@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

:root {
  --cumulative-interest-calculator-teal: #0D9488;
  --cumulative-interest-calculator-teal-light: #14B8A6;
  --cumulative-interest-calculator-teal-dark: #0F766E;
  --cumulative-interest-calculator-navy: #0F172A;
  --cumulative-interest-calculator-navy-mid: #1E293B;
  --cumulative-interest-calculator-white: #FFFFFF;
  --cumulative-interest-calculator-gray: #F1F5F9;
  --cumulative-interest-calculator-gray-mid: #E2E8F0;
  --cumulative-interest-calculator-text: #0F172A;
  --cumulative-interest-calculator-text-muted: #64748B;
  --cumulative-interest-calculator-red: #DC2626;
}

.cumulative-interest-calculator-wrap * { box-sizing: border-box; }

.cumulative-interest-calculator-wrap {
  font-family: 'Inter', sans-serif;
  max-width: 1100px;
  margin: 0 auto;
  padding: 20px;
  color: var(--cumulative-interest-calculator-text);
}

/* Header */
.cumulative-interest-calculator-header {
  background: linear-gradient(135deg, var(--cumulative-interest-calculator-navy), var(--cumulative-interest-calculator-navy-mid));
  color: white;
  padding: 40px;
  border-radius: 16px;
  text-align: center;
  margin-bottom: 20px;
}
.cumulative-interest-calculator-header-icon { font-size: 48px; margin-bottom: 10px; }
.cumulative-interest-calculator-header h2 { font-size: 30px; font-weight: 800; margin: 0 0 6px; }
.cumulative-interest-calculator-header p { opacity: 0.7; font-size: 15px; margin: 0; }

/* Top bar: mode toggle + currency */
.cumulative-interest-calculator-topbar {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
}
.cumulative-interest-calculator-mode-toggle { display: flex; gap: 8px; }
.cumulative-interest-calculator-mode-pill { position: relative; }
.cumulative-interest-calculator-mode-pill input {
  position: absolute;
  opacity: 0;
  inset: 0;
  margin: 0;
  cursor: pointer;
}
.cumulative-interest-calculator-mode-pill span {
  display: flex;
  align-items: center;
  height: 2.4rem;
  padding: 0 1.1rem;
  border-radius: 999px;
  background: var(--cumulative-interest-calculator-white);
  border: 1.5px solid var(--cumulative-interest-calculator-gray-mid);
  color: var(--cumulative-interest-calculator-text-muted);
  font-weight: 700;
  font-size: 0.85rem;
  white-space: nowrap;
  transition: all 0.15s ease;
}
.cumulative-interest-calculator-mode-pill input:hover + span { border-color: var(--cumulative-interest-calculator-teal); color: var(--cumulative-interest-calculator-navy); }
.cumulative-interest-calculator-mode-pill input:checked + span {
  background: linear-gradient(135deg, var(--cumulative-interest-calculator-teal) 0%, var(--cumulative-interest-calculator-teal-dark) 100%);
  border-color: var(--cumulative-interest-calculator-teal-dark);
  color: #fff;
  box-shadow: 0 4px 10px rgba(13, 148, 136, 0.28);
}
.cumulative-interest-calculator-currency-field { flex: 0 0 auto; min-width: 220px; }

/* Tabs */
.cumulative-interest-calculator-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-bottom: 18px;
  border-bottom: 2px solid var(--cumulative-interest-calculator-gray-mid);
}
.cumulative-interest-calculator-tab-btn {
  padding: 9px 4px;
  margin-right: 18px;
  font-size: 13px;
  font-weight: 700;
  color: var(--cumulative-interest-calculator-text-muted);
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  cursor: pointer;
  transition: color 0.15s ease, border-color 0.15s ease;
  font-family: inherit;
}
.cumulative-interest-calculator-tab-btn:hover { color: var(--cumulative-interest-calculator-navy); }
.cumulative-interest-calculator-tab-btn--active { color: var(--cumulative-interest-calculator-teal-dark); border-bottom-color: var(--cumulative-interest-calculator-teal); }
.cumulative-interest-calculator-tab-panel { display: none; }
.cumulative-interest-calculator-tab-panel--active { display: block; }
.cumulative-interest-calculator-hint {
  margin: 0 0 14px;
  font-size: 12.5px;
  color: var(--cumulative-interest-calculator-text-muted);
  line-height: 1.5;
}

