/* ============================================================
   SignalSecureUSA — Modern Redesign Stylesheet
   ============================================================ */

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

:root {
  /* New Color System */
  --bg-base:        #0A0F1C;
  --bg-surface:     #141B2E;
  --bg-elevated:    #1E2A42;
  --bg-accent:      #0F1A2E;
  
  --border-subtle:  #2A3441;
  --border-medium:  #3A4553;
  --border-strong:  #4A5563;

  --primary:        #3B82F6;
  --primary-light:  #60A5FA;
  --primary-dark:   #1D4ED8;
  
  --accent:         #10B981;
  --accent-light:   #34D399;
  --warning:        #F59E0B;
  --error:          #EF4444;

  --text-primary:   #F8FAFC;
  --text-secondary: #CBD5E1;
  --text-tertiary:  #64748B;
  --text-muted:     #475569;

  /* Typography Scale */
  --font-display:   'Inter', system-ui, -apple-system, sans-serif;
  --font-body:      'Inter', system-ui, -apple-system, sans-serif;
  --font-mono:      'JetBrains Mono', 'Fira Code', monospace;

  /* Spacing Scale */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* Border Radius */
  --radius-xs: 0.125rem;
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
}

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

html { 
  scroll-behavior: smooth; 
  font-feature-settings: 'cv02', 'cv03', 'cv04', 'cv11';
}

body {
  font-family: var(--font-body);
  background: var(--bg-base);
  color: var(--text-primary);
  line-height: 1.6;
  font-size: 16px;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { 
  color: var(--primary-light); 
  text-decoration: none; 
  transition: color 0.2s ease;
}
a:hover { color: var(--primary); }

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

/* ── Utility Classes ──────────────────────────────────────── */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--primary);
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid rgba(59, 130, 246, 0.2);
  border-radius: var(--radius-full);
  padding: var(--space-2) var(--space-4);
  margin-bottom: var(--space-6);
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: var(--space-6);
}

.section-subtitle {
  font-size: 1.125rem;
  font-weight: 400;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 42rem;
}

.text-center { text-align: center; }
.text-center .section-subtitle { margin: 0 auto; }
.highlight { color: var(--accent); font-weight: 600; }

/* ── Button System ────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-lg);
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.btn-primary { 
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--primary-light), var(--primary));
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}

.btn-outline { 
  background: transparent; 
  color: var(--primary-light); 
  border: 1.5px solid var(--primary);
  backdrop-filter: blur(10px);
}

.btn-outline:hover {
  background: rgba(59, 130, 246, 0.1);
  border-color: var(--primary-light);
}

/* ============================================================
   HEADER
   ============================================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(10, 15, 28, 0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
  padding: var(--space-4) 0;
  transition: all 0.3s ease;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
}

.brand-logo { 
  width: 2.5rem; 
  height: 2.5rem; 
  flex-shrink: 0; 
}

.brand-name {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.brand-name span { 
  color: var(--primary-light); 
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  list-style: none;
}

.nav-link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

/* ============================================================
   HERO SECTION
   ============================================================ */
.hero {
  padding: calc(var(--space-24) + var(--space-8)) 0 var(--space-24);
  position: relative;
  overflow: hidden;
  background: 
    radial-gradient(ellipse 80% 50% at 50% 0%, rgba(59, 130, 246, 0.15), transparent),
    radial-gradient(ellipse 60% 50% at 80% 50%, rgba(16, 185, 129, 0.1), transparent);
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: 
    linear-gradient(45deg, transparent 30%, rgba(59, 130, 246, 0.05) 50%, transparent 70%),
    linear-gradient(-45deg, transparent 30%, rgba(16, 185, 129, 0.05) 50%, transparent 70%);
  pointer-events: none;
}

.hero .container {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: var(--space-16);
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-content {
  max-width: 36rem;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent);
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.2);
  border-radius: var(--radius-full);
  padding: var(--space-2) var(--space-4);
  margin-bottom: var(--space-8);
}

