/* ============================================
   Marketing Calculator Hub - Custom Styles
   ============================================ */

/* CSS Variables */
:root {
  --primary: #1a56db;
  --primary-dark: #1e429f;
  --primary-light: #e8f0fe;
  --secondary: #0e9f6e;
  --accent: #ff6b35;
  --dark: #111827;
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.10);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.12);
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 20px;
  --font-heading: 'Plus Jakarta Sans', 'Segoe UI', sans-serif;
  --font-body: 'Inter', 'Segoe UI', sans-serif;
  --transition: all 0.22s cubic-bezier(.4,0,.2,1);
}

/* Reset & Base */
*, *::before, *::after { box-sizing: border-box; }

body {
  font-family: var(--font-body);
  color: var(--dark);
  background: #fff;
  line-height: 1.7;
  font-size: 16px;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.25;
  color: var(--gray-800);
}

a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary-dark); }

img { max-width: 100%; height: auto; }

/* ============================================
   NAVBAR
   ============================================ */
.navbar-hub {
  background: #fff;
  border-bottom: 1px solid var(--gray-200);
  padding: 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow-sm);
}

.navbar-hub .container-fluid {
  padding: 0 24px;
}

.navbar-hub .navbar-brand {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.45rem;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 0;
}

.navbar-hub .navbar-brand .brand-icon {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.1rem;
}

.navbar-hub .nav-link {
  font-weight: 500;
  font-size: 0.92rem;
  color: var(--gray-700);
  padding: 22px 14px !important;
  border-bottom: 3px solid transparent;
  transition: var(--transition);
  letter-spacing: 0.01em;
}

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

.navbar-hub .dropdown-menu {
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lg);
  padding: 8px;
  min-width: 220px;
  animation: dropIn 0.18s ease;
}

@keyframes dropIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.navbar-hub .dropdown-item {
  border-radius: 6px;
  padding: 8px 14px;
  font-size: 0.88rem;
  color: var(--gray-700);
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 8px;
}

.navbar-hub .dropdown-item:hover {
  background: var(--primary-light);
  color: var(--primary);
}

.navbar-hub .dropdown-item .di-icon {
  width: 22px;
  height: 22px;
  border-radius: 5px;
  background: var(--gray-100);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  flex-shrink: 0;
}

.navbar-cta {
  background: var(--primary);
  color: #fff !important;
  border-radius: 8px;
  padding: 8px 18px !important;
  margin: 12px 0 12px 8px;
  border-bottom: none !important;
  font-size: 0.88rem;
}

.navbar-cta:hover {
  background: var(--primary-dark) !important;
  color: #fff !important;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(26,86,219,0.3);
}

/* ============================================
   AD UNITS
   ============================================ */
.ad-container {
  text-align: center;
  overflow: hidden;
}

.ad-label {
  font-size: 0.68rem;
  color: var(--gray-300);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  display: block;
  margin-bottom: 4px;
}

.ad-top-banner {
  background: var(--gray-50);
  border-bottom: 1px solid var(--gray-200);
  padding: 10px;
  min-height: 100px;
}

.ad-below-tool {
  background: var(--gray-50);
  border-radius: var(--radius);
  padding: 16px;
  margin: 24px 0;
  min-height: 280px;
  border: 1px solid var(--gray-200);
}

.ad-in-content {
  background: var(--gray-50);
  border-radius: var(--radius-sm);
  padding: 12px;
  margin: 28px 0;
  min-height: 100px;
  border: 1px solid var(--gray-200);
}

.ad-sidebar {
  background: var(--gray-50);
  border-radius: var(--radius);
  padding: 12px;
  min-height: 600px;
  border: 1px solid var(--gray-200);
  position: sticky;
  top: 80px;
}

.ad-sticky-mobile {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 999;
  background: #fff;
  border-top: 1px solid var(--gray-200);
  padding: 8px;
  text-align: center;
  min-height: 60px;
}

