/* =========================================================
   OmniTools - Main Layout & Core Styling
   ========================================================= */

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  background-image: 
    radial-gradient(circle at 15% 15%, rgba(59, 130, 246, 0.07) 0%, transparent 40%),
    radial-gradient(circle at 85% 80%, rgba(16, 185, 129, 0.05) 0%, transparent 40%);
  background-attachment: fixed;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

a {
  color: var(--accent-blue);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--accent-blue-hover);
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}

/* Header & Navigation */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  transition: all var(--transition-normal);
}

.nav-container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.brand-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--accent-blue), #6366f1);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  font-weight: 800;
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.brand-badge {
  font-size: 0.7rem;
  padding: 0.15rem 0.5rem;
  background: var(--accent-blue-light);
  color: var(--accent-blue);
  border-radius: var(--radius-full);
  font-weight: 600;
  text-transform: uppercase;
}

/* Nav Actions */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* Mobile Nav Actions (Hidden on Desktop > 768px) */
.nav-mobile-actions {
  display: none;
  align-items: center;
  gap: 0.5rem;
}

.mobile-icon-btn {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 1.1rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.mobile-icon-btn:hover, .mobile-icon-btn:active {
  background: var(--bg-secondary);
  border-color: var(--accent-blue);
}

.mobile-pro-badge {
  background: linear-gradient(135deg, #f59e0b, #d97706);
  color: #ffffff;
  font-weight: 800;
  border: none;
  border-radius: var(--radius-full);
  padding: 0.35rem 0.75rem;
  font-size: 0.8rem;
  box-shadow: 0 4px 10px rgba(245, 158, 11, 0.3);
  display: inline-flex;
  align-items: center;
  gap: 3px;
  cursor: pointer;
}

/* Mobile Drawer Overlay & Slide-out Menu */
.mobile-drawer-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 100000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

.mobile-drawer-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.mobile-drawer-content {
  position: absolute;
  top: 0;
  right: 0;
  width: 85%;
  max-width: 320px;
  height: 100vh;
  height: 100dvh;
  max-height: 100dvh;
  background: var(--bg-secondary);
  border-left: 1px solid var(--border-hover);
  padding: 1.5rem 1.25rem;
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: -10px 0 30px rgba(0, 0, 0, 0.7);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.mobile-drawer-overlay.active .mobile-drawer-content {
  transform: translateX(0);
}

.mobile-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 1.25rem;
}

.mobile-drawer-close {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.mobile-drawer-close:hover, .mobile-drawer-close:active {
  color: var(--accent-rose);
  border-color: var(--accent-rose);
  background: rgba(239, 68, 68, 0.15);
}

.mobile-drawer-menu {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  flex: 1;
}

.drawer-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.85rem 1rem;
  color: var(--text-primary);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: var(--radius-md);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  transition: all var(--transition-fast);
}

.drawer-item:hover, .drawer-item:active {
  background: var(--bg-card);
  border-color: var(--accent-blue);
  color: var(--accent-blue);
}

.drawer-pro-item {
  background: rgba(245, 158, 11, 0.12);
  color: #f59e0b;
  border: 1px solid rgba(245, 158, 11, 0.35);
  font-weight: 700;
}

.drawer-controls {
  margin-top: auto;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  gap: 0.75rem;
}

@media (max-width: 768px) {
  .nav-actions {
    display: none !important;
  }
  .nav-mobile-actions {
    display: flex !important;
  }
}



.search-trigger {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.5rem 1rem;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-size: 0.875rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.search-trigger:hover {
  background: var(--bg-secondary);
  border-color: var(--border-hover);
  color: var(--text-primary);
}

.search-shortcut {
  font-size: 0.75rem;
  padding: 0.15rem 0.4rem;
  background: var(--bg-primary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.theme-toggle-btn, .lang-toggle-btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.theme-toggle-btn:hover, .lang-toggle-btn:hover {
  background: var(--bg-secondary);
  color: var(--text-primary);
  border-color: var(--border-hover);
}

