:root {
  /* ═══════════════════════════════════════════════════════════════
     OPTIOBYTE DESIGN SYSTEM - SEO & Performance Optimized
     Deep Sea Blue + Electric Cyan | Dark Mode First
  ═══════════════════════════════════════════════════════════════ */
  
  /* Core Brand Colors */
  --color-deep-sea: #0a192f;
  --color-deep-sea-light: #112240;
  --color-deep-sea-dark: #020c1b;
  --color-electric-cyan: #00d9ff;
  --color-cyan-glow: rgba(0, 217, 255, 0.15);
  --color-cyan-bright: #64ffda;
  
  /* Neutral Palette */
  --color-white: #e6f1ff;
  --color-slate-light: #ccd6f6;
  --color-slate: #8892b0;
  --color-slate-dark: #495670;
  
  /* Semantic Colors */
  --color-success: #64ffda;
  --color-warning: #ffd93d;
  --color-error: #ff6b6b;
  
  /* Typography Scale - Optimized for Readability */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-display: 'Outfit', var(--font-primary);
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  
  /* Type Scale (1.25 ratio - Major Third) */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.375vw, 1rem);
  --text-base: clamp(1rem, 0.9rem + 0.5vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.625vw, 1.25rem);
  --text-xl: clamp(1.25rem, 1.1rem + 0.75vw, 1.5rem);
  --text-2xl: clamp(1.5rem, 1.3rem + 1vw, 2rem);
  --text-3xl: clamp(1.875rem, 1.5rem + 1.875vw, 2.5rem);
  --text-4xl: clamp(2.25rem, 1.75rem + 2.5vw, 3.5rem);
  --text-5xl: clamp(3rem, 2rem + 5vw, 5rem);
  
  /* 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;
  --space-32: 8rem;
  
  /* Layout */
  --max-width: 1280px;
  --max-width-content: 800px;
  --header-height: 80px;
  
  /* Effects */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.3), 0 1px 3px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.4), 0 6px 10px rgba(0, 0, 0, 0.3);
  --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.5);
  --shadow-cyan: 0 0 30px rgba(0, 217, 255, 0.3);
  --shadow-cyan-intense: 0 0 60px rgba(0, 217, 255, 0.5);
  
  /* Glassmorphism */
  --glass-bg: rgba(17, 34, 64, 0.7);
  --glass-border: rgba(0, 217, 255, 0.1);
  --glass-blur: blur(20px);
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;
  --transition-bounce: 500ms cubic-bezier(0.68, -0.55, 0.265, 1.55);
  
  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 20px;
  --radius-full: 9999px;
  
  /* Z-Index Scale */
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-fixed: 300;
  --z-modal-backdrop: 400;
  --z-modal: 500;
  --z-tooltip: 600;
}

/* ═══════════════════════════════════════════════════════════════
   RESET & BASE STYLES
═══════════════════════════════════════════════════════════════ */

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--font-primary);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-slate-light);
  background: var(--color-deep-sea);
  min-height: 100vh;
  overflow-x: hidden;
}

/* Selection */
::selection {
  background: var(--color-electric-cyan);
  color: var(--color-deep-sea);
}

/* Focus Styles - Accessibility */
:focus-visible {
  outline: 2px solid var(--color-electric-cyan);
  outline-offset: 3px;
}

/* Skip Link - Accessibility */
.skip-link {
  position: absolute;
  top: -100%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-electric-cyan);
  color: var(--color-deep-sea);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-md);
  font-weight: 600;
  z-index: 9999;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: var(--space-4);
}

/* ═══════════════════════════════════════════════════════════════
   TYPOGRAPHY
═══════════════════════════════════════════════════════════════ */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-white);
  letter-spacing: -0.02em;
}

h1 { font-size: var(--text-5xl); }
h2 { font-size: var(--text-4xl); }
h3 { font-size: var(--text-3xl); }
h4 { font-size: var(--text-2xl); }
h5 { font-size: var(--text-xl); }
h6 { font-size: var(--text-lg); }

p {
  margin-bottom: var(--space-4);
  max-width: 65ch;
}

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

a:hover {
  color: var(--color-cyan-bright);
}

strong {
  color: var(--color-white);
  font-weight: 600;
}

/* ═══════════════════════════════════════════════════════════════
   LAYOUT UTILITIES
═══════════════════════════════════════════════════════════════ */

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.container-narrow {
  max-width: var(--max-width-content);
}

