/* ═══════════════════════════════════════════════════════════════════════════
 * PAYMENT CALCULATOR — payment-calc.css
 * Namespace: pc- (payment calculator)
 * ═══════════════════════════════════════════════════════════════════════════ */

/* ── RESET & SCOPE ─────────────────────────────────────────────────────── */
.pc-wrap *,
.pc-wrap *::before,
.pc-wrap *::after {
  box-sizing: border-box;
}

/* ── WIDGET CARD OVERRIDE ──────────────────────────────────────────────── */
.pc-widget {
  font-family: 'Inter', 'Segoe UI', system-ui, sans-serif;
  color: var(--clr-text-primary, #0f172a);
}

/* ── GRID: Inputs + Results side by side on desktop ───────────────────── */
.pc-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  align-items: start;
}
@media (max-width: 860px) {
  .pc-grid { grid-template-columns: 1fr; }
}

/* ── SECTION HEADINGS ──────────────────────────────────────────────────── */
.pc-section-title {
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .07em;
  text-transform: uppercase;
  color: var(--clr-accent-dark, #0369a1);
  margin: 0 0 .85rem;
  padding-bottom: .45rem;
  border-bottom: 2px solid var(--clr-accent-light, #e0f2fe);
}

/* ── INPUT PANEL ───────────────────────────────────────────────────────── */
.pc-inputs-panel {
  display: flex;
  flex-direction: column;
  gap: .75rem;
}

.pc-field {
  display: flex;
  flex-direction: column;
  gap: .28rem;
}

.pc-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: .78rem;
  font-weight: 600;
  color: var(--clr-text-secondary, #475569);
}

.pc-label-hint {
  font-size: .7rem;
  font-weight: 400;
  color: var(--clr-text-muted, #94a3b8);
}

.pc-input-wrap {
  position: relative;
  display: flex;
  align-items: center;
}

.pc-input-prefix,
.pc-input-suffix {
  position: absolute;
  font-size: .8rem;
  font-weight: 600;
  color: var(--clr-text-muted, #94a3b8);
  pointer-events: none;
  user-select: none;
}
.pc-input-prefix { left: .65rem; }
.pc-input-suffix { right: .65rem; }

.pc-input {
  width: 100%;
  padding: .52rem .65rem;
  border: 1.5px solid var(--clr-border, #e2e8f0);
  border-radius: 8px;
  font-size: .85rem;
  font-weight: 500;
  color: var(--clr-text-primary, #0f172a);
  background: var(--clr-bg, #fff);
  transition: border-color .18s, box-shadow .18s;
  -moz-appearance: textfield;
}
.pc-input::-webkit-outer-spin-button,
.pc-input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.pc-input:focus {
  outline: none;
  border-color: var(--clr-accent, #0ea5e9);
  box-shadow: var(--shadow-focus, 0 0 0 4px rgba(14,165,233,.15));
}
.pc-input.has-prefix  { padding-left: 1.8rem; }
.pc-input.has-suffix  { padding-right: 2rem; }

/* Slider */
.pc-slider-row {
  display: flex;
  align-items: center;
  gap: .6rem;
  margin-top: .15rem;
}
.pc-slider {
  flex: 1;
  -webkit-appearance: none;
  height: 4px;
  border-radius: 2px;
  background: var(--clr-border, #e2e8f0);
  cursor: pointer;
  accent-color: var(--clr-accent, #0ea5e9);
}
.pc-slider-val {
  font-size: .72rem;
  font-weight: 600;
  color: var(--clr-accent-dark, #0369a1);
  white-space: nowrap;
  min-width: 3.2rem;
  text-align: right;
}

/* Row field: two inputs side by side */
.pc-field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: .65rem;
}

/* Select */
.pc-select {
  width: 100%;
  padding: .52rem .65rem;
  border: 1.5px solid var(--clr-border, #e2e8f0);
  border-radius: 8px;
  font-size: .83rem;
  font-weight: 500;
  color: var(--clr-text-primary, #0f172a);
  background: var(--clr-bg, #fff);
  cursor: pointer;
  transition: border-color .18s, box-shadow .18s;
  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='%2394a3b8' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right .65rem center;
  padding-right: 2rem;
}
.pc-select:focus {
  outline: none;
  border-color: var(--clr-accent, #0ea5e9);
  box-shadow: var(--shadow-focus, 0 0 0 4px rgba(14,165,233,.15));
}

