/* ============================================================
   tools.css — shared chrome for every /tools/*.php page
   Brought out of age-calculator.php so each new tool only
   needs to declare widget-specific overrides.
============================================================ */

:root {
  --paper:       #FAF8F3;
  --paper-warm:  #F2EDE0;
  --ink:         #2A1A14;
  --ink-strong:  #1a0e08;
  --ink-soft:    #4a3a32;
  --ink-muted:   #6f5d52;
  --stamp:       #1E3A5F;
  --link: #1B53E8;
  --link-hover: #0F47D4;
  --rule:        #C9B89F;
  --rule-soft:   #E3D5BD;
  --green:       #15803d;
  --green-bg:    #E6F4EA;
  --amber:       #B45309;
  --amber-bg:    #FEF5E1;
  --serif: 'Roboto', system-ui, sans-serif;
  --sans:  'Roboto', system-ui, sans-serif;
  --mono:  'Roboto Mono', monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

main { max-width: 720px; margin: 0 auto; padding: 22px 24px 60px; }

/* ---------- Breadcrumb ---------- */
.crumbs {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin: 0 0 16px;
}
.crumbs a { color: var(--ink-muted); text-decoration: none; }
.crumbs a:hover { color: var(--link); }
.crumbs span { color: var(--ink-strong); }

/* ---------- Hero ---------- */
.tool-hero {
  background: #FFFFFF;
  border: 1px solid var(--rule-soft);
  border-radius: 12px;
  padding: 26px 28px;
  margin-bottom: 18px;
}
.tool-eyebrow {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin: 0 0 8px;
}
.tool-title {
  font-family: var(--serif);
  font-size: 26px;
  font-weight: 700;
  color: var(--ink-strong);
  letter-spacing: -0.015em;
  line-height: 1.2;
  margin: 0 0 10px;
}
.tool-lede {
  font-size: 14.5px;
  color: var(--ink-soft);
  margin: 0;
  line-height: 1.6;
}

/* ---------- Widget container ---------- */
.widget {
  background: var(--paper-warm);
  border: 1px solid var(--rule-soft);
  border-radius: 12px;
  padding: 22px 24px;
  margin-bottom: 22px;
}
.field-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-bottom: 14px;
}
@media (max-width: 480px) {
  .field-grid { grid-template-columns: 1fr; }
}

/* ---------- Form fields (shared across all tools) ---------- */
.field { display: block; margin-bottom: 12px; }
.field label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--ink-strong);
  margin-bottom: 5px;
  letter-spacing: 0.02em;
}
.field input[type="date"],
.field input[type="number"],
.field input[type="text"],
.field input[type="email"],
.field select,
.widget input[type="date"],
.widget input[type="number"],
.widget input[type="text"],
.widget input[type="email"],
.widget select {
  width: 100%;
  padding: 10px 12px;
  font-family: var(--sans);
  font-size: 14.5px;
  color: var(--ink-strong);
  background: #FFFFFF;
  border: 1px solid var(--rule);
  border-radius: 6px;
  outline: none;
  transition: border-color 0.12s ease, box-shadow 0.12s ease;
}
.field input:focus,
.field select:focus,
.widget input:focus,
.widget select:focus {
  border-color: var(--stamp);
  box-shadow: 0 0 0 3px rgba(30, 58, 95, 0.12);
}
.widget input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 4px;
  background: var(--rule);
  border-radius: 2px;
  margin: 8px 0 0;
  outline: none;
}
.widget input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px; height: 18px;
  background: var(--stamp);
  border-radius: 50%;
  cursor: pointer;
  border: 2px solid #FFFFFF;
  box-shadow: 0 1px 3px rgba(0,0,0,0.15);
}
.widget input[type="range"]::-moz-range-thumb {
  width: 18px; height: 18px;
  background: var(--stamp);
  border-radius: 50%;
  cursor: pointer;
  border: 2px solid #FFFFFF;
}

