/* ==========================================================================
   AUTHENTICATOR LANDING PAGE & BLOG — LUXURY CYBERSECURITY DESIGN SYSTEM
   ========================================================================== */

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

/* --- CSS Variables & Design Tokens --- */
:root {
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-heading: 'Outfit', var(--font-sans);
  --font-mono: 'JetBrains Mono', monospace;

  /* Deep Luxury Dark Palette */
  --bg-primary: #060810;
  --bg-secondary: #0c1021;
  --bg-surface: #121830;
  --bg-surface-elevated: #1a2244;
  --bg-glass: rgba(18, 24, 48, 0.75);
  --bg-glass-card: rgba(22, 30, 60, 0.65);

  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-glass: rgba(255, 255, 255, 0.12);
  --border-active: rgba(99, 102, 241, 0.55);

  --primary: #6366f1;
  --primary-hover: #4f46e5;
  --primary-light: #818cf8;
  --primary-glow: rgba(99, 102, 241, 0.4);

  --accent-vault: #10b981;
  --accent-vault-glow: rgba(16, 185, 129, 0.35);
  --accent-warn: #f59e0b;
  --accent-purple: #a855f7;
  --accent-cyan: #06b6d4;

  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dark: #64748b;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 9999px;

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.4);
  --shadow-card: 0 10px 30px -5px rgba(0, 0, 0, 0.6), 0 0 1px 1px var(--border-glass);
  --shadow-glow: 0 0 45px -5px var(--primary-glow);
  --shadow-popup: 0 25px 60px -15px rgba(0, 0, 0, 0.85), 0 0 0 1px rgba(255, 255, 255, 0.12);
}

/* --- Base & Reset --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  color-scheme: dark;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* --- Background Ambient Glow Effects --- */
.ambient-glow {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.glow-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(130px);
  opacity: 0.28;
  will-change: transform;
}

.glow-orb-1 {
  top: -10%;
  left: 20%;
  width: 650px;
  height: 650px;
  background: radial-gradient(circle, #6366f1 0%, rgba(99,102,241,0) 70%);
  animation: floatOrb 18s ease-in-out infinite alternate;
}

.glow-orb-2 {
  top: 40%;
  right: -5%;
  width: 550px;
  height: 550px;
  background: radial-gradient(circle, #10b981 0%, rgba(16,185,129,0) 70%);
  animation: floatOrb 22s ease-in-out infinite alternate-reverse;
}

.glow-orb-3 {
  bottom: 10%;
  left: 5%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, #a855f7 0%, rgba(168,85,247,0) 70%);
  animation: floatOrb 25s ease-in-out infinite alternate;
}

@keyframes floatOrb {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(45px, 35px) scale(1.08); }
  100% { transform: translate(-35px, -25px) scale(0.94); }
}

/* --- Grid Pattern Overlay --- */
.grid-overlay {
  position: fixed;
  inset: 0;
  background-image: 
    linear-gradient(to right, rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: 1;
}

/* --- Container & Layout --- */
.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 2;
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.15;
  color: var(--text-main);
  letter-spacing: -0.02em;
}

.text-gradient {
  background: linear-gradient(135deg, #ffffff 25%, #818cf8 65%, #c084fc 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.text-gradient-vault {
  background: linear-gradient(135deg, #34d399 20%, #60a5fa 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* --- Navigation Header --- */
.header {
  position: sticky;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  background: rgba(6, 8, 16, 0.82);
  border-bottom: 1px solid var(--border-subtle);
  transition: all 0.2s ease;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.logo-group {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.logo-icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  box-shadow: 0 0 25px rgba(99, 102, 241, 0.45);
  display: block;
}

.logo-text {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: -0.01em;
}

.logo-badge {
  font-size: 0.6875rem;
  font-weight: 700;
  padding: 3px 9px;
  background: rgba(99, 102, 241, 0.16);
  border: 1px solid rgba(99, 102, 241, 0.35);
  color: var(--primary-light);
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-link {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9375rem;
  font-weight: 500;
  transition: color 0.15s ease;
}

.nav-link:hover {
  color: var(--text-main);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* --- Production-Level Professional Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 13px 26px;
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  border-radius: var(--radius-md);
  text-decoration: none;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  border: none;
  outline: none;
  position: relative;
  overflow: hidden;
  user-select: none;
  -webkit-user-select: none;
}

.btn::after {
  content: '';
  position: absolute;
  top: 0;
  left: -120%;
  width: 60%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.24), transparent);
  transform: skewX(-25deg);
  pointer-events: none;
}

.btn:hover::after {
  left: 160%;
  transition: left 0.75s ease-in-out;
}

.btn:focus-visible {
  box-shadow: 0 0 0 3px var(--primary-glow), 0 0 0 1px #fff;
}