.eyebrow-dot {
  width: 0.5rem;
  height: 0.5rem;
  background: var(--accent);
  border-radius: var(--radius-full);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-6);
  background: linear-gradient(135deg, var(--text-primary), var(--text-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: 1.125rem;
  font-weight: 400;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-10);
}

.hero-actions { 
  display: flex; 
  gap: var(--space-4); 
  flex-wrap: wrap; 
}

/* Enhanced Chat Mockup */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
}

.hero-image {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  object-fit: cover;
  width: 100%;
  aspect-ratio: 4/3;
}

/* ============================================================
   TRUST BAR
   ============================================================ */
.trust-bar {
  padding: var(--space-12) 0;
  background: var(--bg-accent);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.trust-bar .container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-8);
  align-items: center;
}

.trust-item { 
  display: flex; 
  align-items: center; 
  gap: var(--space-4); 
}

.trust-icon {
  width: 3rem;
  height: 3rem;
  flex-shrink: 0;
  border-radius: var(--radius-lg);
  object-fit: cover;
  display: block;
}

.trust-info {
  flex: 1;
}

.trust-label { 
  font-size: 0.75rem; 
  color: var(--text-tertiary); 
  font-weight: 500; 
  margin-bottom: var(--space-1);
}

.trust-value { 
  font-size: 0.875rem; 
  color: var(--text-primary); 
  font-weight: 600; 
}

/* ============================================================
   FEATURES SECTION
   ============================================================ */
.features { 
  padding: var(--space-24) 0; 
}

.features-header { 
  margin-bottom: var(--space-16); 
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-8);
}

.feature-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: var(--space-10);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

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

.feature-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-medium);
  box-shadow: var(--shadow-xl);
}

.feature-icon-wrap {
  width: 4rem;
  height: 4rem;
  background: rgba(59, 130, 246, 0.1);
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-6);
}

.feature-icon { 
  width: 1.5rem; 
  height: 1.5rem; 
  color: var(--primary); 
}

.feature-title { 
  font-size: 1.125rem; 
  font-weight: 700; 
  color: var(--text-primary); 
  margin-bottom: var(--space-3); 
}

.feature-desc { 
  font-size: 0.875rem; 
  color: var(--text-secondary); 
  line-height: 1.7; 
}

/* ============================================================
   ENCRYPTION SECTION
   ============================================================ */
.encryption {
  padding: var(--space-24) 0;
  background: var(--bg-accent);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.encryption .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-20);
  align-items: center;
}

.enc-content {
  max-width: 32rem;
}

.enc-diagram {
  background: var(--bg-elevated);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-xl);
  padding: var(--space-10);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  justify-content: center;
}

.encryption-image {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  object-fit: cover;
  width: 100%;
  aspect-ratio: 4/3;
  display: block;
}

.enc-row {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.enc-row:last-child { margin-bottom: 0; }

.enc-node {
  flex: 1;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.enc-node-label {
  font-size: 0.625rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: var(--space-1);
}

.enc-arrow { 
  color: var(--primary); 
  flex-shrink: 0; 
}

.enc-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.2);
  border-radius: var(--radius-full);
  padding: var(--space-2) var(--space-4);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent);
  margin-top: var(--space-6);
}

.enc-list {
  list-style: none;
  margin-top: var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.enc-list li { 
  display: flex; 
  gap: var(--space-4); 
  align-items: flex-start; 
}

.enc-check {
  width: 1.5rem;
  height: 1.5rem;
  background: rgba(16, 185, 129, 0.1);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: var(--space-1);
}

.enc-list-text { 
  font-size: 0.875rem; 
  color: var(--text-secondary); 
  line-height: 1.7; 
}

.enc-list-text strong { 
  color: var(--text-primary); 
  font-weight: 600; 
}

/* ============================================================
   HOW IT WORKS SECTION
   ============================================================ */
.how-it-works { 
  padding: var(--space-24) 0; 
}

.how-it-works-header { 
  text-align: center; 
  margin-bottom: var(--space-20); 
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-12);
  position: relative;
}

