/* ==========================================================================
   Pythagorean Theorem Calculator Component Styles
   ========================================================================== */

/* --------------------------------------------------------------------------
   HEADER & NAVIGATION
   -------------------------------------------------------------------------- */
/* Body lock when mobile drawer open */
body.mobile-nav-open {
  overflow: hidden;
}

.site-header {
  background-color: var(--primary-900);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: #ffffff;
  font-weight: 700;
  font-size: clamp(0.95rem, 4vw, 1.15rem);
  text-decoration: none !important;
}

.site-logo svg {
  color: var(--accent-amber);
  width: 32px;
  height: 32px;
  flex-shrink: 0;
}

.site-logo-text span {
  color: var(--accent-amber);
}

.desktop-nav {
  display: none;
  margin-left: auto;
}

.nav-list {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 1.15rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-link {
  color: #cbd5e1;
  font-weight: 500;
  font-size: 0.88rem;
  padding: 0.5rem 0.15rem;
  text-decoration: none !important;
  transition: color var(--transition-fast);
  position: relative;
  white-space: nowrap;
}

.nav-link:hover, .nav-link.active {
  color: #ffffff;
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--accent-amber);
  border-radius: 2px;
}

/* Dropdown Navigation */
.nav-item-dropdown {
  position: relative;
}

.dropdown-toggle {
  background: none;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 500;
  color: #cbd5e1;
  padding: 0.5rem 0.25rem;
  transition: color var(--transition-fast);
}

.dropdown-toggle:hover,
.nav-item-dropdown:hover .dropdown-toggle,
.dropdown-toggle.active {
  color: #ffffff;
}

.dropdown-chevron {
  transition: transform var(--transition-fast);
}

.nav-item-dropdown:hover .dropdown-chevron,
.nav-item-dropdown.active .dropdown-chevron {
  transform: rotate(180deg);
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  min-width: 270px;
  background: var(--primary-900);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.5), 0 8px 10px -6px rgba(0, 0, 0, 0.5);
  padding: 0.5rem;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: 1000;
}

.nav-item-dropdown:hover .dropdown-menu,
.nav-item-dropdown:focus-within .dropdown-menu,
.dropdown-menu.show {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(4px);
}

.dropdown-item {
  display: block;
  padding: 0.65rem 0.85rem;
  border-radius: var(--radius-sm);
  text-decoration: none !important;
  transition: background-color var(--transition-fast);
}

.dropdown-item:hover,
.dropdown-item:focus {
  background-color: rgba(255, 255, 255, 0.08);
}

.dropdown-item.active {
  background-color: rgba(245, 158, 11, 0.15);
  border-left: 3px solid var(--accent-amber);
}

.dropdown-item-title {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  color: #ffffff;
}

.dropdown-item.active .dropdown-item-title {
  color: var(--accent-amber);
}

.dropdown-item-desc {
  display: block;
  font-size: 0.78rem;
  color: #94a3b8;
  margin-top: 0.15rem;
}

.header-cta {
  display: none;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #ffffff;
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  padding: 0;
  flex-shrink: 0;
}

.mobile-menu-toggle:focus {
  outline: 2px solid var(--accent-amber);
}

.mobile-nav-drawer {
  display: none;
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  bottom: 0;
  max-height: calc(100vh - 72px);
  max-height: calc(100dvh - 72px);
  background-color: var(--primary-900);
  z-index: 999;
  padding: 1.5rem;
  overflow-y: auto;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  -webkit-overflow-scrolling: touch;
}

.mobile-nav-drawer.open {
  display: block;
}

.mobile-nav-list {
  list-style: none;
  padding: 0;
  margin: 0 0 2rem 0;
}

.mobile-nav-item {
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.mobile-nav-link {
  display: block;
  padding: 0.85rem 0;
  min-height: 44px;
  color: #f1f5f9;
  font-size: 1.05rem;
  font-weight: 500;
  text-decoration: none !important;
}

