/* ==========================================================================
   WEBER CODE — Premium Academic AI Discovery Platform
   Main Stylesheet (CSS Tokens, Reset, Fluid Layout, Typography, SVG Icons, Responsive)
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Plus+Jakarta+Sans:wght@500;600;700;800;900&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
  /* Brand Teal Palette (Adapted for high-contrast, modern light aesthetic) */
  --primary-teal: #0D9488;
  --primary-teal-hover: #0F766E;
  --secondary-teal: #0284C7;
  --dark-teal: #115E59;
  --light-teal: #F0FDFA;
  --teal-glow: rgba(13, 148, 136, 0.12);
  --teal-glow-strong: rgba(13, 148, 136, 0.24);
  --teal-subtle: rgba(13, 148, 136, 0.06);
  --teal-border: rgba(13, 148, 136, 0.22);
  
  /* Modern Premium Light & Soft Neutral Palette */
  --bg-main: #F8FAFC;
  --bg-secondary: #FFFFFF;
  --bg-tertiary: #F1F5F9;
  --bg-subtle-warm: #FAFBFD;
  --card-bg: #FFFFFF;
  --card-bg-solid: #FFFFFF;
  --card-bg-hover: #FFFFFF;
  --border-subtle: #E2E8F0;
  --border-hover: rgba(13, 148, 136, 0.45);
  
  /* Typography Colors (High-Contrast Slate Hierarchy) */
  --text-white: #0F172A;
  --text-primary: #1E293B;
  --text-secondary: #475569;
  --text-muted: #64748B;
  --text-accent: #0D9488;

  /* Status Colors */
  --success: #10B981;
  --warning: #F59E0B;
  --danger: #EF4444;
  --info: #0284C7;

  /* Typography */
  --font-sans: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-display: 'Plus Jakarta Sans', 'Inter', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Spacing & Fluid Container Boundaries */
  --container-max: 1280px;
  --container-wide: 1440px;
  --header-height: 74px;
  --header-compact-height: 62px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 9999px;
  
  /* Transitions */
  --transition-fast: 0.18s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 0.28s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 0.45s cubic-bezier(0.16, 1, 0.3, 1);
  
  /* Shadows & Glass for Light Mode */
  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06), 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 6px 18px -2px rgba(15, 23, 42, 0.08), 0 2px 6px -1px rgba(15, 23, 42, 0.04);
  --shadow-lg: 0 16px 36px -4px rgba(15, 23, 42, 0.10), 0 6px 14px -2px rgba(15, 23, 42, 0.05);
  --shadow-teal: 0 10px 25px -4px rgba(13, 148, 136, 0.18);
  --glass-bg: rgba(255, 255, 255, 0.90);
  --glass-blur: blur(16px);
  --glass-border: 1px solid rgba(226, 232, 240, 0.85);
}

/* ==========================================================================
   Base Reset & Zero Horizontal Overflow Control
   ========================================================================== */

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: clip;
  width: 100%;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-main);
  color: var(--text-primary);
  line-height: 1.65;
  overflow-x: clip;
  position: relative;
  min-height: 100vh;
  width: 100%;
  max-width: 100%;
  display: flex;
  flex-direction: column;
}

body.menu-open {
  overflow: hidden !important;
  touch-action: none;
}

img, svg, video {
  max-width: 100%;
  height: auto;
  display: block;
}

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

button, input, textarea, select {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  border: none;
  background: transparent;
  outline: none;
  max-width: 100%;
}

button {
  cursor: pointer;
  touch-action: manipulation;
}

ul, ol {
  list-style: none;
}

:focus-visible {
  outline: 2px solid var(--primary-teal);
  outline-offset: 2px;
}

/* ==========================================================================
   SVG Vector Icon System & Icon Containers
   ========================================================================== */

.icon {
  width: 20px;
  height: 20px;
  stroke-width: 1.75;
  display: inline-block;
  vertical-align: middle;
  flex-shrink: 0;
}

.icon-sm { width: 16px; height: 16px; }
.icon-md { width: 22px; height: 22px; }
.icon-lg { width: 28px; height: 28px; }
.icon-xl { width: 36px; height: 36px; }

/* Standardized Icon Containers */
.icon-container,
.icon-container-sm,
.icon-container-lg {
  border-radius: var(--radius-md);
  background: var(--teal-subtle);
  border: 1px solid var(--teal-border);
  color: var(--primary-teal);
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  flex-shrink: 0;
  transition: all var(--transition-normal);
}

.icon-container {
  width: clamp(44px, 6vw, 54px);
  height: clamp(44px, 6vw, 54px);
}

.icon-container-sm {
  width: 40px;
  height: 40px;
  min-width: 40px;
  min-height: 40px;
  border-radius: var(--radius-sm);
}

.icon-container-lg {
  width: clamp(54px, 8vw, 68px);
  height: clamp(54px, 8vw, 68px);
  min-width: clamp(54px, 8vw, 68px);
  min-height: clamp(54px, 8vw, 68px);
  border-radius: var(--radius-xl);
}

.icon-container:hover,
.icon-container-sm:hover,
.icon-container-lg:hover {
  border-color: var(--primary-teal);
  background: rgba(72, 196, 200, 0.16);
  box-shadow: 0 0 16px var(--teal-subtle);
  transform: translateY(-2px);
}

/* ==========================================================================
   Fluid Typography System
   ========================================================================== */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--text-white);
  line-height: 1.2;
  letter-spacing: -0.025em;
  overflow-wrap: break-word;
  word-break: break-word;
}

h1 {
  font-size: clamp(1.75rem, 4.5vw + 0.4rem, 3.85rem);
  font-weight: 800;
  letter-spacing: -0.035em;
}

h2 {
  font-size: clamp(1.35rem, 3vw + 0.3rem, 2.5rem);
  font-weight: 800;
}

h3 {
  font-size: clamp(1.15rem, 2vw + 0.2rem, 1.7rem);
  font-weight: 700;
}

h4 {
  font-size: clamp(0.95rem, 1.5vw + 0.1rem, 1.25rem);
  font-weight: 600;
}

p {
  color: var(--text-secondary);
  font-size: clamp(0.875rem, 0.9vw + 0.2rem, 1.05rem);
  line-height: 1.65;
  overflow-wrap: break-word;
  word-break: break-word;
}

