/* ============================================================
   FatahCalc Pro — Precision Dark components
   ============================================================ */

/* ---------------- Buttons ---------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  padding: .6rem 1rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface-2);
  color: var(--text);
  font: 600 12px/1 var(--font-body);
  cursor: pointer;
  transition: transform var(--t-fast), background var(--t-fast),
              border-color var(--t-fast), box-shadow var(--t-fast), color var(--t-fast);
  user-select: none;
}
.btn:hover { background: var(--surface-3); border-color: var(--border); }
.btn:active { transform: translateY(1px) scale(.99); }
.btn:disabled { opacity: .5; cursor: not-allowed; }

.btn-primary {
  background: var(--button-bg);
  border-color: transparent;
  color: var(--button-text);
  font-weight: 700;
  box-shadow: 0 10px 26px -14px var(--button-bg);
}
.btn-primary:hover {
  background: var(--button-bg);
  color: var(--button-text);
  border-color: transparent;
  filter: brightness(1.07);
}

.btn-ghost { background: transparent; border-color: transparent; color: var(--text-muted); }
.btn-ghost:hover { background: var(--surface-2); color: var(--text); border-color: transparent; }

.btn-danger { color: var(--danger); border-color: transparent; background: transparent; }
.btn-danger:hover { background: rgba(251, 113, 133, .1); border-color: transparent; }

.btn-sm { padding: .4rem .7rem; font-size: 11px; }
.btn-block { width: 100%; }

.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 10px;
  border: 1px solid var(--border-soft);
  background: var(--surface-2);
  color: var(--text-muted);
  cursor: pointer;
  transition: background var(--t-fast), border-color var(--t-fast), color var(--t-fast), transform var(--t-fast);
  flex-shrink: 0;
}
.icon-btn:hover { background: var(--surface-3); border-color: var(--border); color: var(--text); }
.icon-btn:active { transform: scale(.95); }

/* ---------------- Panels & cards ---------------- */
.panel {
  background: linear-gradient(180deg, var(--surface-2), var(--surface));
  border: 1px solid var(--border-soft);
  border-radius: var(--r-lg);
  padding: var(--sp-5);
  box-shadow: var(--shadow-sm);
}
.panel + .panel { margin-top: var(--sp-4); }
.panel-title {
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .14em;
  color: var(--text-faint);
  margin-bottom: var(--sp-4);
}

/* ---------------- Forms ---------------- */
.field { display: flex; flex-direction: column; gap: .35rem; margin-bottom: var(--sp-4); min-width: 0; }
.field:last-child { margin-bottom: 0; }
.field > label, .field-label {
  font-size: 11.5px;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: .01em;
}
.field-hint { font-size: 11px; color: var(--text-faint); }
.field-error { font-size: 11px; color: var(--danger); min-height: 1em; }

input[type='text'], input[type='number'], input[type='search'], input[type='date'],
input[type='time'], input[type='datetime-local'], input[type='password'], select, textarea {
  width: 100%;
  padding: .62rem .8rem;
  border: 1px solid var(--border-soft);
  border-radius: 10px;
  background: var(--surface-2);
  color: var(--text);
  font: 500 13.5px/1.4 var(--font-body);
  transition: border-color var(--t-fast), box-shadow var(--t-fast), background var(--t-fast);
}
textarea { min-height: 96px; resize: vertical; font-family: var(--font-mono); font-size: 12px; }
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--ring);
  background: var(--surface);
}
input.is-invalid, select.is-invalid {
  border-color: var(--danger);
  box-shadow: 0 0 0 3px rgba(251, 113, 133, .16);
}
input[type='number'] { font-family: var(--font-mono); }
input[type='color'] { padding: 2px; height: 42px; cursor: pointer; }
select {
  appearance: none;
  background-image: var(--select-arrow);
  background-repeat: no-repeat;
  background-position: right .7rem center;
  background-size: 11px;
  padding-right: 2rem;
  cursor: pointer;
}
input[type='range'] { accent-color: var(--primary); width: 100%; }

.input-group { display: flex; align-items: stretch; }
.input-group input, .input-group select { border-radius: 0; min-width: 0; }
.input-group > :first-child { border-radius: 10px 0 0 10px; }
.input-group > :last-child { border-radius: 0 10px 10px 0; }
.input-group > * + * { margin-left: -1px; }
.input-group input:focus, .input-group select:focus { position: relative; z-index: 2; }
.input-group .unit-select { flex: 0 0 auto; width: auto; min-width: 5.2rem; }
input.is-derived {
  background: var(--primary-soft);
  border-color: var(--primary);
  color: var(--primary);
  font-weight: 600;
}
.input-suffix {
  display: inline-flex; align-items: center;
  padding: 0 .75rem;
  background: var(--surface-3);
  border: 1px solid var(--border-soft);
  color: var(--text-muted);
  font-size: 12px;
  white-space: nowrap;
}

.checkbox, .radio-row { display: flex; align-items: center; gap: .5rem; font-size: 12.5px; color: var(--text-muted); cursor: pointer; }
.checkbox input { width: auto; accent-color: var(--primary); }

