/* tool-shared.css — shared styles for free tool pages */

/* ═══════════════════════════════════════════
   ToolPageHeader — reusable header component
   ═══════════════════════════════════════════ */

.tool-page-header {
  padding-top: var(--space-7);
  padding-bottom: var(--space-5);
}

/* ── Back link ── */
.tool-page-header__back {
  display: flex;
  width: fit-content;
  align-items: center;
  gap: 0.35em;
  font-size: 0.8rem;
  color: var(--text-3);
  text-decoration: none;
  transition: color 0.15s;
  margin-bottom: var(--space-3);
}

.tool-page-header__back:hover {
  color: var(--accent);
}

.tool-page-header__back svg {
  width: 14px;
  height: 14px;
}

/* ── Title row: H1 + bookmark pill inline ── */
.tool-page-header__title-row {
  display: flex;
  align-items: baseline;
  gap: 12px;
  flex-wrap: wrap;
}

.tool-page-header__title-row h1 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin: 0;
}

/* ── Bookmark pill (sits right next to title) ── */
.tool-page-header__bookmark {
  flex-shrink: 0;
  white-space: nowrap;
  font-size: 11px;
  color: var(--accent);
  background: rgba(126, 169, 164, 0.08);
  border: 1px solid rgba(126, 169, 164, 0.18);
  border-radius: 20px;
  padding: 4px 14px;
  letter-spacing: 0.01em;
  position: relative;
  top: -2px;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}

.tool-page-header__bookmark:hover {
  color: var(--accent-hover);
  background: rgba(126, 169, 164, 0.12);
  border-color: rgba(126, 169, 164, 0.3);
}

.tool-page-header__bookmark kbd {
  font-family: inherit;
  font-size: 11px;
  color: var(--accent);
  opacity: 0.8;
}

/* ── Subtitle ── */
.tool-page-header__subtitle {
  color: var(--text-2);
  font-size: 1rem;
  margin: var(--space-1) 0 0;
  max-width: 48rem;
  line-height: 1.5;
}

/* Extra meta text (e.g. "Last checked" on standards) */
.tool-page-header__meta {
  margin: var(--space-1) 0 0;
  font-size: 0.8rem;
  color: var(--text-3);
}

/* ── Responsive ── */
@media (max-width: 640px) {
  .tool-page-header__title-row {
    gap: 8px;
  }
}

/* ── Bookmark pill in centred hero (tools landing page) ── */
.tools-hero .tool-page-header__bookmark {
  display: inline-block;
  margin-bottom: 14px;
  top: 0;
}

/* (Legacy .tool-hero removed — all pages now use .tool-page-header) */

/* ── Tabs ── */
.tool-tabs {
  display: flex;
  gap: var(--space-2);
  overflow-x: auto;
  padding-block: var(--space-3);
  margin-bottom: var(--space-4);
  scrollbar-width: none;
}

.tool-tabs::-webkit-scrollbar { display: none; }

.tool-tab-btn {
  flex-shrink: 0;
  padding: 0.4rem 1rem;
  border-radius: 999px;
  border: 1px solid var(--border-subtle);
  background: transparent;
  color: var(--text-2);
  font-size: 0.875rem;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}

.tool-tab-btn:hover {
  color: var(--text-1);
  border-color: var(--text-3);
}

.tool-tab-btn.is-active {
  background: var(--accent);
  color: var(--accent-contrast);
  border-color: var(--accent);
  font-weight: 500;
}

.tool-tab-btn:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 2px;
}

.tool-tab-panel { display: block; }
.tool-tab-panel--hidden { display: none !important; }

/* ── Calculator Card ── */
.tool-card-calc {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 14px;
  padding: var(--space-5);
  margin-bottom: var(--space-5);
}

/* ── Input Groups ── */
.tool-input-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}

@media (max-width: 40em) {
  .tool-input-row {
    grid-template-columns: 1fr;
    gap: var(--space-3);
  }
}

.tool-input-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.tool-input-group--full {
  grid-column: 1 / -1;
}

.tool-label {
  font-size: 0.8rem;
  color: var(--text-3);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 500;
}

.tool-input {
  width: 100%;
  padding: 0.55rem 0.75rem;
  font-size: 1rem;
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  background: var(--bg-page);
  color: var(--text-1);
  transition: border-color 0.15s, box-shadow 0.15s;
  -moz-appearance: textfield;
}

.tool-input::-webkit-outer-spin-button,
.tool-input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.tool-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(126, 169, 164, 0.18);
  outline: none;
}

.tool-input::placeholder {
  color: var(--text-3);
}

.tool-select {
  width: 100%;
  padding: 0.55rem 0.75rem;
  font-size: 0.95rem;
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  background: var(--bg-page);
  color: var(--text-1);
  cursor: pointer;
  transition: border-color 0.15s;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M2 4l4 4 4-4' stroke='%23a7a39d' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  padding-right: 2rem;
}

.tool-select:focus {
  border-color: var(--accent);
  outline: none;
  box-shadow: 0 0 0 3px rgba(126, 169, 164, 0.18);
}

/* Input + select on same row */
.tool-input-with-unit {
  display: flex;
  gap: var(--space-2);
}

.tool-input-with-unit .tool-input {
  flex: 1;
  min-width: 0;
}

.tool-input-with-unit .tool-select {
  flex: 0 0 auto;
  width: auto;
  min-width: 100px;
}

/* ── Results ── */
.tool-results {
  background: var(--bg-section);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  padding: var(--space-4);
  margin-top: var(--space-4);
}