.section {
  padding: var(--space-24) 0;
}

.section-sm {
  padding: var(--space-16) 0;
}

.section-lg {
  padding: var(--space-32) 0;
}

/* Flex Utilities */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: var(--space-2); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }

/* Grid */
.grid { display: grid; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* Text */
.text-center { text-align: center; }
.text-gradient {
  background: linear-gradient(135deg, var(--color-white), var(--color-electric-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ═══════════════════════════════════════════════════════════════
   HEADER & NAVIGATION
═══════════════════════════════════════════════════════════════ */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: rgba(10, 25, 47, 0.85);
  backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--glass-border);
  z-index: var(--z-fixed);
  transition: all var(--transition-base);
}

.header.scrolled {
  height: 64px;
  box-shadow: var(--shadow-lg);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-white);
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--color-electric-cyan), var(--color-cyan-bright));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  color: var(--color-deep-sea);
}

.logo-text span {
  color: var(--color-electric-cyan);
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

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

.nav-link {
  position: relative;
  color: var(--color-slate-light);
  font-size: var(--text-sm);
  font-weight: 500;
  padding: var(--space-2) 0;
  transition: color var(--transition-fast);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-electric-cyan);
  transition: width var(--transition-base);
}

.nav-link:hover {
  color: var(--color-electric-cyan);
}

.nav-link:hover::after {
  width: 100%;
}

/* Dropdown */
.nav-dropdown {
  position: relative;
}

.nav-dropdown-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  min-width: 220px;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-3);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-xl);
}

.nav-dropdown:hover .nav-dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.nav-dropdown-item {
  display: block;
  padding: var(--space-3) var(--space-4);
  color: var(--color-slate-light);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.nav-dropdown-item:hover {
  background: var(--color-cyan-glow);
  color: var(--color-electric-cyan);
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
}

.menu-toggle span {
  width: 24px;
  height: 2px;
  background: var(--color-white);
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
}

/* ═══════════════════════════════════════════════════════════════
   BUTTONS
═══════════════════════════════════════════════════════════════ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-primary);
  font-size: var(--text-sm);
  font-weight: 600;
  text-decoration: none;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-electric-cyan), #00b8cc);
  color: var(--color-deep-sea);
  box-shadow: 0 4px 15px rgba(0, 217, 255, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-cyan-intense);
  color: var(--color-deep-sea);
}

.btn-secondary {
  background: transparent;
  color: var(--color-electric-cyan);
  border: 1px solid var(--color-electric-cyan);
}

.btn-secondary:hover {
  background: var(--color-cyan-glow);
  transform: translateY(-2px);
}

.btn-ghost {
  background: transparent;
  color: var(--color-slate-light);
}

.btn-ghost:hover {
  color: var(--color-electric-cyan);
}

.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-base);
}

.btn-sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-xs);
}

/* ═══════════════════════════════════════════════════════════════
   HERO SECTION
═══════════════════════════════════════════════════════════════ */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--header-height);
  overflow: hidden;
}

.hero-background {
  position: absolute;
  inset: 0;
  z-index: -1;
}

.hero-background::before {
  content: '';
  position: absolute;
  inset: 0;
  background: 
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(0, 217, 255, 0.15), transparent),
    radial-gradient(ellipse 60% 40% at 80% 60%, rgba(0, 217, 255, 0.1), transparent),
    linear-gradient(180deg, var(--color-deep-sea) 0%, var(--color-deep-sea-dark) 100%);
}

/* Animated Grid */
.hero-grid {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(0, 217, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 217, 255, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 50%, black 20%, transparent 70%);
  animation: grid-move 20s linear infinite;
}

@keyframes grid-move {
  0% { transform: translateY(0); }
  100% { transform: translateY(60px); }
}

/* Floating Particles */
.hero-particles {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.particle {
  position: absolute;
  width: 4px;
  height: 4px;
  background: var(--color-electric-cyan);
  border-radius: 50%;
  opacity: 0.5;
  animation: float-up 15s linear infinite;
}

@keyframes float-up {
  0% {
    transform: translateY(100vh) scale(0);
    opacity: 0;
  }
  10% { opacity: 0.5; }
  90% { opacity: 0.5; }
  100% {
    transform: translateY(-100vh) scale(1);
    opacity: 0;
  }
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--color-cyan-glow);
  border: 1px solid rgba(0, 217, 255, 0.2);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  color: var(--color-electric-cyan);
  margin-bottom: var(--space-6);
}

.hero-badge::before {
  content: '';
  width: 8px;
  height: 8px;
  background: var(--color-electric-cyan);
  border-radius: 50%;
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.2); }
}

