/**
 * EuroCalc Tools - Modern European Design System v2.1.0
 * High-End European Utility & Fintech Aesthetics
 * Mobile-First, Touch-Optimized, 0.00 CLS Architecture
 * Built-in LLM SEO / GEO (Generative Engine Optimization) Visual Modules
 */

:root {
  --ec-font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --ec-font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  /* Modern Euro Color Scheme */
  --ec-bg: #f8fafc;
  --ec-card-bg: #ffffff;
  --ec-card-border: #e2e8f0;
  --ec-card-hover: #f1f5f9;

  --ec-text-main: #0f172a;
  --ec-text-muted: #334155;
  --ec-text-light: #64748b;

  --ec-brand: #2563eb;
  --ec-brand-hover: #1d4ed8;
  --ec-brand-light: #eff6ff;
  --ec-brand-border: #bfdbfe;

  --ec-success: #059669;
  --ec-success-light: #ecfdf5;
  --ec-success-border: #a7f3d0;

  --ec-warning: #d97706;
  --ec-warning-light: #fffbeb;

  --ec-danger: #dc2626;
  --ec-danger-light: #fef2f2;

  --ec-radius-sm: 8px;
  --ec-radius-md: 12px;
  --ec-radius-lg: 18px;
  --ec-radius-full: 9999px;

  --ec-shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.05), 0 1px 2px -1px rgba(0, 0, 0, 0.05);
  --ec-shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.08), 0 2px 4px -2px rgba(15, 23, 42, 0.05);
  --ec-shadow-lg: 0 12px 24px -4px rgba(15, 23, 42, 0.08), 0 4px 8px -4px rgba(15, 23, 42, 0.04);

  --ec-focus-ring: 0 0 0 3px rgba(37, 99, 235, 0.25);
}

/* Base wrapper */
.eurocalc-wrap,
.eurocalc-wrap * {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

.eurocalc-wrap {
  font-family: var(--ec-font-sans);
  color: var(--ec-text-main);
  background-color: var(--ec-bg);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  padding: 1.25rem 1rem 3.5rem 1rem;
  max-width: 1200px;
  margin: 0 auto;
}

/* Breadcrumbs */
.eurocalc-breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--ec-text-light);
  margin-bottom: 1.25rem;
}
.eurocalc-breadcrumbs a {
  color: var(--ec-brand);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.15s ease;
}
.eurocalc-breadcrumbs a:hover {
  text-decoration: underline;
}

/* Hero Section */
.eurocalc-hero {
  margin-bottom: 2rem;
}
.eurocalc-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.35rem 0.85rem;
  background-color: var(--ec-brand-light);
  color: var(--ec-brand);
  border: 1px solid var(--ec-brand-border);
  border-radius: var(--ec-radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 0.75rem;
}
.eurocalc-title {
  font-size: 1.875rem;
  font-weight: 800;
  line-height: 1.25;
  color: var(--ec-text-main);
  margin-bottom: 0.625rem;
  letter-spacing: -0.025em;
}
@media (min-width: 768px) {
  .eurocalc-title {
    font-size: 2.5rem;
  }
}
.eurocalc-sub {
  font-size: 1.0625rem;
  color: var(--ec-text-muted);
  max-width: 52rem;
  line-height: 1.6;
}

/* Country Selector Pills Bar (Quick Switch) */
.eurocalc-country-bar {
  display: flex;
  overflow-x: auto;
  gap: 0.5rem;
  padding: 0.5rem 0.25rem;
  margin-bottom: 1.5rem;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}
.eurocalc-country-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.4rem 0.85rem;
  background: #ffffff;
  border: 1px solid var(--ec-card-border);
  border-radius: var(--ec-radius-full);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--ec-text-main);
  text-decoration: none;
  white-space: nowrap;
  transition: all 0.15s ease;
  box-shadow: var(--ec-shadow-sm);
}
.eurocalc-country-pill:hover {
  border-color: var(--ec-brand);
  color: var(--ec-brand);
  background: var(--ec-brand-light);
}
.eurocalc-country-pill.active {
  background: var(--ec-brand);
  border-color: var(--ec-brand);
  color: #ffffff;
}

/* Main Calculator Card */
.eurocalc-card {
  background-color: var(--ec-card-bg);
  border: 1px solid var(--ec-card-border);
  border-radius: var(--ec-radius-lg);
  box-shadow: var(--ec-shadow-md);
  overflow: hidden;
  margin-bottom: 2rem;
}