.text-gradient {
  background: linear-gradient(135deg, var(--primary-teal) 0%, var(--secondary-teal) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-teal { color: var(--primary-teal) !important; }
.text-white { color: var(--text-white) !important; }
.text-muted { color: var(--text-muted) !important; }
.text-mono { font-family: var(--font-mono); }

/* ==========================================================================
   Fluid Responsive Container System
   ========================================================================== */

.container {
  width: 100%;
  max-width: min(100% - clamp(1.25rem, 4vw, 3.5rem), var(--container-max));
  margin-inline: auto;
  padding-left: 0;
  padding-right: 0;
}

.container-wide {
  width: 100%;
  max-width: min(100% - clamp(1.25rem, 4vw, 3.5rem), var(--container-wide));
  margin-inline: auto;
  padding-left: 0;
  padding-right: 0;
}

.section-py {
  padding-top: clamp(2.75rem, 5vw, 5.5rem);
  padding-bottom: clamp(2.75rem, 5vw, 5.5rem);
}

.section-py-lg {
  padding-top: clamp(3.75rem, 7vw, 7rem);
  padding-bottom: clamp(3.75rem, 7vw, 7rem);
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto clamp(1.75rem, 3.5vw, 3.5rem) auto;
}

.section-header.text-left {
  text-align: left;
  margin-left: 0;
}

.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.35rem 0.85rem;
  background: var(--teal-subtle);
  border: 1px solid var(--teal-border);
  border-radius: var(--radius-full);
  color: var(--primary-teal);
  font-size: clamp(0.725rem, 0.85vw, 0.825rem);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 1rem;
}

.section-title {
  margin-bottom: 0.75rem;
}

.section-subtitle {
  font-size: clamp(0.9rem, 1.1vw, 1.125rem);
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ==========================================================================
   Responsive Grid System
   ========================================================================== */

.grid {
  display: grid;
  gap: clamp(1rem, 2vw, 1.75rem);
  width: 100%;
}

.grid-cols-1 { grid-template-columns: 1fr; }
.grid-cols-2 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr)); }
.grid-cols-3 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr)); }
.grid-cols-4 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr)); }
.grid-cols-5 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 200px), 1fr)); }

@media (max-width: 900px) {
  .grid-cols-2, .grid-cols-3, .grid-cols-5 {
    grid-template-columns: 1fr;
  }
  .grid-cols-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 540px) {
  .grid-cols-4 {
    grid-template-columns: 1fr;
  }
}

/* Flex Utilities */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.gap-1 { gap: 0.25rem; }
.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 0.75rem; }
.gap-4 { gap: 1rem; }
.gap-6 { gap: 1.5rem; }
.gap-8 { gap: 2rem; }
.gap-10 { gap: 2.5rem; }
.gap-12 { gap: 3rem; }
.gap-16 { gap: 4rem; }
.flex-wrap { flex-wrap: wrap; }
.flex-1 { flex: 1 1 0%; min-width: 0; }

/* ==========================================================================
   Header & Mobile Navigation System
   ========================================================================== */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  z-index: 1000;
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.90);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--border-subtle);
  transition: height var(--transition-fast), background var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
  overflow: visible;
}

.site-header.scrolled {
  height: var(--header-compact-height);
  background: rgba(255, 255, 255, 0.98);
  border-bottom-color: var(--border-subtle);
  box-shadow: 0 4px 20px -2px rgba(15, 23, 42, 0.08);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  position: relative;
}

.brand-logo-link {
  display: inline-flex;
  align-items: center;
  gap: clamp(0.4rem, 1.5vw, 0.75rem);
  text-decoration: none;
  min-height: 48px;
  flex-shrink: 0;
  transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.brand-logo-link:hover {
  opacity: 0.95;
  transform: translateY(-1px);
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  justify-content: flex-start;
  flex-shrink: 0;
}

.brand-logo-wrap {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  padding: 0;
  border-radius: 0;
  border: none;
  box-shadow: none;
  transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.brand-logo-wrap:hover {
  opacity: 0.95;
  transform: translateY(-1px);
}

/* Default Logo Image (Laptop / Desktop) */
.brand-logo-img {
  height: 48px;
  max-height: 52px;
  width: auto;
  max-width: 220px;
  object-fit: contain;
  display: block;
  transition: height var(--transition-fast), max-height var(--transition-fast), max-width var(--transition-fast);
}

/* Header Specific Logo */
.site-header .brand-logo-img {
  height: 48px;
  max-height: 52px;
  width: auto;
  max-width: 220px;
}

.site-header.scrolled .brand-logo-img {
  height: 40px;
  max-height: 44px;
  max-width: 190px;
}

/* Footer Specific Logo */
.footer-brand .brand-logo-img {
  height: 56px;
  max-height: 60px;
  width: auto;
  max-width: 240px;
  margin-bottom: 0.25rem;
}

.brand-text-wrap {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(0.95rem, 1.8vw, 1.15rem);
  letter-spacing: -0.02em;
  color: var(--text-white);
  line-height: 1.1;
  white-space: nowrap;
}

.brand-subtitle {
  font-size: clamp(0.55rem, 0.9vw, 0.625rem);
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--primary-teal);
  text-transform: uppercase;
  white-space: nowrap;
}

/* Desktop Nav Menu */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-link {
  padding: 0.5rem 0.75rem;
  color: var(--text-secondary);
  font-size: 0.925rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background var(--transition-fast);
  position: relative;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

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

.nav-link.active {
  color: var(--primary-teal);
  font-weight: 600;
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 15%;
  right: 15%;
  height: 2px;
  background: var(--primary-teal);
  border-radius: var(--radius-full);
}

.mobile-menu-cta {
  display: none;
}

/* Header Actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: clamp(0.4rem, 1vw, 0.75rem);
  flex-shrink: 0;
}

.header-stack-btn {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 0.75rem;
  background: var(--light-teal);
  border: 1px solid var(--teal-border);
  border-radius: var(--radius-full);
  color: var(--primary-teal);
  font-size: 0.825rem;
  font-weight: 600;
  transition: all var(--transition-fast);
  min-height: 40px;
}

.header-stack-btn:hover {
  background: rgba(13, 148, 136, 0.12);
  border-color: var(--primary-teal);
  transform: translateY(-1px);
}

.header-stack-count {
  background: var(--primary-teal);
  color: var(--bg-main);
  font-size: 0.75rem;
  font-weight: 800;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Mobile Nav Toggle */
.mobile-nav-toggle {
  display: none;
  background: var(--teal-subtle);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  padding: 0.45rem;
  min-height: 42px;
  min-width: 42px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.mobile-nav-toggle:hover {
  color: var(--primary-teal);
  background: var(--light-teal);
  border-color: var(--primary-teal);
}

