/* EPF Calculator - #3d85c6 */
:root {
  --epf-brand: #3d85c6;
  --epf-brand-dark: #2c6396;
  --epf-brand-light: #eaf4fb;
  --epf-brand-border: #b6d5f2;
  --epf-bg: #f4f8fc;
  --epf-surface: rgba(255, 255, 255, 0.97);
  --epf-solid: #ffffff;
  --epf-text: #1a1a1a;
  --epf-muted: #64748b;
  --epf-shadow: 0 10px 28px rgba(61, 133, 198, 0.12);
  --epf-radius: 16px;
  --epf-font: 'DM Sans', system-ui, sans-serif;
  --epf-green: #166534;
  --epf-green-bg: #ecfdf5;
}

#tool-main {
  font-family: var(--epf-font);
  color: var(--epf-text);
  background: var(--epf-bg);
  background-image: radial-gradient(ellipse 70% 40% at 50% -5%, rgba(61, 133, 198, 0.1), transparent);
  padding-bottom: 16px;
}

.epf-wrap {
  max-width: 520px;
  margin: 0 auto;
  padding: 12px 16px 8px;
}

.epf-hero {
  text-align: center;
  margin-bottom: 12px;
}

.epf-hero h1 {
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--epf-brand);
  margin: 0 0 4px;
}

.epf-hero p {
  color: var(--epf-muted);
  font-size: 0.85rem;
  margin: 0;
}

.epf-glass {
  background: var(--epf-surface);
  border: 1px solid var(--epf-brand-border);
  border-radius: var(--epf-radius);
  box-shadow: var(--epf-shadow);
  padding: 14px 16px;
  margin-bottom: 10px;
}

.epf-form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px 12px;
}

.epf-form-grid .epf-field--full {
  grid-column: 1 / -1;
}

.epf-field label {
  display: block;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--epf-brand-dark);
  margin-bottom: 4px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.epf-amount-wrap {
  position: relative;
}

.epf-currency {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  font-weight: 700;
  color: var(--epf-muted);
  font-size: 0.95rem;
}

.epf-amount-wrap input {
  padding-left: 28px;
}

.epf-input,
.epf-select {
  width: 100%;
  padding: 10px 12px;
  font-size: 1rem;
  font-weight: 600;
  border: 1.5px solid var(--epf-brand-border);
  border-radius: 10px;
  background: #f7fbff;
  box-sizing: border-box;
  font-family: inherit;
  color: var(--epf-text);
}

.epf-input:focus,
.epf-select:focus {
  border-color: var(--epf-brand);
  outline: none;
  box-shadow: 0 0 0 2px var(--epf-brand-light);
}

.epf-note {
  font-size: 0.72rem;
  color: var(--epf-muted);
  margin: 10px 0 0;
  line-height: 1.4;
}

.epf-advanced summary {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--epf-brand-dark);
  cursor: pointer;
  margin-top: 10px;
  padding: 6px 0;
}

.epf-advanced[open] summary {
  margin-bottom: 8px;
}

.epf-actions {
  display: flex;
  gap: 8px;
  margin-top: 12px;
}

.epf-btn {
  padding: 11px 16px;
  border-radius: 10px;
  font-weight: 700;
  font-size: 0.92rem;
  border: none;
  cursor: pointer;
  font-family: inherit;
}

.epf-btn--primary {
  flex: 1;
  background: var(--epf-brand);
  color: #fff;
  box-shadow: 0 4px 14px rgba(61, 133, 198, 0.3);
}

.epf-btn--primary:hover {
  background: var(--epf-brand-dark);
}

.epf-btn--ghost {
  background: var(--epf-solid);
  border: 1px solid var(--epf-brand-border);
  color: var(--epf-muted);
  padding-left: 14px;
  padding-right: 14px;
}

