/* ==========================================================================
   Calculatorss.online - Modern Design System & Theme Styles
   ========================================================================== */

:root {
  /* Primary Teal & Emerald Palette */
  --primary: #0d9488;
  --primary-dark: #0f766e;
  --primary-darker: #115e59;
  --primary-light: #14b8a6;
  --primary-subtle: #f0fdfa;
  --primary-border: #99f6e4;
  --primary-glow: rgba(13, 148, 136, 0.18);

  /* Neutrals & Typography */
  --bg-main: #f8fafc;
  --bg-card: #ffffff;
  --text-heading: #0f172a;
  --text-body: #334155;
  --text-muted: #64748b;
  --border-light: #e2e8f0;
  --border-focus: #cbd5e1;

  /* Elevation & Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 16px -2px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
  --shadow-lg: 0 12px 24px -4px rgba(0, 0, 0, 0.08), 0 4px 8px -2px rgba(0, 0, 0, 0.03);
  --shadow-hover: 0 14px 28px -4px rgba(13, 148, 136, 0.12), 0 4px 10px -2px rgba(0, 0, 0, 0.04);

  /* Radii */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 16px;
  --radius-pill: 9999px;
}

/* Global Font & Reset Enhancements */
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Inter", system-ui, sans-serif;
  background-color: var(--bg-main);
  color: var(--text-body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Glassmorphic Sticky Header */
header {
  background: rgba(255, 255, 255, 0.94) !important;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.85) !important;
  box-shadow: 0 4px 20px -2px rgba(0, 0, 0, 0.03) !important;
}

.brand-logo-icon {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%) !important;
  box-shadow: 0 4px 12px rgba(13, 148, 136, 0.28) !important;
  border-radius: var(--radius-md) !important;
}

.btn-signin {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%) !important;
  color: #ffffff !important;
  border-radius: var(--radius-md) !important;
  box-shadow: 0 2px 8px rgba(13, 148, 136, 0.25) !important;
  transition: all 0.2s ease !important;
}
.btn-signin:hover {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-darker) 100%) !important;
  transform: translateY(-1px) !important;
  box-shadow: 0 4px 12px rgba(13, 148, 136, 0.35) !important;
}

/* Interactive Search Bar */
#searchBar,
.search-input {
  border: 2px solid var(--border-light) !important;
  border-radius: var(--radius-lg) !important;
  box-shadow: var(--shadow-sm) !important;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1) !important;
}

#searchBar:focus,
.search-input:focus {
  border-color: var(--primary) !important;
  box-shadow: 0 0 0 4px var(--primary-glow), 0 6px 20px rgba(0, 0, 0, 0.05) !important;
}

/* Directory Section Header */
.section-header-row {
  display: flex !important;
  justify-content: space-between !important;
  align-items: center !important;
  margin-bottom: 22px !important;
  border-bottom: 2px solid #f1f5f9 !important;
  padding-bottom: 12px !important;
  margin-top: 45px !important;
  position: relative !important;
}

.section-header-row::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 70px;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
  border-radius: 2px;
}

.section-header-row h2 {
  font-size: 21px !important;
  color: var(--text-heading) !important;
  font-weight: 800 !important;
  letter-spacing: -0.4px !important;
  margin: 0 !important;
}

.section-header-row span {
  font-size: 12.5px !important;
  color: var(--text-muted) !important;
  font-weight: 600 !important;
  background: #f1f5f9 !important;
  padding: 3px 12px !important;
  border-radius: var(--radius-pill) !important;
  border: 1px solid #e2e8f0;
}

/* Directory Grid Columns */
.categories-grid {
  display: grid !important;
  grid-template-columns: repeat(4, 1fr) !important;
  gap: 24px !important;
  margin-bottom: 55px !important;
}

@media (max-width: 960px) {
  .categories-grid { grid-template-columns: repeat(2, 1fr) !important; gap: 20px !important; }
}
@media (max-width: 540px) {
  .categories-grid { grid-template-columns: 1fr !important; }
}

.category-col {
  background: #ffffff !important;
  border: 1px solid var(--border-light) !important;
  border-radius: var(--radius-xl) !important;
  padding: 26px 20px !important;
  display: flex !important;
  flex-direction: column !important;
  align-items: center !important;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
  box-shadow: var(--shadow-sm) !important;
  position: relative !important;
  overflow: hidden !important;
}

