/* ============================================================
   IDF Reader - Industrial Blueprint × Green Energy Design
   A distinctive aesthetic merging technical precision with sustainability
   ============================================================ */

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

/* Custom Properties - Design Tokens */
:root {
  /* Color Palette - Industrial Blueprint with Green Energy */
  --bg-primary: #0a1628;
  --bg-secondary: #0f1e32;
  --bg-elevated: #152238;
  --bg-card: #1a2942;
  --bg-card-hover: #1f3150;

  --text-primary: #f0f4f8;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  /* Accent Colors - Electric Green Energy */
  --accent-primary: #84ff00;
  --accent-secondary: #00ffd5;
  --accent-tertiary: #00b8ff;
  --accent-glow: rgba(132, 255, 0, 0.3);

  /* Functional Colors */
  --success: #22c55e;
  --warning: #f59e0b;
  --error: #ef4444;

  /* Blueprint Grid Colors */
  --grid-line: rgba(132, 255, 0, 0.05);
  --grid-line-accent: rgba(132, 255, 0, 0.1);

  /* Borders */
  --border-subtle: rgba(148, 163, 184, 0.1);
  --border-medium: rgba(148, 163, 184, 0.2);
  --border-accent: rgba(132, 255, 0, 0.3);

  /* Typography */
  --font-primary: 'Rubik', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'Space Mono', 'SF Mono', 'Fira Code', monospace;

  /* Font Weights */
  --weight-light: 300;
  --weight-regular: 400;
  --weight-medium: 500;
  --weight-semibold: 600;
  --weight-bold: 700;
  --weight-black: 900;

  /* Font Sizes */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;
  --text-6xl: 3.75rem;
  --text-7xl: 4.5rem;

  /* Spacing */
  --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;

  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-2xl: 24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.5);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 40px var(--accent-glow);
  --shadow-glow-sm: 0 0 20px var(--accent-glow);

  /* Transitions */
  --ease-out: cubic-bezier(0.33, 1, 0.68, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);

  --duration-fast: 150ms;
  --duration-normal: 300ms;
  --duration-slow: 500ms;
  --duration-slower: 800ms;
}

/* Light Theme */
.theme-light {
  --bg-primary: #f8fafc;
  --bg-secondary: #f1f5f9;
  --bg-elevated: #ffffff;
  --bg-card: #ffffff;
  --bg-card-hover: #f8fafc;

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;

  --accent-primary: #16a34a;
  --accent-secondary: #0d9488;
  --accent-tertiary: #0284c7;
  --accent-glow: rgba(22, 163, 74, 0.2);

  --grid-line: rgba(22, 163, 74, 0.04);
  --grid-line-accent: rgba(22, 163, 74, 0.08);

  --border-subtle: rgba(15, 23, 42, 0.05);
  --border-medium: rgba(15, 23, 42, 0.1);
  --border-accent: rgba(22, 163, 74, 0.3);

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.12);
}

/* ============================================================
   Global Styles
   ============================================================ */

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

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

/* Blueprint Grid Background */
.blueprint-grid {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px),
    linear-gradient(var(--grid-line-accent) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line-accent) 1px, transparent 1px);
  background-size:
    100px 100px,
    100px 100px,
    20px 20px,
    20px 20px;
  opacity: 0.6;
}

/* Container */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

@media (max-width: 768px) {
  .container {
    padding: 0 var(--space-4);
  }
}

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

.skip-links {
  position: absolute;
  top: 0;
  right: 0;
  z-index: 10000;
}

.skip-link {
  position: absolute;
  top: -100px;
  right: var(--space-4);
  background: var(--accent-primary);
  color: var(--bg-primary);
  padding: var(--space-3) var(--space-6);
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  font-weight: var(--weight-semibold);
  text-decoration: none;
  transition: top var(--duration-normal) var(--ease-out);
}