.grid { display: grid; gap: var(--sp-4); }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.row { display: flex; gap: var(--sp-3); flex-wrap: wrap; align-items: center; }
.row-end { justify-content: flex-end; }
.stack { display: flex; flex-direction: column; gap: var(--sp-3); }
@media (max-width: 720px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .grid-2.keep, .grid-4.keep { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* ---------------- Tabs ---------------- */
.tabs {
  display: inline-flex;
  flex-wrap: wrap;
  gap: .2rem;
  padding: .25rem;
  background: var(--surface-2);
  border: 1px solid var(--border-soft);
  border-radius: var(--r-pill);
  margin-bottom: var(--sp-4);
  max-width: 100%;
}
.tab {
  padding: .44rem .9rem;
  border: none;
  background: transparent;
  border-radius: var(--r-pill);
  color: var(--text-muted);
  font: 600 12px/1 var(--font-body);
  cursor: pointer;
  transition: color var(--t-fast), background var(--t-fast), box-shadow var(--t-fast);
  white-space: nowrap;
}
.tab:hover { color: var(--text); }
.tab.is-active {
  background: var(--primary);
  color: var(--on-primary);
  box-shadow: 0 6px 18px -10px var(--primary);
}
.tab-panel { animation: route-in var(--t-mid) both; }
.tab-panel[hidden] { display: none; }

/* ---------------- Result panel ---------------- */
.result-panel {
  position: relative;
  margin-top: var(--sp-4);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: var(--sp-5);
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  flex-wrap: wrap;
  overflow: hidden;
  background: linear-gradient(135deg, var(--primary-soft), transparent 62%),
              linear-gradient(180deg, var(--surface-2), var(--surface));
  box-shadow: var(--shadow-md);
}
.result-panel::before {
  content: '';
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: var(--gradient-brand);
}
.result-main { flex: 1 1 260px; min-width: 0; }
.result-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 9.5px;
  text-transform: uppercase;
  letter-spacing: .14em;
  color: var(--text-faint);
  font-weight: 600;
  margin-bottom: .3rem;
}
.result-value {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 4.4vw, 2.3rem);
  font-weight: 800;
  letter-spacing: -.03em;
  color: var(--text);
  word-break: break-word;
  line-height: 1.15;
  font-variant-numeric: tabular-nums;
}
.result-value.is-updated { animation: result-pop var(--t-slow) both; }
@keyframes result-pop {
  0% { opacity: .35; transform: translateY(6px) scale(.985); filter: blur(2px); }
  100% { opacity: 1; transform: none; filter: none; }
}
.result-sub { font-size: 12px; color: var(--text-muted); margin-top: .35rem; }
.result-sub .mono { color: var(--text); font-variant-numeric: tabular-nums; }

/* Stat tiles */
.stat-grid { display: grid; gap: var(--sp-3); grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); }
.stat {
  background: var(--surface-2);
  border: 1px solid var(--border-soft);
  border-radius: var(--r-md);
  padding: .8rem .9rem;
}
.stat-label {
  font-family: var(--font-mono);
  font-size: 9px;
  color: var(--text-faint);
  text-transform: uppercase;
  letter-spacing: .08em;
  font-weight: 600;
}
.stat-value {
  font-family: var(--font-mono);
  font-size: var(--fs-md);
  font-weight: 700;
  color: var(--text);
  word-break: break-word;
  font-variant-numeric: tabular-nums;
}
.stat-value.accent { color: var(--accent); }

/* ---------------- Badges ---------------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  padding: .22rem .6rem;
  border-radius: var(--r-pill);
  font-family: var(--font-mono);
  font-size: 9.5px;
  font-weight: 600;
  letter-spacing: .03em;
  background: var(--surface-3);
  color: var(--text-muted);
  border: 1px solid var(--border-soft);
}
.badge-success { background: rgba(52, 211, 153, .12); color: var(--success); border-color: transparent; }
.badge-warning { background: rgba(251, 191, 36, .14); color: var(--warning); border-color: transparent; }
.badge-danger { background: rgba(251, 113, 133, .13); color: var(--danger); border-color: transparent; }
.badge-info { background: rgba(125, 208, 255, .12); color: var(--info); border-color: transparent; }
.badge-primary { background: var(--primary-soft); color: var(--primary); border-color: transparent; }

/* ---------------- Tables ---------------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--border-soft); border-radius: var(--r-md); }
table.data-table { width: 100%; border-collapse: collapse; font-size: 12px; }
.data-table th, .data-table td { padding: .6rem .75rem; text-align: right; white-space: nowrap; }
.data-table th:first-child, .data-table td:first-child { text-align: left; }
.data-table thead th {
  background: var(--surface-2);
  color: var(--text-faint);
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .06em;
  position: sticky; top: 0;
}
.data-table tbody tr { border-top: 1px solid var(--border-soft); }
.data-table tbody tr:hover { background: var(--surface-2); }
.data-table td.num { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }
.gpa-row .c-name { min-width: 9rem; }
.gpa-row .c-credits { min-width: 4.5rem; }
.gpa-row .c-grade { min-width: 8.5rem; }
.data-table tbody tr.is-best { background: var(--primary-soft); }
.data-table tbody tr.is-best td { color: var(--text); font-weight: 600; }
.cipher-alphabet th, .cipher-alphabet td { padding: .4rem .5rem; text-align: center; }
.cipher-alphabet th[scope='row'] {
  text-align: left;
  color: var(--text-muted);
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: .06em;
  background: var(--surface-2);
  position: sticky; left: 0;
}