@media (max-width: 768px) {
  .ad-sticky-mobile { display: block; }
  body { padding-bottom: 70px; }
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero-section {
  background: linear-gradient(135deg, #0f1f5c 0%, #1a56db 50%, #0e9f6e 100%);
  color: #fff;
  padding: 80px 0 60px;
  position: relative;
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.hero-section .container { position: relative; z-index: 1; }

.hero-section h1 {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 800;
  color: #fff;
  line-height: 1.15;
  margin-bottom: 18px;
}

.hero-section .hero-subtitle {
  font-size: 1.15rem;
  color: rgba(255,255,255,0.85);
  max-width: 600px;
  margin-bottom: 32px;
}

.hero-search {
  display: flex;
  gap: 10px;
  max-width: 520px;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 50px;
  padding: 6px 6px 6px 20px;
  backdrop-filter: blur(8px);
}

.hero-search input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: #fff;
  font-size: 0.95rem;
}

.hero-search input::placeholder { color: rgba(255,255,255,0.6); }

.hero-search button {
  background: #fff;
  color: var(--primary);
  border: none;
  border-radius: 40px;
  padding: 9px 22px;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

.hero-search button:hover { background: var(--primary-light); }

.hero-stats {
  display: flex;
  gap: 32px;
  margin-top: 40px;
  flex-wrap: wrap;
}

.hero-stat .stat-number {
  font-size: 2rem;
  font-weight: 800;
  color: #fff;
  line-height: 1;
}

.hero-stat .stat-label {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.7);
  margin-top: 4px;
}

/* ============================================
   CATEGORY SECTION
   ============================================ */
.section-title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 800;
  color: var(--gray-800);
  margin-bottom: 8px;
}

.section-subtitle {
  color: var(--gray-600);
  font-size: 1rem;
  margin-bottom: 40px;
}

.category-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border-radius: 50px;
  padding: 4px 12px;
  margin-bottom: 14px;
}

/* ============================================
   CALCULATOR CARDS
   ============================================ */
.calc-card {
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 22px;
  transition: var(--transition);
  height: 100%;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.calc-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  transform: scaleX(0);
  transform-origin: left;
  transition: var(--transition);
}

.calc-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.calc-card:hover::before { transform: scaleX(1); }

.calc-card-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  margin-bottom: 14px;
  flex-shrink: 0;
}

.calc-card-icon.seo { background: #e8f0fe; color: #1a56db; }
.calc-card-icon.ads { background: #fef3c7; color: #d97706; }
.calc-card-icon.social { background: #fce7f3; color: #db2777; }
.calc-card-icon.business { background: #d1fae5; color: #059669; }
.calc-card-icon.youtube { background: #fee2e2; color: #dc2626; }
.calc-card-icon.linkedin { background: #dbeafe; color: #1d4ed8; }
.calc-card-icon.tiktok { background: #f3e8ff; color: #7c3aed; }
.calc-card-icon.snapchat { background: #fef9c3; color: #ca8a04; }

.calc-card h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--gray-800);
  margin-bottom: 6px;
}

.calc-card p {
  font-size: 0.875rem;
  color: var(--gray-600);
  margin-bottom: 16px;
  flex: 1;
  line-height: 1.6;
}

.calc-card .card-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--primary);
  transition: var(--transition);
}

.calc-card .card-link:hover { gap: 8px; }

/* Category Header Card */
.category-header-card {
  background: linear-gradient(135deg, #1a56db, #1e429f);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 30px;
  margin-bottom: 28px;
}

.category-header-card h2 {
  color: #fff;
  font-size: 1.5rem;
  margin-bottom: 6px;
}

.category-header-card p {
  color: rgba(255,255,255,0.8);
  font-size: 0.9rem;
  margin: 0;
}

.category-header-card .cat-icon {
  font-size: 2.5rem;
  opacity: 0.9;
}

/* ============================================
   CALCULATOR TOOL PAGE
   ============================================ */
.calc-page-header {
  background: linear-gradient(135deg, #0f1f5c, #1a56db);
  color: #fff;
  padding: 48px 0 36px;
}

.calc-page-header h1 {
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  color: #fff;
  font-weight: 800;
  margin-bottom: 10px;
}

