/* ==========================================================================
   108 Tools — tool.css
   Loaded ONLY by the pages in /tools/. style.css loads first and owns the
   tokens; this file never invents a colour of its own.

   Design rule for every tool page: the page is calm. The homepage is allowed
   to be loud, a tool is not. Someone landed here to do one job, so the
   workspace stays quiet and the only strong colour is the primary button.
   ========================================================================== */

/* ---- Breadcrumb --------------------------------------------------------- */
.crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--s1);
  font-size: .875rem;
  color: var(--text-soft);
  margin-bottom: var(--s5);
}
.crumbs a { color: var(--text-soft); font-weight: 500; }
.crumbs a:hover { color: var(--primary); }
.crumbs span { margin: 0 var(--s1); opacity: .6; }

/* ---- Tool heading ------------------------------------------------------- */
.tool-head { margin-bottom: var(--s6); }
.tool-head h1 {
  font-size: clamp(1.75rem, 4.5vw, 2.5rem);
  letter-spacing: -.03em;
  margin-bottom: var(--s3);
}
.tool-head p {
  color: var(--text-soft);
  font-size: 1.0625rem;
  margin: 0;
  max-width: 44rem;
}

/* ---- The two-panel workspace -------------------------------------------- */
.workspace {
  display: grid;
  grid-template-columns: 1fr;     /* mobile: stacked */
  gap: var(--s4);
  margin-bottom: var(--s8);
}
@media (min-width: 900px) {
  .workspace--split { grid-template-columns: 1fr 1fr; }
  .workspace--wide  { grid-template-columns: 1.4fr 1fr; }
}

.panel {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  box-shadow: var(--sh1);
  padding: var(--s5);
}
.panel__label {
  display: block;
  font-size: .75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .09em;
  color: var(--text-soft);
  margin-bottom: var(--s3);
}

/* ---- Form controls ------------------------------------------------------ */
.field { margin-bottom: var(--s4); }
.field:last-child { margin-bottom: 0; }
.field label {
  display: block;
  font-size: .9375rem;
  font-weight: 600;
  margin-bottom: var(--s2);
}
.hint { font-size: .8125rem; color: var(--text-soft); margin: var(--s2) 0 0; }

textarea,
input[type="text"], input[type="number"], input[type="date"], select {
  width: 100%;
  font: inherit;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border-strong);
  border-radius: var(--r-sm);
  padding: var(--s3);
  min-height: 46px;
  transition: border-color .15s, box-shadow .15s;
}
textarea {
  min-height: 240px;
  resize: vertical;
  line-height: 1.65;
}
textarea.mono, .out.mono { font-family: var(--font-mono); font-size: .875rem; }

textarea:focus, input:focus, select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 4px var(--primary-soft);
}

/* Range slider */
input[type="range"] {
  width: 100%;
  accent-color: var(--primary);   /* one line = styled slider in all modern browsers */
  height: 44px;
}

/* Checkbox rows */
.check {
  display: flex;
  align-items: center;
  gap: var(--s3);
  min-height: 42px;
  font-size: .9375rem;
}
.check input { width: 18px; height: 18px; accent-color: var(--primary); margin: 0; flex: none; }
.check label { cursor: pointer; }
/* A disabled option must LOOK disabled, or people keep clicking it */
.check input:disabled + label { opacity: .45; cursor: not-allowed; }

/* ---- Stat tiles (the output of counters/calculators) -------------------- */
.stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--s2);
}
.stats--3 { grid-template-columns: repeat(3, 1fr); }
.stat {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  padding: var(--s3);
  text-align: center;
}
.stat__num {
  display: block;
  font-size: 1.5rem;
  font-weight: 750;
  letter-spacing: -.03em;
  line-height: 1.15;
  font-variant-numeric: tabular-nums;
  color: var(--text);
}
.stat__label {
  display: block;
  font-size: .75rem;
  color: var(--text-soft);
  margin-top: 2px;
}

/* The single big answer, for calculators that have exactly one */
.result {
  background: linear-gradient(135deg, var(--primary-soft), transparent 70%);
  border: 1px solid color-mix(in srgb, var(--primary) 22%, transparent);
  border-radius: var(--r-md);
  padding: var(--s5);
  text-align: center;
  margin-bottom: var(--s4);
}
.result__num {
  display: block;
  font-size: clamp(2rem, 6vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -.035em;
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
  color: var(--primary);
}
.result__label { font-size: .875rem; color: var(--text-soft); }

/* Read-only output box */
.out {
  min-height: 240px;
  max-height: 480px;
  overflow: auto;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  padding: var(--s4);
  margin: 0;
  font-size: .9375rem;
  line-height: 1.65;
  white-space: pre-wrap;
  word-break: break-word;
}

/* Status messages */
.msg { font-size: .9375rem; font-weight: 500; margin-top: var(--s3); }
.msg--ok   { color: var(--success); }
.msg--bad  { color: var(--danger); }

/* ---- File drop zone (image tools) -------------------------------------- */
/* display:block is NOT optional here. A <label> is display:inline by default,
   so without it the dashed border breaks into fragments around the inline
   boxes, the block-level <p> children escape the box, and the whole thing
   collides with the panel heading above. */
.drop {
  display: block;
  border: 2px dashed var(--border-strong);
  border-radius: var(--r-md);
  background: var(--surface);
  padding: var(--s8) var(--s4);
  text-align: center;
  cursor: pointer;
  transition: border-color .18s, background .18s, transform .18s;
}
.drop:hover, .drop.is-over {
  border-color: var(--primary);
  background: var(--primary-soft);
  transform: translateY(-2px);
}
.drop__big { display: block; font-size: 2.5rem; line-height: 1; margin-bottom: var(--s3); }
.drop p { margin: 0; color: var(--text-soft); font-size: .9375rem; }
.drop input[type="file"] { display: none; }

.preview img {
  max-height: 280px;
  width: auto;
  margin: 0 auto var(--s4);
  border-radius: var(--r-sm);
  border: 1px solid var(--border);
  box-shadow: var(--sh1);
}

/* ---- Small data table (amortisation, key/value output) ----------------- */
.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
}
table.data {
  width: 100%;
  border-collapse: collapse;
  font-size: .875rem;
}
table.data th, table.data td {
  padding: var(--s3) var(--s4);
  border-bottom: 1px solid var(--border);
  text-align: right;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
table.data tr:last-child td { border-bottom: 0; }
table.data th {
  text-align: right;
  color: var(--text-soft);
  font-weight: 700;
  font-size: .75rem;
  text-transform: uppercase;
  letter-spacing: .06em;
  background: var(--surface);
  position: sticky;
  top: 0;
}
table.data th:first-child, table.data td:first-child { text-align: left; }
table.data tbody tr:hover td { background: var(--surface); }

/* ---- SEO content below the tool ---------------------------------------- */
.tool-info {
  border-top: 1px solid var(--border);
  padding-top: var(--s7);
}
.tool-info h2 { margin-top: var(--s7); }
.tool-info h2:first-child { margin-top: 0; }
.tool-info p { color: var(--text-soft); }

.faq {
  border-left: 3px solid var(--border);
  padding-left: var(--s4);
  margin-bottom: var(--s5);
  transition: border-color .15s;
}
.faq:hover { border-left-color: var(--primary); }
.faq h3 { margin-bottom: var(--s2); color: var(--text); }
.faq p  { color: var(--text-soft); margin: 0; }