.calc-grid {
  display: grid;
  grid-template-columns: 1fr;
}
@media (min-width: 860px) {
  .calc-grid {
    grid-template-columns: 1.15fr 0.85fr;
  }
}

/* Mobile Live Result Bar (Instant Visual Feedback on Mobile) */
.mobile-live-summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.875rem 1.25rem;
  background: linear-gradient(135deg, #1e3a8a, #2563eb);
  color: #ffffff;
  font-size: 0.875rem;
  font-weight: 600;
}
@media (min-width: 860px) {
  .mobile-live-summary {
    display: none; /* Desktop uses side pane */
  }
}
.mobile-live-summary-val {
  font-size: 1.375rem;
  font-weight: 800;
  color: #ffffff;
  letter-spacing: -0.02em;
}

/* Input Pane */
.calc-pane-inputs {
  padding: 1.25rem;
}
@media (min-width: 860px) {
  .calc-pane-inputs {
    padding: 2rem;
    border-right: 1px solid var(--ec-card-border);
  }
}

.form-group {
  margin-bottom: 1.25rem;
}
.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--ec-text-main);
  margin-bottom: 0.4rem;
}

.form-input,
.form-select {
  width: 100%;
  min-height: 48px; /* Touch target */
  padding: 0.65rem 0.95rem;
  font-size: 1rem;
  color: var(--ec-text-main);
  background-color: #ffffff;
  border: 1px solid #cbd5e1;
  border-radius: var(--ec-radius-sm);
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.form-input:focus,
.form-select:focus {
  border-color: var(--ec-brand);
  box-shadow: var(--ec-focus-ring);
}

.input-with-symbol {
  position: relative;
  display: flex;
  align-items: center;
}
.input-with-symbol .symbol-prefix {
  position: absolute;
  left: 0.95rem;
  color: var(--ec-text-light);
  font-weight: 600;
  pointer-events: none;
}
.input-with-symbol input {
  padding-left: 2.25rem;
}

/* Toggle Group & Chips */
.toggle-group {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.toggle-label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  min-height: 44px;
  padding: 0.5rem 0.875rem;
  background-color: #f8fafc;
  border: 1px solid var(--ec-card-border);
  border-radius: var(--ec-radius-sm);
  cursor: pointer;
  font-size: 0.875rem;
  font-weight: 500;
  transition: all 0.15s ease;
}
.toggle-label:hover {
  background-color: var(--ec-brand-light);
  border-color: var(--ec-brand-border);
}
.toggle-label input[type="radio"],
.toggle-label input[type="checkbox"] {
  accent-color: var(--ec-brand);
  width: 1.125rem;
  height: 1.125rem;
}

.preset-chips-wrap {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-top: 0.5rem;
}
.preset-chip-btn {
  min-height: 40px;
  padding: 0.4rem 0.85rem;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--ec-text-muted);
  background: #f1f5f9;
  border: 1px solid #cbd5e1;
  border-radius: var(--ec-radius-full);
  cursor: pointer;
  transition: all 0.15s ease;
}
.preset-chip-btn:hover {
  background: var(--ec-brand-light);
  color: var(--ec-brand);
  border-color: var(--ec-brand);
}
.preset-chip-btn.active {
  background: var(--ec-brand);
  color: #ffffff;
  border-color: var(--ec-brand);
}

/* Results Pane */
.calc-pane-results {
  background-color: #f8fafc;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
@media (min-width: 860px) {
  .calc-pane-results {
    padding: 2rem;
  }
}

.results-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.25rem;
}
.results-header h3 {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--ec-text-main);
}
.btn-copy-sm {
  min-height: 36px;
  padding: 0.35rem 0.85rem;
  background: #ffffff;
  border: 1px solid #cbd5e1;
  border-radius: var(--ec-radius-sm);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--ec-brand);
  cursor: pointer;
  transition: all 0.15s ease;
}
.btn-copy-sm:hover {
  background: var(--ec-brand);
  color: #ffffff;
  border-color: var(--ec-brand);
}

.result-card-main {
  background-color: #ffffff;
  border: 1px solid var(--ec-card-border);
  border-radius: var(--ec-radius-md);
  padding: 1.35rem;
  margin-bottom: 1.25rem;
  box-shadow: var(--ec-shadow-sm);
}
.result-card-label {
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--ec-text-light);
  margin-bottom: 0.375rem;
}
.result-highlight {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--ec-brand);
  line-height: 1.15;
  letter-spacing: -0.025em;
}
.result-highlight.val-positive {
  color: var(--ec-success);
}
.result-sub {
  font-size: 0.875rem;
  color: var(--ec-text-muted);
  margin-top: 0.4rem;
}