/* ---------------- Hero (editorial; mirrors Design/code.html) ---------------- */
.hero {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  padding: 0 0 .5rem;
  margin: 0 0 2.5rem;
  border-bottom: 1px solid var(--border-soft);
}
.hero-copy { min-width: 0; }
.hero-eyebrow {
  display: inline-flex;
  white-space: nowrap;
  align-items: center;
  gap: .45rem;
  padding: .3rem .65rem;
  margin-bottom: .8rem;
  border: 1px solid var(--border-soft);
  border-radius: var(--r-pill);
  background: var(--surface-2);
  color: var(--primary);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
}
.hero-eyebrow .status-dot { width: 6px; height: 6px; }
.hero h1 {
  font-size: clamp(2rem, 4.4vw, 3rem);
  font-weight: 800;
  letter-spacing: -.035em;
  line-height: 1.05;
  max-width: 20ch;
  margin: 0;
}
.hero h1 em {
  font-style: normal;
  background: var(--gradient-heading);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-lead {
  max-width: 28rem;
  margin: 0 0 .1rem;
  font-size: .8125rem;
  line-height: 1.55;
  color: var(--text-muted);
}
@media (min-width: 640px) { .hero-lead { font-size: .875rem; } }
@media (min-width: 768px) {
  .hero {
    flex-direction: row;
    align-items: flex-end;
    justify-content: space-between;
    gap: 1.5rem;
  }
}

