/* ============================================================
   PEL IRR Calculator — Embeddable Widget
   Usage: <link rel="stylesheet" href="irr-calculator.css">
          <div id="pel-irr-calculator"></div>
          <script src="irr-calculator.js"></script>
   All styles are scoped under .pel-irr to avoid host page conflicts.
   ============================================================ */

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

.pel-irr {
  --pel-primary: #1874C1;
  --pel-primary-light: #ECF6FF;
  --pel-red: #D43232;
  --pel-red-bg: #FBEBEB;
  --pel-green: #14a34d;
  --pel-green-bg: #e8f6ed;
  --pel-amber: #de782e;
  --pel-amber-bg: #fcf2ea;
  --pel-bg: #FFFFFF;
  --pel-surface: #F8F9FA;
  --pel-text: #272C38;
  --pel-text-secondary: #6a6a6a;
  --pel-text-dim: #999;
  --pel-border: #E8E8E8;

  color: var(--pel-text);
  background: var(--pel-bg);
  max-width: 860px;
  margin: 0 auto;
  padding: 0 15px 40px;
  box-sizing: border-box;
}

.pel-irr *,
.pel-irr *::before,
.pel-irr *::after {
  box-sizing: border-box;
}

.pel-irr h1,
  .pel-irr h2,
  .pel-irr p,
  .pel-irr label,
  .pel-irr table,
  .pel-irr th,
  .pel-irr td {
    font-family: inherit;
    padding: 0;
  }

  /* form elements: only reset margin, padding controlled by class selectors */
  .pel-irr button,
  .pel-irr input,
  .pel-irr select {
    font-family: inherit;
    margin: 0;
  }

.section-irr-calculator {
    padding-top: 10px;
}
/* Header */
.pel-irr__header {
  padding: 1px 0 32px;
}

.pel-irr__title {
  font-size: clamp(28px, 4vw, 40px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--pel-text);
}
.pel-irr__subtitle {
  font-size: 16px;
  color: var(--secondary);
  margin-top: 8px;
  line-height: 1.6;
}

/* Card */
.pel-irr__card {
  background: var(--pel-bg);
  border: 1px solid var(--pel-border);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
}

/* Tabs */
.pel-irr__tabs {
  display: flex;
  border-bottom: 1px solid var(--pel-border);
}
.pel-irr__tab {
  flex: 1;
  padding: 16px 12px;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--pel-text-secondary);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  text-align: center;
  transition: all 0.15s;
}
.pel-irr__tab-desc {
  display: block;
  font-size: 11px;
  font-weight: 400;
  color: var(--pel-text-dim);
  margin-top: 2px;
}
.pel-irr__tab.is-active {
  border-bottom-color: var(--pel-primary);
  color: var(--pel-primary);
  font-weight: 700;
}
.pel-irr__tab.is-active .pel-irr__tab-desc {
  color: var(--pel-primary);
}

/* Body */
.pel-irr__body {
  padding: 28px 32px;
}

/* Net toggle */
.pel-irr__net-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  background: var(--pel-surface);
  border: 1px solid var(--pel-border);
  border-radius: 16px;
  margin-bottom: 24px;
}
.pel-irr__net-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--pel-text);
}
.pel-irr__net-sub {
  font-size: 12px;
  color: var(--pel-text-dim);
  margin-left: 8px;
}
.pel-irr__switch {
  position: relative;
  width: 44px;
  height: 24px;
  cursor: pointer;
  display: block;
  flex-shrink: 0;
}
.pel-irr__switch input {
  display: none;
}
.pel-irr__switch-track {
  position: absolute;
  inset: 0;
  background: #ddd;
  border-radius: 12px;
  transition: background 0.2s;
}
.pel-irr__switch-thumb {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 18px;
  height: 18px;
  background: #fff;
  border-radius: 50%;
  transition: left 0.2s;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.15);
}
.pel-irr__switch input:checked ~ .pel-irr__switch-track {
  background: var(--pel-primary);
}
.pel-irr__switch input:checked ~ .pel-irr__switch-thumb {
  left: 23px;
}

/* Fee inputs */
.pel-irr__fees {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 16px;
  margin-bottom: 24px;
  padding: 20px;
  background: var(--pel-primary-light);
  border: 1px solid rgba(24, 116, 193, 0.13);
  border-radius: 16px;
}