.hero-title {
  font-size: var(--text-5xl);
  margin-bottom: var(--space-6);
  line-height: 1.1;
}

.hero-title .highlight {
  color: var(--color-electric-cyan);
  position: relative;
}

.hero-subtitle {
  font-size: var(--text-xl);
  color: var(--color-slate);
  margin-bottom: var(--space-8);
  max-width: 600px;
}

.hero-stats {
  display: flex;
  gap: var(--space-10);
  margin-top: var(--space-12);
  padding-top: var(--space-8);
  border-top: 1px solid var(--glass-border);
}

.hero-stat {
  text-align: left;
}

.hero-stat-value {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--color-electric-cyan);
  line-height: 1;
}

.hero-stat-label {
  font-size: var(--text-sm);
  color: var(--color-slate);
  margin-top: var(--space-2);
}

.hero-cta {
  display: flex;
  gap: var(--space-4);
  margin-top: var(--space-8);
}

/* ═══════════════════════════════════════════════════════════════
   SOCIAL PROOF / LOGOS
═══════════════════════════════════════════════════════════════ */

.social-proof {
  padding: var(--space-16) 0;
  border-bottom: 1px solid var(--glass-border);
}

.social-proof-title {
  font-size: var(--text-sm);
  color: var(--color-slate);
  text-align: center;
  margin-bottom: var(--space-8);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.logo-grid {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-12);
  flex-wrap: wrap;
  opacity: 0.6;
  filter: grayscale(100%);
  transition: all var(--transition-base);
}

.logo-grid:hover {
  opacity: 0.8;
  filter: grayscale(50%);
}

.logo-grid img {
  height: 32px;
  width: auto;
}

/* ═══════════════════════════════════════════════════════════════
   PROBLEM / SOLUTION SECTION
═══════════════════════════════════════════════════════════════ */

.problem-solution {
  background: var(--color-deep-sea-dark);
  position: relative;
  overflow: hidden;
}

.problem-solution::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-electric-cyan), transparent);
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--space-16);
}

.section-label {
  display: inline-block;
  font-size: var(--text-sm);
  color: var(--color-electric-cyan);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: var(--space-4);
}

.section-title {
  margin-bottom: var(--space-4);
}

.section-desc {
  color: var(--color-slate);
  font-size: var(--text-lg);
}

.comparison-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
}

.comparison-card {
  padding: var(--space-8);
  border-radius: var(--radius-xl);
  position: relative;
}

.comparison-card.old-way {
  background: linear-gradient(135deg, rgba(255, 107, 107, 0.05), transparent);
  border: 1px solid rgba(255, 107, 107, 0.2);
}

.comparison-card.new-way {
  background: linear-gradient(135deg, var(--color-cyan-glow), transparent);
  border: 1px solid rgba(0, 217, 255, 0.2);
}

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

.comparison-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-2xl);
}

.old-way .comparison-icon {
  background: rgba(255, 107, 107, 0.1);
}

.new-way .comparison-icon {
  background: var(--color-cyan-glow);
}

.comparison-title {
  font-size: var(--text-xl);
}

.comparison-list {
  list-style: none;
}

.comparison-list li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-3) 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.comparison-list li:last-child {
  border-bottom: none;
}

.comparison-list .icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 2px;
}

.old-way .comparison-list .icon {
  color: #ff6b6b;
}

.new-way .comparison-list .icon {
  color: var(--color-electric-cyan);
}

/* ═══════════════════════════════════════════════════════════════
   OPTIOBYTE METHOD (3-Step Process)
═══════════════════════════════════════════════════════════════ */

.method {
  position: relative;
}

.method-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
  position: relative;
}

.method-steps::before {
  content: '';
  position: absolute;
  top: 60px;
  left: 20%;
  right: 20%;
  height: 2px;
  background: linear-gradient(90deg, var(--color-electric-cyan), transparent 30%, transparent 70%, var(--color-electric-cyan));
  z-index: 0;
}

.method-step {
  position: relative;
  text-align: center;
  padding: var(--space-8);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  backdrop-filter: var(--glass-blur);
  transition: all var(--transition-base);
  z-index: 1;
}

.method-step:hover {
  transform: translateY(-8px);
  border-color: var(--color-electric-cyan);
  box-shadow: var(--shadow-cyan);
}

.method-number {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--color-electric-cyan), var(--color-cyan-bright));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-deep-sea);
  margin: 0 auto var(--space-6);
  position: relative;
  z-index: 2;
}

.method-step-title {
  font-size: var(--text-xl);
  margin-bottom: var(--space-3);
}