/* Mobile Backdrop Overlay */
.mobile-nav-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.45);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.mobile-nav-overlay.active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

/* Mobile / Tablet Viewport (< 1025px) */
@media (max-width: 1024px) {
  .nav-menu {
    position: fixed;
    top: var(--header-height);
    right: 0;
    left: auto;
    width: min(320px, 86vw);
    height: calc(100dvh - var(--header-height));
    margin: 0;
    box-sizing: border-box;
    background: #FFFFFF;
    border-left: 1px solid var(--border-subtle);
    border-bottom: 1px solid var(--border-subtle);
    box-shadow: -10px 10px 30px rgba(15, 23, 42, 0.14);
    padding: 1.25rem 1.15rem 2rem 1.15rem;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 0.35rem;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateX(100%);
    transition: transform 0.32s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.22s ease, visibility 0.32s;
    z-index: 1000;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }

  .site-header.scrolled .nav-menu {
    top: var(--header-compact-height);
    height: calc(100dvh - var(--header-compact-height));
  }

  .nav-menu.active {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateX(0);
  }

  .nav-menu .nav-link {
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 0.98rem;
    font-weight: 600;
    color: var(--text-primary);
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    justify-content: flex-start;
    transition: all var(--transition-fast);
  }

  .nav-menu .nav-link:hover {
    color: var(--primary-teal);
    background: rgba(13, 148, 136, 0.06);
  }

  .nav-menu .nav-link.active {
    color: var(--primary-teal);
    background: var(--light-teal);
    border-color: rgba(13, 148, 136, 0.2);
  }

  .nav-menu .nav-link.active::after {
    display: none;
  }

  .mobile-menu-cta {
    display: block;
    margin-top: 0.75rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--border-subtle);
    width: 100%;
  }

  .mobile-menu-cta .btn {
    width: 100%;
    justify-content: center;
    border-radius: var(--radius-md);
    padding: 0.75rem 1.25rem;
    font-size: 0.95rem;
    font-weight: 700;
  }

  .mobile-nav-toggle {
    display: inline-flex;
  }

  .header-actions .btn {
    display: none;
  }

  .site-header .brand-logo-img {
    height: 46px;
    max-width: 200px;
  }

  .footer-brand .brand-logo-img {
    height: 52px;
    max-width: 220px;
  }
}

@media (max-width: 768px) {
  .site-header .brand-logo-img {
    height: 44px;
    max-width: 185px;
  }

  .site-header.scrolled .brand-logo-img {
    height: 38px;
    max-width: 160px;
  }

  .footer-brand .brand-logo-img {
    height: 50px;
    max-width: 210px;
  }
}

@media (max-width: 480px) {
  .site-header .brand-logo-img {
    height: 42px;
    max-width: 170px;
  }

  .site-header.scrolled .brand-logo-img {
    height: 36px;
    max-width: 145px;
  }

  .footer-brand .brand-logo-img {
    height: 46px;
    max-width: 195px;
  }

  .header-stack-btn span:first-of-type {
    display: none;
  }
  .header-stack-btn {
    padding: 0.4rem 0.55rem;
  }
}

@media (min-width: 1025px) {
  .mobile-nav-overlay {
    display: none !important;
  }
}

/* ==========================================================================
   Buttons & CTAs
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.7rem 1.35rem;
  font-size: clamp(0.875rem, 1vw, 0.95rem);
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  text-decoration: none;
  white-space: nowrap;
  min-height: 44px;
  max-width: 100%;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-teal) 0%, var(--secondary-teal) 100%);
  color: #FFFFFF;
  box-shadow: 0 4px 14px rgba(13, 148, 136, 0.28);
  font-weight: 700;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 22px rgba(13, 148, 136, 0.38);
  color: #FFFFFF;
}

.btn-secondary {
  background: #FFFFFF;
  color: var(--text-white);
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  background: var(--bg-tertiary);
  border-color: rgba(13, 148, 136, 0.35);
  color: var(--primary-teal);
  transform: translateY(-2px);
}

.btn-outline-teal {
  background: #FFFFFF;
  color: var(--primary-teal);
  border: 1.5px solid var(--primary-teal);
}

.btn-outline-teal:hover {
  background: var(--light-teal);
  border-color: var(--primary-teal-hover);
  color: var(--primary-teal-hover);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 0.4rem 0.85rem;
  font-size: 0.825rem;
  min-height: 38px;
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: 0.85rem 1.75rem;
  font-size: clamp(0.95rem, 1.1vw, 1.05rem);
  min-height: 48px;
  border-radius: var(--radius-md);
}

.btn-icon {
  width: 44px;
  height: 44px;
  padding: 0;
  border-radius: var(--radius-md);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

@media (max-width: 480px) {
  .btn:not(.btn-sm):not(.btn-icon):not(.compare-stack-btn):not(.card-stack-toggle-btn) {
    width: 100%;
  }
}

/* ==========================================================================
   Cards & Surfaces
   ========================================================================== */

.card {
  background: var(--card-bg);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: clamp(1.15rem, 2.2vw, 1.85rem);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal), background-color var(--transition-normal);
  position: relative;
  overflow: hidden;
  max-width: 100%;
}

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

.card-glow-teal {
  position: relative;
  border-color: rgba(13, 148, 136, 0.22);
}

.card-glow-teal::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--primary-teal), transparent);
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.card-glow-teal:hover {
  box-shadow: 0 12px 30px -4px rgba(13, 148, 136, 0.15);
}

.card-glow-teal:hover::before {
  opacity: 1;
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.25rem 0.65rem;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  white-space: nowrap;
}

.badge-teal {
  background: var(--teal-subtle);
  color: var(--primary-teal);
  border: 1px solid var(--teal-border);
}

.badge-free {
  background: rgba(16, 185, 129, 0.12);
  color: #10B981;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.badge-freemium {
  background: rgba(59, 130, 246, 0.12);
  color: #60A5FA;
  border: 1px solid rgba(59, 130, 246, 0.3);
}

.badge-paid {
  background: rgba(245, 158, 11, 0.12);
  color: #FBBF24;
  border: 1px solid rgba(245, 158, 11, 0.3);
}

/* ==========================================================================
   Hero Section & Canvas
   ========================================================================== */