/* Section divider inside inputs */
.pc-divider {
  height: 1px;
  background: var(--clr-border-soft, #f1f5f9);
  margin: .25rem 0;
}

/* Buttons */
.pc-btn-row {
  display: flex;
  gap: .6rem;
  margin-top: .5rem;
}
.pc-btn {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .55rem 1.1rem;
  border-radius: 8px;
  font-size: .82rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: background .18s, transform .1s, box-shadow .18s;
}
.pc-btn:active { transform: scale(.97); }
.pc-btn-primary {
  background: var(--clr-accent, #0ea5e9);
  color: #fff;
  flex: 1;
  justify-content: center;
}
.pc-btn-primary:hover { background: #0284c7; }
.pc-btn-clear {
  background: var(--clr-bg-muted, #f1f5f9);
  color: var(--clr-text-secondary, #475569);
  border: 1.5px solid var(--clr-border, #e2e8f0);
}
.pc-btn-clear:hover { background: var(--clr-border, #e2e8f0); }

/* ── RESULTS PANEL ─────────────────────────────────────────────────────── */
.pc-results-panel {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

/* Summary cards */
.pc-summary-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: .55rem;
}
.pc-result-card {
  background: var(--clr-bg-soft, #f8fafc);
  border: 1.5px solid var(--clr-border, #e2e8f0);
  border-radius: 10px;
  padding: .65rem .75rem;
  display: flex;
  flex-direction: column;
  gap: .18rem;
}
.pc-result-card.primary {
  background: var(--clr-accent-light, #e0f2fe);
  border-color: var(--clr-accent, #0ea5e9);
  grid-column: 1 / -1;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
}
.pc-result-label {
  font-size: .7rem;
  font-weight: 600;
  color: var(--clr-text-muted, #94a3b8);
  text-transform: uppercase;
  letter-spacing: .04em;
}
.pc-result-card.primary .pc-result-label {
  color: var(--clr-accent-dark, #0369a1);
  font-size: .75rem;
}
.pc-result-value {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--clr-text-primary, #0f172a);
}
.pc-result-card.primary .pc-result-value {
  font-size: 1.55rem;
  color: var(--clr-accent-dark, #0369a1);
}
.pc-result-sub {
  font-size: .68rem;
  color: var(--clr-text-muted, #94a3b8);
}

/* ── DONUT CHART ───────────────────────────────────────────────────────── */
.pc-donut-wrap {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: var(--clr-bg-soft, #f8fafc);
  border: 1.5px solid var(--clr-border, #e2e8f0);
  border-radius: 10px;
  padding: .75rem;
}
.pc-donut-svg-wrap {
  position: relative;
  flex-shrink: 0;
}
.pc-donut-svg { display: block; }
.pc-donut-center {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%,-50%);
  text-align: center;
  pointer-events: none;
}
.pc-donut-center-label {
  font-size: .58rem;
  font-weight: 600;
  color: var(--clr-text-muted, #94a3b8);
  text-transform: uppercase;
  letter-spacing: .04em;
  display: block;
}
.pc-donut-center-val {
  font-size: .9rem;
  font-weight: 700;
  color: var(--clr-text-primary, #0f172a);
  display: block;
  margin-top: .05rem;
}
.pc-donut-legend {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: .45rem;
}
.pc-legend-item {
  display: flex;
  align-items: center;
  gap: .45rem;
  font-size: .74rem;
}
.pc-legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 3px;
  flex-shrink: 0;
}
.pc-legend-name {
  color: var(--clr-text-secondary, #475569);
  font-weight: 500;
  flex: 1;
}
.pc-legend-pct {
  font-weight: 700;
  color: var(--clr-text-primary, #0f172a);
}
.pc-legend-amt {
  font-size: .68rem;
  color: var(--clr-text-muted, #94a3b8);
  margin-left: 1.4rem;
}

/* ── AMORTIZATION SECTION ──────────────────────────────────────────────── */
.pc-amort-section {
  margin-top: 1.25rem;
}