.mobile-nav-link.active {
  color: var(--accent-amber);
  font-weight: 700;
}

.mobile-nav-group-header {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-amber);
  font-weight: 700;
  padding: 1.25rem 0 0.4rem 0;
  border-bottom: none !important;
}

.mobile-sub-item {
  padding-left: 0.85rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.mobile-sub-item .mobile-nav-link {
  font-size: 0.95rem;
  padding: 0.75rem 0;
}

@media (min-width: 992px) {
  .desktop-nav { display: block; }
  .mobile-menu-toggle { display: none; }
}

/* --------------------------------------------------------------------------
   BREADCRUMBS
   -------------------------------------------------------------------------- */
.breadcrumb-container {
  background-color: var(--bg-alt);
  border-bottom: 1px solid var(--border-light);
  padding: 0.75rem 0;
}

.breadcrumb-container + main,
.breadcrumb-container + section,
.breadcrumb-container + #main-calculator {
  padding-top: 1.5rem !important;
}

.breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem 0.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 0.85rem;
}

.breadcrumb-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--primary-500);
}

.breadcrumb-item a {
  color: var(--primary-600);
}

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

.breadcrumb-item.active {
  color: var(--primary-900);
  font-weight: 600;
}

.breadcrumb-separator {
  color: var(--primary-400);
  font-size: 0.75rem;
}

/* --------------------------------------------------------------------------
   CALCULATOR UI & VISUALIZER
   -------------------------------------------------------------------------- */
.calculator-card {
  background-color: #ffffff;
  border-radius: var(--radius-xl);
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.08), 0 0 0 1px rgba(15, 23, 42, 0.08);
  padding: 1.75rem;
  position: relative;
}

@media (max-width: 640px) {
  .calculator-card {
    padding: 1.15rem 1rem;
    border-radius: var(--radius-lg);
  }
}

.calculator-header {
  border-bottom: 1px solid var(--border-light);
  padding-bottom: 1rem;
  margin-bottom: 1.25rem;
}

.calculator-title {
  font-size: 1.35rem;
  color: var(--primary-900);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.mode-selector {
  display: flex;
  background-color: var(--primary-100);
  padding: 0.25rem;
  border-radius: var(--radius-md);
  margin-bottom: 1.5rem;
  gap: 0.25rem;
}

@media (max-width: 640px) {
  .mode-selector {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.35rem;
    padding: 0.35rem;
  }
}

.mode-btn {
  flex: 1;
  padding: 0.5rem 0.75rem;
  font-size: 0.85rem;
  font-weight: 600;
  background: transparent;
  border: none;
  color: var(--primary-600);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: center;
}

@media (max-width: 640px) {
  .mode-btn {
    padding: 0.6rem 0.35rem;
    font-size: 0.8rem;
    line-height: 1.25;
    white-space: normal;
  }
}

.mode-btn:hover {
  color: var(--primary-900);
}

.mode-btn.active {
  background-color: #ffffff;
  color: var(--accent-indigo);
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.input-group {
  margin-bottom: 1.25rem;
}

.input-label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--primary-800);
  margin-bottom: 0.35rem;
}

.input-wrapper {
  display: flex;
  border: 1.5px solid var(--border-light);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.input-wrapper:focus-within {
  border-color: var(--accent-indigo);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.18);
}

.input-field {
  flex: 1;
  padding: 0.75rem 1rem;
  font-size: 1.05rem;
  border: none;
  outline: none;
  font-family: var(--font-mono);
  color: var(--primary-900);
  background-color: #ffffff;
  width: 100%;
}

.unit-select {
  background-color: var(--primary-50);
  border: none;
  border-left: 1px solid var(--border-light);
  padding: 0 0.85rem;
  font-weight: 600;
  color: var(--primary-700);
  cursor: pointer;
  outline: none;
  font-size: 0.9rem;
}

/* Modern Custom Select Dropdown UI */
.custom-select-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  width: 100%;
}

.custom-select {
  width: 100%;
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  background-color: #ffffff;
  border: 1.5px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 0.75rem 2.5rem 0.75rem 1rem;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--primary-900);
  cursor: pointer;
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast);
}

