/* Supreme Finance Calculators — calculators.css */

:root {
  --sfc-primary: #1a3a6b;
  --sfc-accent: #f59e0b;
  --sfc-accent-hover: #d97706;
  --sfc-text: #1f2937;
  --sfc-muted: #6b7280;
  --sfc-border: #e5e7eb;
  --sfc-bg: #ffffff;
  --sfc-bg-light: #f9fafb;
  --sfc-bg-hover: #f3f4f6;
  --sfc-success: #22c55e;
  --sfc-danger: #ef4444;
  --sfc-radius: 12px;
  --sfc-shadow: 0 4px 24px rgba(0,0,0,0.08);
}

/* Base */
.sfc-calc,
.sfc-calculator,
.sfc-hub {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: var(--sfc-text);
  box-sizing: border-box;
}

.sfc-calc *,
.sfc-calculator *,
.sfc-hub * {
  box-sizing: border-box;
}

/* Single Calculator Card */
.sfc-calc,
.sfc-calculator {
  max-width: 640px;
  margin: 0 auto 24px;
}

/* Card */
.sfc-card {
  background: var(--sfc-bg);
  border: 1px solid var(--sfc-border);
  border-radius: var(--sfc-radius);
  box-shadow: var(--sfc-shadow);
  overflow: hidden;
}

/* Card Header */
.sfc-card__header {
  padding: 28px 32px 22px;
  border-bottom: 1px solid var(--sfc-border);
  background: var(--sfc-bg-light);
  position: relative;
}

.sfc-card__header::after {
  content: '';
  position: absolute;
  bottom: 0; left: 32px;
  width: 48px; height: 3px;
  background: var(--sfc-accent);
  border-radius: 2px;
}

.sfc-card__title,
.sfc-calc-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--sfc-primary);
  margin: 0 0 4px;
}

.sfc-card__subtitle {
  font-size: 0.82rem;
  color: var(--sfc-muted);
  margin: 0;
  font-weight: 400;
}

/* Card Body */
.sfc-card__body {
  padding: 28px 32px;
}

/* Form */
.sfc-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px 24px;
}

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

/* Field */
.sfc-field {
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.sfc-label,
.sfc-field label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--sfc-text);
}

.sfc-label {
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--sfc-muted);
}

.sfc-field-group {
  border: 1px solid var(--sfc-border);
  border-radius: 8px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  background: var(--sfc-bg-light);
}

.sfc-group-label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--sfc-primary);
}

.sfc-field-inline {
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
}

.sfc-field-inline label { margin-bottom: 0; }

/* Grid for responsive layouts */
.sfc-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 16px;
}

/* Inputs */
.sfc-input-wrap {
  position: relative;
  display: flex;
  align-items: center;
}

.sfc-prefix, .sfc-suffix {
  position: absolute;
  font-weight: 600;
  color: var(--sfc-muted);
  font-size: 0.9rem;
  pointer-events: none;
  user-select: none;
}

.sfc-prefix { left: 12px; }
.sfc-suffix { right: 12px; }

.sfc-input,
input[type="number"],
input[type="text"],
select {
  width: 100%;
  padding: 10px 14px;
  border: 1.5px solid var(--sfc-border);
  border-radius: 8px;
  font-size: 0.95rem;
  color: var(--sfc-text);
  background: var(--sfc-bg);
  transition: border-color 0.2s, box-shadow 0.2s;
  appearance: none;
  -webkit-appearance: none;
}

.sfc-input:focus,
input[type="number"]:focus,
input[type="text"]:focus,
select:focus {
  outline: none;
  border-color: var(--sfc-primary);
  box-shadow: 0 0 0 3px rgba(26,58,107,0.1);
}

.sfc-input.has-prefix,
.sfc-input-wrap input { padding-left: 34px; }

.sfc-input.has-suffix,
.sfc-input-wrap input:has(~ .sfc-suffix) { padding-right: 36px; }

.sfc-select,
select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%236b7280' stroke-width='2' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
  cursor: pointer;
}

/* Remove number input spinners */
input[type=number]::-webkit-inner-spin-button,
input[type=number]::-webkit-outer-spin-button { -webkit-appearance: none; }
input[type=number] { -moz-appearance: textfield; }