.btn:active {
  transform: translateY(1px) scale(0.985);
}

.btn-primary {
  background: linear-gradient(135deg, #6366f1 0%, #4f46e5 50%, #4338ca 100%);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.18);
  box-shadow: 
    0 4px 18px -2px rgba(99, 102, 241, 0.55),
    0 1px 2px rgba(0, 0, 0, 0.3),
    inset 0 1px 1px 0 rgba(255, 255, 255, 0.35);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.25);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #7175f5 0%, #5b53ea 50%, #4a3fd8 100%);
  transform: translateY(-2px);
  box-shadow: 
    0 10px 30px -2px rgba(99, 102, 241, 0.7),
    0 2px 6px rgba(0, 0, 0, 0.4),
    inset 0 1px 1px 0 rgba(255, 255, 255, 0.45);
}

.btn-secondary {
  background: linear-gradient(180deg, rgba(32, 42, 78, 0.85) 0%, rgba(18, 25, 52, 0.85) 100%);
  border: 1px solid rgba(255, 255, 255, 0.14);
  color: #f1f5f9;
  box-shadow: 
    0 4px 15px rgba(0, 0, 0, 0.4),
    inset 0 1px 0 rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(12px);
}

.btn-secondary:hover {
  background: linear-gradient(180deg, rgba(42, 56, 102, 0.95) 0%, rgba(26, 36, 74, 0.95) 100%);
  border-color: rgba(99, 102, 241, 0.5);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 
    0 8px 25px rgba(0, 0, 0, 0.6),
    0 0 20px rgba(99, 102, 241, 0.25),
    inset 0 1px 0 rgba(255, 255, 255, 0.25);
}

.btn-lg {
  padding: 16px 36px;
  font-size: 1.0625rem;
  border-radius: 16px;
  letter-spacing: 0.015em;
}

/* --- Hero Section --- */
.hero {
  padding: 90px 0 80px;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 60px;
  align-items: center;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.28);
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: 600;
  color: #34d399;
  margin-bottom: 24px;
}

.hero-tag-pulse {
  width: 8px;
  height: 8px;
  background: #34d399;
  border-radius: 50%;
  box-shadow: 0 0 10px #34d399;
  animation: pulseGreen 2s infinite;
}

@keyframes pulseGreen {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 8px rgba(52, 211, 153, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(52, 211, 153, 0); }
}

.hero-title {
  font-size: 3.75rem;
  font-weight: 800;
  line-height: 1.08;
  margin-bottom: 24px;
  letter-spacing: -0.03em;
}

.hero-desc {
  font-size: 1.1875rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 36px;
  max-width: 580px;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 36px;
}

.supported-browsers {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 0.8125rem;
  color: var(--text-dark);
}

.browser-icons {
  display: flex;
  align-items: center;
  gap: 12px;
}

.browser-badge {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--text-muted);
  font-weight: 500;
}

/* --- Interactive Extension Mockup / Simulator --- */
.hero-mockup-wrapper {
  position: relative;
  display: flex;
  justify-content: center;
  perspective: 1000px;
}

.mockup-glow {
  position: absolute;
  inset: -20px;
  background: radial-gradient(circle at center, rgba(99, 102, 241, 0.4) 0%, transparent 70%);
  filter: blur(45px);
  z-index: 0;
}

.extension-popup-frame {
  position: relative;
  z-index: 1;
  width: 380px;
  background: var(--bg-surface);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-popup);
  overflow: hidden;
  backdrop-filter: blur(22px);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.extension-popup-frame:hover {
  transform: translateY(-4px);
  box-shadow: 0 30px 70px -10px rgba(0, 0, 0, 0.9), 0 0 35px rgba(99, 102, 241, 0.3);
}

.popup-top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  background: rgba(6, 8, 16, 0.7);
  border-bottom: 1px solid var(--border-subtle);
}

.popup-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--text-main);
}

.popup-controls {
  display: flex;
  align-items: center;
  gap: 8px;
}

.popup-btn-icon {
  background: transparent;
  border: none;
  color: var(--text-muted);
  padding: 6px;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.popup-btn-icon:hover {
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.08);
}

.popup-search-bar {
  padding: 10px 16px;
  background: rgba(6, 8, 16, 0.35);
  border-bottom: 1px solid var(--border-subtle);
}

.popup-search-input {
  width: 100%;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 7px 12px;
  color: var(--text-main);
  font-size: 0.8125rem;
  outline: none;
}

.popup-search-input::placeholder {
  color: var(--text-dark);
}

.popup-accounts-list {
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 380px;
  overflow-y: auto;
}