.custom-select:hover {
  border-color: var(--primary-400);
  background-color: var(--primary-50);
}

.custom-select:focus {
  border-color: var(--accent-indigo);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.18);
  background-color: #ffffff;
}

.custom-select-arrow {
  position: absolute;
  right: 1rem;
  pointer-events: none;
  color: var(--primary-500);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color var(--transition-fast);
}

.custom-select:focus + .custom-select-arrow,
.custom-select-wrapper:hover .custom-select-arrow {
  color: var(--accent-indigo);
}

@media (max-width: 768px) {
  .input-field,
  .unit-select,
  .custom-select,
  .form-control {
    font-size: 16px !important;
  }
}

.calculator-actions {
  display: flex;
  flex-direction: row;
  gap: 0.75rem;
  margin-top: 1.5rem;
  width: 100%;
}

.calculator-actions .btn {
  flex: 1;
  min-width: 0;
  margin: 0;
}

@media (max-width: 640px) {
  .calculator-actions {
    flex-direction: column;
    gap: 0.5rem;
  }
  .calculator-actions .btn {
    width: 100%;
    flex: none;
  }
}

/* Calculator Grid Layout for Side-by-Side Calculator Controls & Diagram */
.calculator-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  align-items: stretch;
}

@media (min-width: 768px) {
  .calculator-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
}

/* SVG Visualizer Container */
.triangle-visualizer {
  background-color: var(--primary-50);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  height: 100%;
}

.visualizer-title {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--primary-500);
  margin-bottom: 0.5rem;
}

#triangleSvg {
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 180px;
}

.triangle-svg {
  width: 100%;
  height: auto;
  max-height: 220px;
}

/* Result Card Box - Fresh Teal Result */
.result-card {
  display: none;
  background: linear-gradient(135deg, #f0fdfa 0%, #ccfbf1 100%);
  border: 1.5px solid #5eead4;
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  margin-top: 1.5rem;
  animation: fadeIn 0.3s ease;
}

.result-card.active {
  display: block;
}

.result-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.75rem;
}

.result-title {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #0f766e;
}

.result-value-badge {
  font-size: 1.6rem;
  font-weight: 800;
  font-family: var(--font-mono);
  color: #0f766e;
  margin-bottom: 1rem;
  word-break: break-word;
}

.steps-breakdown {
  background-color: #ffffff;
  border: 1px solid #99f6e4;
  border-radius: var(--radius-md);
  padding: 1rem;
  margin-bottom: 1rem;
}

.steps-breakdown-title {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--primary-700);
  margin-bottom: 0.5rem;
}

.step-line {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--primary-800);
  padding: 0.2rem 0;
}

.copy-btn-group {
  display: flex;
  gap: 0.5rem;
}

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

/* Error State */
.error-msg {
  display: none;
  background-color: #fef2f2;
  border: 1px solid #fca5a5;
  color: #991b1b;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  margin-top: 1rem;
}

.error-msg.active {
  display: block;
}

/* --------------------------------------------------------------------------
   RELATED CALCULATORS & FEATURE CARDS
   -------------------------------------------------------------------------- */
.related-card {
  display: flex;
  flex-direction: column;
  height: 100%;
  background-color: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  text-decoration: none !important;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
  transition: all var(--transition-normal);
}

.related-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 2px 8px rgba(79, 70, 229, 0.15);
  border-color: var(--accent-indigo);
}

.related-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background-color: #e0e7ff;
  color: var(--accent-indigo);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
}

.related-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--primary-900);
  margin-bottom: 0.5rem;
}

.related-desc {
  font-size: 0.9rem;
  color: var(--primary-600);
  flex: 1;
  margin-bottom: 1rem;
}

.related-link-text {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--accent-indigo);
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

/* --------------------------------------------------------------------------
   FAQ ACCORDION
   -------------------------------------------------------------------------- */
.faq-list, .faq-container {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-item {
  background-color: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.faq-item:hover {
  border-color: var(--primary-200);
}