.calc-page-header p {
  color: rgba(255,255,255,0.82);
  font-size: 1rem;
  margin-bottom: 16px;
}

.breadcrumb-hub {
  background: transparent;
  padding: 0;
  margin: 0;
  font-size: 0.85rem;
}

.breadcrumb-hub .breadcrumb-item { color: rgba(255,255,255,0.7); }
.breadcrumb-hub .breadcrumb-item a { color: rgba(255,255,255,0.85); }
.breadcrumb-hub .breadcrumb-item.active { color: #fff; }
.breadcrumb-hub .breadcrumb-item + .breadcrumb-item::before { color: rgba(255,255,255,0.5); }

/* Calculator Form Box */
.calc-box {
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 36px;
  margin-top: -24px;
  position: relative;
  z-index: 10;
  border: 1px solid var(--gray-200);
}

.calc-box h2 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--gray-800);
  margin-bottom: 24px;
  padding-bottom: 14px;
  border-bottom: 2px solid var(--gray-100);
  display: flex;
  align-items: center;
  gap: 10px;
}

.calc-box h2 .calc-icon {
  width: 36px;
  height: 36px;
  background: var(--primary-light);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 1rem;
}

.form-label-hub {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--gray-700);
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 5px;
}

.form-label-hub .hint {
  font-weight: 400;
  color: var(--gray-600);
  font-size: 0.78rem;
}

.form-control-hub {
  border: 1.5px solid var(--gray-200);
  border-radius: var(--radius-sm);
  padding: 11px 14px;
  font-size: 0.95rem;
  color: var(--gray-800);
  width: 100%;
  transition: var(--transition);
  background: #fff;
}

.form-control-hub:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(26,86,219,0.12);
}

.input-group-hub {
  position: relative;
}

.input-group-hub .prefix,
.input-group-hub .suffix {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--gray-600);
  pointer-events: none;
}

.input-group-hub .prefix { left: 13px; }
.input-group-hub .suffix { right: 13px; }
.input-group-hub input.with-prefix { padding-left: 28px; }
.input-group-hub input.with-suffix { padding-right: 30px; }

.range-input-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
}

.range-input-wrap input[type="range"] {
  flex: 1;
  accent-color: var(--primary);
  height: 6px;
}

.range-value-badge {
  background: var(--primary);
  color: #fff;
  font-size: 0.8rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 20px;
  min-width: 52px;
  text-align: center;
}

.btn-calculate {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  padding: 14px 32px;
  font-size: 1rem;
  font-weight: 700;
  font-family: var(--font-heading);
  width: 100%;
  cursor: pointer;
  transition: var(--transition);
  letter-spacing: 0.02em;
  margin-top: 8px;
}

.btn-calculate:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(26,86,219,0.35);
}

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

.btn-reset {
  background: var(--gray-100);
  color: var(--gray-600);
  border: none;
  border-radius: var(--radius-sm);
  padding: 11px 24px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  width: 100%;
}

.btn-reset:hover { background: var(--gray-200); }

/* Results Box */
.results-box {
  display: none;
  background: linear-gradient(135deg, #f0f7ff, #e8f0fe);
  border: 2px solid var(--primary);
  border-radius: var(--radius);
  padding: 28px;
  margin-top: 24px;
  animation: slideUp 0.35s ease;
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

.results-box.show { display: block; }

.results-box h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--gray-800);
  margin-bottom: 18px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(26,86,219,0.15);
}

.result-metric {
  text-align: center;
  padding: 16px;
  background: #fff;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(26,86,219,0.12);
}

.result-metric .metric-value {
  font-size: 2rem;
  font-weight: 800;
  color: var(--primary);
  font-family: var(--font-heading);
  line-height: 1;
}

.result-metric .metric-label {
  font-size: 0.78rem;
  color: var(--gray-600);
  margin-top: 4px;
  font-weight: 500;
}

.result-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  border-radius: 50px;
  padding: 5px 14px;
  font-size: 0.82rem;
  font-weight: 700;
  margin-top: 10px;
}