/* Main Container */
.main-content {
  flex: 1;
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
}

/* Hero Section */
.hero-section {
  text-align: center;
  padding: 3rem 1rem 2.5rem;
  position: relative;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 1rem;
  background: var(--accent-emerald-light);
  border: 1px solid rgba(16, 185, 129, 0.25);
  border-radius: var(--radius-full);
  color: var(--accent-emerald);
  font-size: 0.825rem;
  font-weight: 600;
  margin-bottom: 1.25rem;
}

.hero-pill-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--accent-emerald);
  box-shadow: 0 0 8px var(--accent-emerald);
  animation: pulseDot 2s infinite ease-in-out;
}

@keyframes pulseDot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

.hero-title {
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-bottom: 1rem;
}

.hero-highlight {
  color: var(--accent-blue);
  background: linear-gradient(135deg, #3b82f6 0%, #60a5fa 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 680px;
  margin: 0 auto 2rem;
  line-height: 1.6;
}

.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
  padding-top: 1rem;
}

.stat-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.stat-item strong {
  color: var(--text-primary);
  font-weight: 700;
}

/* Category Filter Bar */
.category-bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  overflow-x: auto;
  padding: 0.5rem 0.25rem 1.5rem;
  margin-bottom: 1.5rem;
  scrollbar-width: none;
}

.category-bar::-webkit-scrollbar {
  display: none;
}

.category-chip {
  padding: 0.55rem 1.1rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.category-chip:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border-color: var(--border-hover);
}

.category-chip.active {
  background: var(--accent-blue);
  border-color: var(--accent-blue);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(59, 130, 246, 0.3);
}

/* Tool Grid */
.tool-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
  margin-bottom: 3rem;
}

.tool-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
  text-decoration: none;
  color: inherit;
  backdrop-filter: blur(12px);
  cursor: pointer;
}

.tool-card:hover {
  transform: translateY(-4px);
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
  box-shadow: var(--shadow-md);
}

.tool-card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.tool-icon-wrapper {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  transition: transform var(--transition-fast);
}

.tool-card:hover .tool-icon-wrapper {
  transform: scale(1.08);
}

.tool-favorite-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast);
}

.tool-favorite-btn:hover, .tool-favorite-btn.favorited {
  color: var(--accent-amber);
}

.tool-badge-new {
  font-size: 0.7rem;
  padding: 0.2rem 0.55rem;
  background: var(--accent-rose-light);
  color: var(--accent-rose);
  border-radius: var(--radius-full);
  font-weight: 700;
  white-space: nowrap;
}

/* Category-Themed Tool Cards & Icons */
.tool-card.category-pdf .tool-icon-wrapper {
  background: linear-gradient(135deg, rgba(239, 68, 68, 0.15), rgba(244, 63, 94, 0.06));
  border: 1px solid rgba(239, 68, 68, 0.3);
  box-shadow: 0 4px 12px rgba(239, 68, 68, 0.1);
}
.tool-card.category-pdf:hover {
  border-color: rgba(239, 68, 68, 0.4);
  box-shadow: 0 10px 25px rgba(239, 68, 68, 0.12);
}
.tool-card.category-pdf .tool-badge-new {
  background: rgba(239, 68, 68, 0.12);
  color: #f87171;
  border: 1px solid rgba(239, 68, 68, 0.25);
}

.tool-card.category-image .tool-icon-wrapper {
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.15), rgba(6, 182, 212, 0.06));
  border: 1px solid rgba(16, 185, 129, 0.3);
  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.1);
}
.tool-card.category-image:hover {
  border-color: rgba(16, 185, 129, 0.4);
  box-shadow: 0 10px 25px rgba(16, 185, 129, 0.12);
}
.tool-card.category-image .tool-badge-new {
  background: rgba(16, 185, 129, 0.12);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.25);
}