/* ---------------- Preview lab (bento) ---------------- */
.preview-lab { margin: 0 0 2.5rem; }
.lab-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: .5rem 1rem;
  margin-bottom: 1rem;
}
.lab-heading {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--primary);
}
.lab-sep { width: 3px; height: 3px; border-radius: 50%; background: var(--border); }
.lab-sub { color: var(--text-faint); text-transform: uppercase; }
.lab-meta {
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--text-muted);
  white-space: nowrap;
}
/* Exact reference rhythm: 1 column, then 3, then 12 with 5/4/3 + 7/5. */
.lab-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}
.lab-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  min-width: 0;
  padding: 1.25rem;
  border: 1px solid var(--border);
  border-radius: 1rem;
  background: linear-gradient(180deg, var(--surface-2), var(--surface));
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}
.lab-card::before {
  content: '';
  position: absolute;
  inset: -45% -10% auto;
  height: 190px;
  background: radial-gradient(circle at 50% 0%, var(--lab-glow, var(--primary-soft)), transparent 70%);
  pointer-events: none;
}
.lab-card--fx { --lab-glow: rgba(56, 189, 248, .16); }
.lab-card--tip { --lab-glow: rgba(167, 139, 250, .16); }
.lab-card--bmi { --lab-glow: rgba(52, 211, 153, .14); }
.lab-card--base { --lab-glow: rgba(56, 189, 248, .1); }
.lab-card--telemetry { --lab-glow: rgba(167, 139, 250, .1); }
@media (min-width: 768px) {
  .lab-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .lab-badge { display: none; }
}
@media (min-width: 1024px) {
  .lab-grid { grid-template-columns: repeat(12, minmax(0, 1fr)); }
  .lab-badge { display: inline-flex; }
  .lab-card--fx { grid-column: span 5; }
  .lab-card--tip { grid-column: span 4; }
  .lab-card--bmi { grid-column: span 3; }
  .lab-card--base { grid-column: span 7; }
  .lab-card--telemetry { grid-column: span 5; }
}
.lab-card-head {
  position: relative;
  display: flex;
  align-items: center;
  gap: .6rem;
  min-width: 0;
}
.lab-card-head > div { min-width: 0; }
.lab-icon {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
  display: grid;
  place-items: center;
  border-radius: .5rem;
  border: 1px solid var(--border-soft);
  background: var(--primary-soft);
  color: var(--primary);
  font-size: .85rem;
}
.lab-icon--violet { color: var(--accent); background: var(--accent-soft); }
.lab-icon--emerald { color: var(--success); background: rgba(52, 211, 153, .12); }
.lab-card-head h2 {
  font-family: var(--font-display);
  font-size: .875rem;
  font-weight: 700;
  margin: 0 0 .15rem;
  line-height: 1.25;
  letter-spacing: -.015em;
}
.lab-card-head p {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .01em;
  color: var(--text-faint);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.lab-badge {
  margin-left: auto;
  flex-shrink: 0;
  padding: .2rem .5rem;
  border-radius: .25rem;
  border: 1px solid var(--border-soft);
  background: var(--surface-2);
  color: var(--text-faint);
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
  white-space: nowrap;
}
.lab-badge--ok {
  color: var(--success);
  border-color: rgba(52, 211, 153, .28);
  background: rgba(52, 211, 153, .09);
}
.lab-inner {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: .75rem;
  min-width: 0;
  padding: 1rem;
  border: 1px solid var(--border-soft);
  border-radius: .75rem;
  background: var(--bg);
}
.lab-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: .5rem;
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--text-faint);
}
.lab-amount {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -.02em;
  color: var(--primary);
  font-variant-numeric: tabular-nums;
}
.lab-tiles {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: .5rem;
  padding-top: .5rem;
  border-top: 1px solid var(--border-soft);
}
.lab-tile {
  min-width: 0;
  padding: .5rem .35rem;
  border: 1px solid var(--border-soft);
  border-radius: .5rem;
  background: var(--surface-2);
  text-align: center;
}
.lab-tile label, .lab-tile span {
  display: block;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--text-faint);
}
.lab-tile strong {
  display: block;
  margin-top: .18rem;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--text);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.lab-tile--accent strong { color: var(--primary); }
.lab-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: nowrap;
  gap: .6rem;
  margin-top: auto;
  padding-top: .55rem;
  border-top: 1px solid var(--border-soft);
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--text-faint);
  letter-spacing: .01em;
}
.lab-foot > span { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.lab-foot a {
  display: inline-flex;
  align-items: center;
  gap: .3rem;
  color: var(--primary);
  white-space: nowrap;
}
.lab-foot a:hover { color: var(--primary-strong); }
.lab-foot a i { font-size: .85em; }
.lab-empty {
  padding: .7rem;
  border: 1px dashed var(--border);
  border-radius: 8px;
  color: var(--text-muted);
  font-size: 11.5px;
  line-height: 1.45;
  text-align: center;
}
.lab-empty strong { display: block; color: var(--text); font-size: 11.5px; margin-bottom: .15rem; }
.lab-note { font-family: var(--font-mono); font-size: 9.5px; color: var(--text-faint); margin: 0; }
.lab-presets { display: flex; gap: .25rem; }
.lab-preset, .lab-step {
  border: 1px solid var(--border-soft);
  background: var(--surface-2);
  color: var(--text-muted);
  border-radius: 6px;
  font-family: var(--font-mono);
  font-size: 9.5px;
  font-weight: 600;
  cursor: pointer;
  transition: border-color var(--t-fast), background var(--t-fast), color var(--t-fast);
}
.lab-preset { padding: .28rem .5rem; }
.lab-step { width: 24px; height: 24px; display: grid; place-items: center; font-size: 12px; }
.lab-preset:hover, .lab-step:hover { border-color: var(--border); color: var(--text); background: var(--surface-3); }
.lab-preset.is-active {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--accent);
}
.lab-split { display: flex; align-items: center; gap: .5rem; }
.lab-split-value {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text);
  min-width: 3.2rem;
  text-align: center;
  font-variant-numeric: tabular-nums;
}
.lab-result-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: .5rem;
  padding-top: .55rem;
  border-top: 1px solid var(--border-soft);
}
.lab-result-row span {
  font-family: var(--font-mono);
  font-size: 9.5px;
  color: var(--text-faint);
  text-transform: uppercase;
  letter-spacing: .05em;
}
.lab-result-main {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 800;
  letter-spacing: -.03em;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}
.lab-result-sub {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text);
  font-variant-numeric: tabular-nums;
}
.lab-result-side { text-align: right; }
.lab-score--warn { color: var(--warning); }
.lab-score--danger { color: var(--danger); }
.lab-inner input[type='range'] { height: 18px; margin: 0; }
.lab-inner select {
  width: auto;
  max-width: 8.5rem;
  padding: .32rem 1.6rem .32rem .5rem;
  border-radius: 6px;
  font-family: var(--font-mono);
  font-size: 9.5px;
  background-size: 9px;
  background-position: right .45rem center;
}
.lab-gauge {
  position: relative;
  height: 8px;
  margin: .55rem 0 .35rem;
  border-radius: var(--r-pill);
  background: linear-gradient(90deg, #38bdf8, #34d399 34%, #fbbf24 66%, #fb7185);
}
.lab-gauge-marker {
  position: absolute;
  top: 50%;
  left: 45%;
  width: 14px;
  height: 14px;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  border: 2px solid var(--surface);
  background: #ffffff;
  box-shadow: 0 2px 8px rgba(0, 0, 0, .45);
  transition: left var(--t-mid);
}
.lab-gauge-labels {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 8px;
  color: var(--text-faint);
  letter-spacing: .04em;
}
.lab-score-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .5rem;
  padding-top: .55rem;
  border-top: 1px solid var(--border-soft);
}
.lab-score {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -.03em;
  color: var(--success);
  font-variant-numeric: tabular-nums;
}
.lab-status {
  padding: .2rem .5rem;
  border-radius: 5px;
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: .03em;
  border: 1px solid var(--border-soft);
  background: var(--surface-2);
  color: var(--text-muted);
}
.lab-status--ok { color: var(--success); border-color: rgba(52, 211, 153, .28); background: rgba(52, 211, 153, .09); }
.lab-status--warn { color: var(--warning); border-color: rgba(251, 191, 36, .28); background: rgba(251, 191, 36, .09); }
.lab-status--danger { color: var(--danger); border-color: rgba(251, 113, 133, .28); background: rgba(251, 113, 133, .09); }
.lab-base-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .5rem;
}
@media (min-width: 1024px) {
  .lab-base-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .lab-card--base .lab-inner { flex: 1; justify-content: space-between; }
}
@media (max-width: 1023px) { .lab-foot { font-size: 9px; } }
@media (max-width: 767px) { .lab-foot { font-size: 10.5px; } }
@media (min-width: 1024px) and (max-width: 1220px) {
  .lab-card { padding: 1rem; gap: .75rem; }
  .lab-inner { padding: .75rem; }
  .lab-card-head h2 { font-size: .8rem; }
  .lab-foot { font-size: 9.5px; }
}
.lab-base-field { display: flex; flex-direction: column; gap: .25rem; min-width: 0; }
.lab-base-field > label {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--text-faint);
}
.lab-base-line { display: flex; gap: .25rem; min-width: 0; }
.lab-base-input {
  min-width: 0;
  width: 100%;
  padding: .45rem .55rem;
  border: 1px solid var(--border-soft);
  border-radius: .375rem;
  background: var(--surface-2);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}
.lab-base-input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--ring);
  background: var(--surface);
}
.lab-copy {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border: 1px solid var(--border-soft);
  border-radius: 6px;
  background: var(--surface-2);
  color: var(--text-faint);
  cursor: pointer;
  font-size: 9px;
}
.lab-copy:hover { color: var(--primary); border-color: var(--border); }
.lab-telemetry {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .5rem;
}
.lab-telemetry .lab-tile { text-align: left; padding: .6rem .7rem; }
.lab-telemetry .lab-tile strong { font-size: 1.15rem; margin-top: .25rem; }
.lab-telemetry .lab-tile small {
  display: block;
  margin-top: .2rem;
  font-family: var(--font-mono);
  font-size: 9px;
  color: var(--text-faint);
}