.result-badge.excellent { background: #d1fae5; color: #059669; }
.result-badge.good { background: #dbeafe; color: #1d4ed8; }
.result-badge.average { background: #fef3c7; color: #d97706; }
.result-badge.poor { background: #fee2e2; color: #dc2626; }

.result-insight {
  background: rgba(26,86,219,0.06);
  border-left: 3px solid var(--primary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 12px 16px;
  margin-top: 14px;
  font-size: 0.875rem;
  color: var(--gray-700);
}

/* ============================================
   SEO CONTENT AREA
   ============================================ */
.content-section {
  padding: 48px 0;
}

.content-section h2 {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--gray-800);
  margin: 36px 0 14px;
  padding-top: 14px;
}

.content-section h2:first-child { margin-top: 0; }

.content-section h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--gray-700);
  margin: 24px 0 10px;
}

.content-section p {
  color: var(--gray-700);
  margin-bottom: 16px;
  line-height: 1.8;
}

.content-section ul, .content-section ol {
  color: var(--gray-700);
  padding-left: 22px;
  margin-bottom: 16px;
}

.content-section li {
  margin-bottom: 8px;
  line-height: 1.7;
}

.formula-box {
  background: var(--gray-800);
  color: #e2e8f0;
  border-radius: var(--radius-sm);
  padding: 20px 24px;
  font-family: 'Courier New', monospace;
  font-size: 1.05rem;
  margin: 20px 0;
  overflow-x: auto;
  border-left: 4px solid var(--primary);
}

.formula-box .formula-label {
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #94a3b8;
  margin-bottom: 8px;
  font-family: var(--font-body);
}

.formula-highlight { color: #60a5fa; font-weight: 700; }

.benchmark-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--gray-200);
  margin: 20px 0;
}

.benchmark-table th {
  background: var(--gray-800);
  color: #fff;
  padding: 13px 18px;
  font-size: 0.85rem;
  font-weight: 600;
  text-align: left;
}

.benchmark-table td {
  padding: 12px 18px;
  font-size: 0.88rem;
  border-bottom: 1px solid var(--gray-200);
  color: var(--gray-700);
}

.benchmark-table tr:last-child td { border-bottom: none; }
.benchmark-table tr:nth-child(even) td { background: var(--gray-50); }

.tip-card {
  background: linear-gradient(135deg, #f0f9ff, #e0f2fe);
  border: 1px solid #bae6fd;
  border-radius: var(--radius-sm);
  padding: 18px 22px;
  margin: 16px 0;
}

.tip-card .tip-title {
  font-weight: 700;
  color: #0369a1;
  font-size: 0.9rem;
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.tip-card p {
  color: #0c4a6e;
  font-size: 0.875rem;
  margin: 0;
  line-height: 1.65;
}

.example-box {
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-sm);
  padding: 20px;
  margin: 20px 0;
}

.example-box .example-title {
  font-weight: 700;
  color: var(--gray-800);
  font-size: 0.95rem;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--gray-100);
  display: flex;
  align-items: center;
  gap: 6px;
}

/* ============================================
   FAQ SECTION
   ============================================ */
.faq-section {
  background: var(--gray-50);
  padding: 48px 0;
}

.faq-section h2 {
  font-size: 1.7rem;
  font-weight: 800;
  color: var(--gray-800);
  margin-bottom: 28px;
}

.faq-accordion .accordion-item {
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-sm) !important;
  margin-bottom: 10px;
  overflow: hidden;
}

.faq-accordion .accordion-button {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--gray-800);
  background: #fff;
  padding: 18px 22px;
}

.faq-accordion .accordion-button:not(.collapsed) {
  background: var(--primary-light);
  color: var(--primary);
  box-shadow: none;
}

.faq-accordion .accordion-button::after {
  filter: none;
}

.faq-accordion .accordion-body {
  font-size: 0.9rem;
  color: var(--gray-700);
  line-height: 1.75;
  padding: 16px 22px 20px;
}

