/* =============================================
   Student Loan Calculator - Plugin Styles
   ============================================= */

:root {
  --slc-primary: #2563eb;
  --slc-primary-dark: #1d4ed8;
  --slc-secondary: #06b6d4;
  --slc-success: #059669;
  --slc-danger: #dc2626;
  --slc-warning: #d97706;
  --slc-gray-50: #f8fafc;
  --slc-gray-100: #f1f5f9;
  --slc-gray-200: #e2e8f0;
  --slc-gray-300: #cbd5e1;
  --slc-gray-500: #64748b;
  --slc-gray-700: #334155;
  --slc-gray-800: #1e293b;
  --slc-gray-900: #0f172a;
  --slc-radius: 16px;
  --slc-radius-sm: 10px;
  --slc-shadow: 0 4px 24px rgba(37,99,235,0.10), 0 2px 8px rgba(0,0,0,0.06);
  --slc-shadow-lg: 0 20px 60px rgba(37,99,235,0.15), 0 8px 25px rgba(0,0,0,0.08);
}

.slc-wrapper {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  max-width: 900px;
  margin: 0 auto;
  background: #fff;
  border-radius: var(--slc-radius);
  box-shadow: var(--slc-shadow-lg);
  overflow: hidden;
  border: 1px solid var(--slc-gray-200);
}

/* Header */
.slc-header {
  background: linear-gradient(135deg, #1e3a8a 0%, #2563eb 60%, #0891b2 100%);
  padding: 28px 32px;
  display: flex;
  align-items: center;
  gap: 18px;
  color: #fff;
}
.slc-header-icon {
  background: rgba(255,255,255,0.15);
  border-radius: 14px;
  padding: 12px;
  flex-shrink: 0;
}
.slc-header-icon svg {
  width: 32px;
  height: 32px;
  display: block;
}
.slc-header h2 {
  margin: 0 0 4px;
  font-size: 22px;
  font-weight: 800;
  color: #fff;
}
.slc-header p {
  margin: 0;
  font-size: 13px;
  color: rgba(255,255,255,0.8);
}

/* Tabs */
.slc-tabs {
  display: flex;
  border-bottom: 2px solid var(--slc-gray-200);
  background: var(--slc-gray-50);
  padding: 0 16px;
  gap: 4px;
  overflow-x: auto;
}
.slc-tab {
  background: none;
  border: none;
  padding: 14px 20px;
  font-size: 14px;
  font-weight: 600;
  color: var(--slc-gray-500);
  cursor: pointer;
  border-bottom: 3px solid transparent;
  margin-bottom: -2px;
  white-space: nowrap;
  transition: all 0.2s;
}
.slc-tab:hover { color: var(--slc-primary); }
.slc-tab-active { color: var(--slc-primary) !important; border-bottom-color: var(--slc-primary) !important; }

/* Tab Content */
.slc-tab-content { display: none; padding: 28px 32px; }
.slc-tab-content-active { display: block; }

/* Form Grid */
.slc-form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 24px;
}
@media (max-width: 600px) {
  .slc-form-grid { grid-template-columns: 1fr; }
  .slc-tab-content { padding: 20px 16px; }
  .slc-header { padding: 20px; }
}

/* Fields */
.slc-field label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--slc-gray-700);
  margin-bottom: 8px;
}
.slc-input-wrap {
  display: flex;
  align-items: center;
  border: 2px solid var(--slc-gray-200);
  border-radius: var(--slc-radius-sm);
  overflow: hidden;
  transition: border-color 0.2s;
  background: #fff;
}
.slc-input-wrap:focus-within { border-color: var(--slc-primary); box-shadow: 0 0 0 3px rgba(37,99,235,0.1); }
.slc-prefix, .slc-suffix {
  padding: 10px 12px;
  background: var(--slc-gray-100);
  font-size: 14px;
  font-weight: 600;
  color: var(--slc-gray-700);
  border-right: 1px solid var(--slc-gray-200);
  white-space: nowrap;
}
.slc-suffix { border-right: none; border-left: 1px solid var(--slc-gray-200); }
.slc-input {
  flex: 1;
  border: none;
  outline: none;
  padding: 10px 14px;
  font-size: 14px;
  color: var(--slc-gray-800);
  background: transparent;
  width: 100%;
  box-sizing: border-box;
}
.slc-select {
  border: none;
  outline: none;
  font-size: 14px;
  color: var(--slc-gray-800);
  background: transparent;
  width: 100%;
  padding: 10px 14px;
  cursor: pointer;
  appearance: auto;
}