/* Radio/Checkbox Groups */
.sfc-radio-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.sfc-radio-group label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 400;
  cursor: pointer;
}

.sfc-radio-group input[type="radio"],
.sfc-radio-group input[type="checkbox"] {
  width: auto;
  margin: 0;
}

/* Range Slider */
.sfc-range {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 4px;
  border-radius: 4px;
  background: var(--sfc-border);
  outline: none;
  margin-top: 6px;
  cursor: pointer;
  border: none;
  padding: 0;
}

.sfc-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--sfc-primary);
  border: 2px solid #fff;
  cursor: pointer;
  box-shadow: 0 2px 6px rgba(26,58,107,0.35);
}

.sfc-range-val {
  font-size: 0.8rem;
  color: var(--sfc-primary);
  font-weight: 600;
  text-align: right;
  margin-top: 4px;
}

/* Button */
.sfc-btn {
  grid-column: 1 / -1;
  padding: 13px 28px;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.2s, transform 0.1s;
  letter-spacing: 0.01em;
  margin-top: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.sfc-calculate-btn,
.sfc-btn {
  background: var(--sfc-primary);
  color: #fff;
}

.sfc-calculate-btn:hover,
.sfc-btn:hover {
  background: #0f2548;
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(26,58,107,0.3);
}

.sfc-calculate-btn:active,
.sfc-btn:active { transform: translateY(0); }

.sfc-calculate-btn:disabled,
.sfc-btn:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

/* Results */
.sfc-results {
  grid-column: 1 / -1;
  margin-top: 24px;
  padding: 22px 0 0;
  border-top: 1px solid var(--sfc-border);
  display: none;
}

.sfc-results.sfc-results--visible { display: block; }

.sfc-results__title,
.sfc-result-hero {
  background: linear-gradient(135deg, var(--sfc-primary) 0%, #2c5282 100%);
  color: #fff;
  border-radius: 10px;
  padding: 24px 28px;
  text-align: center;
  margin-bottom: 16px;
}

.sfc-results__title {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 10px 16px;
  border-radius: 6px;
  margin-bottom: 14px;
  text-align: left;
}

.sfc-result-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  opacity: 0.8;
  margin-bottom: 6px;
}

.sfc-result-value {
  display: block;
  font-size: 2.2rem;
  font-weight: 800;
  line-height: 1.1;
}

.sfc-result-sub {
  display: block;
  font-size: 0.85rem;
  opacity: 0.75;
  margin-top: 4px;
  text-transform: capitalize;
}

.sfc-results__grid,
.sfc-result-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 12px;
}

.sfc-result-item,
.sfc-result-card {
  background: var(--sfc-bg-light);
  border: 1px solid var(--sfc-border);
  border-radius: 8px;
  padding: 14px 16px;
}

.sfc-result-item__label,
.sfc-result-card span {
  display: block;
  font-size: 0.78rem;
  color: var(--sfc-muted);
  font-weight: 500;
  margin-bottom: 4px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.sfc-result-item__value,
.sfc-result-card strong {
  display: block;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--sfc-primary);
}

.sfc-result-card.sfc-highlight {
  border-color: var(--sfc-accent);
  background: #fffbeb;
}

.sfc-result-card.sfc-highlight strong { color: #92400e; }

.sfc-disclaimer {
  margin-top: 16px;
  font-size: 0.78rem;
  color: var(--sfc-muted);
  line-height: 1.5;
  border-top: 1px solid var(--sfc-border);
  padding-top: 12px;
}

.sfc-note,
.sfc-info-note {
  font-size: 0.875rem;
  line-height: 1.5;
  padding: 12px;
  background: #f0f9ff;
  border-left: 4px solid var(--sfc-primary);
  border-radius: 4px;
  margin: 12px 0;
}

/* Error */
.sfc-error {
  margin-top: 16px;
  padding: 12px 16px;
  background: #fee2e2;
  border: 1px solid #fca5a5;
  border-radius: 8px;
  color: #b91c1c;
  font-size: 0.9rem;
  font-weight: 500;
}

/* Hub Tabs */
.sfc-hub { max-width: 720px; margin: 0 auto; }

.sfc-tab-nav,
.sfc-hub-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  background: var(--sfc-bg-light);
  border: 1px solid var(--sfc-border);
  border-radius: var(--sfc-radius) var(--sfc-radius) 0 0;
  padding: 8px 8px 0;
  border-bottom: none;
}