/* ============================================
   CTA / LEAD CAPTURE
   ============================================ */
.cta-section {
  background: linear-gradient(135deg, #0f1f5c, #1a56db, #0e9f6e);
  color: #fff;
  padding: 64px 0;
  text-align: center;
}

.cta-section h2 {
  color: #fff;
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 800;
  margin-bottom: 12px;
}

.cta-section p {
  color: rgba(255,255,255,0.85);
  font-size: 1rem;
  margin-bottom: 32px;
}

.cta-form {
  display: flex;
  gap: 10px;
  max-width: 460px;
  margin: 0 auto 14px;
  flex-wrap: wrap;
}

.cta-form input {
  flex: 1;
  min-width: 200px;
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: 50px;
  padding: 13px 20px;
  color: #fff;
  font-size: 0.95rem;
}

.cta-form input::placeholder { color: rgba(255,255,255,0.6); }

.btn-cta-white {
  background: #fff;
  color: var(--primary);
  border: none;
  border-radius: 50px;
  padding: 13px 28px;
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-cta-white:hover {
  background: var(--primary-light);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0,0,0,0.2);
}

.cta-trust {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.6);
  margin-top: 10px;
}

/* ============================================
   RELATED TOOLS
   ============================================ */
.related-tools {
  padding: 40px 0;
  background: #fff;
  border-top: 1px solid var(--gray-200);
}

.related-tools h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--gray-800);
  margin-bottom: 20px;
}

.related-tool-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: 50px;
  padding: 7px 16px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--gray-700);
  transition: var(--transition);
  text-decoration: none;
  margin: 4px;
}

.related-tool-chip:hover {
  background: var(--primary-light);
  border-color: var(--primary);
  color: var(--primary);
}

/* ============================================
   FOOTER
   ============================================ */
.footer-hub {
  background: var(--gray-800);
  color: rgba(255,255,255,0.75);
  padding: 56px 0 0;
}

.footer-hub .footer-brand {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 12px;
}

.footer-hub .footer-tagline {
  font-size: 0.875rem;
  line-height: 1.65;
  margin-bottom: 24px;
  max-width: 260px;
}

.footer-hub h5 {
  color: #fff;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

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

.footer-hub .footer-links li {
  margin-bottom: 9px;
}

.footer-hub .footer-links a {
  color: rgba(255,255,255,0.65);
  font-size: 0.875rem;
  transition: var(--transition);
}

.footer-hub .footer-links a:hover {
  color: #fff;
  padding-left: 4px;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 20px 0;
  margin-top: 40px;
  text-align: center;
  font-size: 0.82rem;
  color: rgba(255,255,255,0.45);
}

/* ============================================
   UTILITIES & HELPERS
   ============================================ */
.section-divider {
  border: none;
  height: 1px;
  background: var(--gray-200);
  margin: 40px 0;
}

.highlight-text { color: var(--primary); }
.text-success-hub { color: var(--secondary); }
.text-accent { color: var(--accent); }

.bg-gradient-hub {
  background: linear-gradient(135deg, var(--primary-light), #fff);
}

.badge-hub {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 50px;
}

.badge-hub.green { background: #d1fae5; color: #059669; }
.badge-hub.orange { background: #fef3c7; color: #d97706; }

/* Responsive Utilities */
@media (max-width: 991px) {
  .ad-sidebar { display: none; }
  .calc-box { padding: 24px; }
  .hero-section { padding: 56px 0 44px; }
}

@media (max-width: 575px) {
  .calc-box { padding: 18px; border-radius: 16px; }
  .results-box { padding: 20px; }
  .hero-stats { gap: 20px; }
  .hero-stat .stat-number { font-size: 1.5rem; }
  .result-metric .metric-value { font-size: 1.6rem; }
}

/* Print Styles */
@media print {
  .navbar-hub, .ad-container, .cta-section, .footer-hub { display: none; }
  .calc-box { box-shadow: none; border: 1px solid #ccc; }
}