.epf-btn--sm {
  padding: 7px 14px;
  font-size: 0.8rem;
}

.epf-result[hidden],
.epf-empty[hidden] {
  display: none !important;
}

.epf-empty {
  text-align: center;
  color: var(--epf-muted);
  font-size: 0.85rem;
  padding: 16px 8px;
}

.epf-hero-result {
  text-align: center;
  background: linear-gradient(145deg, var(--epf-brand) 0%, var(--epf-brand-dark) 100%);
  border-radius: var(--epf-radius);
  padding: 20px 16px;
  margin-bottom: 10px;
  color: #fff;
  box-shadow: 0 12px 32px rgba(61, 133, 198, 0.35);
  animation: epfIn 0.3s ease;
}

@keyframes epfIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.epf-hero-result span {
  display: block;
  font-size: 0.8rem;
  opacity: 0.9;
  margin-bottom: 4px;
}

.epf-hero-result strong {
  display: block;
  font-size: clamp(1.4rem, 5vw, 1.85rem);
  font-weight: 800;
  letter-spacing: -0.02em;
}

.epf-hero-sub {
  font-size: 0.75rem;
  opacity: 0.8;
  margin-top: 6px;
}

.epf-stat-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 10px;
}

.epf-stat {
  background: var(--epf-surface);
  border: 1px solid var(--epf-brand-border);
  border-radius: 12px;
  padding: 12px;
  box-shadow: var(--epf-shadow);
}

.epf-stat label {
  display: block;
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--epf-muted);
  margin-bottom: 4px;
}

.epf-stat strong {
  display: block;
  font-size: 1rem;
  font-weight: 800;
  color: var(--epf-brand);
}

.epf-stat--highlight {
  background: var(--epf-green-bg);
  border-color: #86efac;
}

.epf-stat--highlight strong {
  color: var(--epf-green);
}

.epf-breakdown {
  background: var(--epf-surface);
  border: 1px solid var(--epf-brand-border);
  border-radius: var(--epf-radius);
  padding: 12px 14px;
  margin-bottom: 10px;
  box-shadow: var(--epf-shadow);
}

.epf-breakdown h3 {
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--epf-brand-dark);
  margin: 0 0 10px;
}

.epf-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
  border-bottom: 1px solid rgba(182, 213, 242, 0.5);
  font-size: 0.85rem;
}

.epf-row:last-child {
  border-bottom: none;
  font-weight: 800;
  color: var(--epf-brand-dark);
  padding-top: 10px;
}

.epf-row span:last-child {
  font-weight: 700;
  color: var(--epf-brand);
}

.epf-schedule {
  margin-bottom: 10px;
}

.epf-schedule summary {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--epf-brand-dark);
  cursor: pointer;
  padding: 8px 0;
}

.epf-table-wrap {
  overflow-x: auto;
  margin-top: 8px;
}

.epf-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.78rem;
}

.epf-table th,
.epf-table td {
  padding: 8px 10px;
  text-align: right;
  border-bottom: 1px solid var(--epf-brand-border);
}

.epf-table th:first-child,
.epf-table td:first-child {
  text-align: left;
}

.epf-table th {
  font-size: 0.65rem;
  text-transform: uppercase;
  color: var(--epf-brand-dark);
}

.epf-result-actions {
  display: flex;
  justify-content: center;
  margin-bottom: 8px;
}

.epf-toast {
  position: fixed;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%) translateY(12px);
  padding: 10px 16px;
  border-radius: 10px;
  font-size: 0.85rem;
  font-weight: 600;
  z-index: 9999;
  opacity: 0;
  transition: opacity 0.25s, transform 0.25s;
}

.epf-toast.is-visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.epf-toast--success { background: #166534; color: #fff; }
.epf-toast--warning { background: #b45309; color: #fff; }
.epf-toast--error { background: #b91c1c; color: #fff; }

@media (max-width: 400px) {
  .epf-form-grid {
    grid-template-columns: 1fr;
  }
}