.tool-card.category-dev .tool-icon-wrapper {
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.15), rgba(99, 102, 241, 0.06));
  border: 1px solid rgba(59, 130, 246, 0.3);
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.1);
}
.tool-card.category-dev:hover {
  border-color: rgba(59, 130, 246, 0.4);
  box-shadow: 0 10px 25px rgba(59, 130, 246, 0.12);
}
.tool-card.category-dev .tool-badge-new {
  background: rgba(59, 130, 246, 0.12);
  color: #60a5fa;
  border: 1px solid rgba(59, 130, 246, 0.25);
}

.tool-card.category-network .tool-icon-wrapper {
  background: linear-gradient(135deg, rgba(168, 85, 247, 0.15), rgba(139, 92, 246, 0.06));
  border: 1px solid rgba(168, 85, 247, 0.3);
  box-shadow: 0 4px 12px rgba(168, 85, 247, 0.1);
}
.tool-card.category-network:hover {
  border-color: rgba(168, 85, 247, 0.4);
  box-shadow: 0 10px 25px rgba(168, 85, 247, 0.12);
}
.tool-card.category-network .tool-badge-new {
  background: rgba(168, 85, 247, 0.12);
  color: #c084fc;
  border: 1px solid rgba(168, 85, 247, 0.25);
}

.tool-card.category-utility .tool-icon-wrapper {
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.15), rgba(234, 88, 12, 0.06));
  border: 1px solid rgba(245, 158, 11, 0.3);
  box-shadow: 0 4px 12px rgba(245, 158, 11, 0.1);
}
.tool-card.category-utility:hover {
  border-color: rgba(245, 158, 11, 0.4);
  box-shadow: 0 10px 25px rgba(245, 158, 11, 0.12);
}
.tool-card.category-utility .tool-badge-new {
  background: rgba(245, 158, 11, 0.12);
  color: #fbbf24;
  border: 1px solid rgba(245, 158, 11, 0.25);
}

.tool-card-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.4rem;
  letter-spacing: -0.01em;
}

.tool-card-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 1.25rem;
  flex: 1;
}

.tool-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border-subtle);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.tool-privacy-tag {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  color: var(--accent-emerald);
  font-weight: 600;
}

/* Footer */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-subtle);
  padding: 3.5rem 1.5rem 2rem;
  margin-top: auto;
}

.footer-container {
  max-width: var(--max-width);
  margin: 0 auto;
}

/* Footer Trust Bar */
.footer-trust-bar {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
  padding-bottom: 2.5rem;
  margin-bottom: 2.5rem;
  border-bottom: 1px solid var(--border-subtle);
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 1rem 1.25rem;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.trust-item:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
}

.trust-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
}

.trust-title {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.15rem;
}

.trust-desc {
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.35;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr 1fr;
  gap: 2rem;
  margin-bottom: 3rem;
}

.footer-brand h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

.footer-brand p {
  color: var(--text-secondary);
  font-size: 0.875rem;
  line-height: 1.6;
  max-width: 320px;
  margin-bottom: 1.25rem;
}

/* System Status Pill */
.system-status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.85rem;
  background: rgba(16, 185, 129, 0.08);
  border: 1px solid rgba(16, 185, 129, 0.25);
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--accent-emerald);
  margin-bottom: 1rem;
}

.status-dot-pulse {
  width: 8px;
  height: 8px;
  background: var(--accent-emerald);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--accent-emerald);
  animation: pulseDot 2s infinite ease-in-out;
}

/* Footer Contact Pill */
.footer-contact-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  color: var(--text-primary);
  font-size: 0.82rem;
  font-weight: 600;
  text-decoration: none;
  transition: all var(--transition-fast);
}

.footer-contact-pill:hover {
  border-color: var(--accent-blue);
  color: var(--accent-blue);
  transform: translateY(-2px);
}

.footer-col h4 {
  font-size: 0.88rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-primary);
  margin-bottom: 1rem;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.footer-links a {
  color: var(--text-secondary);
  font-size: 0.85rem;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--accent-blue);
  padding-left: 3px;
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.developer-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.developer-badge strong {
  color: var(--accent-blue);
}