.tool-result-item {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: var(--space-2) 0;
  border-bottom: 1px solid var(--border-subtle);
}

.tool-result-item:last-child {
  border-bottom: none;
}

.tool-result-label {
  font-size: 0.85rem;
  color: var(--text-3);
}

.tool-result-value {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}

.tool-result-value--large {
  font-size: 1.4rem;
}

/* ── Pass/Fail indicator ── */
.tool-result-pass {
  color: #5DB88A;
  font-weight: 600;
}

.tool-result-fail {
  color: #DA9090;
  font-weight: 600;
}

/* ── Formula display ── */
.tool-formula {
  text-align: center;
  margin-top: var(--space-3);
  padding-top: var(--space-3);
  border-top: 1px solid var(--border-subtle);
  color: var(--text-3);
  font-size: 0.88rem;
  font-variant-numeric: tabular-nums;
}

.tool-formula code {
  color: var(--text-2);
  font-weight: 500;
  font-family: inherit;
}

/* ── Source citation ── */
.tool-source {
  font-size: 0.78rem;
  color: var(--text-3);
  margin: var(--space-2) 0 var(--space-3);
  font-style: italic;
  line-height: 1.4;
}

/* ── Reference Tables ── */
.tool-ref {
  margin-top: var(--space-5);
}

.tool-ref h2 {
  font-size: 1.15rem;
  margin-bottom: var(--space-3);
  color: var(--text-1);
}

.tool-ref-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
}

.tool-ref-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-surface);
  font-size: 0.88rem;
}

.tool-ref-table th,
.tool-ref-table td {
  text-align: left;
  padding: 0.55rem 0.75rem;
  border-bottom: 1px solid var(--border-subtle);
  white-space: nowrap;
}

.tool-ref-table th {
  font-weight: 600;
  font-size: 0.78rem;
  color: var(--text-3);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  background: var(--bg-section);
  position: sticky;
  top: 0;
  z-index: 1;
  cursor: pointer;
  user-select: none;
}

.tool-ref-table th:hover {
  color: var(--text-2);
}

.tool-ref-table td {
  color: var(--text-2);
  font-variant-numeric: tabular-nums;
}

.tool-ref-table tr:nth-child(even) td {
  background: rgba(255, 255, 255, 0.015);
}

.tool-ref-table tr:last-child td {
  border-bottom: none;
}

.tool-ref-table tr.is-highlight td {
  background: rgba(126, 169, 164, 0.12);
  color: var(--accent);
  font-weight: 500;
}

.tool-ref-table .is-active-row td {
  background: rgba(126, 169, 164, 0.1);
}

/* Numeric columns right-aligned */
.tool-ref-table .num {
  text-align: right;
  font-variant-numeric: tabular-nums;
}

/* ── Filter input ── */
.tool-filter {
  display: flex;
  gap: var(--space-3);
  align-items: center;
  margin-bottom: var(--space-3);
  flex-wrap: wrap;
}

.tool-filter-input {
  flex: 1;
  min-width: 200px;
  max-width: 320px;
  padding: 0.45rem 0.75rem;
  font-size: 0.88rem;
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  background: var(--bg-surface);
  color: var(--text-1);
  transition: border-color 0.15s;
}

.tool-filter-input:focus {
  border-color: var(--accent);
  outline: none;
  box-shadow: 0 0 0 3px rgba(126, 169, 164, 0.18);
}

.tool-filter-input::placeholder {
  color: var(--text-3);
}

/* ── Nearest size feature ── */
.tool-nearest {
  display: flex;
  gap: var(--space-2);
  align-items: center;
  flex-wrap: wrap;
}

.tool-nearest .tool-input {
  width: 120px;
  padding: 0.4rem 0.65rem;
  font-size: 0.88rem;
}

.tool-nearest-btn {
  padding: 0.4rem 0.75rem;
  font-size: 0.82rem;
  font-weight: 500;
  background: var(--accent);
  color: var(--accent-contrast);
  border: none;
  border-radius: 6px;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.15s;
}

.tool-nearest-btn:hover {
  background: var(--accent-hover);
}

/* ── Bottom CTA ── */
.tool-cta {
  text-align: center;
  padding: var(--space-6) var(--space-4);
  margin-top: var(--space-4);
  background: var(--bg-section);
  border-radius: 14px;
  border: 1px solid var(--border-subtle);
}

.tool-cta p {
  max-width: 42rem;
  margin: 0 auto var(--space-4);
  color: var(--text-2);
  font-size: 1rem;
  line-height: 1.55;
}

.tool-cta-buttons {
  display: flex;
  gap: var(--space-3);
  justify-content: center;
  flex-wrap: wrap;
}

/* ── Room dimensions row ── */
.tool-dims-row {
  display: flex;
  gap: var(--space-2);
  align-items: end;
}

.tool-dims-row .tool-input-group {
  flex: 1;
  min-width: 0;
}

.tool-dims-x {
  color: var(--text-3);
  font-size: 0.9rem;
  padding-bottom: 0.6rem;
}

/* ── Responsive ── */
@media (max-width: 40em) {
  .tool-card-calc {
    padding: var(--space-4) var(--space-3);
  }

  .tool-ref-table {
    font-size: 0.82rem;
  }

  .tool-ref-table th,
  .tool-ref-table td {
    padding: 0.45rem 0.55rem;
  }

  .tool-dims-row {
    flex-wrap: wrap;
  }
}

/* ── Print ── */
@media print {
  .tool-tabs,
  .tool-cta {
    display: none;
  }
}