/* ---------------- Filter dock (glass capsule) ---------------- */
.filter-dock {
  position: sticky;
  top: var(--dock-top);
  z-index: 70;
  display: flex;
  align-items: center;
  gap: .5rem;
  margin: 0 0 1.5rem;
  padding: .4rem;
  border: 1px solid var(--border);
  border-radius: 1rem;
  background: var(--glass);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  box-shadow: var(--shadow-md);
}
.dock-search { position: relative; flex: 0 0 240px; min-width: 0; }
.filter-dock .home-search { width: 100%; margin: 0; }

.home-search {
  position: relative;
  display: flex;
  align-items: center;
  width: 100%;
  margin: 0;
}
.home-search .search-icon {
  position: absolute;
  left: .85rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: .78rem;
  color: var(--text-faint);
  pointer-events: none;
  transition: color var(--t-fast);
}
.home-search:focus-within .search-icon { color: var(--primary); }
.home-search input {
  width: 100%;
  height: 38px;
  padding: .4rem .8rem .4rem 2.3rem;
  border: 1px solid var(--border-soft);
  border-radius: .6rem;
  background: var(--surface-2);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 11px;
}
.home-search input::placeholder { color: var(--text-faint); opacity: 1; }
.home-search input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--ring);
  background: var(--surface);
}
.route-view > .home-search { margin: 1.35rem 0 1.1rem; }

.dock-chips {
  flex: 1 1 auto;
  min-width: 0;
  display: flex;
  align-items: center;
  gap: .35rem;
  flex-wrap: nowrap;
  overflow-x: auto;
  padding: .1rem;
  scroll-snap-type: x proximity;
  scrollbar-width: thin;
}
.dock-chips .chip {
  flex: 0 0 auto;
  scroll-snap-align: start;
  scroll-margin-inline: 1rem;
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .38rem .65rem;
  border-radius: 10px;
  border: 1px solid var(--border-soft);
  background: var(--surface-2);
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
  transition: color var(--t-fast), background var(--t-fast), border-color var(--t-fast);
}
.dock-chips .chip:hover { color: var(--text); border-color: var(--border); }
.dock-chips .chip.is-active {
  background: var(--primary);
  border-color: var(--primary);
  color: var(--on-primary);
  font-weight: 700;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .2);
}
.chip-count {
  font-size: 8.5px;
  font-variant-numeric: tabular-nums;
}
.chip-sep {
  flex: 0 0 auto;
  width: 1px;
  height: 20px;
  margin: 0 .35rem;
  background: var(--border);
}
.results-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .8rem;
  margin: -.75rem 0 1.5rem;
  padding: .5rem .75rem;
  border: 1px solid var(--border-soft);
  border-radius: .75rem;
  background: var(--surface);
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-muted);
}
.results-bar[hidden] { display: none !important; }
#results-status { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.results-bar .btn { flex-shrink: 0; }
@media (max-width: 900px) {
  .filter-dock { flex-wrap: wrap; }
  .dock-search { flex: 1 1 100%; min-width: 0; }
  .dock-chips { flex: 1 1 100%; }
}

/* ---------------- FAQ ---------------- */
.faq-toolbar {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  margin: var(--sp-5) 0 var(--sp-3);
  flex-wrap: wrap;
}
.faq-search { position: relative; display: flex; align-items: center; flex: 1 1 16rem; }
.faq-search .search-icon {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: .8rem;
  color: var(--text-faint);
  pointer-events: none;
}
.faq-search input[type='search'] {
  width: 100%;
  padding: .6rem 1rem .6rem 2.65rem;
  border-radius: var(--r-pill);
  font-size: 12px;
}
.faq-search input::placeholder { color: var(--text-faint); opacity: 1; }
.faq-search:focus-within .search-icon { color: var(--primary); }
.faq-section[hidden] { display: none; }
.faq-section .section-head { margin-bottom: var(--sp-3); }
.faq-item { margin-top: var(--sp-2); }
.faq-item[hidden] { display: none; }
.faq-item > summary { font-weight: 600; }
.faq-q { padding-right: var(--sp-3); }
.faq-a > *:first-child { margin-top: 0; }
.faq-a > *:last-child { margin-bottom: 0; }
.faq-a ul { margin: 0; padding-left: 1.2rem; }
.faq-a li + li { margin-top: .3rem; }

/* ---------------- Section heads & Swiss tool cards ---------------- */
.section-head {
  display: flex;
  align-items: center;
  gap: .5rem;
  margin: 2rem 0 1rem;
  scroll-margin-top: var(--dock-top);
}
.section-head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: -.02em;
}
.section-head .count {
  color: var(--text-faint);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .02em;
}
.section-head .cat-icon { color: var(--primary); font-size: .9rem; }
.section-blurb {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-faint);
  letter-spacing: .01em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 62ch;
}
@media (max-width: 900px) { .section-blurb { display: none; } }