.method-step-desc {
  color: var(--color-slate);
  font-size: var(--text-sm);
  margin-bottom: var(--space-4);
}

.method-step-time {
  display: inline-block;
  padding: var(--space-1) var(--space-3);
  background: var(--color-cyan-glow);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  color: var(--color-electric-cyan);
}

/* ═══════════════════════════════════════════════════════════════
   BENTO BOX FEATURES
═══════════════════════════════════════════════════════════════ */

.bento {
  background: var(--color-deep-sea-dark);
}

.bento-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-template-rows: repeat(2, 280px);
  gap: var(--space-6);
}

.bento-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  backdrop-filter: var(--glass-blur);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  position: relative;
  overflow: hidden;
  transition: all var(--transition-base);
}

.bento-card:hover {
  border-color: rgba(0, 217, 255, 0.3);
  transform: translateY(-4px);
}

.bento-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 100%;
  background: linear-gradient(180deg, transparent 40%, var(--color-deep-sea-dark) 100%);
  z-index: 1;
}

.bento-card > * {
  position: relative;
  z-index: 2;
}

.bento-card.large {
  grid-column: span 2;
}

.bento-card.tall {
  grid-row: span 2;
}

.bento-icon {
  width: 56px;
  height: 56px;
  background: var(--color-cyan-glow);
  border: 1px solid rgba(0, 217, 255, 0.2);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  margin-bottom: var(--space-5);
}

.bento-title {
  font-size: var(--text-xl);
  margin-bottom: var(--space-2);
}

.bento-desc {
  color: var(--color-slate);
  font-size: var(--text-sm);
  margin-bottom: 0;
}

.bento-stat {
  font-family: var(--font-display);
  font-size: var(--text-4xl);
  font-weight: 700;
  color: var(--color-electric-cyan);
  line-height: 1;
  margin-bottom: var(--space-2);
}

/* ═══════════════════════════════════════════════════════════════
   SAVINGS CALCULATOR
═══════════════════════════════════════════════════════════════ */

.calculator {
  background: linear-gradient(135deg, var(--color-deep-sea-light), var(--color-deep-sea));
}

.calculator-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
  align-items: center;
}

.calculator-content h2 {
  margin-bottom: var(--space-4);
}

.calculator-content p {
  color: var(--color-slate);
  font-size: var(--text-lg);
}

.calculator-box {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  backdrop-filter: var(--glass-blur);
}

.calculator-input-group {
  margin-bottom: var(--space-6);
}

.calculator-label {
  display: block;
  font-size: var(--text-sm);
  color: var(--color-slate-light);
  margin-bottom: var(--space-3);
}

.calculator-input {
  width: 100%;
  padding: var(--space-4);
  background: var(--color-deep-sea);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  color: var(--color-white);
  font-family: var(--font-primary);
  font-size: var(--text-lg);
  transition: all var(--transition-fast);
}

.calculator-input:focus {
  outline: none;
  border-color: var(--color-electric-cyan);
  box-shadow: 0 0 0 3px var(--color-cyan-glow);
}

.calculator-slider {
  -webkit-appearance: none;
  width: 100%;
  height: 8px;
  background: var(--color-deep-sea);
  border-radius: var(--radius-full);
  margin-top: var(--space-2);
}

.calculator-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 24px;
  height: 24px;
  background: var(--color-electric-cyan);
  border-radius: 50%;
  cursor: pointer;
  box-shadow: var(--shadow-cyan);
}

.calculator-results {
  background: var(--color-deep-sea);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  margin-top: var(--space-6);
  text-align: center;
}

.calculator-result-label {
  font-size: var(--text-sm);
  color: var(--color-slate);
  margin-bottom: var(--space-2);
}

.calculator-result-value {
  font-family: var(--font-display);
  font-size: var(--text-4xl);
  font-weight: 700;
  color: var(--color-electric-cyan);
}

.calculator-result-sub {
  display: flex;
  justify-content: center;
  gap: var(--space-8);
  margin-top: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid var(--glass-border);
}

.calculator-result-item {
  text-align: center;
}

.calculator-result-item .value {
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--color-white);
}

.calculator-result-item .label {
  font-size: var(--text-xs);
  color: var(--color-slate);
}

/* ═══════════════════════════════════════════════════════════════
   TESTIMONIALS
═══════════════════════════════════════════════════════════════ */

.testimonials {
  overflow: hidden;
}

.testimonial-track {
  display: flex;
  gap: var(--space-6);
  animation: scroll-left 30s linear infinite;
}