.popup-account-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 14px;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  transition: all 0.15s ease;
  position: relative;
}

.popup-account-card:hover {
  border-color: rgba(99, 102, 241, 0.45);
  background: rgba(32, 40, 72, 0.85);
}

.account-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.account-avatar {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.875rem;
  color: white;
  flex-shrink: 0;
}

.account-meta {
  display: flex;
  flex-direction: column;
}

.account-issuer {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.account-label {
  font-size: 0.6875rem;
  color: var(--text-dark);
  margin-bottom: 2px;
}

.account-code {
  font-family: var(--font-mono);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: 0.08em;
  line-height: 1.1;
  transition: color 0.2s ease;
}

.account-code.expiring {
  color: var(--accent-warn);
}

.account-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

.countdown-container {
  position: relative;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.countdown-svg {
  transform: rotate(-90deg);
  width: 32px;
  height: 32px;
}

.countdown-bg {
  fill: none;
  stroke: rgba(255, 255, 255, 0.08);
  stroke-width: 3;
}

.countdown-progress {
  fill: none;
  stroke: var(--primary);
  stroke-width: 3;
  stroke-linecap: round;
  stroke-dasharray: 87.96;
  stroke-dashoffset: 0;
  transition: stroke-dashoffset 0.25s linear, stroke 0.25s ease;
}

.countdown-seconds {
  position: absolute;
  font-size: 0.6875rem;
  font-weight: 700;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
}

.popup-copy-btn {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  width: 32px;
  height: 32px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.15s ease;
}

.popup-copy-btn:hover {
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.2);
}

.popup-copy-btn.copied {
  background: rgba(16, 185, 129, 0.25);
  border-color: rgba(16, 185, 129, 0.6);
  color: #34d399;
}

.popup-locked-overlay {
  position: absolute;
  inset: 52px 0 0 0;
  background: rgba(12, 16, 33, 0.96);
  backdrop-filter: blur(14px);
  z-index: 10;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 24px;
  text-align: center;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.popup-locked-overlay.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.lock-shield-icon {
  width: 52px;
  height: 52px;
  border-radius: 16px;
  background: rgba(99, 102, 241, 0.14);
  border: 1px solid rgba(99, 102, 241, 0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-light);
  margin-bottom: 16px;
}

.lock-title {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.lock-subtitle {
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.lock-input {
  width: 100%;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-glass);
  border-radius: 10px;
  padding: 10px 14px;
  color: white;
  font-size: 0.875rem;
  text-align: center;
  letter-spacing: 0.1em;
  margin-bottom: 12px;
  outline: none;
}

.lock-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px var(--primary-glow);
}

/* --- Section Headers --- */
.section {
  padding: 110px 0;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 64px;
}

.section-tag {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--primary-light);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 14px;
}

.section-title {
  font-size: 2.75rem;
  font-weight: 800;
  margin-bottom: 18px;
  letter-spacing: -0.02em;
}

.section-desc {
  font-size: 1.125rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* --- Security Architecture Grid --- */
.security-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}

.security-card {
  background: var(--bg-glass-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: all 0.25s ease;
  backdrop-filter: blur(12px);
  position: relative;
  overflow: hidden;
}

.security-card:hover {
  border-color: var(--border-active);
  transform: translateY(-4px);
  box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.6), 0 0 25px rgba(99, 102, 241, 0.2);
}

.security-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 22px;
  background: rgba(99, 102, 241, 0.14);
  border: 1px solid rgba(99, 102, 241, 0.28);
  color: var(--primary-light);
}

.security-icon.vault {
  background: rgba(16, 185, 129, 0.14);
  border-color: rgba(16, 185, 129, 0.28);
  color: #34d399;
}

.security-icon.purple {
  background: rgba(168, 85, 247, 0.14);
  border-color: rgba(168, 85, 247, 0.28);
  color: #c084fc;
}

.security-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.security-card p {
  color: var(--text-muted);
  font-size: 0.9375rem;
  line-height: 1.6;
}

/* --- Interactive Storage Inspector --- */
.storage-inspector-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.inspector-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  background: rgba(6, 8, 16, 0.85);
  border-bottom: 1px solid var(--border-subtle);
  flex-wrap: wrap;
  gap: 16px;
}

.inspector-title-group {
  display: flex;
  align-items: center;
  gap: 12px;
}

.terminal-dots {
  display: flex;
  gap: 6px;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.dot.red { background: #ef4444; }
.dot.yellow { background: #eab308; }
.dot.green { background: #22c55e; }

.inspector-tabs {
  display: flex;
  background: rgba(255, 255, 255, 0.05);
  padding: 4px;
  border-radius: var(--radius-sm);
  gap: 4px;
}