/* ---------- Radio pills (used by age, BMI, etc.) ---------- */
.radio-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}
.radio-pill {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  background: #FFFFFF;
  border: 1px solid var(--rule);
  border-radius: 18px;
  font-size: 12.5px;
  font-weight: 500;
  color: var(--ink-soft);
  cursor: pointer;
  transition: all 0.12s ease;
}
.radio-pill input { position: absolute; opacity: 0; pointer-events: none; }
.radio-pill:has(input:checked) {
  background: var(--stamp);
  border-color: var(--stamp);
  color: #FFFFFF;
}
.radio-pill:hover:not(:has(input:checked)) {
  border-color: var(--stamp);
  color: var(--stamp);
}

/* ---------- Quick-preset chips (used by EMI, Interest, Salary) ---------- */
.preset-chip-group {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 8px;
}
.preset-chip {
  font-family: var(--sans);
  font-size: 11.5px;
  font-weight: 600;
  padding: 5px 12px;
  background: #FFFFFF;
  border: 1px solid var(--rule);
  border-radius: 14px;
  color: var(--ink-soft);
  cursor: pointer;
  transition: all 0.12s ease;
}
.preset-chip:hover,
.preset-chip.is-active {
  border-color: var(--stamp);
  background: rgba(30, 58, 95, 0.06);
  color: var(--stamp);
}

/* ---------- Tabs (used by percentage calculator) ---------- */
.tab-group {
  display: flex;
  gap: 2px;
  margin: 0 0 -1px;
  position: relative;
  z-index: 1;
}
.tab-btn {
  padding: 9px 14px;
  font-family: var(--sans);
  font-size: 12.5px;
  font-weight: 600;
  background: #FFFFFF;
  border: 1px solid var(--rule);
  border-bottom-color: transparent;
  border-radius: 8px 8px 0 0;
  color: var(--ink-soft);
  cursor: pointer;
  transition: color 0.12s ease;
}
.tab-btn:hover { color: var(--link); }
.tab-btn.is-active {
  background: var(--stamp);
  border-color: var(--stamp);
  color: #FFFFFF;
}
.tab-panel {
  background: #FFFFFF;
  border: 1px solid var(--rule);
  border-radius: 0 8px 8px 8px;
  padding: 18px;
}

/* ---------- Calculate button ---------- */
.calc-btn {
  width: 100%;
  padding: 12px 20px;
  font-family: var(--sans);
  font-size: 14.5px;
  font-weight: 700;
  color: #FFFFFF;
  background: var(--stamp);
  border: 1px solid var(--stamp);
  border-radius: 8px;
  cursor: pointer;
  letter-spacing: 0.02em;
  transition: background 0.12s ease;
}
.calc-btn:hover { background: #132842; }

/* Small secondary button (add subject, add semester, remove row, etc.) */
.calc-btn-sm {
  font-family: var(--sans);
  font-size: 12px;
  font-weight: 600;
  padding: 6px 12px;
  background: #FFFFFF;
  border: 1px dashed var(--rule);
  border-radius: 6px;
  color: var(--ink-soft);
  cursor: pointer;
  transition: all 0.12s ease;
}
.calc-btn-sm:hover {
  border-style: solid;
  border-color: var(--stamp);
  color: var(--stamp);
}
.row-remove-btn {
  background: rgba(30, 58, 95, 0.08);
  border: none;
  color: var(--stamp);
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 12px;
  cursor: pointer;
  font-weight: 600;
}

/* ---------- Result panel ---------- */
.result {
  display: none;
  margin-top: 18px;
  background: #FFFFFF;
  border: 1px solid var(--rule-soft);
  border-radius: 10px;
  padding: 18px 20px;
}
.result.is-visible { display: block; }
.result-headline {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 700;
  color: var(--stamp);
  letter-spacing: -0.01em;
  margin: 0 0 4px;
}
.result-sub {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin: 0 0 14px;
}
.result-table-wrap { overflow-x: auto; margin: 0 -4px; padding: 0 4px; }
.result-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.result-table th, .result-table td {
  padding: 8px 10px;
  border: 1px solid var(--rule-soft);
  text-align: left;
}
.result-table th {
  background: var(--paper-warm);
  font-weight: 600;
  color: var(--ink-strong);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.result-table td.is-center,
.result-table th.is-center { text-align: center; }
.result-table td.is-right,
.result-table th.is-right { text-align: right; }
.result-table tr.is-zebra { background: var(--paper-warm); }
.result-table tr.is-emphasis td {
  background: var(--stamp);
  color: #FFFFFF;
  font-weight: 700;
}
.result-table tr.is-highlight td {
  background: var(--green-bg);
  font-weight: 600;
}
.yes-badge { color: var(--green); font-weight: 700; }
.no-badge  { color: var(--stamp); font-weight: 600; }
.result-fineprint {
  margin: 10px 0 0;
  font-size: 11.5px;
  color: var(--ink-muted);
  line-height: 1.5;
}