.hero-section {
  position: relative;
  min-height: 85vh;
  padding-top: calc(var(--header-height) + clamp(1.25rem, 3vw, 2.5rem));
  padding-bottom: clamp(2.5rem, 5vw, 4.5rem);
  display: flex;
  align-items: center;
  overflow: hidden;
  width: 100%;
}

.hero-bg-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
  opacity: 0.55;
  max-width: 100%;
}

@media (max-width: 768px) {
  .hero-bg-canvas {
    opacity: 0.35;
  }
}

.hero-glow-blob {
  position: absolute;
  width: clamp(240px, 40vw, 500px);
  height: clamp(240px, 40vw, 500px);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(13, 148, 136, 0.12) 0%, rgba(248, 250, 252, 0) 70%);
  filter: blur(60px);
  pointer-events: none;
  z-index: 1;
  max-width: 100vw;
}

.hero-glow-1 { top: -80px; right: -40px; }
.hero-glow-2 { bottom: -120px; left: -80px; }

.hero-content-wrapper {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: clamp(1.75rem, 3.5vw, 3.5rem);
  align-items: center;
  width: 100%;
}

@media (max-width: 1024px) {
  .hero-content-wrapper {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
}

.hero-badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.85rem;
  background: rgba(72, 196, 200, 0.08);
  border: 1px solid var(--teal-border);
  border-radius: var(--radius-full);
  color: var(--primary-teal);
  font-size: clamp(0.725rem, 0.85vw, 0.825rem);
  font-weight: 600;
  margin-bottom: 1.25rem;
  max-width: 100%;
}

.hero-badge-dot {
  width: 8px;
  height: 8px;
  background-color: var(--primary-teal);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--primary-teal);
  animation: pulse-dot 2s infinite;
  flex-shrink: 0;
}

.hero-title {
  margin-bottom: 1.25rem;
  line-height: 1.16;
}

.hero-description {
  font-size: clamp(0.95rem, 1.15vw, 1.15rem);
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 1.75rem;
  max-width: 620px;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
  width: 100%;
}

@media (max-width: 480px) {
  .hero-cta-group {
    flex-direction: column;
    gap: 0.75rem;
  }
}

/* Hero Goal Quick Pill */
.hero-goal-pill {
  margin-top: 1.25rem;
  padding: 0.45rem 0.65rem 0.45rem 1.1rem;
  border-radius: var(--radius-full);
  background: #FFFFFF;
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  width: 100%;
  max-width: 100%;
}

@media (max-width: 480px) {
  .hero-goal-pill {
    padding: 0.35rem 0.5rem 0.35rem 0.85rem;
    gap: 0.5rem;
  }
}

/* Hero Goal Input Box */
.hero-goal-box {
  background: #FFFFFF;
  border: 1px solid rgba(72, 196, 200, 0.3);
  border-radius: var(--radius-xl);
  padding: clamp(1rem, 2vw, 1.5rem);
  box-shadow: var(--shadow-md);
  margin-top: 1rem;
  width: 100%;
}

.hero-goal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.75rem;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.hero-goal-title {
  font-size: clamp(0.75rem, 0.9vw, 0.85rem);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--primary-teal);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.hero-goal-input-wrap {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  width: 100%;
}

.hero-goal-input {
  width: 100%;
  min-height: 70px;
  background: var(--bg-main);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 0.75rem 0.95rem;
  color: var(--text-white);
  font-size: 0.925rem;
  resize: vertical;
  transition: border-color var(--transition-fast);
}

.hero-goal-input:focus {
  border-color: var(--primary-teal);
}

.hero-goal-samples {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
  margin-top: 0.35rem;
}

.hero-sample-btn {
  font-size: 0.75rem;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.04);
  padding: 0.3rem 0.6rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
  transition: all var(--transition-fast);
  min-height: 32px;
}

.hero-sample-btn:hover {
  color: var(--primary-teal);
  border-color: var(--teal-border);
  background: var(--teal-subtle);
}

/* Hero Visual AI Graph & Mockup Card */
.hero-visual-card {
  background: #FFFFFF;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: clamp(0.5rem, 1.5vw, 0.75rem);
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
  width: 100%;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

@media (max-width: 1024px) {
  .hero-visual-card {
    max-width: 580px;
    margin-inline: auto;
  }
}

.hero-visual-inner {
  position: relative;
  border-radius: calc(var(--radius-xl) - 4px);
  overflow: hidden;
  background: var(--bg-tertiary);
  width: 100%;
}

.hero-visual-img {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  display: block;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.hero-telemetry-badge {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 0.45rem;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: clamp(0.25rem, 0.6vw, 0.35rem) clamp(0.55rem, 1vw, 0.75rem);
  border-radius: var(--radius-full);
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-sm);
  font-size: clamp(0.7rem, 0.85vw, 0.78rem);
  font-weight: 700;
  z-index: 3;
  max-width: calc(100% - 1.2rem);
  white-space: nowrap;
}

.hero-telemetry-badge.badge-top-left {
  top: clamp(0.5rem, 1.5vw, 0.85rem);
  left: clamp(0.5rem, 1.5vw, 0.85rem);
  color: var(--primary-teal);
}

.hero-telemetry-badge.badge-bottom-right {
  bottom: clamp(0.5rem, 1.5vw, 0.85rem);
  right: clamp(0.5rem, 1.5vw, 0.85rem);
  color: var(--text-white);
}

.hero-telemetry-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #10B981;
  display: inline-block;
  flex-shrink: 0;
}

.hero-node-flow {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  position: relative;
  width: 100%;
}

.hero-node-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: var(--bg-main);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 0.65rem 0.85rem;
  transition: all var(--transition-normal);
  width: 100%;
}

.hero-node-item.active {
  border-color: var(--primary-teal);
  background: rgba(72, 196, 200, 0.08);
}

.hero-node-icon {
  width: 36px;
  height: 36px;
  background: var(--teal-subtle);
  border: 1px solid var(--teal-border);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-teal);
  flex-shrink: 0;
}

.hero-node-details {
  flex: 1;
  min-width: 0;
}

.hero-node-step {
  font-size: 0.685rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

.hero-node-title {
  font-size: clamp(0.825rem, 1vw, 0.925rem);
  font-weight: 700;
  color: var(--text-white);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.hero-node-tool {
  font-family: var(--font-mono);
  font-size: 0.725rem;
  color: var(--primary-teal);
  background: rgba(72, 196, 200, 0.12);
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