.category-col::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
  opacity: 0;
  transition: opacity 0.3s ease;
}

.category-col:hover {
  transform: translateY(-4px) !important;
  box-shadow: var(--shadow-hover) !important;
  border-color: var(--border-focus) !important;
}

.category-col:hover::before {
  opacity: 1;
}

.circle-thumb {
  width: 60px !important;
  height: 60px !important;
  border-radius: 50% !important;
  background: linear-gradient(135deg, #f0fdfa 0%, #ccfbf1 100%) !important;
  margin-bottom: 14px !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  font-size: 26px !important;
  border: 1.5px solid var(--primary-border) !important;
  box-shadow: 0 4px 10px rgba(13, 148, 136, 0.08) !important;
  transition: transform 0.25s ease !important;
}

.category-col:hover .circle-thumb {
  transform: scale(1.08) rotate(3deg) !important;
}

.category-col h2 {
  font-size: 16.5px !important;
  color: var(--primary-dark) !important;
  margin: 0 0 16px 0 !important;
  font-weight: 700 !important;
  text-align: center !important;
  letter-spacing: -0.2px !important;
}

.links-group {
  list-style: none !important;
  padding: 0 !important;
  margin: 0 !important;
  width: 100% !important;
}

.links-group li {
  margin-bottom: 5px !important;
}

.links-group a {
  color: var(--text-body) !important;
  text-decoration: none !important;
  font-size: 13.5px !important;
  font-weight: 500 !important;
  padding: 6px 10px !important;
  border-radius: var(--radius-sm) !important;
  display: flex !important;
  justify-content: space-between !important;
  align-items: center !important;
  transition: all 0.18s ease !important;
}

.links-group a:hover {
  background-color: var(--primary-subtle) !important;
  color: var(--primary) !important;
  transform: translateX(3px) !important;
}

.links-group a.active-link,
.links-group a[style*="font-weight: 700"] {
  background: linear-gradient(135deg, #e6fffa 0%, #f0fdfa 100%) !important;
  color: var(--primary-dark) !important;
  font-weight: 700 !important;
  border-left: 3px solid var(--primary) !important;
  padding-left: 10px !important;
}

/* Calculator Workspace Cards & Buttons */
.calc-form,
.calc-card,
.calculator-card {
  border-radius: var(--radius-xl) !important;
  box-shadow: var(--shadow-md) !important;
  border: 1px solid var(--border-light) !important;
}

.btn-calc,
.btn-primary,
button.btn-calc {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%) !important;
  color: #ffffff !important;
  border-radius: var(--radius-md) !important;
  font-weight: 700 !important;
  box-shadow: 0 4px 14px rgba(13, 148, 136, 0.28) !important;
  transition: all 0.2s ease !important;
}

.btn-calc:hover,
.btn-primary:hover,
button.btn-calc:hover {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-darker) 100%) !important;
  transform: translateY(-2px) !important;
  box-shadow: 0 6px 18px rgba(13, 148, 136, 0.38) !important;
}

.btn-calc:active,
.btn-primary:active {
  transform: translateY(0) !important;
}

/* Results Panel Styling */
.calc-results,
.results-panel {
  background: linear-gradient(180deg, #f0fdfa 0%, #e6fffa 100%) !important;
  border: 1px solid var(--primary-border) !important;
  border-radius: var(--radius-xl) !important;
  box-shadow: var(--shadow-sm) !important;
}

.monthly-pay-value,
.result-highlight-val {
  color: var(--primary-dark) !important;
  font-weight: 800 !important;
  letter-spacing: -0.5px !important;
}

/* Editorial & Content Cards */
.content-card,
.content-section,
.seo-content {
  border-radius: var(--radius-xl) !important;
  border: 1px solid var(--border-light) !important;
  box-shadow: var(--shadow-sm) !important;
}

.content-card h2,
.content-section h2 {
  color: var(--primary-dark) !important;
  font-weight: 800 !important;
  letter-spacing: -0.3px !important;
}

.faq-item {
  transition: background-color 0.15s ease;
  border-radius: var(--radius-sm);
  padding: 14px 10px;
}
.faq-item:hover {
  background-color: #f8fafc;
}
.faq-item h4 {
  color: var(--primary-dark) !important;
  font-weight: 700 !important;
}