/* Responsive Breakpoints */
@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
  }
}

@media (max-width: 768px) {
  /* Navbar Mobile Mode */
  .nav-actions {
    display: none !important;
  }
  .nav-mobile-actions {
    display: flex !important;
  }
  .brand span:not(.brand-badge) {
    font-size: 1.05rem;
  }
  .brand-badge {
    display: none;
  }

  /* Compact Mobile Footer */
  .footer {
    padding: 2.25rem 1.25rem 4.5rem; /* Safe horizontal margin for mobile bezels */
  }
  .footer-trust-bar {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.5rem;
    padding-bottom: 1.25rem;
    margin-bottom: 1.25rem;
    border-bottom: 1px solid var(--border-subtle);
  }
  .trust-item {
    flex: 1 1 calc(33.333% - 0.5rem);
    min-width: 90px;
    padding: 0.55rem 0.4rem;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 0.2rem;
  }
  .trust-icon {
    font-size: 1.15rem;
  }
  .trust-title {
    font-size: 0.72rem;
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-primary);
  }
  .trust-desc {
    display: none; /* Hide long paragraph on mobile for compact layout */
  }
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.85rem;
    margin-bottom: 1.5rem;
  }
  .footer-brand {
    grid-column: 1 / -1;
    text-align: center;
    padding-bottom: 0.85rem;
    border-bottom: 1px dashed var(--border-subtle);
    margin-bottom: 0.5rem;
  }
  .footer-brand p {
    font-size: 0.8rem;
    line-height: 1.4;
    max-width: 320px;
    margin: 0 auto 0.6rem;
  }
  .system-status-pill {
    margin: 0 auto 0.6rem;
  }
  .footer-col {
    background: var(--bg-card);
    padding: 0.85rem 0.75rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-subtle);
  }
  .footer-col h4 {
    font-size: 0.76rem;
    margin-bottom: 0.5rem;
    padding-bottom: 0.25rem;
    border-bottom: 1px solid var(--border-subtle);
    display: flex;
    align-items: center;
    gap: 0.25rem;
  }
  .footer-links {
    gap: 0.35rem;
  }
  .footer-links a {
    font-size: 0.74rem;
    padding: 0.15rem 0;
    display: block;
    line-height: 1.35;
    white-space: normal;
    word-break: break-word;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
    gap: 0.5rem;
    padding-top: 1.25rem;
    font-size: 0.78rem;
  }
}

@media (max-width: 540px) {
  .footer {
    padding: 2rem 1rem 4.5rem;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
  }
  .tool-grid {
    grid-template-columns: 1fr;
  }
  .hero-section {
    padding: 2rem 0.5rem 1.5rem;
  }
  .hero-title {
    font-size: 1.85rem;
  }
  .hero-subtitle {
    font-size: 0.95rem;
  }
  .hero-stats {
    gap: 0.75rem;
  }
  .nav-container {
    padding: 0 0.75rem;
  }
  /* Floating Support Button adjust on mobile */
  .floating-donation-btn {
    bottom: 1rem !important;
    right: 1rem !important;
    padding: 0.45rem 0.85rem !important;
    font-size: 0.8rem !important;
  }
}

/* =========================================================
   SEO Blog & Knowledge Base Styles
   ========================================================= */
.blog-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1.5rem 0 4rem;
}

.blog-hero {
  text-align: center;
  margin-bottom: 2.5rem;
  padding: 2.5rem 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
}

.blog-hero h1 {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
  letter-spacing: -0.02em;
}

.blog-hero p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 680px;
  margin: 0 auto;
  line-height: 1.6;
}

.blog-search-bar {
  max-width: 480px;
  margin: 1.5rem auto 0;
  position: relative;
}

.blog-search-input {
  width: 100%;
  padding: 0.85rem 1.25rem 0.85rem 2.8rem;
  background: var(--bg-primary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  color: var(--text-primary);
  font-size: 0.95rem;
  outline: none;
  transition: all var(--transition-fast);
}