.step-card { 
  text-align: center; 
  position: relative; 
}

.step-image {
  width: 4rem;
  height: 4rem;
  margin: 0 auto var(--space-4);
  border-radius: var(--radius-lg);
  object-fit: cover;
  display: block;
}

.step-number {
  width: 5rem;
  height: 5rem;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-8);
  font-size: 1.5rem;
  font-weight: 800;
  color: white;
  position: relative;
  z-index: 1;
  box-shadow: var(--shadow-lg);
}

.step-title { 
  font-size: 1rem; 
  font-weight: 700; 
  color: var(--text-primary); 
  margin-bottom: var(--space-3); 
}

.step-desc { 
  font-size: 0.875rem; 
  color: var(--text-secondary); 
  line-height: 1.7; 
}

/* ============================================================
   PLANS SECTION
   ============================================================ */
.plans {
  padding: var(--space-24) 0;
  background: var(--bg-accent);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.plans-header { 
  text-align: center; 
  margin-bottom: var(--space-16); 
}

.plans-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-8);
}

.plan-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: var(--space-10);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  transition: all 0.3s ease;
}

.plan-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-medium);
  box-shadow: var(--shadow-xl);
}

.plan-card.featured {
  border-color: var(--primary);
  background: linear-gradient(180deg, rgba(59, 130, 246, 0.05) 0%, var(--bg-surface) 100%);
}

.plan-card.featured::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
}

.plan-badge {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  font-size: 0.625rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
}

.plan-icon {
  width: 3rem;
  height: 3rem;
  border-radius: var(--radius-lg);
  background: rgba(59, 130, 246, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-6);
}

.plan-name { 
  font-size: 1.25rem; 
  font-weight: 700; 
  color: var(--text-primary); 
  margin-bottom: var(--space-2); 
}

.plan-tagline { 
  font-size: 0.875rem; 
  color: var(--text-secondary); 
  margin-bottom: var(--space-6); 
  line-height: 1.6; 
}

.plan-price { 
  display: flex; 
  align-items: baseline; 
  gap: var(--space-1); 
  margin-bottom: var(--space-8); 
}

.plan-amount { 
  font-size: 2.5rem; 
  font-weight: 800; 
  color: var(--text-primary); 
}

.plan-period { 
  font-size: 0.875rem; 
  color: var(--text-tertiary); 
}

.plan-divider { 
  border: none; 
  border-top: 1px solid var(--border-subtle); 
  margin-bottom: var(--space-6); 
}

.plan-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  flex: 1;
  margin-bottom: var(--space-8);
}

.plan-features li {
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.check-icon { 
  width: 1rem; 
  height: 1rem; 
  color: var(--accent); 
  flex-shrink: 0; 
  margin-top: var(--space-1); 
}

.plan-cta {
  width: 100%;
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  font-size: 0.875rem;
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  display: block;
  border: none;
  background: var(--bg-elevated);
  color: var(--text-primary);
  border: 1.5px solid var(--border-medium);
  transition: all 0.2s ease;
}

.plan-cta:hover {
  background: var(--bg-surface);
  border-color: var(--border-strong);
}

.plan-cta-free {
  background: var(--bg-surface);
  color: var(--accent);
  border-color: var(--accent);
}

.plan-cta-free:hover {
  background: rgba(16, 185, 129, 0.1);
}

.plan-cta-trial {
  background: var(--bg-elevated);
  color: var(--primary);
  border-color: var(--primary);
}

.plan-cta-trial:hover {
  background: rgba(59, 130, 246, 0.1);
}

.plan-cta-featured {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  border: 1.5px solid transparent;
}

.plan-cta-featured:hover {
  background: linear-gradient(135deg, var(--primary-light), var(--primary));
}

.plan-cta-enterprise {
  background: var(--bg-elevated);
  color: var(--text-primary);
  border-color: var(--border-strong);
}

.plan-cta-enterprise:hover {
  background: var(--bg-surface);
  border-color: var(--primary);
  color: var(--primary);
}

