/* ──────────────────────────────────────────────────────────────
   calculators.css — page-specific styles for /calculators
   References design tokens from style.css
   ────────────────────────────────────────────────────────────── */

/* ── Approved calculators (exam-grid) ───────────────────────── */
.exam-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 32px;
}
@media (max-width: 768px) {
  .exam-grid { grid-template-columns: 1fr; gap: 16px; }
}

.exam-card {
  background: #fff;
  border: 1.5px solid var(--line);
  border-radius: 16px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  transition: border-color .2s, transform .2s, box-shadow .2s;
}
.exam-card.ifoa { border-top: 3px solid var(--blue); }
.exam-card.iai  { border-top: 3px solid var(--orange); }
.exam-card:hover { border-color: var(--ink-3); box-shadow: 0 8px 24px rgba(0,0,0,.06); }

.ec-head {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}
.ec-badge {
  flex: 0 0 auto;
  width: 44px; height: 44px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  font-size: 1.1rem;
  color: #fff;
}
.ec-badge.blue   { background: var(--blue);   }
.ec-badge.orange { background: var(--orange); }
.ec-label {
  font-size: .68rem;
  font-weight: 800;
  letter-spacing: 1.5px;
  text-transform: uppercase;
}
.ec-label.blue   { color: var(--blue);   }
.ec-label.orange { color: var(--orange); }
.ec-model {
  margin-top: 4px;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--navy);
  letter-spacing: -.01em;
  line-height: 1.3;
}

.ec-body { display: flex; flex-direction: column; gap: 14px; }
.ec-price {
  font-size: .9rem;
  font-weight: 700;
  color: var(--navy);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.ec-price i { color: var(--orange); }
.ec-features {
  list-style: none;
  margin: 0; padding: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.ec-features li {
  position: relative;
  padding-left: 22px;
  font-size: .82rem;
  color: var(--ink-2);
  line-height: 1.55;
}
.ec-features li::before {
  content: "✓";
  position: absolute;
  left: 0;
  font-weight: 800;
  color: var(--blue);
}
.ec-features.orange li::before { color: var(--orange); }

.ec-why {
  background: var(--bg-2);
  border-radius: 12px;
  padding: 14px 16px;
}
.ec-why-head {
  font-size: .72rem;
  font-weight: 800;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--navy);
  margin-bottom: 8px;
}
.ec-why-item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: .82rem;
  color: var(--ink-2);
  line-height: 1.55;
  margin-top: 6px;
}
.ec-why-item i { color: var(--blue); margin-top: 3px; }

.ec-note {
  font-size: .82rem;
  line-height: 1.55;
  color: var(--ink-2);
  background: rgba(0, 175, 239, .06);
  border: 1px solid rgba(0, 175, 239, .35);
  border-radius: 10px;
  padding: 12px 14px;
}
.ec-note strong { color: var(--navy); }

/* ── Comparison table ────────────────────────────────────────── */
.comp-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .85rem;
  background: #fff;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 0 0 1px var(--line);
}
.comp-table thead th {
  background: var(--navy);
  color: #fff;
  text-align: left;
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 12px 16px;
}
.comp-table tbody td {
  padding: 10px 16px;
  border-top: 1px solid var(--line);
  color: var(--ink-2);
  vertical-align: top;
}
.comp-table tbody td:first-child { color: var(--navy); font-weight: 600; }
.comp-table tbody td.cat {
  background: var(--bg-2);
  font-size: .7rem;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--ink-3);
  font-weight: 800;
}
.comp-table .tick  { color: #16a34a; font-weight: 700; }
.comp-table .cross { color: #dc2626; font-weight: 700; }

/* ── Online calculators (tabs + panels) ──────────────────────── */
.calc-tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  border-bottom: 2px solid var(--line);
  padding-bottom: 0;
  margin-bottom: 24px;
}
.c-tab {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  border: none;
  background: transparent;
  font-size: .85rem;
  font-weight: 700;
  color: var(--ink-3);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: color .15s, border-color .15s;
}
.c-tab:hover { color: var(--navy); }
.c-tab.active {
  color: var(--orange);
  border-bottom-color: var(--orange);
}
.c-tab i { font-size: .9rem; }

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

.calc-card {
  background: #fff;
  border: 1.5px solid var(--line);
  border-radius: 16px;
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.calc-title {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--navy);
  letter-spacing: -.02em;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.calc-title i { color: var(--orange); }
.calc-desc {
  font-size: .9rem;
  color: var(--ink-2);
  line-height: 1.65;
}
.calc-formula {
  background: var(--bg-2);
  border-radius: 10px;
  padding: 14px 18px;
  font-family: 'Inter', monospace;
  font-size: .82rem;
  color: var(--navy);
  line-height: 1.8;
  border-left: 3px solid var(--orange);
}
.calc-formula strong { font-weight: 800; }

.cf-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px 18px;
}
.cf-grid.three { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 768px) {
  .cf-grid, .cf-grid.three { grid-template-columns: 1fr; }
}
.cf-group { display: flex; flex-direction: column; gap: 6px; }
.cf-label {
  font-size: .76rem;
  font-weight: 700;
  color: var(--navy);
}
.cf-select, .cf-input {
  width: 100%;
  padding: 10px 12px;
  font-size: .88rem;
  border: 1.5px solid var(--line);
  border-radius: 10px;
  background: #fff;
  color: var(--navy);
  font-family: inherit;
  transition: border-color .15s, box-shadow .15s;
}
.cf-select:focus, .cf-input:focus {
  outline: none;
  border-color: var(--orange);
  box-shadow: 0 0 0 3px rgba(249,115,22,.15);
}

.btn-calc {
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  background: var(--orange);
  color: #fff;
  border: none;
  border-radius: 10px;
  font-weight: 800;
  font-size: .9rem;
  letter-spacing: .5px;
  cursor: pointer;
  transition: background .15s, transform .15s;
}
.btn-calc:hover { background: var(--orange-d); transform: translateY(-1px); }

.calc-result {
  background: var(--bg-2);
  border-radius: 12px;
  padding: 0;
  font-size: .9rem;
  color: var(--ink-2);
  min-height: 0;
}
.calc-result:not(:empty) { padding: 16px 18px; }
.calc-result strong { color: var(--navy); }

.tip-box {
  display: flex;
  gap: 12px;
  background: #FFF7ED;
  border: 1px solid #FED7AA;
  border-radius: 10px;
  padding: 14px 16px;
}
.tip-box i { color: var(--orange); font-size: 1.1rem; flex-shrink: 0; margin-top: 2px; }
.tip-box p { font-size: .82rem; color: var(--ink-2); line-height: 1.6; margin: 0; }
.tip-box p strong { color: var(--navy); }