/* Body layout */
.cumulative-interest-calculator-body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  align-items: start;
}
@media (max-width: 900px) {
  .cumulative-interest-calculator-body { grid-template-columns: 1fr; }
  .cumulative-interest-calculator-topbar { align-items: flex-start; }
}

/* Form */
.cumulative-interest-calculator-form-col {
  background: var(--cumulative-interest-calculator-white);
  border: 1px solid var(--cumulative-interest-calculator-gray-mid);
  border-radius: 16px;
  padding: 24px;
}
.cumulative-interest-calculator-field-row {
  display: flex;
  gap: 14px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.cumulative-interest-calculator-field { flex: 1 1 180px; min-width: 0; }
.cumulative-interest-calculator-field-btn { flex: 0 0 auto; display: flex; align-items: flex-end; }
.cumulative-interest-calculator-field label {
  display: block;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--cumulative-interest-calculator-navy);
  margin-bottom: 6px;
}
.cumulative-interest-calculator-input, .cumulative-interest-calculator-select {
  width: 100%;
  border: 1.5px solid var(--cumulative-interest-calculator-gray-mid);
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 14.5px;
  font-family: inherit;
  color: var(--cumulative-interest-calculator-text);
  background: var(--cumulative-interest-calculator-white);
  transition: border-color .15s ease;
}
.cumulative-interest-calculator-input:focus, .cumulative-interest-calculator-select:focus {
  outline: none;
  border-color: var(--cumulative-interest-calculator-teal);
}
.cumulative-interest-calculator-input-prefix, .cumulative-interest-calculator-input-suffix {
  display: flex;
  align-items: center;
  border: 1.5px solid var(--cumulative-interest-calculator-gray-mid);
  border-radius: 10px;
  overflow: hidden;
  transition: border-color .15s ease;
}
.cumulative-interest-calculator-input-prefix:focus-within, .cumulative-interest-calculator-input-suffix:focus-within { border-color: var(--cumulative-interest-calculator-teal); }
.cumulative-interest-calculator-input-prefix .cumulative-interest-calculator-input, .cumulative-interest-calculator-input-suffix .cumulative-interest-calculator-input {
  border: none;
  border-radius: 0;
}
.cumulative-interest-calculator-input-prefix .cumulative-interest-calculator-input:focus, .cumulative-interest-calculator-input-suffix .cumulative-interest-calculator-input:focus { outline: none; }
.cumulative-interest-calculator-prefix, .cumulative-interest-calculator-suffix {
  padding: 0 12px;
  font-weight: 700;
  color: var(--cumulative-interest-calculator-teal-dark);
  background: var(--cumulative-interest-calculator-gray);
  white-space: nowrap;
  font-size: 14px;
}

.cumulative-interest-calculator-divider {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 22px 0 16px;
  color: var(--cumulative-interest-calculator-text-muted);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.cumulative-interest-calculator-divider::before, .cumulative-interest-calculator-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--cumulative-interest-calculator-gray-mid);
}

.cumulative-interest-calculator-toggle-row { display: flex; gap: 16px; padding-top: 4px; }
.cumulative-interest-calculator-radio-label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13.5px;
  color: var(--cumulative-interest-calculator-text);
  cursor: pointer;
}
.cumulative-interest-calculator-radio-label input { accent-color: var(--cumulative-interest-calculator-teal); }

.cumulative-interest-calculator-actions { display: flex; gap: 10px; margin-top: 8px; }
.cumulative-interest-calculator-calc-btn {
  flex: 1;
  background: var(--cumulative-interest-calculator-teal);
  color: white;
  border: none;
  border-radius: 10px;
  padding: 13px 20px;
  font-size: 15px;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  transition: background .15s ease;
}
.cumulative-interest-calculator-calc-btn:hover { background: var(--cumulative-interest-calculator-teal-dark); }
.cumulative-interest-calculator-reset-btn {
  background: var(--cumulative-interest-calculator-white);
  color: var(--cumulative-interest-calculator-navy);
  border: 1.5px solid var(--cumulative-interest-calculator-gray-mid);
  border-radius: 10px;
  padding: 13px 18px;
  font-size: 14px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: border-color .15s ease, color .15s ease;
}
.cumulative-interest-calculator-reset-btn:hover { border-color: var(--cumulative-interest-calculator-teal); color: var(--cumulative-interest-calculator-teal); }

