: 0.85rem;
  white-space: pre;
}

.md-preview ul,
.md-preview ol {
  margin: 0.5rem 0;
  padding-left: 1.5rem;
}
.md-preview li { margin: 0.2rem 0; }

.md-preview blockquote {
  margin: 0.75rem 0;
  padding: 0.5rem 1rem;
  border-left: 3px solid var(--color-accent, var(--color-border));
  color: var(--color-text-muted);
  background: var(--color-surface);
  border-radius: 0 var(--radius) var(--radius) 0;
}

.md-preview hr {
  border: none;
  border-top: 2px solid var(--color-border);
  margin: 1rem 0;
}

/* stylelint-disable-next-line no-descending-specificity -- different component (.md-preview vs .about); both style a but don't cascade-compete */
.md-preview a {
  color: var(--color-primary);
  text-decoration: underline;
}

.md-preview img {
  max-width: 100%;
  border-radius: var(--radius);
}

.md-empty {
  color: var(--color-text-muted);
  font-style: italic;
}

/* ═══════════════════════════════
   Lorem Ipsum Generator
   ═══════════════════════════════ */

.lorem-controls {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.lorem-control-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.lorem-label {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  min-width: 6rem;
  flex-shrink: 0;
}

.lorem-select {
  padding: 0.375rem 0.625rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  color: var(--color-text);
  font-size: 0.875rem;
  font-family: inherit;
  cursor: pointer;
}

.lorem-select:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.lorem-count {
  width: 5rem;
  padding: 0.375rem 0.625rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  color: var(--color-text);
  font-size: 0.875rem;
  font-family: inherit;
}

.lorem-count:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.lorem-checkboxes {
  gap: 1.5rem;
}

.lorem-check-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--color-text);
  cursor: pointer;
  user-select: none;
}

.lorem-check-label input[type="checkbox"] {
  accent-color: var(--color-primary);
  width: 1rem;
  height: 1rem;
}

.lorem-actions {
  margin-top: 0.25rem;
}

.lorem-output {
  width: 100%;
  min-height: 12rem;
  resize: vertical;
  padding: 0.75rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  color: var(--color-text);
  font-family: inherit;
  font-size: 0.9rem;
  line-height: 1.6;
  box-sizing: border-box;
}

.lorem-output:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* ── Semver Version Parser & Comparator ──────────────────────────────────── */

.semver-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.semver-table th,
/* stylelint-disable-next-line no-descending-specificity -- different component (.semver-table vs .css-spec-table); both style td but don't cascade-compete */
.semver-table td {
  padding: 0.5rem 0.75rem;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.semver-table th {
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-muted);
  background: var(--color-surface-raised, var(--color-surface));
}

.semver-field-label {
  color: var(--color-text-muted);
  font-size: 0.875rem;
  cursor: help;
}

.semver-field-value {
  font-family: var(--font-mono);
  font-size: 0.875rem;
}

.semver-field-value--empty {
  color: var(--color-text-muted);
  font-style: italic;
}

.semver-field-value--muted {
  color: var(--color-text-muted);
}

.semver-field-note {
  font-family: var(--font-sans);
  font-size: 0.8em;
  color: var(--color-text-muted);
  font-style: italic;
}

/* Compare inputs */

.semver-compare-inputs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

.semver-compare-field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.semver-compare-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* Compare result */

.semver-cmp {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  padding: 1.25rem 1rem;
  border-radius: var(--radius);
  margin-top: 0.75rem;
  background: var(--color-surface-raised, var(--color-surface));
  border: 1px solid var(--color-border);
}

.semver-cmp__ver {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 600;
  word-break: break-all;
}

.semver-cmp__op {
  font-size: 1.5rem;
  font-weight: 700;
  flex-shrink: 0;
  width: 2rem;
  text-align: center;
}

.semver-cmp--gt .semver-cmp__op { color: var(--color-ok, #22c55e); }
.semver-cmp--lt .semver-cmp__op { color: var(--color-error, #ef4444); }
.semver-cmp--eq .semver-cmp__op { color: var(--color-text-muted); }

.semver-cmp-label {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  text-align: center;
  margin-top: 0.5rem;
}

.semver-cmp-note {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  text-align: center;
  margin-top: 0.35rem;
  font-style: italic;
}

@media (max-width: 480px) {
  .semver-compare-inputs { grid-template-columns: 1fr; }
  .semver-cmp { flex-direction: column; gap: 0.5rem; }
  .semver-cmp__op { font-size: 1.25rem; }
}