/* ============================================
   DARK MODE
   ============================================ */
[data-theme="dark"] {
  --bs-body-bg: #0f172a;
  --bs-body-color: #e2e8f0;
  --bs-card-bg: #1e293b;
  --bs-border-color: #334155;
}
[data-theme="dark"] body        { background: #0f172a !important; color: #e2e8f0 !important; }
[data-theme="dark"] .navbar     { background: #1e293b !important; border-bottom: 1px solid #334155; }
[data-theme="dark"] .card       { background: #1e293b !important; border-color: #334155 !important; color: #e2e8f0; }
[data-theme="dark"] .bg-light   { background: #1e293b !important; }
[data-theme="dark"] .bg-white   { background: #1e293b !important; }
[data-theme="dark"] .text-muted { color: #94a3b8 !important; }
[data-theme="dark"] .text-dark  { color: #e2e8f0 !important; }
[data-theme="dark"] .form-control { background: #0f172a; border-color: #334155; color: #e2e8f0; }
[data-theme="dark"] .form-control:focus { background: #0f172a; color: #e2e8f0; }
[data-theme="dark"] .form-select { background: #0f172a; border-color: #334155; color: #e2e8f0; }
[data-theme="dark"] .table      { color: #e2e8f0; --bs-table-bg: transparent; }
[data-theme="dark"] .table-striped>tbody>tr:nth-of-type(odd)>* { background: rgba(255,255,255,0.03); }
[data-theme="dark"] .accordion-item  { background: #1e293b; border-color: #334155; }
[data-theme="dark"] .accordion-button { background: #1e293b; color: #e2e8f0; }
[data-theme="dark"] .accordion-button:not(.collapsed) { background: #0f172a; }
[data-theme="dark"] .accordion-body  { background: #1e293b; color: #cbd5e1; }
[data-theme="dark"] .breadcrumb-item a { color: #818cf8; }
[data-theme="dark"] .results-box { background: linear-gradient(135deg,#1e1b4b,#312e81); }
[data-theme="dark"] .calculator-card { background: #1e293b !important; }
[data-theme="dark"] footer       { background: #0f172a !important; }
[data-theme="dark"] .hero-section { background: linear-gradient(135deg,#0f172a 0%,#1e1b4b 100%) !important; }
[data-theme="dark"] .seo-content h2,
[data-theme="dark"] .seo-content h3 { color: #e2e8f0; }
[data-theme="dark"] .ad-placeholder { background: #1e293b !important; border-color: #334155 !important; color: #475569 !important; }

/* Dark mode toggle button */
.dark-toggle {
  background: none;
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 20px;
  padding: 4px 12px;
  cursor: pointer;
  font-size: 14px;
  color: inherit;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  gap: 6px;
}
.dark-toggle:hover { border-color: rgba(255,255,255,0.5); }

/* ============================================
   FAVORITES / BOOKMARKS
   ============================================ */
.fav-btn {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 18px;
  color: #94a3b8;
  transition: all 0.2s;
  padding: 4px 8px;
}
.fav-btn.active { color: #f59e0b; }
.fav-btn:hover  { transform: scale(1.2); }

/* Favorites bar */
.favorites-bar {
  background: #fffbeb;
  border: 1px solid #fde68a;
  border-radius: 10px;
  padding: 12px 16px;
  margin-bottom: 20px;
  font-size: 13px;
}
[data-theme="dark"] .favorites-bar { background: #1c1917; border-color: #44403c; }

/* ============================================
   NEWSLETTER POPUP
   ============================================ */
.newsletter-popup {
  position: fixed;
  bottom: 80px;
  right: 20px;
  width: 320px;
  background: #fff;
  border-radius: 16px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.15);
  padding: 24px;
  z-index: 9999;
  transform: translateY(120%);
  transition: transform 0.4s cubic-bezier(0.34,1.56,0.64,1);
}
.newsletter-popup.show { transform: translateY(0); }
[data-theme="dark"] .newsletter-popup { background: #1e293b; color: #e2e8f0; }
.newsletter-popup-close {
  position: absolute;
  top: 10px;
  right: 14px;
  background: none;
  border: none;
  font-size: 20px;
  cursor: pointer;
  color: #94a3b8;
  line-height: 1;
}