.cumulative-interest-calculator-btn-ghost {
  background: var(--cumulative-interest-calculator-teal);
  color: white;
  border: none;
  border-radius: 8px;
  padding: 10px 16px;
  font-size: 13px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  white-space: nowrap;
}
.cumulative-interest-calculator-btn-ghost:hover { background: var(--cumulative-interest-calculator-teal-dark); }

/* Extra-payment row cards */
.cumulative-interest-calculator-row-list { display: flex; flex-direction: column; gap: 10px; margin-bottom: 10px; }
.cumulative-interest-calculator-row-card {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr auto;
  gap: 10px;
  align-items: end;
  background: var(--cumulative-interest-calculator-gray);
  border: 1px solid var(--cumulative-interest-calculator-gray-mid);
  border-radius: 12px;
  padding: 12px;
}
.cumulative-interest-calculator-row-card label { display: flex; flex-direction: column; gap: 4px; }
.cumulative-interest-calculator-row-card label span {
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--cumulative-interest-calculator-text-muted);
}
.cumulative-interest-calculator-row-card input, .cumulative-interest-calculator-row-card select {
  border: 1.5px solid var(--cumulative-interest-calculator-gray-mid);
  border-radius: 8px;
  padding: 8px 10px;
  font-size: 13px;
  font-family: inherit;
}
.cumulative-interest-calculator-row-mid { display: contents; }
.cumulative-interest-calculator-row-remove {
  width: 38px;
  height: 38px;
  flex: 0 0 38px;
  border-radius: 10px;
  border: 1.5px solid var(--cumulative-interest-calculator-gray-mid);
  background: var(--cumulative-interest-calculator-white);
  color: var(--cumulative-interest-calculator-text-muted);
  cursor: pointer;
  font-size: 14px;
}
.cumulative-interest-calculator-row-remove:hover { color: var(--cumulative-interest-calculator-red); border-color: var(--cumulative-interest-calculator-red); }
.cumulative-interest-calculator-add-row-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 16px;
  font-size: 13px;
  font-weight: 700;
  color: var(--cumulative-interest-calculator-teal-dark);
  background: rgba(13, 148, 136, 0.08);
  border: 1.5px dashed var(--cumulative-interest-calculator-teal);
  border-radius: 10px;
  cursor: pointer;
  margin-bottom: 8px;
  font-family: inherit;
}
.cumulative-interest-calculator-add-row-btn:hover { background: rgba(13, 148, 136, 0.15); }

/* Compare-rates cards */
.cumulative-interest-calculator-compare-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
  margin-bottom: 12px;
}
.cumulative-interest-calculator-compare-card {
  background: var(--cumulative-interest-calculator-gray);
  border: 1px solid var(--cumulative-interest-calculator-gray-mid);
  border-radius: 12px;
  padding: 14px;
  position: relative;
}
.cumulative-interest-calculator-compare-card--best { border-color: var(--cumulative-interest-calculator-teal); box-shadow: 0 4px 14px rgba(13, 148, 136, 0.16); }
.cumulative-interest-calculator-compare-badge {
  position: absolute;
  top: -9px;
  right: 12px;
  background: var(--cumulative-interest-calculator-teal);
  color: #fff;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 999px;
}
.cumulative-interest-calculator-compare-name {
  border: none;
  background: transparent;
  font-size: 13px;
  font-weight: 800;
  color: var(--cumulative-interest-calculator-navy);
  padding: 2px 0 8px;
  width: 100%;
  font-family: inherit;
}
.cumulative-interest-calculator-compare-name:focus { outline: none; border-bottom: 1.5px solid var(--cumulative-interest-calculator-teal); }
.cumulative-interest-calculator-compare-fields { display: flex; flex-direction: column; gap: 8px; margin-bottom: 10px; }
.cumulative-interest-calculator-compare-fields label span {
  display: block;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--cumulative-interest-calculator-text-muted);
  margin-bottom: 3px;
}
.cumulative-interest-calculator-compare-result {
  border-top: 1px dashed var(--cumulative-interest-calculator-gray-mid);
  padding-top: 8px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.cumulative-interest-calculator-compare-result-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 11.5px;
  color: var(--cumulative-interest-calculator-text-muted);
}
.cumulative-interest-calculator-compare-result-row strong { color: var(--cumulative-interest-calculator-navy); }
.cumulative-interest-calculator-compare-result-row--total strong { color: var(--cumulative-interest-calculator-teal-dark); font-size: 13.5px; }
.cumulative-interest-calculator-compare-remove {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: none;
  background: transparent;
  color: var(--cumulative-interest-calculator-text-muted);
  cursor: pointer;
  font-size: 12px;
}
.cumulative-interest-calculator-compare-remove:hover { color: var(--cumulative-interest-calculator-red); }