.blog-search-input:focus {
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

.blog-search-icon {
  position: absolute;
  left: 1.1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 1rem;
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 1.75rem;
  margin-bottom: 3rem;
}

.blog-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: inherit;
  transition: all var(--transition-normal);
  cursor: pointer;
  position: relative;
}

.blog-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-hover);
  box-shadow: var(--shadow-lg);
  background: var(--bg-card-hover);
}

.blog-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
}

.blog-card-icon {
  width: 46px;
  height: 46px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
}

.blog-category-tag {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-full);
}

.blog-card-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.4;
  margin-bottom: 0.75rem;
}

.blog-card-summary {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1.5rem;
  flex: 1;
}

.blog-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1rem;
  border-top: 1px solid var(--border-subtle);
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* Article Reader View */
.article-container {
  max-width: 820px;
  margin: 0 auto;
  padding: 1.5rem 0 4rem;
}

.article-breadcrumbs {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.article-breadcrumbs a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.article-breadcrumbs a:hover {
  color: var(--accent-blue);
}

.article-header {
  margin-bottom: 2rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--border-subtle);
}

.article-header h1 {
  font-size: 2.3rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.3;
  margin-bottom: 1.25rem;
  letter-spacing: -0.02em;
}

.article-meta-bar {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.25rem;
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.article-author-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
  color: var(--text-primary);
}

.article-author-pill img {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  object-fit: cover;
}

.article-body {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--text-secondary);
}

.article-body p {
  margin-bottom: 1.5rem;
}

.article-body .lead-text {
  font-size: 1.18rem;
  line-height: 1.7;
  color: var(--text-primary);
  font-weight: 500;
  margin-bottom: 2rem;
}

.article-body h2 {
  font-size: 1.55rem;
  font-weight: 800;
  color: var(--text-primary);
  margin: 2.5rem 0 1rem;
  letter-spacing: -0.01em;
}

.article-body ul, .article-body ol {
  margin-bottom: 1.75rem;
  padding-left: 1.5rem;
}

.article-body li {
  margin-bottom: 0.6rem;
}

.guide-steps {
  counter-reset: guide-step;
  list-style: none;
  padding-left: 0 !important;
}

.guide-steps li {
  position: relative;
  padding-left: 3rem;
  margin-bottom: 1.5rem;
}

.guide-steps li::before {
  counter-increment: guide-step;
  content: counter(guide-step);
  position: absolute;
  left: 0;
  top: 0;
  width: 32px;
  height: 32px;
  background: var(--accent-blue);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9rem;
}

/* Tool CTA Banner inside article */
.blog-tool-cta {
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.12), rgba(16, 185, 129, 0.08));
  border: 1px solid rgba(59, 130, 246, 0.35);
  border-radius: var(--radius-lg);
  padding: 2rem;
  margin: 2.5rem 0;
  text-align: center;
  position: relative;
  box-shadow: 0 10px 30px rgba(59, 130, 246, 0.1);
}

.cta-badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.3rem 0.75rem;
  background: rgba(59, 130, 246, 0.2);
  color: var(--accent-blue);
  border-radius: var(--radius-full);
  margin-bottom: 0.85rem;
}

.blog-tool-cta h3 {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.blog-tool-cta p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  max-width: 540px;
  margin: 0 auto 1.5rem;
}

.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.75rem;
  font-size: 1rem;
  font-weight: 700;
  border-radius: var(--radius-full);
}

/* Author Box */
.author-box {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  padding: 1.75rem;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  margin-top: 3.5rem;
}

.author-box img {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--accent-blue);
}

.author-box h4 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.author-box p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin: 0;
}

@media (max-width: 640px) {
  .blog-grid {
    grid-template-columns: 1fr;
  }
  .article-header h1 {
    font-size: 1.8rem;
  }
  .blog-tool-cta {
    padding: 1.5rem 1rem;
  }
}