#tool-sections { counter-reset: cat; }
#tool-sections .cat-section { counter-increment: cat; }
#tool-sections .cat-section + .cat-section { margin-top: 2.5rem; }
#tool-sections .cat-section .section-head {
  padding-bottom: .55rem;
  border-bottom: 1px solid var(--border-soft);
}
#tool-sections .cat-section .section-head .cat-icon {
  order: 0;
  width: 8px;
  height: 8px;
  flex: 0 0 auto;
  align-self: center;
  border-radius: 2px;
  background: var(--cat-accent, var(--primary));
  color: transparent;
  font-size: 0;
}
#tool-sections .cat-section .section-head::before {
  content: counter(cat, decimal-leading-zero);
  order: 1;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  color: var(--text-faint);
  letter-spacing: .02em;
}
#tool-sections .cat-section .section-head h2 { order: 2; }
#tool-sections .cat-section .section-head .count { order: 3; }
#tool-sections .cat-section .section-blurb { order: 4; }

.tool-grid { display: grid; gap: .75rem; grid-template-columns: repeat(2, minmax(0, 1fr)); }
@media (min-width: 1024px) {
  .tool-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  #tool-sections .cat-section[data-category='financial'] .tool-grid {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
}
@media (max-width: 767px) { .tool-grid { grid-template-columns: 1fr; } }

.tool-card {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: .55rem;
  padding: 1rem;
  border: 1px solid var(--border-soft);
  border-radius: 1rem;
  background: linear-gradient(180deg, var(--surface-2), var(--surface));
  color: var(--text);
  overflow: hidden;
  transition: border-color var(--t-mid), background var(--t-mid), box-shadow var(--t-mid);
}
.tool-card::before {
  content: '';
  position: absolute;
  inset: -55% -15% auto;
  height: 160px;
  background: radial-gradient(circle at 50% 0, var(--cat-soft, var(--primary-soft)), transparent 70%);
  opacity: 0;
  transition: opacity var(--t-mid);
  pointer-events: none;
}
.tool-card:hover {
  border-color: var(--cat-accent, var(--primary));
  background: linear-gradient(180deg, var(--surface-3), var(--surface));
  box-shadow: var(--shadow-sm);
  color: var(--text);
}
.tool-card:hover::before { opacity: .6; }
.tool-card:hover .tool-card-icon { border-color: var(--cat-accent, var(--primary)); }
.tool-card-icon {
  flex-shrink: 0;
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: .5rem;
  border: 1px solid var(--border-soft);
  background: var(--cat-soft, var(--primary-soft));
  color: var(--cat-accent, var(--primary));
  font-size: .85rem;
  transition: border-color var(--t-mid);
}
.tool-card h3 {
  font-family: var(--font-display);
  font-size: .875rem;
  font-weight: 600;
  margin: 0 0 .2rem;
  letter-spacing: -.01em;
  line-height: 1.3;
}
.tool-card p {
  margin: 0;
  font-size: .75rem;
  color: var(--text-muted);
  line-height: 1.45;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.tool-card-body { width: 100%; min-width: 0; }

.fav-star {
  position: absolute;
  top: .55rem;
  right: .55rem;
  width: 27px;
  height: 27px;
  display: grid;
  place-items: center;
  border: none;
  background: transparent;
  color: var(--text-faint);
  border-radius: var(--r-xs);
  cursor: pointer;
  opacity: 0;
  transition: opacity var(--t-fast), color var(--t-fast), transform var(--t-fast);
}
.tool-card:hover .fav-star, .fav-star.is-fav, .fav-star:focus-visible { opacity: 1; }
.fav-star:hover { color: var(--warning); transform: scale(1.12); }
.fav-star.is-fav { color: var(--warning); }
@media (hover: none) { .fav-star { opacity: 1; } }

.empty-state {
  text-align: center;
  padding: var(--sp-7) var(--sp-4);
  color: var(--text-muted);
  border: 1px dashed var(--border);
  border-radius: var(--r-lg);
}
.empty-state i { font-size: 1.6rem; color: var(--text-faint); margin-bottom: .6rem; display: block; }
.empty-state h3 { margin-bottom: .3rem; }

/* ---------------- Chips (generic; currency/quick picks) ---------------- */
.chip-row { display: flex; flex-wrap: wrap; gap: .4rem; margin-bottom: var(--sp-5); }
.chips { display: flex; flex-wrap: wrap; gap: .4rem; }
.chip {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  padding: .35rem .8rem;
  border-radius: var(--r-pill);
  border: 1px solid var(--border-soft);
  background: var(--surface-2);
  color: var(--text-muted);
  font: 600 10.5px/1.4 var(--font-mono);
  cursor: pointer;
  transition: color var(--t-fast), background var(--t-fast), border-color var(--t-fast);
}
.chip:hover { border-color: var(--border); color: var(--text); }
.chip.is-active { background: var(--primary); border-color: var(--primary); color: var(--on-primary); }

/* ---------------- Tool page ---------------- */
.breadcrumb {
  display: flex;
  gap: .4rem;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: .02em;
  color: var(--text-faint);
  margin-bottom: var(--sp-3);
  flex-wrap: wrap;
}
.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--primary); }

.tool-head {
  display: flex;
  align-items: flex-start;
  gap: var(--sp-4);
  margin-bottom: var(--sp-5);
  padding-bottom: var(--sp-4);
  border-bottom: 1px solid var(--border-soft);
}
.tool-head-main { flex: 1; min-width: 0; }
.tool-head h1 {
  font-size: clamp(1.5rem, 4vw, 2.05rem);
  font-weight: 800;
  letter-spacing: -.035em;
  margin-bottom: .35rem;
}
.tool-desc { color: var(--text-muted); margin: 0; max-width: 70ch; font-size: 13px; }
.tool-head-actions { display: flex; gap: .4rem; }