.pc-amort-tabs {
  display: flex;
  gap: .4rem;
  margin-bottom: .85rem;
  border-bottom: 2px solid var(--clr-border, #e2e8f0);
  padding-bottom: .5rem;
}
.pc-tab-btn {
  padding: .3rem .75rem;
  border-radius: 6px 6px 0 0;
  border: none;
  background: transparent;
  font-size: .78rem;
  font-weight: 600;
  color: var(--clr-text-muted, #94a3b8);
  cursor: pointer;
  transition: background .15s, color .15s;
}
.pc-tab-btn.active {
  background: var(--clr-accent-light, #e0f2fe);
  color: var(--clr-accent-dark, #0369a1);
}
.pc-tab-btn:hover:not(.active) {
  background: var(--clr-bg-muted, #f1f5f9);
  color: var(--clr-text-secondary, #475569);
}

/* Line chart */
.pc-line-chart-wrap {
  background: var(--clr-bg-soft, #f8fafc);
  border: 1.5px solid var(--clr-border, #e2e8f0);
  border-radius: 10px;
  padding: .6rem .75rem .5rem;
  margin-bottom: .75rem;
}
.pc-chart-legend {
  display: flex;
  gap: 1rem;
  margin-bottom: .4rem;
  flex-wrap: wrap;
}
.pc-chart-legend-item {
  display: flex;
  align-items: center;
  gap: .3rem;
  font-size: .68rem;
  font-weight: 600;
  color: var(--clr-text-secondary, #475569);
}
.pc-chart-legend-dot {
  width: 10px;
  height: 4px;
  border-radius: 2px;
}
.pc-line-svg { display: block; width: 100%; height: auto; }

/* Amort table */
.pc-amort-table-wrap {
  max-height: 240px;
  overflow-y: auto;
  border-radius: 8px;
  border: 1.5px solid var(--clr-border, #e2e8f0);
  font-size: .72rem;
}
.pc-amort-table-wrap::-webkit-scrollbar { width: 4px; }
.pc-amort-table-wrap::-webkit-scrollbar-track { background: transparent; }
.pc-amort-table-wrap::-webkit-scrollbar-thumb { background: var(--clr-border, #e2e8f0); border-radius: 2px; }

.pc-amort-table {
  width: 100%;
  border-collapse: collapse;
}
.pc-amort-table thead th {
  position: sticky;
  top: 0;
  background: var(--clr-bg-muted, #f1f5f9);
  padding: .38rem .55rem;
  text-align: right;
  font-size: .68rem;
  font-weight: 700;
  color: var(--clr-text-secondary, #475569);
  text-transform: uppercase;
  letter-spacing: .04em;
  border-bottom: 1.5px solid var(--clr-border, #e2e8f0);
  white-space: nowrap;
  z-index: 1;
}
.pc-amort-table thead th:first-child { text-align: left; }
.pc-amort-table tbody td {
  padding: .32rem .55rem;
  text-align: right;
  border-bottom: 1px solid var(--clr-border-soft, #f1f5f9);
  color: var(--clr-text-secondary, #475569);
  white-space: nowrap;
}
.pc-amort-table tbody td:first-child {
  text-align: left;
  font-weight: 600;
  color: var(--clr-text-primary, #0f172a);
}
.pc-amort-table tbody tr:last-child td { border-bottom: none; }
.pc-amort-table tbody tr:nth-child(even) td { background: var(--clr-bg-soft, #f8fafc); }
.pc-amort-table .pc-td-interest { color: var(--clr-interest, #fbbf24); font-weight: 600; }
.pc-amort-table .pc-td-principal { color: var(--clr-accent-dark, #0369a1); font-weight: 600; }
.pc-amort-table .pc-td-balance { color: var(--clr-text-muted, #94a3b8); }

/* ── ARTICLE STYLES ────────────────────────────────────────────────────── */
.pc-article-section { margin-top: 1rem; }

/* Formula block override to match brand */
.pc-wrap .formula-block {
  background: var(--clr-bg-muted, #f1f5f9);
  border-left: 3px solid var(--clr-teal, #14b8a6);
  padding: .7rem 1rem;
  border-radius: 0 8px 8px 0;
  font-family: 'Courier New', monospace;
  font-size: .85rem;
  color: var(--clr-text-primary, #0f172a);
  margin: .75rem 0;
  overflow-x: auto;
}

/* ── RESPONSIVE TWEAKS ─────────────────────────────────────────────────── */
@media (max-width: 480px) {
  .pc-summary-grid { grid-template-columns: 1fr; }
  .pc-result-card.primary { flex-direction: column; align-items: flex-start; }
  .pc-donut-wrap { flex-direction: column; }
  .pc-field-row { grid-template-columns: 1fr; }
}