/* ============================================
   MOBILE RESPONSIVE FIXES
   ============================================ */

/* ---- General Mobile ---- */
@media (max-width: 768px) {
  body { font-size: 15px; }

  h1, .display-5 { font-size: 1.8rem !important; line-height: 1.3; }
  h2 { font-size: 1.4rem !important; }
  h3 { font-size: 1.2rem !important; }
  .lead { font-size: 1rem !important; }

  .container { padding-left: 16px !important; padding-right: 16px !important; }
  .py-5 { padding-top: 2rem !important; padding-bottom: 2rem !important; }
  .py-4 { padding-top: 1.5rem !important; padding-bottom: 1.5rem !important; }
  .mb-5 { margin-bottom: 2rem !important; }
  .mb-4 { margin-bottom: 1.5rem !important; }
}

/* ---- Navbar Mobile ---- */
@media (max-width: 991px) {
  .navbar { height: auto !important; padding: 8px 0 !important; }
  .navbar-brand img { height: 34px !important; }
  .navbar-collapse {
    background: #fff;
    border-top: 1px solid #e2e8f0;
    padding: 12px 16px;
    margin-top: 8px;
    border-radius: 0 0 12px 12px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.1);
  }
  [data-theme="dark"] .navbar-collapse { background: #1e293b; border-color: #334155; }
  .navbar .nav-link { padding: 10px 8px !important; border-bottom: 1px solid #f1f5f9; }
  [data-theme="dark"] .navbar .nav-link { border-color: #334155; }
  .navbar .dropdown-menu {
    box-shadow: none !important;
    border: none !important;
    background: #f8fafc !important;
    border-radius: 8px !important;
    margin: 4px 0 8px 0 !important;
    padding: 8px !important;
    min-width: 100% !important;
  }
  [data-theme="dark"] .navbar .dropdown-menu { background: #0f172a !important; }
  .navbar .dropdown-menu .row { display: block !important; }
  .navbar .dropdown-menu .col-6 { width: 100% !important; }
  .navbar .d-flex.align-items-center.gap-2 {
    flex-wrap: wrap;
    gap: 8px !important;
    padding: 12px 0 4px;
    border-top: 1px solid #e2e8f0;
    margin-top: 8px;
  }
  .navbar .d-flex .btn { flex: 1; justify-content: center; font-size: 13px; }
}

/* ---- Calculator Cards Mobile ---- */
@media (max-width: 768px) {
  .calculator-card .card-body { padding: 20px 16px !important; }
  .calculator-card .row.g-3 > .col-md-6 { width: 100% !important; }
  .form-control-lg, .form-select-lg {
    font-size: 16px !important; /* Prevents iOS zoom on focus */
    padding: 10px 14px !important;
  }
  .btn-lg { font-size: 15px !important; padding: 12px 20px !important; width: 100%; }

  .results-box { padding: 20px 16px !important; }
  .results-box .row.g-3 > .col-md-6 { width: 50% !important; }
  .metric-card { padding: 12px !important; }
  .metric-value { font-size: 1.3rem !important; }
}

/* ---- Hero Section Mobile ---- */
@media (max-width: 768px) {
  .hero-section { padding: 40px 0 !important; }
  .hero-section .display-4 { font-size: 2rem !important; }
  .hero-section .search-bar { flex-direction: column !important; gap: 8px; }
  .hero-section .search-bar input { border-radius: 10px !important; }
  .hero-section .search-bar button { border-radius: 10px !important; width: 100%; }
  .hero-stats { flex-wrap: wrap; gap: 12px !important; }
  .hero-stats .stat-item { flex: 1; min-width: 120px; text-align: center; }
  .floating-cards { display: none !important; } /* Hide decorative floating cards on mobile */
}

/* ---- SEO Content Mobile ---- */
@media (max-width: 768px) {
  .seo-content { font-size: 15px; }
  .seo-content h2 { font-size: 1.3rem !important; margin-top: 1.5rem; }
  .seo-content h3 { font-size: 1.1rem !important; }
  .table-responsive { font-size: 13px; }