/* Result column */
.cumulative-interest-calculator-result-card {
  background: linear-gradient(135deg, var(--cumulative-interest-calculator-navy), var(--cumulative-interest-calculator-navy-mid));
  color: white;
  border-radius: 16px;
  padding: 28px;
  text-align: center;
}
.cumulative-interest-calculator-result-label {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  opacity: 0.7;
  margin-bottom: 6px;
}
.cumulative-interest-calculator-result-big {
  font-size: 40px;
  font-weight: 800;
  color: var(--cumulative-interest-calculator-teal-light);
  margin-bottom: 22px;
  word-break: break-word;
}

/* Donut chart */
.cumulative-interest-calculator-donut-wrap { display: flex; justify-content: center; margin-bottom: 18px; }
.cumulative-interest-calculator-donut { max-width: 170px; height: auto; filter: drop-shadow(0 6px 14px rgba(0, 0, 0, 0.25)); }
.cumulative-interest-calculator-donut-center-label {
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.06em;
  fill: rgba(255, 255, 255, 0.65);
}
.cumulative-interest-calculator-donut-center-value { font-size: 20px; font-weight: 800; fill: #fff; }
.cumulative-interest-calculator-donut-seg { transition: stroke-dasharray 0.6s cubic-bezier(0.22, 1, 0.36, 1); }

.cumulative-interest-calculator-result-breakdown {
  display: flex;
  flex-direction: column;
  gap: 10px;
  text-align: left;
  background: rgba(255,255,255,.06);
  border-radius: 10px;
  padding: 14px 16px;
  margin-bottom: 18px;
}
.cumulative-interest-calculator-result-stat { display: flex; justify-content: space-between; font-size: 14px; }
.cumulative-interest-calculator-stat-label { opacity: 0.75; }
.cumulative-interest-calculator-stat-value { font-weight: 700; }
.cumulative-interest-calculator-stat-highlight { color: var(--cumulative-interest-calculator-teal-light); }

.cumulative-interest-calculator-export-row {
  display: flex;
  gap: 10px;
  margin: 16px 0;
  flex-wrap: wrap;
}
.cumulative-interest-calculator-export-btn {
  flex: 1;
  min-width: 100px;
  background: var(--cumulative-interest-calculator-white);
  border: 1.5px solid var(--cumulative-interest-calculator-gray-mid);
  border-radius: 10px;
  padding: 10px 14px;
  font-size: 13.5px;
  font-weight: 600;
  font-family: inherit;
  color: var(--cumulative-interest-calculator-navy);
  cursor: pointer;
  transition: border-color .15s ease, background .15s ease;
}
.cumulative-interest-calculator-export-btn:hover { border-color: var(--cumulative-interest-calculator-teal); background: var(--cumulative-interest-calculator-gray); }

/* Examples row */
.cumulative-interest-calculator-examples { margin-top: 16px; }
.cumulative-interest-calculator-examples-label {
  display: block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--cumulative-interest-calculator-text-muted);
  margin-bottom: 10px;
}
.cumulative-interest-calculator-examples-row { display: flex; flex-wrap: wrap; gap: 8px; }
.cumulative-interest-calculator-example-btn {
  padding: 8px 14px;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--cumulative-interest-calculator-teal-dark);
  background: rgba(13, 148, 136, 0.08);
  border: 1px solid var(--cumulative-interest-calculator-gray-mid);
  border-radius: 999px;
  cursor: pointer;
  font-family: inherit;
}
.cumulative-interest-calculator-example-btn:hover { background: rgba(13, 148, 136, 0.15); }