.faq-item.active {
  border-color: var(--accent-indigo);
  box-shadow: 0 2px 8px rgba(79, 70, 229, 0.1);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.15rem 1.25rem;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--primary-900);
  background: transparent;
  border: none;
  cursor: pointer;
  text-align: left;
  transition: background-color var(--transition-fast);
}

.faq-question:hover {
  background-color: var(--primary-50);
}

.faq-icon {
  width: 20px;
  height: 20px;
  transition: transform var(--transition-normal);
  color: var(--primary-500);
  flex-shrink: 0;
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
  color: var(--accent-indigo);
}

.faq-answer {
  display: none;
  padding: 0 1.25rem 1.25rem 1.25rem;
  color: var(--primary-700);
  font-size: 0.98rem;
  line-height: 1.6;
}

.faq-item.active .faq-answer {
  display: block;
}

/* --------------------------------------------------------------------------
   FOOTER
   -------------------------------------------------------------------------- */
.site-footer {
  background-color: var(--primary-900);
  color: #94a3b8;
  padding: 4rem 0 2rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.9rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  margin-bottom: 3rem;
}

@media (min-width: 640px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1.5fr 1fr 1fr;
  }
}

.footer-col-title {
  color: #ffffff;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
  letter-spacing: 0.02em;
}

/* Footer Brand Column & Logo */
.footer-brand-col {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.25rem;
}

.footer-logo {
  width: 38px;
  height: 38px;
  border-radius: 8px;
  object-fit: cover;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
  background-color: #ffffff;
}

.footer-brand-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: #ffffff !important;
  letter-spacing: -0.01em;
  display: inline-flex;
  align-items: center;
}

.footer-brand-title .brand-accent {
  color: var(--accent-amber);
}

.footer-brand-desc {
  color: #ffffff !important;
  font-size: 0.925rem;
  line-height: 1.6;
  margin: 0;
  opacity: 0.95;
}

/* Footer Tag Pills */
.footer-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.footer-tag {
  display: inline-flex;
  align-items: center;
  font-size: 0.75rem;
  font-weight: 500;
  color: #ffffff !important;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  padding: 0.25rem 0.65rem;
  border-radius: 20px;
  transition: all 0.2s ease;
  user-select: none;
}

.footer-tag:hover {
  background: rgba(217, 119, 6, 0.25);
  border-color: var(--accent-amber);
  color: #ffffff !important;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(217, 119, 6, 0.2);
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: 0.6rem;
}

.footer-links a {
  color: #cbd5e1;
  text-decoration: none !important;
  transition: color var(--transition-fast);
}

.footer-links span {
  color: #ffffff;
  font-weight: 500;
  cursor: default;
}

.footer-links a:hover {
  color: var(--accent-amber);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
  text-align: center;
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

/* --------------------------------------------------------------------------
   FORM & LEGAL PAGES STYLING
   -------------------------------------------------------------------------- */
.contact-form {
  background-color: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--primary-800);
  margin-bottom: 0.35rem;
}

.form-control {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: 1rem;
  font-family: var(--font-sans);
  border: 1.5px solid var(--border-light);
  border-radius: var(--radius-md);
  outline: none;
  transition: border-color var(--transition-fast);
}

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

textarea.form-control {
  min-height: 140px;
  resize: vertical;
}

.legal-content {
  background-color: #ffffff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  padding: 2.5rem;
  margin-bottom: 3rem;
}

.legal-content h2 {
  border-bottom: 1px solid var(--border-light);
  padding-bottom: 0.5rem;
}

/* --------------------------------------------------------------------------
   FAMOUS TRIPLES GRID & TABLE FILTER BAR
   -------------------------------------------------------------------------- */
.famous-triples-grid {
  display: grid;
  grid-template-columns: repeat(1, 1fr);
  gap: 1rem;
  margin: 1.25rem 0 1.75rem 0;
}

@media (min-width: 576px) {
  .famous-triples-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 992px) {
  .famous-triples-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.famous-triple-card {
  background: linear-gradient(135deg, #ffffff 0%, var(--primary-50) 100%);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.04);
  transition: all var(--transition-normal);
}