/* ==========================================================================
   Trust / Value Strip
   ========================================================================== */

.trust-strip {
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  background: var(--bg-tertiary);
  padding: clamp(1.5rem, 3vw, 2.25rem) 0;
  backdrop-filter: var(--glass-blur);
  width: 100%;
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: clamp(0.85rem, 1.8vw, 1.5rem);
  text-align: center;
  width: 100%;
}

@media (max-width: 1024px) {
  .trust-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 600px) {
  .trust-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 380px) {
  .trust-grid { grid-template-columns: 1fr; }
}

.trust-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.35rem;
  padding: 0.5rem;
}

.trust-item-icon {
  color: var(--primary-teal);
  margin-bottom: 0.2rem;
}

.trust-item-title {
  font-size: clamp(0.875rem, 1vw, 1rem);
  font-weight: 700;
  color: var(--text-white);
}

.trust-item-desc {
  font-size: 0.775rem;
  color: var(--text-muted);
}

/* ==========================================================================
   Comparison Section: Traditional vs WEBER CODE
   ========================================================================== */

.diff-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(1.25rem, 2.5vw, 2rem);
  width: 100%;
}

@media (max-width: 860px) {
  .diff-grid { grid-template-columns: 1fr; }
}

.diff-card {
  padding: clamp(1.35rem, 2.5vw, 2.25rem);
  border-radius: var(--radius-xl);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.diff-card.traditional {
  background: rgba(17, 24, 39, 0.4);
  border: 1px solid var(--border-subtle);
  opacity: 0.9;
}

.diff-card.webercode {
  background: linear-gradient(145deg, rgba(17, 24, 39, 0.88) 0%, rgba(13, 30, 36, 0.88) 100%);
  border: 1px solid var(--primary-teal);
  box-shadow: var(--shadow-teal);
  position: relative;
}

.diff-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
  align-self: flex-start;
}

.diff-steps {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 1.25rem;
}

.diff-step-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: clamp(0.825rem, 0.95vw, 0.925rem);
  padding: 0.6rem 0.75rem;
  border-radius: var(--radius-sm);
  background: rgba(0, 0, 0, 0.25);
}

.diff-step-num {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 700;
  flex-shrink: 0;
}

/* ==========================================================================
   Tool Cards & Directory
   ========================================================================== */

.tool-card {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.tool-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.65rem;
  margin-bottom: 0.85rem;
}

.tool-icon-wrap {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  padding: 6px;
  box-sizing: border-box;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
  transition: all var(--transition-normal);
}

.tool-card:hover .tool-icon-wrap {
  background: rgba(255, 255, 255, 0.09);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px) scale(1.05);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.35);
}

.tool-icon-wrap svg,
.tool-icon-wrap img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
  border-radius: inherit;
}

.tool-logo-svg {
  width: 100%;
  height: 100%;
  max-width: 32px;
  max-height: 32px;
  object-fit: contain;
  display: block;
}

.floating-tool-icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
  border-radius: inherit;
}

.detail-logo-large img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
  border-radius: inherit;
}

.tool-card-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: 0.15rem;
}

.tool-card-category {
  font-size: 0.725rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.tool-card-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.55;
  margin-bottom: 1.15rem;
  flex-grow: 1;
}

.tool-card-meta {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border-subtle);
  margin-bottom: 1.15rem;
}

.tool-meta-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
  gap: 0.5rem;
}

.tool-meta-label {
  color: var(--text-muted);
  white-space: nowrap;
}

.tool-meta-value {
  color: var(--text-primary);
  font-weight: 600;
}

.tool-card-actions {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  margin-top: auto;
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
  background: #FFFFFF;
  border-top: 1px solid var(--border-subtle);
  padding: clamp(2.5rem, 5vw, 4.5rem) 0 2rem 0;
  margin-top: auto;
  position: relative;
  z-index: 10;
  width: 100%;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.8fr 1fr 1fr 1fr;
  gap: clamp(1.5rem, 3vw, 3rem);
  margin-bottom: 2.5rem;
  width: 100%;
}

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

@media (max-width: 600px) {
  .footer-grid { grid-template-columns: 1fr; }
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  max-width: 340px;
}

.footer-tagline {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Footer Social Media Links */
.footer-social-links {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin-top: 0.35rem;
  flex-wrap: wrap;
}

.footer-social-icon {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  background: #FFFFFF;
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  transition: all var(--transition-fast);
  text-decoration: none;
  box-shadow: var(--shadow-sm);
}

.footer-social-icon:hover {
  background: var(--light-teal);
  color: var(--primary-teal);
  border-color: var(--primary-teal);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(13, 148, 136, 0.18);
}

.footer-social-icon svg {
  width: 18px;
  height: 18px;
}

.footer-column-title {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.footer-link {
  color: var(--text-secondary);
  font-size: 0.85rem;
  transition: color var(--transition-fast), transform var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  min-height: 32px;
}

.footer-link:hover {
  color: var(--primary-teal);
  transform: translateX(3px);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-subtle);
  font-size: 0.8rem;
  color: var(--text-muted);
  flex-wrap: wrap;
  gap: 1rem;
  width: 100%;
}

@media (max-width: 600px) {
  .footer-bottom {
    flex-direction: column;
    text-align: center;
    justify-content: center;
  }
}

.footer-legal-links {
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
}

/* ==========================================================================
   Interactive Drawer: My AI Stack
   ========================================================================== */

.stack-drawer-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.45);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 2000;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

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

.stack-drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(420px, 100vw);
  max-width: 100vw;
  background: #FFFFFF;
  border-left: 1px solid var(--border-subtle);
  z-index: 2001;
  transform: translateX(100%);
  visibility: hidden;
  box-shadow: none;
  transition: transform var(--transition-slow), visibility var(--transition-slow), box-shadow var(--transition-slow);
  display: flex;
  flex-direction: column;
}

.stack-drawer.active {
  transform: translateX(0);
  visibility: visible;
  box-shadow: -10px 0 35px rgba(15, 23, 42, 0.12);
}

.stack-drawer-header {
  padding: 1.15rem 1.25rem;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.stack-drawer-body {
  flex: 1;
  overflow-y: auto;
  padding: 1.15rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.stack-drawer-footer {
  padding: 1.15rem 1.25rem;
  border-top: 1px solid var(--border-subtle);
  background: var(--bg-main);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.stack-item-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 0.65rem 0.85rem;
  gap: 0.5rem;
  width: 100%;
}