/* ============================================================
   TESTIMONIALS SECTION
   ============================================================ */
.testimonials { 
  padding: var(--space-24) 0; 
}

.testimonials-header { 
  text-align: center; 
  margin-bottom: var(--space-16); 
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-8);
}

.testimonial-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: var(--space-10);
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  transition: all 0.3s ease;
}

.testimonial-card:hover {
  transform: translateY(-2px);
  border-color: var(--border-medium);
  box-shadow: var(--shadow-lg);
}

.testimonial-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-4);
  display: block;
}

.testimonial-stars { 
  display: flex; 
  gap: var(--space-1); 
}

.star-icon { 
  width: 1rem; 
  height: 1rem; 
  color: var(--warning); 
}

.testimonial-text { 
  font-size: 0.875rem; 
  color: var(--text-secondary); 
  line-height: 1.7; 
  flex: 1; 
}

.testimonial-author { 
  display: flex; 
  align-items: center; 
  gap: var(--space-4); 
}

.author-avatar {
  width: 3rem;
  height: 3rem;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--primary), var(--accent));
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.875rem;
  font-weight: 700;
  color: white;
}

.author-info {
  flex: 1;
}

.author-name { 
  font-size: 0.875rem; 
  font-weight: 700; 
  color: var(--text-primary); 
  margin-bottom: var(--space-1);
}

.author-role { 
  font-size: 0.75rem; 
  color: var(--text-tertiary); 
}

/* ============================================================
   STATISTICS SECTION
   ============================================================ */
.stats {
  padding: var(--space-20) 0;
  background: var(--bg-accent);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.stats .container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-8);
}

.stat-item {
  text-align: center;
  padding: var(--space-8);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  transition: all 0.3s ease;
}

.stat-item:hover {
  transform: translateY(-2px);
  border-color: var(--border-medium);
  box-shadow: var(--shadow-lg);
}

.stat-number {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  color: var(--primary);
  line-height: 1;
  margin-bottom: var(--space-2);
}

.stat-label { 
  font-size: 0.875rem; 
  color: var(--text-secondary); 
  font-weight: 500; 
}

/* ============================================================
   FAQ SECTION
   ============================================================ */
.faq { 
  padding: var(--space-24) 0; 
}

.faq-header { 
  text-align: center; 
  margin-bottom: var(--space-16); 
}

.faq-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: var(--space-6);
  max-width: 60rem;
  margin: 0 auto;
}

.faq-item {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  transition: all 0.3s ease;
}

.faq-item:hover {
  border-color: var(--border-medium);
  box-shadow: var(--shadow-md);
}

.faq-q {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-3);
  display: flex;
  gap: var(--space-4);
  align-items: flex-start;
}

.faq-q-mark {
  width: 1.5rem;
  height: 1.5rem;
  background: rgba(59, 130, 246, 0.1);
  border-radius: var(--radius-full);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 800;
  color: var(--primary);
  margin-top: var(--space-1);
}

.faq-a { 
  font-size: 0.875rem; 
  color: var(--text-secondary); 
  line-height: 1.7; 
  padding-left: calc(1.5rem + var(--space-4)); 
}

/* ============================================================
   CONTACTS SECTION
   ============================================================ */
.contacts {
  padding: var(--space-24) 0;
  background: var(--bg-accent);
  border-top: 1px solid var(--border-subtle);
}

.contacts-header { 
  text-align: center; 
  margin-bottom: var(--space-16); 
}

.contacts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-8);
  max-width: 50rem;
  margin: 0 auto;
}

.contact-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: var(--space-10);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
  transition: all 0.3s ease;
}

.contact-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-medium);
  box-shadow: var(--shadow-xl);
}

.contact-icon-wrap {
  width: 4rem;
  height: 4rem;
  background: rgba(59, 130, 246, 0.1);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
}

.contact-icon { 
  width: 1.5rem; 
  height: 1.5rem; 
  color: var(--primary); 
}