.famous-triple-card:hover {
  transform: translateY(-2px);
  border-color: var(--accent-indigo);
  box-shadow: 0 4px 12px rgba(79, 70, 229, 0.12);
}

.famous-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.5rem;
}

.triple-badge {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--accent-indigo);
}

.triple-formula {
  font-size: 0.85rem;
  color: var(--primary-600);
  margin-bottom: 0.85rem;
  font-family: var(--font-mono);
  line-height: 1.4;
}

/* Table Filter Bar */
.table-filter-bar {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
  align-items: center;
}

.table-filter-btn {
  padding: 0.4rem 0.85rem;
  font-size: 0.85rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-light);
  background-color: #ffffff;
  color: var(--primary-700);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.table-filter-btn:hover {
  background-color: var(--primary-50);
  color: var(--primary-900);
}

.table-filter-btn.active {
  background-color: var(--accent-indigo);
  color: #ffffff;
  border-color: var(--accent-indigo);
}

.btn-xs {
  padding: 0.25rem 0.6rem;
  font-size: 0.78rem;
  border-radius: var(--radius-sm);
}

/* ==========================================================================
   Modern & Responsive Table UI Design System (.styled-table & .table-responsive)
   ========================================================================== */

.table-responsive,
.table-container {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin: 1.25rem 0;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(226, 232, 240, 0.9);
  background-color: var(--bg-card);
  box-shadow: 0 4px 20px -2px rgba(15, 23, 42, 0.05), 0 2px 6px -1px rgba(15, 23, 42, 0.03);
}

@media (max-width: 640px) {
  .table-responsive .styled-table,
  .table-responsive .table,
  .table-container .table,
  .table-container .styled-table {
    min-width: 480px;
  }
}

/* Custom Scrollbar for horizontal overflow on mobile */
.table-responsive::-webkit-scrollbar,
.table-container::-webkit-scrollbar {
  height: 6px;
}
.table-responsive::-webkit-scrollbar-track,
.table-container::-webkit-scrollbar-track {
  background: var(--primary-50);
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}
.table-responsive::-webkit-scrollbar-thumb,
.table-container::-webkit-scrollbar-thumb {
  background: var(--primary-200);
  border-radius: 3px;
}
.table-responsive::-webkit-scrollbar-thumb:hover,
.table-container::-webkit-scrollbar-thumb:hover {
  background: var(--accent-indigo);
}

.styled-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  text-align: left;
  font-size: 0.925rem;
  line-height: 1.5;
  color: var(--primary-800);
}

@media (max-width: 640px) {
  .styled-table thead th,
  .styled-table tbody td,
  .table th,
  .table td {
    padding: 0.65rem 0.75rem;
    font-size: 0.85rem;
  }
}

.styled-table thead th {
  background: linear-gradient(180deg, #f8fafc 0%, #f1f5f9 100%);
  color: var(--primary-800);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.95rem 1.15rem;
  border-bottom: 2px solid var(--border-light);
  white-space: nowrap;
  position: sticky;
  top: 0;
  z-index: 2;
}

.styled-table thead th:first-child {
  border-top-left-radius: calc(var(--radius-lg) - 1px);
}
.styled-table thead th:last-child {
  border-top-right-radius: calc(var(--radius-lg) - 1px);
}

.styled-table tbody tr {
  transition: background-color 0.2s ease, box-shadow 0.2s ease;
}

.styled-table tbody tr:nth-child(even) {
  background-color: rgba(248, 250, 252, 0.65);
}

.styled-table tbody tr:hover {
  background-color: rgba(79, 70, 229, 0.04) !important;
  box-shadow: inset 4px 0 0 var(--accent-indigo);
}

.styled-table tbody td {
  padding: 0.85rem 1.15rem;
  border-bottom: 1px solid #f1f5f9;
  vertical-align: middle;
}