.sfc-tab-btn,
.sfc-tab {
  padding: 8px 14px;
  border: none;
  border-radius: 6px 6px 0 0;
  background: transparent;
  color: var(--sfc-muted);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
  font-family: inherit;
  letter-spacing: 0.02em;
  text-transform: none;
}

.sfc-tab-btn:hover,
.sfc-tab:hover { background: var(--sfc-bg-hover); color: var(--sfc-primary); }

.sfc-tab-btn.sfc-tab--active,
.sfc-tab.active {
  background: var(--sfc-bg);
  color: var(--sfc-primary);
  border: 1px solid var(--sfc-border);
  border-bottom: 1px solid var(--sfc-bg);
  margin-bottom: -1px;
}

.sfc-tab-panels {
  border: 1px solid var(--sfc-border);
  border-radius: 0 var(--sfc-radius) var(--sfc-radius) var(--sfc-radius);
  background: var(--sfc-bg);
}

.sfc-tab-panel,
.sfc-panel { display: block; }

.sfc-tab-panel.hidden,
.sfc-panel:not(.active) { display: none; }

/* In hub, remove card shadow/border from inner calculators */
.sfc-hub .sfc-calc,
.sfc-hub .sfc-calculator {
  max-width: 100%;
  margin: 0;
}

.sfc-hub .sfc-card {
  box-shadow: none;
  border: none;
  border-radius: 0;
}

/* Section Title */
.sfc-section-title {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--sfc-primary);
  margin: 12px 0 8px;
}

/* After IO Info */
.sfc-after-io-info {
  margin: 15px 0;
  padding: 12px;
  background: #f0f9ff;
  border-left: 4px solid #0073aa;
  border-radius: 4px;
  font-size: 0.9em;
}

/* Divi Compatibility */
.et_pb_module .sfc-calc,
.et_pb_module .sfc-calculator,
.et_pb_text .sfc-calc,
.et_pb_text .sfc-calculator {
  margin: 0 auto 24px;
}

.sfc-calc input,
.sfc-calc select,
.sfc-calc button,
.sfc-calculator input,
.sfc-calculator select,
.sfc-calculator button {
  font-family: inherit;
}

/* Loading spinner */
@keyframes sfc-spin {
  to { transform: rotate(360deg); }
}

.sfc-spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: sfc-spin 0.7s linear infinite;
  vertical-align: middle;
  margin-right: 8px;
}

/* Responsive */
@media (max-width: 768px) {
  .sfc-card__body { padding: 24px; }
  .sfc-card__header { padding: 22px 24px 18px; }
  .sfc-grid { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
  .sfc-card__body { padding: 20px 16px; }
  .sfc-card__header { padding: 18px 16px 14px; }
  .sfc-card__title,
  .sfc-calc-title { font-size: 1.1rem; }
  .sfc-results__grid,
  .sfc-result-grid { grid-template-columns: 1fr 1fr; }
  .sfc-result-value { font-size: 1.7rem; }
  .sfc-result-hero { padding: 18px 16px; }
  .sfc-tab-nav,
  .sfc-hub-tabs { gap: 2px; }
  .sfc-tab-btn,
  .sfc-tab { padding: 7px 9px; font-size: 0.75rem; }
  .sfc-form { gap: 12px; }
  .sfc-field-group { padding: 12px; }
  .sfc-input,
  input[type="number"],
  input[type="text"],
  select { font-size: 16px; }
}

@media (max-width: 540px) {
  .sfc-form { grid-template-columns: 1fr; }
}

@media (max-width: 420px) {
  .sfc-card__body { padding: 16px 12px; }
  .sfc-results__grid,
  .sfc-result-grid { grid-template-columns: 1fr; }
  .sfc-result-value { font-size: 1.5rem; }
  .sfc-result-item,
  .sfc-result-card { padding: 10px 12px; }
  .sfc-result-item__value,
  .sfc-result-card strong { font-size: 0.95rem; }
  .sfc-tab-btn,
  .sfc-tab { font-size: 0.7rem; padding: 6px 7px; }
  .sfc-btn { padding: 11px 20px; font-size: 0.9rem; }
}