.stack-item-info {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  min-width: 0;
}

.stack-item-remove {
  color: var(--text-muted);
  padding: 0.35rem;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  min-height: 36px;
  min-width: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.stack-item-remove:hover {
  color: var(--danger);
  background: rgba(239, 68, 68, 0.1);
}

/* ==========================================================================
   Toast Notifications
   ========================================================================== */

.toast-container {
  position: fixed;
  bottom: 1.25rem;
  right: 1.25rem;
  z-index: 3000;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  pointer-events: none;
  max-width: min(400px, calc(100vw - 2.5rem));
}

.toast {
  pointer-events: auto;
  background: #FFFFFF; box-shadow: var(--shadow-md);
  border: 1px solid var(--primary-teal);
  border-radius: var(--radius-md);
  padding: 0.75rem 1.15rem;
  color: var(--text-white);
  box-shadow: var(--shadow-teal);
  backdrop-filter: var(--glass-blur);
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-size: 0.875rem;
  transform: translateY(20px);
  opacity: 0;
  animation: toast-in 0.3s forwards cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes toast-in {
  to { transform: translateY(0); opacity: 1; }
}

/* ==========================================================================
   AI GADGET & DIRECTORY PLATFORM ENHANCEMENTS
   ========================================================================== */

/* Hero Layout Grid */
.hero-layout-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: clamp(2rem, 4vw, 3.5rem);
  align-items: center;
}

@media (max-width: 992px) {
  .hero-layout-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .hero-text-block {
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  
  .hero-cta-group {
    justify-content: center;
  }
  
  .hero-micro-trust {
    justify-content: center;
  }
}

.hero-micro-trust {
  display: flex;
  align-items: center;
  gap: clamp(0.75rem, 1.5vw, 1.5rem);
  flex-wrap: wrap;
}

.micro-trust-item {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* Visual Orbit Stage */
.hero-visual-stage {
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 380px;
}

.visual-orbit-container {
  position: relative;
  width: 100%;
  max-width: 440px;
  height: 380px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hub-center-glow {
  position: absolute;
  width: 130px;
  height: 130px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(13, 148, 136, 0.2) 0%, #FFFFFF 75%);
  border: 2px solid var(--primary-teal);
  box-shadow: 0 0 35px var(--teal-glow-strong);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 5;
}

.hub-core {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.hub-label {
  font-size: 0.72rem;
  font-weight: 800;
  color: var(--text-white);
  letter-spacing: 0.08em;
  margin-top: 0.25rem;
}

/* Floating Tool Badges */
.floating-tool-badge {
  position: absolute;
  background: #FFFFFF;
  border: 1px solid var(--teal-border);
  border-radius: var(--radius-lg);
  padding: 0.65rem 0.95rem;
  display: flex;
  align-items: center;
  gap: 0.65rem;
  box-shadow: var(--shadow-md);
  z-index: 6;
  transition: all var(--transition-normal);
}

.floating-tool-badge:hover {
  transform: scale(1.05) !important;
  border-color: var(--primary-teal);
  box-shadow: var(--shadow-teal);
}

.floating-tool-badge .floating-tool-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  padding: 5px;
  box-sizing: border-box;
}

.floating-tool-badge .floating-tool-icon svg {
  width: 100%;
  height: 100%;
  display: block;
}

.floating-tool-info {
  display: flex;
  flex-direction: column;
  text-align: left;
}

.floating-tool-info strong {
  font-size: 0.9rem;
  color: var(--text-white);
  line-height: 1.2;
}

.floating-tool-info span {
  font-size: 0.75rem;
  color: var(--primary-teal);
}

.badge-top-left {
  top: 10%;
  left: 2%;
}

.badge-top-right {
  top: 12%;
  right: 2%;
}

.badge-bottom-left {
  bottom: 12%;
  left: 4%;
}

.badge-bottom-right {
  bottom: 14%;
  right: 4%;
}

.floating-search-chip {
  position: absolute;
  bottom: -4%;
  background: #FFFFFF; box-shadow: var(--shadow-sm);
  border: 1px solid var(--primary-teal);
  border-radius: var(--radius-full);
  padding: 0.45rem 1.1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  color: var(--text-white);
  box-shadow: 0 4px 20px var(--teal-glow);
  z-index: 7;
}

/* Float Keyframe Animations */
.float-anim-1 { animation: floatY1 5s ease-in-out infinite; }
.float-anim-2 { animation: floatY2 6s ease-in-out infinite 0.5s; }
.float-anim-3 { animation: floatY1 5.5s ease-in-out infinite 1s; }
.float-anim-4 { animation: floatY2 6.5s ease-in-out infinite 1.5s; }
.float-anim-pulse { animation: pulseGlow 3s ease-in-out infinite; }

@keyframes floatY1 {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

@keyframes floatY2 {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(10px); }
}

@keyframes pulseGlow {
  0%, 100% { box-shadow: 0 4px 15px var(--teal-glow); }
  50% { box-shadow: 0 4px 25px var(--teal-glow-strong); }
}

/* ==========================================================================
   Main AI Tool Search Input Bar
   ========================================================================== */
.search-input-wrapper {
  position: relative;
  max-width: 780px;
  margin: 0 auto;
  width: 100%;
}

.search-input-wrapper .search-input-icon {
  position: absolute;
  left: 1.25rem;
  top: 50%;
  transform: translateY(-50%);
  pointer-events: none;
  display: flex;
  align-items: center;
  z-index: 2;
}

.main-search-input {
  width: 100%;
  background: #FFFFFF;
  border: 1.5px solid var(--teal-border);
  border-radius: var(--radius-full);
  padding: 1rem 3.5rem 1rem 3.5rem;
  color: var(--text-white);
  font-size: clamp(0.95rem, 1.2vw, 1.1rem);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
}

.main-search-input:focus {
  border-color: var(--primary-teal);
  box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.15);
  outline: none;
  background: #FFFFFF;
}

.search-clear-btn {
  position: absolute;
  right: 1.25rem;
  top: 50%;
  transform: translateY(-50%);
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.35rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color var(--transition-fast);
}

.search-clear-btn:hover {
  color: var(--text-white);
}

.keyword-chip {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  color: var(--text-secondary);
  font-size: 0.78rem;
  padding: 0.25rem 0.75rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.keyword-chip:hover {
  background: var(--teal-subtle);
  border-color: var(--primary-teal);
  color: var(--primary-teal);
}