/* Range Slider */
.slc-range-wrap { margin-top: 10px; }
.slc-range {
  -webkit-appearance: none;
  width: 100%;
  height: 4px;
  background: var(--slc-gray-200);
  border-radius: 2px;
  outline: none;
}
.slc-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  background: var(--slc-primary);
  border-radius: 50%;
  cursor: pointer;
  box-shadow: 0 2px 6px rgba(37,99,235,0.4);
  transition: transform 0.2s;
}
.slc-range::-webkit-slider-thumb:hover { transform: scale(1.2); }
.slc-range-labels {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: var(--slc-gray-500);
  margin-top: 4px;
}

/* Buttons */
.slc-btn-primary {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  padding: 14px 28px;
  background: linear-gradient(135deg, #2563eb, #0891b2);
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  border: none;
  border-radius: var(--slc-radius-sm);
  cursor: pointer;
  transition: all 0.3s;
  margin-bottom: 28px;
}
.slc-btn-primary svg { width: 20px; height: 20px; }
.slc-btn-primary:hover {
  background: linear-gradient(135deg, #1d4ed8, #0e7490);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(37,99,235,0.4);
}
.slc-btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: var(--slc-gray-100);
  color: var(--slc-gray-700);
  font-size: 13px;
  font-weight: 600;
  border: 1px solid var(--slc-gray-200);
  border-radius: var(--slc-radius-sm);
  cursor: pointer;
  transition: all 0.2s;
}
.slc-btn-secondary svg { width: 16px; height: 16px; }
.slc-btn-secondary:hover { background: var(--slc-gray-200); }

/* Results */
.slc-results { animation: slcFadeIn 0.4s ease; }
@keyframes slcFadeIn { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: translateY(0); } }

.slc-results-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}
@media (max-width: 500px) { .slc-results-grid { grid-template-columns: 1fr; } }

.slc-result-card {
  background: var(--slc-gray-50);
  border: 1px solid var(--slc-gray-200);
  border-radius: 14px;
  padding: 20px;
  text-align: center;
  transition: all 0.2s;
}
.slc-result-card:hover { box-shadow: var(--slc-shadow); transform: translateY(-2px); }
.slc-result-main {
  background: linear-gradient(135deg, #eff6ff, #dbeafe);
  border-color: #bfdbfe;
  grid-column: span 2;
}
@media (max-width: 500px) { .slc-result-main { grid-column: span 1; } }

.slc-result-label { font-size: 12px; font-weight: 600; color: var(--slc-gray-500); text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 6px; }
.slc-result-value { font-size: 28px; font-weight: 800; color: var(--slc-primary); }
.slc-result-main .slc-result-value { font-size: 38px; }
.slc-result-value-secondary { color: var(--slc-gray-800); }
.slc-result-value-red { color: var(--slc-danger); }
.slc-result-value-green { color: var(--slc-success); font-size: 18px; }
.slc-result-sub { font-size: 12px; color: var(--slc-gray-500); margin-top: 4px; }

/* Chart Section */
.slc-chart-section {
  display: flex;
  align-items: center;
  gap: 32px;
  padding: 24px;
  background: var(--slc-gray-50);
  border-radius: 14px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}
.slc-chart-container { flex-shrink: 0; }
.slc-chart-container canvas { display: block; }
.slc-chart-legend { flex: 1; min-width: 200px; }
.slc-legend-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 16px;
}
.slc-legend-dot { width: 14px; height: 14px; border-radius: 4px; flex-shrink: 0; margin-top: 2px; }
.slc-dot-blue { background: #2563eb; }
.slc-dot-red { background: #dc2626; }
.slc-legend-label { font-size: 13px; font-weight: 600; color: var(--slc-gray-700); }
.slc-legend-value { font-size: 17px; font-weight: 800; color: var(--slc-gray-800); margin-top: 2px; }
.slc-progress-bar-wrap { margin-top: 16px; }
.slc-progress-bar {
  height: 12px;
  border-radius: 6px;
  overflow: hidden;
  background: var(--slc-gray-200);
  display: flex;
}
.slc-progress-fill-principal { background: #2563eb; height: 100%; transition: width 0.6s ease; }
.slc-progress-fill-interest { background: #dc2626; height: 100%; transition: width 0.6s ease; }
.slc-progress-labels {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  font-weight: 600;
  color: var(--slc-gray-500);
  margin-top: 6px;
}

/* Actions */
.slc-actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* Amortization Table */
.slc-amortization-header { margin-bottom: 20px; }
.slc-amortization-header h3 { font-size: 20px; font-weight: 700; color: var(--slc-gray-800); margin: 0 0 6px; }
.slc-amortization-header p { font-size: 13px; color: var(--slc-gray-500); margin: 0; }