/* Labels & inputs */
.pel-irr__label {
  font-size: 11px;
  font-weight: 700;
  color: var(--pel-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  display: block;
  margin-bottom: 6px;
}
.pel-irr__input,
.pel-irr__select {
  width: 100%;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid var(--pel-border);
  font-size: 14px;
  color: var(--pel-text);
  background: #fff;
  outline: none;
  font-family: inherit;
}
.pel-irr__input:focus,
.pel-irr__select:focus {
  border-color: var(--pel-primary);
}
.pel-irr__input--sm {
  padding: 10px 14px;
}

/* Select wrapper */
.pel-irr__select-wrap {
  position: relative;
  width: 200px;
}
.pel-irr__select {
  padding-right: 36px;
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
}
.pel-irr__chevron {
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  pointer-events: none;
  color: var(--pel-text);
}

/* Section spacing */
.pel-irr__section {
  margin-bottom: 24px;
}

/* Presets */
.pel-irr__presets {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.pel-irr__preset {
  padding: 7px 16px;
  background: var(--pel-primary-light);
  border: 1px solid rgba(24, 116, 193, 0.2);
  border-radius: 100px;
  font-size: 12px;
  font-weight: 600;
  color: var(--pel-primary);
  cursor: pointer;
  font-family: inherit;
  transition: all 0.15s;
}
.pel-irr__preset:hover {
  background: #dcecfa;
}

/* Simple mode grid */
.pel-irr__grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}

/* Table */
.pel-irr__table-wrap {
  border: 1px solid var(--pel-border);
  border-radius: 16px;
  overflow: hidden;
  margin-bottom: 16px;
}
.pel-irr__table {
  width: 100%;
  border-collapse: collapse;
}
.pel-irr__table thead tr {
  background: var(--pel-surface);
}
.pel-irr__table th {
  text-align: left;
  padding: 10px 16px;
  font-size: 11px;
  font-weight: 700;
  color: var(--pel-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.pel-irr__table tbody tr {
  border-top: 1px solid var(--pel-border);
}
.pel-irr__table td {
  padding: 6px 8px;
}
.pel-irr__table td.pel-irr__td-year {
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 700;
  color: var(--pel-text-secondary);
  width: 90px;
}
.pel-irr__table td.pel-irr__td-date {
  padding: 6px 8px 6px 16px;
  width: 180px;
}
.pel-irr__table td.pel-irr__td-remove {
  width: 44px;
}
.pel-irr__table input {
  width: 100%;
  padding: 8px 12px;
  border-radius: 8px;
  border: 1px solid var(--pel-border);
  font-size: 13px;
  color: var(--pel-text);
  background: #fff;
  outline: none;
  font-family: inherit;
}
.pel-irr__table input:focus {
  border-color: var(--pel-primary);
}
.pel-irr__remove {
  background: none;
  border: none;
  color: #ccc;
  cursor: pointer;
  font-size: 18px;
  padding: 2px 6px;
  border-radius: 4px;
  line-height: 1;
}
.pel-irr__remove:hover {
  color: var(--pel-red);
}

.pel-irr__add-row {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: none;
  border: 1px dashed var(--pel-border);
  border-radius: 100px;
  padding: 8px 18px;
  color: var(--pel-text-secondary);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
  margin-bottom: 24px;
}
.pel-irr__add-row:hover {
  border-color: var(--pel-primary);
  color: var(--pel-primary);
}

/* Action buttons */
.pel-irr__actions {
  display: flex;
  gap: 10px;
  margin-top: 8px;
}
.pel-irr__btn-primary {
  flex: 1;
  padding: 14px 28px;
  border-radius: 100px;
  background: var(--pel-primary);
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  border: none;
  cursor: pointer;
  font-family: inherit;
  transition: all 0.2s;
}
.pel-irr__btn-primary:hover {
  background: #1461a3;
}
.pel-irr__btn-secondary {
  padding: 14px 28px;
  border-radius: 100px;
  background: var(--pel-surface);
  color: var(--pel-text-secondary);
  font-size: 15px;
  font-weight: 600;
  border: 1px solid var(--pel-border);
  cursor: pointer;
  font-family: inherit;
}
.pel-irr__btn-secondary:hover {
  background: #eef0f2;
}

/* Error */
.pel-irr__error {
  margin-top: 16px;
  padding: 14px 18px;
  background: var(--pel-red-bg);
  border: 1px solid rgba(212, 50, 50, 0.13);
  border-radius: 16px;
  color: var(--pel-red);
  font-size: 13px;
  font-weight: 500;
}