/* ==========================================================================
   Category Filter Strip (Horizontal Swipe on Mobile)
   ========================================================================== */
.category-filter-strip-wrapper {
  position: relative;
  width: 100%;
  overflow: hidden;
}

.category-filter-strip {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  overflow-x: auto;
  padding: 0.5rem 0.25rem 0.75rem 0.25rem;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: rgba(72, 196, 200, 0.3) transparent;
}

.category-filter-strip::-webkit-scrollbar {
  height: 4px;
}

.category-filter-strip::-webkit-scrollbar-thumb {
  background: rgba(72, 196, 200, 0.3);
  border-radius: 4px;
}

.category-filter-pill {
  padding: 0.5rem 1.05rem;
  background: var(--card-bg);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  color: var(--text-secondary);
  font-size: clamp(0.825rem, 0.95vw, 0.88rem);
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
  flex-shrink: 0;
  transition: all var(--transition-fast);
}

.category-filter-pill:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-white);
  border-color: rgba(255, 255, 255, 0.2);
}

.category-filter-pill.active {
  background: var(--primary-teal);
  color: #FFFFFF;
  border-color: var(--primary-teal);
  font-weight: 700;
  box-shadow: 0 2px 14px var(--teal-glow);
}

/* Pricing Button Group */
.pricing-btn-group {
  display: flex;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 3px;
  gap: 2px;
}

.pricing-filter-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.pricing-filter-btn.active {
  background: var(--teal-subtle);
  color: var(--primary-teal);
}

.pricing-filter-btn:hover:not(.active) {
  color: var(--text-white);
}

/* ==========================================================================
   Tool Quick View Modal
   ========================================================================== */
.tool-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.45);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 2500;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.tool-modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.tool-modal-dialog {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -46%) scale(0.96);
  width: min(740px, calc(100vw - 2rem));
  max-height: calc(100vh - 3rem);
  max-height: calc(100dvh - 3rem);
  background: #FFFFFF;
  border: 1px solid var(--teal-border);
  border-radius: var(--radius-xl);
  box-shadow: 0 25px 50px -12px rgba(15, 23, 42, 0.2), var(--shadow-teal);
  z-index: 2501;
  opacity: 0;
  pointer-events: none;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.tool-modal-dialog.active {
  opacity: 1;
  pointer-events: auto;
  transform: translate(-50%, -50%) scale(1);
}

.tool-modal-content {
  display: flex;
  flex-direction: column;
  flex: 1 1 auto;
  min-height: 0;
  max-height: 100%;
  height: 100%;
  overflow: hidden;
}

.tool-modal-close {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  z-index: 10;
}

.tool-modal-close:hover {
  background: rgba(239, 68, 68, 0.15);
  color: var(--danger);
  border-color: var(--danger);
}

.modal-tool-header {
  padding: 1.75rem 2rem 1.25rem 2rem;
  border-bottom: 1px solid var(--border-subtle);
  background: var(--bg-main);
  flex-shrink: 0;
}

.modal-tool-body {
  padding: 1.5rem 2rem;
  overflow-y: auto;
  overflow-x: hidden;
  flex: 1 1 auto;
  min-height: 0;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: contain;
}

.modal-tool-body::-webkit-scrollbar {
  width: 6px;
}

.modal-tool-body::-webkit-scrollbar-track {
  background: rgba(0, 0, 0, 0.3);
}

.modal-tool-body::-webkit-scrollbar-thumb {
  background: rgba(72, 196, 200, 0.35);
  border-radius: 999px;
}

.modal-tool-body::-webkit-scrollbar-thumb:hover {
  background: var(--primary-teal);
}

.modal-section-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: 0.4rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.modal-text {
  font-size: 0.925rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.modal-features-list {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  list-style: none;
  font-size: 0.875rem;
  color: var(--text-primary);
}

.modal-features-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
}

.modal-tool-footer {
  padding: 1.25rem 2rem;
  border-top: 1px solid var(--border-subtle);
  background: var(--bg-main);
  display: flex;
  align-items: center;
  gap: 0.85rem;
  flex-wrap: wrap;
  flex-shrink: 0;
}

@media (max-width: 600px) {
  .modal-tool-header, .modal-tool-body, .modal-tool-footer {
    padding-left: 1.25rem;
    padding-right: 1.25rem;
  }
}

/* ==========================================================================
   WhatsApp Tool Contact Modal
   ========================================================================== */
.weber-contact-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.45);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 2600;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.weber-contact-modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.weber-contact-modal-dialog {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -46%) scale(0.96);
  width: min(480px, calc(100vw - 2rem));
  background: #FFFFFF;
  border: 1px solid var(--teal-border);
  border-radius: var(--radius-xl);
  box-shadow: 0 25px 50px -12px rgba(15, 23, 42, 0.2), var(--shadow-teal);
  z-index: 2601;
  opacity: 0;
  pointer-events: none;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.weber-contact-modal-dialog.active {
  opacity: 1;
  pointer-events: auto;
  transform: translate(-50%, -50%) scale(1);
}

.weber-contact-modal-close {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  z-index: 10;
}

.weber-contact-modal-close:hover {
  background: rgba(239, 68, 68, 0.15);
  color: var(--danger);
  border-color: var(--danger);
}

.weber-contact-modal-header {
  padding: 1.75rem 1.75rem 1.25rem 1.75rem;
  border-bottom: 1px solid var(--border-subtle);
  background: var(--bg-main);
}

.weber-contact-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.25rem 0.65rem;
  background: rgba(72, 196, 200, 0.1);
  border: 1px solid var(--teal-border);
  border-radius: var(--radius-full);
  color: var(--primary-teal);
  font-size: 0.75rem;
  font-weight: 700;
  margin-bottom: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.weber-contact-title {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--text-white);
  margin-bottom: 0.35rem;
}

.weber-contact-subtitle {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.weber-contact-modal-body {
  padding: 1.5rem 1.75rem;
}

.weber-whatsapp-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: var(--bg-main);
  border: 1px solid var(--teal-border);
  border-radius: var(--radius-lg);
  padding: 1rem 1.25rem;
  margin-top: 1rem;
}

.weber-whatsapp-icon {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: rgba(72, 196, 200, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-teal);
  flex-shrink: 0;
}