@keyframes scroll-left {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

.testimonial-card {
  flex-shrink: 0;
  width: 400px;
  padding: var(--space-8);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  backdrop-filter: var(--glass-blur);
}

.testimonial-quote {
  font-size: var(--text-lg);
  color: var(--color-slate-light);
  margin-bottom: var(--space-6);
  font-style: italic;
}

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

.testimonial-avatar {
  width: 48px;
  height: 48px;
  background: var(--color-cyan-glow);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  color: var(--color-electric-cyan);
}

.testimonial-name {
  font-weight: 600;
  color: var(--color-white);
}

.testimonial-role {
  font-size: var(--text-sm);
  color: var(--color-slate);
}

/* ═══════════════════════════════════════════════════════════════
   CTA SECTION
═══════════════════════════════════════════════════════════════ */

.cta-section {
  background: linear-gradient(135deg, var(--color-deep-sea-light), var(--color-deep-sea-dark));
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, var(--color-cyan-glow) 0%, transparent 40%);
  animation: rotate-bg 30s linear infinite;
}

@keyframes rotate-bg {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.cta-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
}

.cta-title {
  margin-bottom: var(--space-4);
}

.cta-desc {
  font-size: var(--text-lg);
  color: var(--color-slate);
  margin-bottom: var(--space-8);
}

.cta-buttons {
  display: flex;
  justify-content: center;
  gap: var(--space-4);
}

/* ═══════════════════════════════════════════════════════════════
   FOOTER
═══════════════════════════════════════════════════════════════ */

.footer {
  background: var(--color-deep-sea-dark);
  border-top: 1px solid var(--glass-border);
  padding: var(--space-16) 0 var(--space-8);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-12);
  margin-bottom: var(--space-12);
}

.footer-brand {
  max-width: 300px;
}

.footer-brand .logo {
  margin-bottom: var(--space-4);
}

.footer-brand p {
  color: var(--color-slate);
  font-size: var(--text-sm);
}

.footer-title {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-white);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-4);
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: var(--space-3);
}

.footer-links a {
  color: var(--color-slate);
  font-size: var(--text-sm);
}

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

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--space-8);
  border-top: 1px solid var(--glass-border);
}

.footer-bottom p {
  color: var(--color-slate-dark);
  font-size: var(--text-sm);
  margin: 0;
}

.footer-social {
  display: flex;
  gap: var(--space-4);
}

.footer-social a {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  color: var(--color-slate);
  transition: all var(--transition-fast);
}

.footer-social a:hover {
  border-color: var(--color-electric-cyan);
  color: var(--color-electric-cyan);
  background: var(--color-cyan-glow);
}

/* ═══════════════════════════════════════════════════════════════
   RESPONSIVE DESIGN
═══════════════════════════════════════════════════════════════ */

@media (max-width: 1024px) {
  .bento-grid {
    grid-template-columns: repeat(2, 1fr);
    grid-template-rows: auto;
  }
  
  .bento-card.tall {
    grid-row: auto;
  }
  
  .method-steps {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }
  
  .method-steps::before {
    display: none;
  }
  
  .calculator-wrapper {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
  }
}

@media (max-width: 768px) {
  .nav-list {
    display: none;
  }
  
  .menu-toggle {
    display: flex;
  }
  
  .hero-content {
    text-align: center;
  }
  
  .hero-subtitle {
    margin-left: auto;
    margin-right: auto;
  }
  
  .hero-stats {
    justify-content: center;
    gap: var(--space-6);
  }
  
  .hero-cta {
    flex-direction: column;
    align-items: center;
  }
  
  .comparison-grid {
    grid-template-columns: 1fr;
  }
  
  .bento-grid {
    grid-template-columns: 1fr;
  }
  
  .bento-card.large {
    grid-column: auto;
  }
  
  .cta-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .footer-brand {
    max-width: 100%;
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: var(--space-4);
  }
}

@media (max-width: 480px) {
  .hero-stats {
    flex-direction: column;
    align-items: center;
    gap: var(--space-4);
  }
  
  .hero-stat {
    text-align: center;
  }
  
  .calculator-result-sub {
    flex-direction: column;
    gap: var(--space-4);
  }
}

/* ═══════════════════════════════════════════════════════════════
   PRINT STYLES
═══════════════════════════════════════════════════════════════ */

@media print {
  .header,
  .hero-background,
  .cta-section,
  .footer {
    display: none;
  }
  
  body {
    background: white;
    color: black;
  }
  
  h1, h2, h3, h4, h5, h6 {
    color: black;
  }
}