/* Results */
.pel-irr__results {
  margin-top: 32px;
  padding-top: 28px;
  border-top: 1px solid var(--pel-border);
}
.pel-irr__result-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 16px;
}
.pel-irr__result-card {
  padding: 16px 20px;
  border-radius: 12px;
  text-align: center;
  border: 1px solid var(--pel-border);
  background: var(--pel-surface);
}
.pel-irr__result-card--green {
  background: var(--pel-green-bg);
  border-color: rgba(20, 163, 77, 0.1);
}
.pel-irr__result-card--green .pel-irr__result-value {
  color: var(--pel-green);
}
.pel-irr__result-card--amber {
  background: var(--pel-amber-bg);
  border-color: rgba(222, 120, 46, 0.1);
}
.pel-irr__result-card--amber .pel-irr__result-value {
  color: var(--pel-amber);
}
.pel-irr__result-card--red {
  background: var(--pel-red-bg);
  border-color: rgba(212, 50, 50, 0.1);
}
.pel-irr__result-card--red .pel-irr__result-value {
  color: var(--pel-red);
}
.pel-irr__result-value {
  font-size: 32px;
  font-weight: 800;
  color: var(--pel-text);
  line-height: 1.2;
}
.pel-irr__result-label {
  font-size: 10px;
  font-weight: 700;
  color: var(--pel-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-top: 4px;
}
.pel-irr__result-note {
  font-size: 11px;
  color: var(--pel-text-dim);
  margin-top: 6px;
  font-style: italic;
}

.pel-irr__stats {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 1px;
  background: var(--pel-border);
  border-radius: 12px;
  overflow: hidden;
  margin-bottom: 16px;
}
.pel-irr__stat {
  padding: 12px 14px;
  background: #fff;
  text-align: center;
}
.pel-irr__stat-value {
  font-size: 14px;
  font-weight: 800;
  color: var(--pel-text);
}
.pel-irr__stat-label {
  font-size: 9px;
  font-weight: 700;
  color: var(--pel-text-dim);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-top: 2px;
}

.pel-irr__duration {
  text-align: center;
  font-size: 13px;
  color: var(--pel-text-dim);
  margin-bottom: 16px;
}

.pel-irr__result-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.pel-irr__result-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: 100px;
  background: var(--pel-primary-light);
  border: 1px solid rgba(24, 116, 193, 0.13);
  color: var(--pel-primary);
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
  font-family: inherit;
}
.pel-irr__result-btn:hover {
  background: #dcecfa;
}
.pel-irr__result-btn svg {
  width: 14px;
  height: 14px;
  fill: currentColor;
}

/* CTA */
.pel-irr__cta {
  margin-top: 24px;
  padding: 28px 32px;
  background: var(--primary-lightest);
  border-radius: 16px;
  border: 1px solid rgba(24, 116, 193, 0.1);
  text-align: center;
}
.pel-irr__cta-title {
  font-size: 20px;
  font-weight: 600;
  color: var(--pel-text);
}
.pel-irr__cta-sub {
  font-size: 16px;
  color: var(--pel-text-secondary);
  margin-top: 6px;
}
.pel-irr__cta-btn {
  display: inline-block;
  margin-top: 12px;
  padding: 10px 28px;
  border-radius: 100px;
  background: var(--pel-primary);
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
}
.pel-irr__cta-btn:hover {
  background: #1461a3;
}

/* Toast */
.pel-irr__toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--pel-text);
  color: #fff;
  padding: 10px 24px;
  border-radius: 100px;
  font-size: 13px;
  font-weight: 600;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
  z-index: 10000;
  font-family: 'Nunito', sans-serif;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
}
.pel-irr__toast.is-visible {
  opacity: 1;
}

/* Responsive */
@media (max-width: 640px) {
  .pel-irr__body {
    padding: 20px 16px;
  }
  .pel-irr__grid-2,
  .pel-irr__fees,
  .pel-irr__stats {
    grid-template-columns: 1fr;
  }
  .pel-irr__result-grid {
    grid-template-columns: 1fr;
  }
  .pel-irr__tab {
    padding: 12px 6px;
    font-size: 12px;
  }
  .pel-irr__tab-desc {
    display: none;
  }
  .pel-irr__select-wrap {
    width: 100%;
  }
}