.how-it-works {
  margin-top: var(--sp-5);
  border: 1px solid var(--border-soft);
  border-radius: var(--r-md);
  background: var(--surface);
  overflow: hidden;
}
.how-it-works > summary {
  padding: .9rem var(--sp-4);
  cursor: pointer;
  font-weight: 700;
  font-size: 12px;
  color: var(--text);
  list-style: none;
  display: flex;
  align-items: center;
  gap: .5rem;
}
.how-it-works > summary::-webkit-details-marker { display: none; }
.how-it-works > summary::after {
  content: '\f078';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  margin-left: auto;
  font-size: .65rem;
  color: var(--text-faint);
  transition: transform var(--t-fast);
}
.how-it-works[open] > summary::after { transform: rotate(180deg); }
.how-body { padding: 0 var(--sp-4) var(--sp-4); color: var(--text-muted); font-size: 12.5px; }
.how-body h4 { color: var(--text); margin: var(--sp-3) 0 .3rem; font-size: 12.5px; }
.formula {
  display: block;
  font-family: var(--font-mono);
  background: var(--bg);
  border: 1px solid var(--border-soft);
  border-left: 3px solid var(--primary);
  padding: .6rem .8rem;
  border-radius: var(--r-sm);
  margin: .5rem 0;
  color: var(--text);
  font-size: 11.5px;
  overflow-x: auto;
  white-space: pre-wrap;
}
.related { margin-top: var(--sp-6); }

/* Keypad tools read better in a centred instrument panel. */
.tool-body:has(.calc-shell) { max-width: 660px; margin-left: auto; margin-right: auto; }
.tool-page:has(.calc-shell) .result-panel { max-width: 660px; margin-left: auto; margin-right: auto; }

/* ---------------- Converter row (unified pattern) ---------------- */
.conv-row {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: var(--sp-3);
  /* `stretch`, not `end`: the two sides then share one baseline for their
     labels and one for their inputs. With `end` alignment the generic
     `.field:last-child { margin-bottom: 0 }` rule applied to only the right
     column, which shunted the left column up by exactly that margin and left
     the two boxes visibly out of line. */
  align-items: stretch;
}
/* Both columns must contribute the same box, so neither side can drift. */
.conv-row > .field { margin-bottom: 0; }

.swap-btn {
  width: 44px; height: 44px;
  border-radius: 50%;
  display: grid; place-items: center;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--primary);
  cursor: pointer;
  /* Centre the ⇄ on the controls, not on the whole column. Each field is
     `label + gap + control(s)`, so the control block's midline sits half a
     label-block below the column's midline; nudging down by that much lands the
     button on the controls for any control height (a tall textarea, or an
     input stacked over a select).
     `position/top` rather than a margin: a margin is part of the layout box and
     would make the button the tallest grid item on short controls, stretching
     the row and throwing the centring off again. `top` never affects layout.
     Not `transform` either — that is already used for the hover/spin states. */
  align-self: center;
  position: relative;
  top: calc((var(--fs-sm) * 1.6 + .35rem) / 2);
  transition: transform var(--t-mid), background var(--t-fast), border-color var(--t-fast);
}

/* When each field also carries a hint *below* its control, that hint balances
   the label above it and the column midline already lands on the controls, so
   the compensation must be dropped (Roman Numerals is the case in point).
   If a browser lacks :has(), the offset simply stays and that one tool sits a
   few pixels low — a graceful degradation, not a break. */
.conv-row:has(> .field > .field-hint:last-child) .swap-btn { top: 0; }
.swap-btn:hover { background: var(--primary-soft); border-color: var(--primary); }
.swap-btn.is-spinning { transform: rotate(180deg); }
@media (max-width: 720px) {
  .conv-row { grid-template-columns: 1fr; }
  /* Stacked layout: the button sits in its own row between the two fields, so
     the label-compensating offset from the desktop rule no longer applies. */
  .swap-btn { justify-self: center; top: 0; transform: rotate(90deg); }
  .swap-btn.is-spinning { transform: rotate(270deg); }
}

.conv-value { font-family: var(--font-mono); font-size: var(--fs-md); font-weight: 600; }

.all-units { margin-top: var(--sp-4); }
.unit-list { display: grid; gap: .4rem; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); }
.unit-item {
  display: flex; justify-content: space-between; gap: .5rem;
  padding: .5rem .7rem;
  background: var(--surface-2);
  border: 1px solid var(--border-soft);
  border-radius: var(--r-sm);
  font-size: var(--fs-sm);
  cursor: pointer;
  transition: border-color var(--t-fast), background var(--t-fast);
}
.unit-item:hover { border-color: var(--primary); }
.unit-item .u-name { color: var(--text-muted); }
.unit-item .u-val { font-family: var(--font-mono); font-weight: 600; color: var(--text); text-align: right; word-break: break-all; }