.styled-table tbody tr:last-child td {
  border-bottom: none;
}

.styled-table tbody tr:last-child td:first-child {
  border-bottom-left-radius: calc(var(--radius-lg) - 1px);
}
.styled-table tbody tr:last-child td:last-child {
  border-bottom-right-radius: calc(var(--radius-lg) - 1px);
}

/* Numeric & Monospace Cells */
.styled-table td.num-cell,
.styled-table .num-val {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 600;
}

/* Badges & Status Pills */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.25rem 0.65rem;
  font-size: 0.78rem;
  font-weight: 600;
  border-radius: 9999px;
  line-height: 1.2;
}

.badge-success {
  background-color: #ecfdf5;
  color: #047857;
  border: 1px solid #a7f3d0;
}

.badge-warning {
  background-color: #fffbeb;
  color: #b45309;
  border: 1px solid #fde68a;
}

.badge-indigo {
  background-color: #eef2ff;
  color: #4338ca;
  border: 1px solid #c7d2fe;
}

/* Multiplier Tag (k=1, k=2...) */
.k-badge {
  display: inline-block;
  padding: 0.2rem 0.55rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--accent-indigo);
  background-color: #f5f3ff;
  border: 1px solid #ddd6fe;
  border-radius: var(--radius-sm);
}

/* Quick Load Button in Tables */
.quick-load-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  padding: 0.35rem 0.75rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent-indigo);
  background-color: #ffffff;
  border: 1px solid #c7d2fe;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
}

.quick-load-btn:hover {
  background-color: var(--accent-indigo);
  color: #ffffff;
  border-color: var(--accent-indigo);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(79, 70, 229, 0.25);
}

.quick-load-btn:active {
  transform: translateY(0);
}

/* ==========================================================================
   CARDS INSIDE SECTION CARDS MUST HAVE 0PX BOX-SHADOW
   ========================================================================== */
.card .card,
.card .content-card,
.card .example-card,
.card .formula-box,
.card .related-card,
.card .famous-triple-card,
.card .calculator-card,
.card .result-card,
.content-card .card,
.content-card .content-card,
.content-card .example-card,
.content-card .formula-box,
.content-card .related-card,
.content-card .famous-triple-card,
.content-card .calculator-card,
.content-card .result-card,
.section-card .card,
.section-card .content-card,
.section-card .example-card,
.section-card .formula-box,
.section-card .related-card,
.section-card .famous-triple-card,
section.card .card,
section.card .content-card,
section.card .example-card,
section.card .formula-box,
section.card .related-card,
section.card .famous-triple-card,
section.card [class*="card"],
section.content-card [class*="card"],
section [class*="card"] [class*="card"],
section .card,
.card [class*="card"],
.content-card [class*="card"],
[class*="card"] [class*="card"],
[class*="card"] .formula-box {
  box-shadow: 0px 0px 0px 0px transparent !important;
}

.card .card:hover,
.card .content-card:hover,
.card .example-card:hover,
.card .formula-box:hover,
.card .related-card:hover,
.card .famous-triple-card:hover,
.card .calculator-card:hover,
.card .result-card:hover,
.content-card .card:hover,
.content-card .content-card:hover,
.content-card .example-card:hover,
.content-card .formula-box:hover,
.content-card .related-card:hover,
.content-card .famous-triple-card:hover,
.content-card .calculator-card:hover,
.content-card .result-card:hover,
.section-card .card:hover,
.section-card .content-card:hover,
.section-card .example-card:hover,
.section-card .formula-box:hover,
.section-card .related-card:hover,
.section-card .famous-triple-card:hover,
section.card .card:hover,
section.card .content-card:hover,
section.card .example-card:hover,
section.card .formula-box:hover,
section.card .related-card:hover,
section.card .famous-triple-card:hover,
section.card [class*="card"]:hover,
section.content-card [class*="card"]:hover,
section [class*="card"] [class*="card"]:hover,
section .card:hover,
.card [class*="card"]:hover,
.content-card [class*="card"]:hover,
[class*="card"] [class*="card"]:hover,
[class*="card"] .formula-box:hover {
  box-shadow: 0px 0px 0px 0px transparent !important;
}