.slc-empty-state {
  text-align: center;
  padding: 48px 20px;
  color: var(--slc-gray-500);
}
.slc-empty-state svg {
  width: 64px;
  height: 64px;
  margin: 0 auto 12px;
  display: block;
  opacity: 0.4;
}
.slc-empty-state p { font-size: 15px; margin: 0; }

.slc-amortization-table-wrap {
  overflow-x: auto;
  border-radius: 12px;
  border: 1px solid var(--slc-gray-200);
}
.slc-amortization-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.slc-amortization-table thead th {
  background: linear-gradient(135deg, #1e3a8a, #2563eb);
  color: #fff;
  padding: 12px 16px;
  text-align: right;
  font-weight: 700;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}
.slc-amortization-table thead th:first-child { text-align: left; }
.slc-amortization-table tbody tr { border-bottom: 1px solid var(--slc-gray-100); }
.slc-amortization-table tbody tr:hover { background: var(--slc-gray-50); }
.slc-amortization-table tbody tr.slc-year-row { background: #eff6ff; font-weight: 600; }
.slc-amortization-table td {
  padding: 10px 16px;
  text-align: right;
  color: var(--slc-gray-700);
}
.slc-amortization-table td:first-child { text-align: left; color: var(--slc-gray-500); font-weight: 600; }
.slc-amortization-table td.slc-interest { color: var(--slc-danger); }
.slc-amortization-table td.slc-principal { color: var(--slc-success); }
.slc-show-all-btn {
  display: block;
  width: 100%;
  padding: 12px;
  background: var(--slc-gray-50);
  border: 1px solid var(--slc-gray-200);
  border-top: none;
  text-align: center;
  font-size: 13px;
  font-weight: 600;
  color: var(--slc-primary);
  cursor: pointer;
  border-radius: 0 0 12px 12px;
}
.slc-show-all-btn:hover { background: var(--slc-gray-100); }

/* Comparison */
.slc-comparison-header { margin-bottom: 20px; }
.slc-comparison-header h3 { font-size: 20px; font-weight: 700; color: var(--slc-gray-800); margin: 0 0 6px; }
.slc-comparison-header p { font-size: 13px; color: var(--slc-gray-500); margin: 0; }
.slc-comparison-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}
@media (max-width: 680px) { .slc-comparison-grid { grid-template-columns: 1fr; } }
.slc-compare-card {
  background: var(--slc-gray-50);
  border: 1px solid var(--slc-gray-200);
  border-radius: 14px;
  padding: 20px;
}
.slc-compare-card-header {
  font-size: 14px;
  font-weight: 700;
  color: var(--slc-primary);
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid #dbeafe;
}
.slc-compare-result {
  margin-top: 16px;
  padding: 12px;
  background: #fff;
  border-radius: 10px;
  border: 1px solid var(--slc-gray-200);
  font-size: 13px;
  display: none;
}
.slc-compare-result.slc-best { border-color: #6ee7b7; background: #f0fdf4; }
.slc-compare-result-row { display: flex; justify-content: space-between; margin-bottom: 6px; }
.slc-compare-result-label { color: var(--slc-gray-500); }
.slc-compare-result-value { font-weight: 700; color: var(--slc-gray-800); }
.slc-compare-table-wrap { margin-top: 24px; overflow-x: auto; }
.slc-compare-summary-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  background: #fff;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--slc-shadow);
}
.slc-compare-summary-table th {
  background: var(--slc-primary);
  color: #fff;
  padding: 14px 20px;
  text-align: left;
  font-weight: 700;
}
.slc-compare-summary-table td {
  padding: 12px 20px;
  border-bottom: 1px solid var(--slc-gray-100);
  color: var(--slc-gray-700);
}
.slc-compare-summary-table tr:last-child td { border-bottom: none; }
.slc-compare-summary-table tr:hover td { background: var(--slc-gray-50); }
.slc-badge-best { background: #6ee7b7; color: #065f46; padding: 3px 10px; border-radius: 20px; font-size: 12px; font-weight: 700; }

/* Footer */
.slc-footer {
  padding: 16px 32px;
  background: var(--slc-gray-50);
  border-top: 1px solid var(--slc-gray-200);
  text-align: center;
}
.slc-footer p {
  margin: 0;
  font-size: 12px;
  color: var(--slc-gray-500);
}

/* Print Styles */
@media print {
  .slc-tabs, .slc-btn-primary, .slc-btn-secondary, .slc-form-grid, .slc-header-icon { display: none !important; }
  .slc-wrapper { box-shadow: none; border: 1px solid #ccc; }
  .slc-results { display: block !important; }
}