/* ---------------- Calculator keypad ---------------- */
.calc-shell { max-width: 420px; margin: 0 auto; }
.calc-shell.wide { max-width: 620px; }
.calc-display {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: var(--sp-4);
  text-align: right;
  margin-bottom: var(--sp-4);
  min-height: 96px;
  display: flex; flex-direction: column; justify-content: flex-end;
}
.calc-expr {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--text-faint);
  min-height: 1.2em;
  word-break: break-all;
  font-variant-numeric: tabular-nums;
}
.calc-current {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 6vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -.03em;
  word-break: break-all;
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
}
.keypad { display: grid; gap: .45rem; grid-template-columns: repeat(4, 1fr); }
.keypad.sci { grid-template-columns: repeat(5, 1fr); }
.key {
  min-height: 50px;
  padding: .9rem .4rem;
  border-radius: 10px;
  border: 1px solid var(--border-soft);
  background: linear-gradient(180deg, var(--surface-2), var(--surface));
  color: var(--text);
  font: 600 15px/1 var(--font-mono);
  font-variant-numeric: tabular-nums;
  cursor: pointer;
  transition: background var(--t-fast), transform var(--t-fast), border-color var(--t-fast);
}
.key:hover { background: var(--surface-3); border-color: var(--border); }
.key:active, .key.is-pressed {
  transform: translateY(1px) scale(.99);
  background: var(--primary-soft);
  border-color: var(--primary);
}
.key-op { color: var(--primary); font-weight: 700; }
.key-fn { font-size: var(--fs-sm); color: var(--text-muted); }
.key-eq {
  background: var(--button-bg);
  color: var(--button-text);
  border-color: transparent;
  box-shadow: 0 10px 24px -14px var(--button-bg);
}
.key-eq:hover, .key-eq:active, .key-eq.is-pressed {
  background: var(--button-bg);
  color: var(--button-text);
  filter: brightness(1.08);
  border-color: transparent;
}
.key-wide { grid-column: span 2; }
.key-danger { color: var(--danger); }
.keypad.sci .key { padding: .75rem .3rem; font-size: var(--fs-sm); }

/* ---------------- Color tool ---------------- */
.swatch {
  height: 130px;
  border-radius: var(--r-md);
  border: 1px solid var(--border);
  display: grid; place-items: center;
  font-family: var(--font-mono);
  font-weight: 700;
  transition: background var(--t-mid);
}
.color-grid { display: grid; gap: var(--sp-3); grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }

/* ---------------- Misc ---------------- */
.toast {
  position: fixed;
  left: 50%;
  bottom: 28px;
  transform: translate(-50%, 16px);
  background: var(--glass-strong);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  color: var(--text);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-lg);
  border-radius: var(--r-pill);
  padding: .62rem 1.05rem;
  font-size: 12px;
  font-weight: 600;
  z-index: 200;
  opacity: 0;
  transition: opacity var(--t-mid), transform var(--t-mid);
  display: flex; align-items: center; gap: .5rem;
}
.toast.is-visible { opacity: 1; transform: translate(-50%, 0); }
.toast i { color: var(--accent); }

.alert {
  display: flex; gap: .6rem; align-items: flex-start;
  padding: .7rem .9rem;
  border-radius: var(--r-sm);
  font-size: 12px;
  border: 1px solid var(--border-soft);
  background: var(--surface-2);
  color: var(--text-muted);
}
.alert i { margin-top: .15rem; }
.alert-warn { border-color: rgba(251, 191, 36, .35); background: rgba(251, 191, 36, .08); color: var(--warning); }
.alert-error { border-color: rgba(251, 113, 133, .35); background: rgba(251, 113, 133, .08); color: var(--danger); }
.alert-info { border-color: rgba(125, 208, 255, .3); background: rgba(125, 208, 255, .08); color: var(--info); }
.alert-success { border-color: rgba(52, 211, 153, .32); background: rgba(52, 211, 153, .08); color: var(--success); }
.alert-warning { border-color: rgba(251, 191, 36, .35); background: rgba(251, 191, 36, .08); color: var(--warning); }
.alert-danger { border-color: rgba(251, 113, 133, .35); background: rgba(251, 113, 133, .08); color: var(--danger); }

.skeleton {
  background: linear-gradient(90deg, var(--surface-2) 25%, var(--surface-3) 37%, var(--surface-2) 63%);
  background-size: 400% 100%;
  animation: shimmer 1.3s ease infinite;
  border-radius: var(--r-sm);
  height: 14px;
}
@keyframes shimmer { 0% { background-position: 100% 0; } 100% { background-position: 0 0; } }

.divider { height: 1px; background: var(--border-soft); margin: var(--sp-4) 0; border: 0; }
.text-muted { color: var(--text-muted); }
.text-faint { color: var(--text-faint); }
.text-center { text-align: center; }
.mt-0 { margin-top: 0; } .mt-3 { margin-top: var(--sp-3); } .mt-4 { margin-top: var(--sp-4); }
.mt-5 { margin-top: var(--sp-5); }
.mb-0 { margin-bottom: 0; } .mb-3 { margin-bottom: var(--sp-3); }
.nowrap { white-space: nowrap; }
.spin { animation: spin 1s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.list-item {
  display: flex; align-items: center; gap: .8rem;
  padding: .75rem var(--sp-4);
  border: 1px solid var(--border-soft);
  border-radius: var(--r-md);
  background: var(--surface);
  margin-bottom: .5rem;
}
.list-item-main { flex: 1; min-width: 0; }
.list-item-main strong { display: block; font-size: 12.5px; }
.list-item-main span { font-size: 11px; color: var(--text-muted); word-break: break-word; }
.list-item time { font-size: 10px; font-family: var(--font-mono); color: var(--text-faint); white-space: nowrap; }

/* Numeric readouts stay tabular everywhere */
input[type='number'], .conv-value, .calc-current, .calc-expr, .stat-value,
.unit-item .u-val, .data-table td.num, .lab-tile strong, .lab-amount,
.lab-result-main, .lab-result-sub, .lab-split-value, .lab-base-input,
.lab-score, .hero-stat strong, .chip-count {
  font-variant-numeric: tabular-nums;
}

/* ---------------- Preview lab responsive ---------------- */
@media (max-width: 760px) {
  .lab-head { flex-direction: column; align-items: flex-start; gap: .3rem; }
  .filter-dock { top: calc(var(--header-h) + .35rem); border-radius: 14px; }
}