/* Kaamlab US Tools Shared Stylesheet */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root {
  --primary: #2563EB;
  --primary-hover: #1D4ED8;
  --primary-light: #EFF6FF;
  --primary-border: #BFDBFE;
  
  --bg-main: #FFFFFF;
  --bg-subtle: #F9FAFB;
  --bg-card: #FFFFFF;
  
  --text-main: #111827;
  --text-muted: #4B5563;
  --text-light: #6B7280;
  
  --border: #E5E7EB;
  --border-focus: #2563EB;
  
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.15s ease;
}

a:hover {
  color: var(--primary-hover);
}

/* Header & Nav */
.nav-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: #FFFFFF;
  border-bottom: 1px solid var(--border);
  height: 64px;
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--text-main);
}

.nav-logo-img {
  height: 32px;
  width: auto;
}

.nav-logo .nav-logo-light {
  display: block;
}

.nav-logo .nav-logo-dark {
  display: none;
}

html[data-theme="dark-obsidian"] .nav-logo .nav-logo-light,
html[data-theme="night"] .nav-logo .nav-logo-light,
html[data-theme="dark"] .nav-logo .nav-logo-light {
  display: none;
}

html[data-theme="dark-obsidian"] .nav-logo .nav-logo-dark,
html[data-theme="night"] .nav-logo .nav-logo-dark,
html[data-theme="dark"] .nav-logo .nav-logo-dark {
  display: block;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) .nav-logo .nav-logo-light {
    display: none;
  }
  :root:not([data-theme]) .nav-logo .nav-logo-dark {
    display: block;
  }
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-link {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color 0.15s ease;
}

.nav-link:hover, .nav-link.active {
  color: var(--primary);
}

.nav-cta {
  background-color: var(--primary);
  color: #FFFFFF;
  font-size: 0.875rem;
  font-weight: 600;
  padding: 0.5rem 1.25rem;
  border-radius: 9999px;
  transition: background-color 0.15s ease;
}

.nav-cta:hover {
  background-color: var(--primary-hover);
  color: #FFFFFF;
}

.nav-hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  flex-direction: column;
  gap: 5px;
}

.nav-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background-color: var(--text-main);
  border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

/* Main Container Layouts */
.tools-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem 5rem;
}

/* Breadcrumbs */
.breadcrumb-nav {
  margin-bottom: 1.5rem;
  font-size: 0.875rem;
  color: var(--text-light);
}

.breadcrumb-list {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  list-style: none;
}

.breadcrumb-item a {
  color: var(--text-light);
}

.breadcrumb-item a:hover {
  color: var(--primary);
}

.breadcrumb-separator {
  color: var(--text-light);
  user-select: none;
}

.breadcrumb-current {
  color: var(--text-main);
  font-weight: 500;
}

/* Page Headers */
.tool-header {
  margin-bottom: 2.5rem;
  max-width: 800px;
}

.tool-badge {
  display: inline-block;
  background-color: var(--primary-light);
  color: var(--primary);
  font-size: 0.8125rem;
  font-weight: 600;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  margin-bottom: 0.75rem;
  border: 1px solid var(--primary-border);
}

.tool-title {
  font-size: 2.25rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--text-main);
  line-height: 1.2;
  margin-bottom: 0.75rem;
}

.tool-subtitle {
  font-size: 1.125rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Country Selector Section */
.country-selector-wrapper {
  background-color: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  margin-bottom: 2.5rem;
  box-shadow: var(--shadow-sm);
}

.country-selector-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.country-selector-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.country-active-badge {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--primary);
  background-color: var(--primary-light);
  border: 1px solid var(--primary-border);
  padding: 0.35rem 0.85rem;
  border-radius: 9999px;
  display: flex;
  align-items: center;
  gap: 0.375rem;
}

.country-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 0.75rem;
}

.country-btn {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  background-color: #FFFFFF;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  padding: 0.625rem 0.875rem;
  cursor: pointer;
  text-align: left;
  transition: all 0.15s ease;
  font-family: inherit;
  width: 100%;
}

.country-btn:hover {
  border-color: var(--primary);
  background-color: var(--primary-light);
}

.country-btn.active {
  border-color: var(--primary);
  background-color: var(--primary-light);
  box-shadow: 0 0 0 1px var(--primary);
}

.country-flag {
  font-size: 1.35rem;
  line-height: 1;
}

.country-info {
  display: flex;
  flex-direction: column;
}

.country-name {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-main);
  line-height: 1.2;
}

.country-code {
  font-size: 0.75rem;
  color: var(--text-light);
  font-weight: 500;
}

/* Hub Grid Layout */
.hub-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.hub-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
  box-shadow: var(--shadow-sm);
}

.hub-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary-border);
}

.hub-card-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 0.5rem;
}

.hub-card-desc {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 1.25rem;
}

.hub-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

.hub-price-tag {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--primary);
}

.hub-card-btn {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

/* Calculator Grid Layout (Left Inputs, Right Output) */
.calc-layout {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 2.5rem;
  align-items: start;
}

/* Form Controls */
.calc-inputs {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-label {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-main);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.form-sublabel {
  font-size: 0.8125rem;
  font-weight: 400;
  color: var(--text-light);
}