.weber-contact-modal-footer {
  padding: 1.25rem 1.75rem 1.75rem 1.75rem;
  background: var(--bg-main);
  border-top: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

@media (max-width: 480px) {
  .tool-card-actions {
    flex-wrap: wrap;
  }
  .tool-card-actions .btn {
    min-width: 100%;
  }
}

/* ==========================================================================
   Services Page & Service Cards Architecture
   ========================================================================== */

.filter-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  width: 100%;
}

@media (max-width: 600px) {
  .filter-row {
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 0.5rem;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
  }
  .filter-row::-webkit-scrollbar {
    height: 4px;
  }
  .filter-row::-webkit-scrollbar-thumb {
    background: rgba(13, 148, 136, 0.2);
    border-radius: 4px;
  }
}

.services-stack {
  display: flex;
  flex-direction: column;
  gap: clamp(2.25rem, 4.5vw, 3.5rem);
  width: 100%;
}

.service-card {
  padding: clamp(1.25rem, 3vw, 2.5rem);
  background: #FFFFFF;
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
  position: relative;
  overflow: hidden;
  width: 100%;
}

.service-card:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-lg), 0 0 20px rgba(13, 148, 136, 0.08);
}

.service-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(1.5rem, 3.5vw, 2.75rem);
  align-items: center;
  width: 100%;
}

@media (max-width: 900px) {
  .service-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  .service-grid.reverse-on-desktop .service-media-wrap {
    order: -1;
  }
}

.service-media-wrap {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-sm);
  background: var(--bg-tertiary);
  width: 100%;
}

.service-media-img {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  display: block;
  transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.service-card:hover .service-media-img {
  transform: scale(1.025);
}

.service-badge-overlay {
  position: absolute;
  bottom: clamp(0.5rem, 1.2vw, 0.75rem);
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  padding: 0.28rem clamp(0.55rem, 1vw, 0.75rem);
  border-radius: var(--radius-full);
  border: 1px solid var(--border-subtle);
  font-size: clamp(0.7rem, 0.85vw, 0.78rem);
  font-weight: 700;
  color: var(--primary-teal);
  box-shadow: var(--shadow-sm);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  max-width: calc(100% - 1rem);
  white-space: nowrap;
}

.service-badge-overlay.badge-left {
  left: clamp(0.5rem, 1.2vw, 0.75rem);
}

.service-badge-overlay.badge-right {
  right: clamp(0.5rem, 1.2vw, 0.75rem);
}

.service-features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 180px), 1fr));
  gap: 0.65rem 1rem;
  margin-bottom: 1.5rem;
  font-size: clamp(0.825rem, 0.95vw, 0.875rem);
  color: var(--text-primary);
}

@media (max-width: 480px) {
  .service-features-grid {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }
}

.service-feature-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  line-height: 1.4;
}

.service-feature-icon {
  color: var(--primary-teal);
  font-weight: 700;
  flex-shrink: 0;
}

.service-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  width: 100%;
}

@media (max-width: 480px) {
  .service-actions {
    flex-direction: column;
    align-items: stretch;
    gap: 0.65rem;
  }
  .service-actions .btn {
    width: 100%;
    justify-content: center;
  }
}

.guarantees-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  width: 100%;
}

@media (max-width: 900px) {
  .guarantees-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .guarantees-grid {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   Global Floating WhatsApp Button
   ========================================================================== */

.floating-whatsapp-wrap {
  position: fixed;
  bottom: clamp(1.25rem, 3vw, 2rem);
  right: clamp(1.25rem, 3vw, 2rem);
  z-index: 990;
  display: flex;
  align-items: center;
  pointer-events: none;
}

.floating-whatsapp-btn {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: #25D366;
  color: #FFFFFF;
  box-shadow: 0 8px 24px -2px rgba(37, 211, 102, 0.45), 0 4px 12px rgba(0, 0, 0, 0.15);
  text-decoration: none;
  pointer-events: auto;
  cursor: pointer;
  transition: transform 0.28s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.28s cubic-bezier(0.16, 1, 0.3, 1), filter 0.2s ease;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

.floating-whatsapp-btn:hover {
  transform: translateY(-4px) scale(1.06);
  box-shadow: 0 14px 30px -4px rgba(37, 211, 102, 0.55), 0 6px 16px rgba(0, 0, 0, 0.2);
  filter: brightness(1.05);
}

.floating-whatsapp-btn:active {
  transform: translateY(-1px) scale(0.96);
  box-shadow: 0 6px 16px rgba(37, 211, 102, 0.35);
}

.floating-whatsapp-icon {
  width: 34px;
  height: 34px;
  display: block;
  transition: transform 0.25s ease;
}

.floating-whatsapp-btn:hover .floating-whatsapp-icon {
  transform: scale(1.08);
}

/* Subtle ambient pulse wave */
.floating-whatsapp-pulse {
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  background: rgba(37, 211, 102, 0.35);
  z-index: -1;
  animation: waPulse 2.8s cubic-bezier(0.25, 1, 0.5, 1) infinite;
  pointer-events: none;
}

@keyframes waPulse {
  0% {
    transform: scale(0.92);
    opacity: 0.75;
  }
  70% {
    transform: scale(1.38);
    opacity: 0;
  }
  100% {
    transform: scale(1.45);
    opacity: 0;
  }
}

/* Tooltip on Desktop */
.floating-whatsapp-tooltip {
  position: absolute;
  right: calc(100% + 12px);
  top: 50%;
  transform: translateY(-50%) translateX(6px);
  background: rgba(15, 23, 42, 0.92);
  backdrop-filter: blur(8px);
  color: #FFFFFF;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  padding: 0.45rem 0.85rem;
  border-radius: 999px;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.12);
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.22s ease, transform 0.22s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.22s;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.floating-whatsapp-status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #22C55E;
  display: inline-block;
  box-shadow: 0 0 6px #22C55E;
}

.floating-whatsapp-btn:hover .floating-whatsapp-tooltip {
  opacity: 1;
  visibility: visible;
  transform: translateY(-50%) translateX(0);
}

/* Mobile & Tablet Optimizations */
@media (max-width: 768px) {
  .floating-whatsapp-wrap {
    bottom: 1.15rem;
    right: 1.15rem;
  }

  .floating-whatsapp-btn {
    width: 52px;
    height: 52px;
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.4);
  }

  .floating-whatsapp-icon {
    width: 30px;
    height: 30px;
  }

  .floating-whatsapp-tooltip {
    display: none;
  }
}