.contact-type { 
  font-size: 0.75rem; 
  font-weight: 700; 
  letter-spacing: 0.05em; 
  text-transform: uppercase; 
  color: var(--text-tertiary); 
}

.contact-value { 
  font-size: 1rem; 
  font-weight: 600; 
  color: var(--text-primary); 
  line-height: 1.5; 
}

.contact-value a { 
  color: var(--text-primary); 
  text-decoration: none; 
}

.contact-value a:hover { 
  color: var(--primary); 
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: var(--bg-base);
  border-top: 1px solid var(--border-subtle);
  padding: var(--space-16) 0 var(--space-8);
}

.footer-content {
  display: flex;
  gap: var(--space-16);
  align-items: flex-start;
  padding-bottom: var(--space-12);
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: var(--space-8);
}

.footer-brand {
  flex: 2;
  max-width: 400px;
}

.footer-links-grid {
  flex: 1;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
}

.footer-column {
  min-width: 120px;
}

.footer-brand-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-top: var(--space-4);
  line-height: 1.7;
}

.footer-col-title {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-bottom: var(--space-4);
}

.footer-links { 
  list-style: none; 
  display: flex; 
  flex-direction: column; 
  gap: var(--space-3); 
}

.footer-links a { 
  font-size: 0.875rem; 
  color: var(--text-secondary); 
  text-decoration: none; 
  transition: color 0.2s ease;
}

.footer-links a:hover { 
  color: var(--primary); 
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.footer-copy { 
  font-size: 0.75rem; 
  color: var(--text-tertiary); 
}

.footer-legal { 
  display: flex; 
  gap: var(--space-6); 
}

.footer-legal a { 
  font-size: 0.75rem; 
  color: var(--text-tertiary); 
  text-decoration: none; 
  transition: color 0.2s ease;
}

.footer-legal a:hover { 
  color: var(--primary); 
}

/* Image placeholders */
.image-placeholder {
  background: var(--bg-surface);
  border: 2px dashed var(--border-medium);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-tertiary);
  font-size: 0.875rem;
  min-height: 200px;
}

/* ============================================================
   RESPONSIVE DESIGN
   ============================================================ */
@media (max-width: 1200px) {
  .encryption .container > div[style*="grid-template-columns"] {
    grid-template-columns: 1fr !important;
    gap: var(--space-12) !important;
  }
}

@media (max-width: 1024px) {
  .hero .container { 
    grid-template-columns: 1fr; 
    gap: var(--space-12); 
  }
  
  .hero-visual { 
    order: -1; 
  }
  
  .footer-content {
    flex-direction: column;
    gap: var(--space-12);
  }

  .footer-links-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 var(--space-4);
  }
  
  .hero {
    padding: calc(var(--space-20) + var(--space-4)) 0 var(--space-16);
  }
  
  .section-title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
  }
  
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }
  
  .btn {
    justify-content: center;
  }
  
  .trust-bar .container {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }
  
  .footer-links-grid {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
  
  .footer-legal {
    justify-content: center;
    flex-wrap: wrap;
  }
  
  .stats .container {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .faq-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .hero-image {
    max-width: 100%;
  }
  
  .plans-grid,
  .features-grid,
  .testimonials-grid,
  .contacts-grid {
    grid-template-columns: 1fr;
  }
  
  .stats .container {
    grid-template-columns: 1fr;
  }
}

/* ============================================================
   ANIMATIONS & INTERACTIONS
   ============================================================ */
@media (prefers-reduced-motion: no-preference) {
  .feature-card,
  .plan-card,
  .testimonial-card,
  .contact-card,
  .stat-item,
  .faq-item {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  }
  
  .btn {
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  }
  
  .hero-title {
    animation: fadeInUp 0.8s ease-out;
  }
  
  .hero-desc {
    animation: fadeInUp 0.8s ease-out 0.2s both;
  }
  
  .hero-actions {
    animation: fadeInUp 0.8s ease-out 0.4s both;
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(2rem);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ============================================================
   UTILITY CLASSES
   ============================================================ */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

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