.inspector-tab {
  padding: 6px 14px;
  border-radius: 6px;
  font-size: 0.8125rem;
  font-weight: 600;
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.15s ease;
}

.inspector-tab.active {
  background: var(--primary);
  color: white;
}

.inspector-content {
  padding: 24px;
  background: #070912;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  line-height: 1.7;
  overflow-x: auto;
}

.code-key { color: #818cf8; }
.code-str { color: #34d399; }
.code-num { color: #f59e0b; }
.code-comment { color: #64748b; font-style: italic; }

/* --- Features Grid --- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.feature-box {
  display: flex;
  gap: 22px;
  padding: 32px;
  background: var(--bg-glass-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(12px);
  transition: all 0.2s ease;
}

.feature-box:hover {
  border-color: var(--border-active);
  transform: translateY(-3px);
}

.feature-icon-wrapper {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(99,102,241,0.22) 0%, rgba(168,85,247,0.22) 100%);
  border: 1px solid rgba(99, 102, 241, 0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-light);
  flex-shrink: 0;
}

.feature-text h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.feature-text p {
  color: var(--text-muted);
  font-size: 0.9375rem;
  line-height: 1.6;
}

/* --- Comparison Table --- */
.comparison-table-wrapper {
  background: var(--bg-surface);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.comparison-table th,
.comparison-table td {
  padding: 18px 24px;
  border-bottom: 1px solid var(--border-subtle);
}

.comparison-table th {
  background: rgba(6, 8, 16, 0.75);
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-main);
}

.comparison-table th.highlight-col {
  background: rgba(99, 102, 241, 0.16);
  color: var(--primary-light);
  border-bottom: 2px solid var(--primary);
}

.comparison-table td.highlight-col {
  background: rgba(99, 102, 241, 0.05);
  font-weight: 600;
  color: #34d399;
}

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

.check-icon {
  color: #34d399;
  font-weight: bold;
}

.cross-icon {
  color: #ef4444;
}

/* --- FAQ Accordion --- */
.faq-accordion {
  max-width: 840px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color 0.2s ease;
}

.faq-item.open {
  border-color: var(--border-active);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 26px;
  background: transparent;
  border: none;
  color: var(--text-main);
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
}

.faq-icon {
  width: 20px;
  height: 20px;
  transition: transform 0.25s ease;
  color: var(--text-muted);
}

.faq-item.open .faq-icon {
  transform: rotate(180deg);
  color: var(--primary-light);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
  padding: 0 26px;
  color: var(--text-muted);
  font-size: 0.9375rem;
  line-height: 1.65;
}

.faq-item.open .faq-answer {
  max-height: 400px;
  padding-bottom: 22px;
}

/* --- Call To Action Footer Banner --- */
.cta-banner {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.18) 0%, rgba(168, 85, 247, 0.18) 100%);
  border: 1px solid var(--border-glass);
  border-radius: 28px;
  padding: 64px 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.7);
  margin-bottom: 80px;
}

.cta-banner-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 450px;
  height: 450px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.45) 0%, transparent 70%);
  filter: blur(85px);
  pointer-events: none;
}

.cta-title {
  font-size: 2.75rem;
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.cta-desc {
  font-size: 1.125rem;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto 36px;
}

/* --- Footer --- */
.footer {
  border-top: 1px solid var(--border-subtle);
  padding: 60px 0 40px;
  background: rgba(4, 6, 12, 0.85);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand p {
  color: var(--text-dark);
  font-size: 0.875rem;
  margin-top: 12px;
  max-width: 320px;
}

.footer-col h4 {
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-main);
  margin-bottom: 18px;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-col a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.875rem;
  transition: color 0.15s ease;
}

.footer-col a:hover {
  color: var(--text-main);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 32px;
  border-top: 1px solid var(--border-subtle);
  font-size: 0.8125rem;
  color: var(--text-dark);
  flex-wrap: wrap;
  gap: 16px;
}

/* --- Responsive Breakpoints --- */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 48px;
  }
  .hero-desc {
    margin-left: auto;
    margin-right: auto;
  }
  .hero-cta-group {
    justify-content: center;
  }
  .supported-browsers {
    justify-content: center;
  }
  .security-grid {
    grid-template-columns: 1fr;
  }
  .features-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  .hero-title {
    font-size: 2.75rem;
  }
  .section-title {
    font-size: 2.125rem;
  }
  .cta-title {
    font-size: 2.125rem;
  }
  .cta-banner {
    padding: 40px 24px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .extension-popup-frame {
    width: 100%;
    max-width: 360px;
  }
}