  /* Sidebar hidden on mobile - show content full width */
  .col-lg-4 .sticky-top { position: static !important; }
  .ad-sidebar { display: none !important; } /* Hide sidebar ads on mobile */
}

/* ---- Ad Units Mobile ---- */
@media (max-width: 768px) {
  .ad-top-banner { display: none !important; }
  .ad-in-content .ad-placeholder { width: 100% !important; height: 100px !important; }
  .ad-below-tool .ad-placeholder { width: 100% !important; height: 200px !important; }
  .ad-sticky-mobile { display: block !important; position: fixed; bottom: 0; left: 0; right: 0; z-index: 999; background: #fff; text-align: center; padding: 4px; box-shadow: 0 -2px 10px rgba(0,0,0,0.1); }
}

/* ---- Footer Mobile ---- */
@media (max-width: 768px) {
  footer { padding: 40px 0 0 !important; }
  footer .row.g-5 { gap: 0 !important; }
  footer .col-lg-4 { margin-bottom: 28px; }
  footer .col-6.col-lg-2 { margin-bottom: 20px; }
  footer img { height: 36px !important; }
  footer .d-flex.align-items-center.justify-content-between { flex-direction: column; gap: 12px; text-align: center; }
}

/* ---- Blog Mobile ---- */
@media (max-width: 768px) {
  .blog-content { font-size: 15px; line-height: 1.75; }
  .blog-content h2 { font-size: 1.3rem !important; }
  .blog-content table { font-size: 12px; }
}

/* ---- Pricing Mobile ---- */
@media (max-width: 768px) {
  .pricing-toggle { flex-direction: column; align-items: flex-start !important; gap: 8px; }
}

/* ---- Admin Panel Mobile ---- */
@media (max-width: 768px) {
  .main { margin-left: 0 !important; }
  .sidebar { display: none; }
  .topbar { padding: 0 16px !important; }
  .content { padding: 16px !important; }
  .stats-grid { grid-template-columns: 1fr 1fr !important; }
  .table-wrap { overflow-x: auto; }
  table { font-size: 13px; }
}

/* ---- Fix iOS input zoom ---- */
@media (max-width: 768px) {
  input[type="text"],
  input[type="email"],
  input[type="number"],
  input[type="url"],
  input[type="tel"],
  select,
  textarea {
    font-size: 16px !important;
  }
}

/* ---- Fix overflow on small screens ---- */
@media (max-width: 576px) {
  .row { margin-left: 0 !important; margin-right: 0 !important; }
  .col-md-6, .col-lg-8, .col-lg-4 { padding-left: 0 !important; padding-right: 0 !important; }
  .results-box .row.g-3 > .col-md-6 { width: 100% !important; }
  .card-body { padding: 16px !important; }
  .btn-lg { padding: 12px 16px !important; }
}

/* ---- Smooth scroll & tap targets ---- */
* { -webkit-tap-highlight-color: transparent; }
button, a, .btn { min-height: 44px; }

/* ---- CTA section mobile ---- */
@media (max-width: 768px) {
  .cta-section .row { flex-direction: column; }
  .cta-section .d-flex { flex-direction: column; gap: 8px; }
  .cta-section .d-flex input { border-radius: 8px !important; }
  .cta-section .d-flex button { border-radius: 8px !important; width: 100%; }
}

/* ---- Comparison table mobile ---- */
@media (max-width: 768px) {
  .table-responsive table { min-width: 500px; }
}

/* ---- Page grid cards mobile ---- */
@media (max-width: 576px) {
  .page-grid { grid-template-columns: 1fr !important; }
  .stats-grid { grid-template-columns: 1fr !important; }
}
/* Fix metric values overflowing result boxes */
.metric-value {
  font-size: clamp(1rem, 3.5vw, 1.75rem) !important;
  word-break: break-word;
  overflow-wrap: break-word;
  line-height: 1.2;
}
.result-metric {
  overflow: hidden;
  padding: 12px 8px;
}