.form-hint {
  font-size: 0.8125rem;
  color: var(--text-light);
  margin-top: 0.25rem;
}

.form-select, .form-input {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: inherit;
  font-size: 0.9375rem;
  color: var(--text-main);
  background-color: #FFFFFF;
  border: 1px solid var(--border);
  border-radius: var(--r-sm, var(--radius-sm));
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.form-select:focus, .form-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

/* Segmented / Option Cards Group */
.option-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 0.75rem;
}

.option-card {
  position: relative;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.875rem 1rem;
  cursor: pointer;
  transition: all 0.15s ease;
  background-color: #FFFFFF;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  user-select: none;
}

.option-card input[type="radio"],
.option-card input[type="checkbox"] {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.option-card:hover {
  border-color: var(--primary-border);
  background-color: var(--bg-subtle);
}

.option-card.selected {
  border-color: var(--primary);
  background-color: var(--primary-light);
}

.option-title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-main);
}

.option-card.selected .option-title {
  color: var(--primary);
}

.option-desc {
  font-size: 0.75rem;
  color: var(--text-light);
  margin-top: 0.25rem;
}

/* Range Slider */
.range-container {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.range-slider {
  width: 100%;
  accent-color: var(--primary);
  height: 6px;
  border-radius: 3px;
  cursor: pointer;
}

.range-value-display {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--primary);
}

/* Checkbox Toggle Group */
.toggle-group {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.checkbox-card {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.875rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background-color: #FFFFFF;
  cursor: pointer;
  transition: border-color 0.15s ease, background-color 0.15s ease;
}

.checkbox-card:hover {
  border-color: var(--primary-border);
}

.checkbox-card.selected {
  border-color: var(--primary-border);
  background-color: var(--primary-light);
}

.checkbox-card input[type="checkbox"] {
  accent-color: var(--primary);
  width: 18px;
  height: 18px;
  margin-top: 2px;
  cursor: pointer;
}

.checkbox-label-text {
  display: flex;
  flex-direction: column;
}

.checkbox-title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-main);
}

.checkbox-desc {
  font-size: 0.75rem;
  color: var(--text-light);
}

/* Right Result Sticky Box */
.calc-result-box {
  position: sticky;
  top: 84px;
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.result-header {
  border-bottom: 1px solid var(--border);
  padding-bottom: 1rem;
}

.result-tag {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-light);
}

.result-price-range {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: -0.02em;
  margin-top: 0.25rem;
  line-height: 1.2;
}

.result-price-period {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted);
}

.result-breakdown {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
  font-size: 0.875rem;
}

.breakdown-row {
  display: flex;
  justify-content: space-between;
  color: var(--text-muted);
}

.breakdown-row span:last-child {
  font-weight: 600;
  color: var(--text-main);
}

.result-cta-block {
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.btn-cta-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 0.875rem 1.25rem;
  background-color: var(--primary);
  color: #FFFFFF;
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: background-color 0.15s ease;
  text-align: center;
  border: none;
  cursor: pointer;
}

.btn-cta-primary:hover {
  background-color: var(--primary-hover);
  color: #FFFFFF;
}

.btn-cta-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 0.75rem 1.25rem;
  background-color: transparent;
  color: var(--text-muted);
  font-size: 0.875rem;
  font-weight: 500;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: all 0.15s ease;
  text-align: center;
}

.btn-cta-secondary:hover {
  border-color: var(--primary-border);
  color: var(--primary);
  background-color: var(--primary-light);
}

.disclaimer-text {
  font-size: 0.75rem;
  color: var(--text-light);
  line-height: 1.4;
}

/* Related Tools Section */
.related-section {
  margin-top: 4rem;
  padding-top: 3rem;
  border-top: 1px solid var(--border);
}

.section-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 1.5rem;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1.25rem;
}

.related-card {
  padding: 1.25rem;
  background-color: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: all 0.15s ease;
}

.related-card:hover {
  border-color: var(--primary-border);
  background-color: #FFFFFF;
  box-shadow: var(--shadow-sm);
}

.related-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 0.25rem;
}

.related-link {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

/* Content & FAQ Section */
.content-section {
  margin-top: 3rem;
  line-height: 1.7;
}

.content-section h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-main);
}

.content-section p {
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  margin-top: 1.5rem;
}

.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 1.25rem;
  background-color: #FFFFFF;
}

.faq-question {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 0.5rem;
}

.faq-answer {
  font-size: 0.9375rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Footer */
.site-footer {
  background-color: var(--bg-subtle);
  border-top: 1px solid var(--border);
  padding: 3rem 1.5rem;
  margin-top: 4rem;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.875rem;
  color: var(--text-light);
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}

/* Mobile Responsiveness */
@media (max-width: 900px) {
  .calc-layout {
    grid-template-columns: 1fr;
  }
  
  .calc-result-box {
    position: static;
    order: -1; /* Place result on top or underneath as needed, or keep order 0 */
  }
}

@media (max-width: 768px) {
  .nav-hamburger {
    display: flex;
  }
  
  .nav-links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background-color: #FFFFFF;
    flex-direction: column;
    padding: 1.5rem;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-md);
  }
  
  .nav-links.active {
    display: flex;
  }

  .tool-title {
    font-size: 1.75rem;
  }
}