/* History panel */
.cumulative-interest-calculator-history-toggle-btn {
  display: block;
  width: 100%;
  padding: 11px 14px;
  background: var(--cumulative-interest-calculator-white);
  color: var(--cumulative-interest-calculator-text-muted);
  border: 1.5px solid var(--cumulative-interest-calculator-gray-mid);
  border-radius: 10px;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  font-family: inherit;
  margin-top: 4px;
}
.cumulative-interest-calculator-history-toggle-btn:hover { border-color: var(--cumulative-interest-calculator-teal); color: var(--cumulative-interest-calculator-navy); background: var(--cumulative-interest-calculator-gray); }
.cumulative-interest-calculator-history-panel {
  margin-top: 22px;
  background: var(--cumulative-interest-calculator-gray);
  border: 1px solid var(--cumulative-interest-calculator-gray-mid);
  border-radius: 16px;
  padding: 20px 20px 22px;
}
.cumulative-interest-calculator-history-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 14px;
}
.cumulative-interest-calculator-history-title { margin: 0; font-size: 15px; color: var(--cumulative-interest-calculator-navy); font-weight: 800; }
.cumulative-interest-calculator-history-head-actions { display: flex; gap: 8px; }
.cumulative-interest-calculator-btn-ghost--small { padding: 7px 12px; font-size: 11.5px; }
.cumulative-interest-calculator-btn-ghost--muted { background: var(--cumulative-interest-calculator-white); color: var(--cumulative-interest-calculator-text-muted); border: 1.5px solid var(--cumulative-interest-calculator-gray-mid); }
.cumulative-interest-calculator-btn-ghost--muted:hover { color: var(--cumulative-interest-calculator-red); border-color: var(--cumulative-interest-calculator-red); background: var(--cumulative-interest-calculator-white); }
.cumulative-interest-calculator-history-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 10px;
}
.cumulative-interest-calculator-history-item {
  display: block;
  width: 100%;
  text-align: left;
  background: var(--cumulative-interest-calculator-white);
  border: 1px solid var(--cumulative-interest-calculator-gray-mid);
  border-radius: 10px;
  padding: 12px 14px;
  cursor: pointer;
  color: var(--cumulative-interest-calculator-text);
  font-family: inherit;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.cumulative-interest-calculator-history-item:hover { border-color: var(--cumulative-interest-calculator-teal); box-shadow: 0 4px 12px rgba(13, 148, 136, 0.15); }
.cumulative-interest-calculator-history-item-top {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  font-size: 11px;
  color: var(--cumulative-interest-calculator-text-muted);
  margin-bottom: 4px;
}
.cumulative-interest-calculator-history-item-type { font-weight: 700; color: var(--cumulative-interest-calculator-teal-dark); }
.cumulative-interest-calculator-history-item-summary { font-size: 12.5px; color: var(--cumulative-interest-calculator-text-muted); margin-bottom: 3px; }
.cumulative-interest-calculator-history-item-result { font-size: 14px; font-weight: 800; color: var(--cumulative-interest-calculator-navy); }
.cumulative-interest-calculator-history-empty { margin: 6px 0 0; font-size: 13px; color: var(--cumulative-interest-calculator-text-muted); text-align: center; }
.cumulative-interest-calculator-export-card { position: absolute; left: -9999px; top: -9999px; }

.cumulative-interest-calculator-table-wrap {
  background: var(--cumulative-interest-calculator-white);
  border: 1px solid var(--cumulative-interest-calculator-gray-mid);
  border-radius: 12px;
  overflow: hidden;
  max-height: 360px;
  overflow-y: auto;
}
.cumulative-interest-calculator-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.cumulative-interest-calculator-table th {
  position: sticky;
  top: 0;
  background: var(--cumulative-interest-calculator-navy);
  color: white;
  text-align: right;
  padding: 10px 14px;
  font-weight: 600;
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.cumulative-interest-calculator-table th:first-child, .cumulative-interest-calculator-table td:first-child { text-align: left; }
.cumulative-interest-calculator-table td {
  padding: 9px 14px;
  text-align: right;
  border-bottom: 1px solid var(--cumulative-interest-calculator-gray-mid);
  color: var(--cumulative-interest-calculator-text);
  white-space: nowrap;
}
.cumulative-interest-calculator-table tr:nth-child(even) { background: var(--cumulative-interest-calculator-gray); }
.cumulative-interest-calculator-table tr:last-child td { font-weight: 700; border-top: 2px solid var(--cumulative-interest-calculator-teal); }

.cumulative-interest-calculator-disclaimer {
  margin-top: 20px;
  font-size: 12px;
  color: var(--cumulative-interest-calculator-text-muted);
  line-height: 1.6;
  text-align: center;
}

@media (max-width: 640px) {
  .cumulative-interest-calculator-header { padding: 28px 20px; }
  .cumulative-interest-calculator-header h2 { font-size: 24px; }
  .cumulative-interest-calculator-result-big { font-size: 30px; }
  .cumulative-interest-calculator-field-row { gap: 10px; }
  .cumulative-interest-calculator-row-card { grid-template-columns: 1fr; }
  .cumulative-interest-calculator-row-remove { width: 100%; }
}