/* ---------- Big-number tiles (EMI, Interest results) ---------- */
.metric-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 10px;
  margin-bottom: 14px;
}
.metric-tile {
  padding: 14px 12px;
  border-radius: 10px;
  color: #FFFFFF;
  text-align: center;
}
.metric-tile.is-primary { background: var(--stamp); }
.metric-tile.is-green   { background: var(--green); }
.metric-tile.is-amber   { background: var(--amber); }
.metric-tile.is-ink     { background: var(--ink-strong); }
.metric-tile .metric-value {
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 2px;
  line-height: 1.2;
}
.metric-tile .metric-label {
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  opacity: 0.85;
}

/* Schedule (year-wise tables inside <details>) */
.schedule-toggle {
  margin-top: 12px;
  cursor: pointer;
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 600;
  color: var(--stamp);
  padding: 8px 0;
}

/* ---------- Content sections ---------- */
.content-card {
  background: #FFFFFF;
  border: 1px solid var(--rule-soft);
  border-radius: 12px;
  padding: 22px 24px;
  margin-bottom: 18px;
}
.content-card h2 {
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 700;
  color: var(--ink-strong);
  margin: 0 0 8px;
}
.content-card p {
  font-size: 14px;
  color: var(--ink-soft);
  line-height: 1.65;
  margin: 0 0 10px;
}
.content-card p:last-child { margin-bottom: 0; }
.content-card strong { color: var(--ink-strong); font-weight: 600; }
.content-card a { color: var(--link); text-decoration: underline; text-underline-offset: 2px; }

/* ---------- FAQ ---------- */
.faq-card {
  background: #FFFFFF;
  border: 1px solid var(--rule-soft);
  border-radius: 12px;
  padding: 22px 24px;
  margin-bottom: 18px;
}
.faq-card h2 {
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 700;
  color: var(--ink-strong);
  margin: 0 0 14px;
}
.faq-item { border-bottom: 1px solid var(--rule-soft); }
.faq-item:last-child { border-bottom: none; }
.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 14px 0;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--ink-strong);
  position: relative;
  padding-right: 24px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '+';
  position: absolute;
  right: 0;
  top: 13px;
  font-size: 18px;
  color: var(--ink-muted);
  transition: transform 0.15s ease;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item .faq-answer {
  padding: 0 0 14px;
  font-size: 13.5px;
  color: var(--ink-soft);
  line-height: 1.65;
}

/* ---------- Related tools ---------- */
.related-card {
  background: var(--paper-warm);
  border: 1px solid var(--rule-soft);
  border-radius: 12px;
  padding: 18px 20px;
  margin-bottom: 18px;
}
.related-card h2 {
  font-family: var(--serif);
  font-size: 16px;
  font-weight: 700;
  color: var(--ink-strong);
  margin: 0 0 12px;
}
.related-list {
  list-style: none;
  margin: 0; padding: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}
@media (max-width: 480px) { .related-list { grid-template-columns: 1fr; } }
.related-list a {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  background: #FFFFFF;
  border: 1px solid var(--rule-soft);
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--ink-strong);
  text-decoration: none;
  transition: border-color 0.12s ease, color 0.12s ease;
}
.related-list a:hover {
  border-color: var(--stamp);
  color: var(--stamp);
}
.related-icon {
  width: 24px; height: 24px;
  background: var(--paper-warm);
  border-radius: 5px;
  display: flex; align-items: center; justify-content: center;
  font-size: 14px;
  flex-shrink: 0;
}

/* ---------- Mobile overrides ---------- */
@media (max-width: 720px) {
  main { padding: 18px 16px 80px; }
  .tool-hero, .widget, .content-card, .faq-card { padding: 20px; }
  .tool-title { font-size: 22px; }
}