/* ============================================
   HPP Calculator Page
   ============================================ */

.page-hero {
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
  color: var(--color-white); padding: 3.5rem 1.25rem 3rem;
}
.page-hero h1 { color: var(--color-white); margin-bottom: 0.75rem; }
.page-hero p { color: rgba(255,255,255,0.8); max-width: 680px; margin: 0; font-size: 1.05rem; }

/* ── Layout ── */
.calc-layout {
  display: grid; grid-template-columns: 420px 1fr; gap: 2rem; align-items: start;
}

/* ── Input Panel ── */
.calc-inputs h2 { font-size: 1.2rem; margin-bottom: 1.5rem; }
.form-group { margin-bottom: 1.25rem; }
.form-group label {
  display: block; font-size: 0.875rem; font-weight: 600;
  color: var(--color-text); margin-bottom: 0.4rem;
}
.label-optional { font-weight: 400; color: var(--color-text-muted); font-size: 0.8rem; }
.input-prefix, .input-suffix {
  display: flex; align-items: center;
  border: 1px solid var(--color-border); border-radius: var(--radius-sm);
  overflow: hidden; background: var(--color-white);
  transition: border-color var(--transition);
}
.input-prefix:focus-within, .input-suffix:focus-within { border-color: var(--color-primary); outline: 2px solid var(--color-accent); outline-offset: 1px; }
.input-prefix span, .input-suffix span {
  padding: 0.55rem 0.75rem; background: var(--color-bg);
  color: var(--color-text-muted); font-size: 0.9rem; font-weight: 600;
  border-right: 1px solid var(--color-border); white-space: nowrap;
}
.input-suffix span { border-right: none; border-left: 1px solid var(--color-border); }
.input-prefix input, .input-suffix input {
  flex: 1; border: none; padding: 0.55rem 0.75rem;
  font-family: var(--font-main); font-size: 0.95rem; background: transparent;
  color: var(--color-text); outline: none; min-width: 0;
}
.form-group > input[type="number"] {
  width: 100%; padding: 0.55rem 0.75rem; border: 1px solid var(--color-border);
  border-radius: var(--radius-sm); font-family: var(--font-main); font-size: 0.95rem;
  transition: border-color var(--transition);
}
.form-group > input[type="number"]:focus { border-color: var(--color-primary); outline: 2px solid var(--color-accent); outline-offset: 1px; }
.form-hint { font-size: 0.78rem; color: var(--color-text-muted); margin-top: 0.3rem; display: block; }
.form-hint a { color: var(--color-primary); text-decoration: underline; }

/* LTV display */
.ltv-display {
  margin-top: 0.4rem; font-size: 0.82rem; font-weight: 600;
  padding: 0.3rem 0.6rem; border-radius: var(--radius-sm);
  display: inline-block;
}
.ltv-display.ltv-ok { background: #d1fae5; color: #065f46; }
.ltv-display.ltv-warn { background: #fef3c7; color: #92400e; }
.ltv-display.ltv-bad { background: #fee2e2; color: #991b1b; }

/* Range slider */
input[type="range"] {
  width: 100%; accent-color: var(--color-primary);
  height: 6px; cursor: pointer;
}
.range-display {
  display: flex; justify-content: space-between; align-items: center;
  font-size: 0.8rem; color: var(--color-text-muted); margin-top: 0.3rem;
}
.range-display strong { color: var(--color-primary); font-size: 0.95rem; }

.calc-btn { width: 100%; margin-top: 0.5rem; padding: 0.85rem; font-size: 1rem; }

/* ── Results ── */
.calc-empty {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  min-height: 300px; text-align: center; color: var(--color-text-muted);
  border: 2px dashed var(--color-border); border-radius: var(--radius-md); padding: 2rem;
}
.calc-empty__icon { font-size: 3rem; margin-bottom: 1rem; }

.result-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-bottom: 1rem; }
.result-card {
  border-radius: var(--radius-md); padding: 1.5rem; text-align: center;
  border: 2px solid transparent;
}
.result-card--hpp { background: #f0fdf4; border-color: var(--color-success); }
.result-card--conv { background: var(--color-bg); border-color: var(--color-border); }
.result-card__label { font-size: 0.8rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; color: var(--color-text-muted); margin-bottom: 0.5rem; }
.result-card__value { font-size: 2rem; font-weight: 800; color: var(--color-primary); line-height: 1; margin-bottom: 0.4rem; }
.result-card--hpp .result-card__value { color: var(--color-success); }
.result-card__sub { font-size: 0.8rem; color: var(--color-text-muted); }

.result-diff { margin-bottom: 1rem; }
.result-diff h3 { font-size: 1rem; margin-bottom: 0.75rem; }
.diff-cheaper { color: var(--color-success); font-weight: 700; }
.diff-pricier { color: var(--color-error); font-weight: 700; }

.result-breakdown h3 { font-size: 1rem; margin-bottom: 0.75rem; }
.breakdown-table { width: 100%; font-size: 0.875rem; }
.breakdown-table td { padding: 0.4rem 0; border-bottom: 1px solid var(--color-border); }
.breakdown-table td:last-child { text-align: right; font-weight: 600; }
.breakdown-table .total-row td { font-weight: 700; color: var(--color-primary); border-bottom: none; padding-top: 0.6rem; }

.hpp-explainer { margin-top: 1rem; }
.hpp-explainer h3 { font-size: 1rem; margin-bottom: 0.75rem; }
.hpp-explainer ol { padding-left: 1.25rem; }
.hpp-explainer li { font-size: 0.875rem; color: var(--color-text); margin-bottom: 0.4rem; }

/* Shared table styles */
.apply-link {
  display: inline-flex; align-items: center; gap: 0.3rem;
  font-size: 0.8rem; font-weight: 600; color: var(--color-primary);
  border: 1px solid var(--color-primary); border-radius: var(--radius-sm);
  padding: 0.25rem 0.6rem; transition: all var(--transition);
}
.apply-link:hover { background: var(--color-primary); color: var(--color-white); }
.table-note { font-size: 0.8rem; color: var(--color-text-muted); margin-top: 0.75rem; padding: 0.75rem 1rem; background: #fffbeb; border-left: 3px solid var(--color-accent); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; }
tbody tr.paused { opacity: 0.6; }

/* Footer */
.footer { background: var(--color-primary-dark); color: rgba(255,255,255,0.8); padding: 3rem 0 0; }
.footer__inner { display: grid; grid-template-columns: 2fr 1fr; gap: 2rem; padding-bottom: 2rem; }
.footer__brand .navbar__logo { color: var(--color-white); font-size: 1.1rem; display: inline-flex; margin-bottom: 0.75rem; }
.footer__brand p { font-size: 0.875rem; color: rgba(255,255,255,0.6); margin: 0; }
.footer__links h4 { color: var(--color-white); font-size: 0.9rem; margin-bottom: 0.75rem; }
.footer__links ul { display: flex; flex-direction: column; gap: 0.4rem; }
.footer__links a { color: rgba(255,255,255,0.65); font-size: 0.875rem; transition: color var(--transition); }
.footer__links a:hover { color: var(--color-accent); }
.footer__bottom { border-top: 1px solid rgba(255,255,255,0.1); padding: 1rem 1.25rem; text-align: center; font-size: 0.8rem; color: rgba(255,255,255,0.4); }

.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

@media (max-width: 900px) {
  .calc-layout { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .result-cards { grid-template-columns: 1fr; }
  .footer__inner { grid-template-columns: 1fr; }
}