.results-stats-list {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
  margin-bottom: 1rem;
}
.stat-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem 0;
  border-bottom: 1px solid #e2e8f0;
  font-size: 0.875rem;
}
.stat-name {
  color: var(--ec-text-light);
}
.stat-value {
  font-weight: 700;
  color: var(--ec-text-main);
}
.stat-value.val-positive {
  color: var(--ec-success);
}

/* ==================== LLM SEO & GEO MODULES ==================== */
.llm-geo-box {
  background: #ffffff;
  border: 1px solid #cbd5e1;
  border-left: 5px solid var(--ec-brand);
  border-radius: var(--ec-radius-md);
  padding: 1.5rem;
  margin: 2rem 0;
  box-shadow: var(--ec-shadow-sm);
}
.llm-geo-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--ec-text-main);
  margin-bottom: 0.5rem;
}
.llm-direct-answer {
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--ec-text-main);
  margin-bottom: 1rem;
  font-weight: 500;
}
.llm-fact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0.75rem;
  margin-top: 1rem;
}
.llm-fact-card {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: var(--ec-radius-sm);
  padding: 0.75rem;
}
.llm-fact-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--ec-text-light);
  display: block;
}
.llm-fact-val {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--ec-brand);
  margin-top: 0.25rem;
  display: block;
}

/* Table styles */
.eurocalc-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}
.eurocalc-table th {
  background: #f8fafc;
  color: var(--ec-text-main);
  font-weight: 700;
  padding: 0.75rem 0.875rem;
  text-align: left;
  border-bottom: 2px solid #e2e8f0;
}
.eurocalc-table td {
  padding: 0.75rem 0.875rem;
  border-bottom: 1px solid #e2e8f0;
  color: var(--ec-text-muted);
}
.eurocalc-table tr:hover td {
  background: #f8fafc;
}

/* Content Sections */
.eurocalc-content-section {
  background: #ffffff;
  border: 1px solid var(--ec-card-border);
  border-radius: var(--ec-radius-lg);
  padding: 1.75rem 1.5rem;
  margin-bottom: 2rem;
  box-shadow: var(--ec-shadow-sm);
}
@media (min-width: 768px) {
  .eurocalc-content-section {
    padding: 2.25rem 2rem;
  }
}
.eurocalc-content-section h2 {
  font-size: 1.375rem;
  font-weight: 800;
  color: var(--ec-text-main);
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}
.eurocalc-content-section p {
  color: var(--ec-text-muted);
  line-height: 1.65;
  margin-bottom: 1rem;
  font-size: 0.95rem;
}

/* FAQ Accordion */
.faq-accordion {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 1rem;
}
.faq-item {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: var(--ec-radius-sm);
  overflow: hidden;
  transition: border-color 0.15s ease;
}
.faq-item[open] {
  border-color: var(--ec-brand-border);
  background: #ffffff;
}
.faq-item summary {
  padding: 1rem 1.25rem;
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--ec-text-main);
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.faq-item summary::-webkit-details-marker {
  display: none;
}
.faq-item summary::after {
  content: "+";
  font-size: 1.25rem;
  color: var(--ec-brand);
  font-weight: 700;
  transition: transform 0.2s ease;
}
.faq-item[open] summary::after {
  content: "−";
}
.faq-answer {
  padding: 0 1.25rem 1rem 1.25rem;
  font-size: 0.9375rem;
  color: var(--ec-text-muted);
  line-height: 1.6;
}

/* Related Calculators Grid */
.related-calcs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.25rem;
}
.related-calc-card {
  display: block;
  background: #ffffff;
  border: 1px solid var(--ec-card-border);
  border-radius: var(--ec-radius-md);
  padding: 1.25rem;
  text-decoration: none;
  transition: all 0.15s ease;
  box-shadow: var(--ec-shadow-sm);
}
.related-calc-card:hover {
  border-color: var(--ec-brand);
  transform: translateY(-2px);
  box-shadow: var(--ec-shadow-md);
}

/* Button actions */
.btn-calc-action {
  min-height: 44px;
  padding: 0.5rem 1.25rem;
  border-radius: var(--ec-radius-sm);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.15s ease;
}
.btn-calc-primary {
  background: var(--ec-brand);
  color: #ffffff;
}
.btn-calc-primary:hover {
  background: var(--ec-brand-hover);
}
.btn-calc-secondary {
  background: #ffffff;
  border-color: #cbd5e1;
  color: var(--ec-text-muted);
}
.btn-calc-secondary:hover {
  background: #f1f5f9;
  color: var(--ec-text-main);
}