.skip-link:focus {
  top: 0;
}

/* Focus Styles */
*:focus-visible {
  outline: 2px solid var(--accent-primary);
  outline-offset: 3px;
}

*:focus:not(:focus-visible) {
  outline: none;
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ============================================================
   Navigation
   ============================================================ */

.navbar {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  z-index: 1000;
  background: rgba(10, 22, 40, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
  transition: all var(--duration-normal) var(--ease-out);
}

.theme-light .navbar {
  background: rgba(248, 250, 252, 0.9);
}

.navbar.scrolled {
  background: rgba(10, 22, 40, 0.95);
  box-shadow: var(--shadow-lg);
}

.theme-light .navbar.scrolled {
  background: rgba(255, 255, 255, 0.98);
}

.nav-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: var(--space-4) var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
}

/* Brand */
.nav-brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--text-primary);
}

.brand-logo {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.brand-logo .logo {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

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

.brand-name {
  font-size: var(--text-lg);
  font-weight: var(--weight-bold);
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.brand-tagline {
  font-size: var(--text-xs);
  color: var(--accent-primary);
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* Nav Menu */
.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.nav-link {
  position: relative;
  display: flex;
  align-items: center;
  padding: var(--space-3) var(--space-4);
  color: var(--text-secondary);
  text-decoration: none;
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  border-radius: var(--radius-md);
  transition: all var(--duration-fast) var(--ease-out);
}

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

.nav-link[aria-current="page"] {
  color: var(--accent-primary);
}

.nav-link-indicator {
  position: absolute;
  bottom: 0;
  right: var(--space-4);
  left: var(--space-4);
  height: 2px;
  background: var(--accent-primary);
  border-radius: var(--radius-full);
  transform: scaleX(0);
  transition: transform var(--duration-fast) var(--ease-out);
}

.nav-link[aria-current="page"] .nav-link-indicator,
.nav-link:hover .nav-link-indicator {
  transform: scaleX(1);
}

/* Nav Actions */
.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

/* Theme Toggle */
.theme-toggle {
  position: relative;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
}

.theme-toggle:hover {
  color: var(--accent-primary);
  border-color: var(--accent-primary);
}

.theme-icon-light,
.theme-icon-dark {
  position: absolute;
  transition: all var(--duration-normal) var(--ease-out);
}

.theme-icon-dark {
  opacity: 0;
  transform: rotate(-90deg) scale(0.5);
}

.theme-light .theme-icon-light {
  opacity: 0;
  transform: rotate(90deg) scale(0.5);
}

.theme-light .theme-icon-dark {
  opacity: 1;
  transform: rotate(0) scale(1);
}

/* Nav CTA Button */
.btn-nav-cta {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--accent-primary);
  color: var(--bg-primary);
  border: none;
  border-radius: var(--radius-md);
  font-family: var(--font-primary);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
}

.btn-nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow-sm);
}

/* Hamburger Menu */
.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  background: transparent;
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  cursor: pointer;
  padding: 0;
}

.hamburger {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  width: 100%;
  height: 100%;
}

.hamburger span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--text-primary);
  border-radius: var(--radius-full);
  transition: all var(--duration-normal) var(--ease-out);
}

.nav-toggle[aria-expanded="true"] .hamburger span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .hamburger span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .hamburger span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Navigation */
@media (max-width: 768px) {
  .nav-container {
    padding: var(--space-3) var(--space-4);
  }

  .nav-menu {
    position: fixed;
    top: 60px;
    right: 0;
    left: 0;
    bottom: 0;
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-1);
    padding: var(--space-4);
    background: var(--bg-primary);
    border-top: 1px solid var(--border-subtle);
    transform: translateX(100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--duration-normal) var(--ease-out);
  }

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

  .nav-link {
    padding: var(--space-4);
    font-size: var(--text-base);
    border-radius: var(--radius-lg);
  }

  .nav-toggle {
    display: flex;
  }

  .btn-nav-cta {
    display: none;
  }

  .brand-tagline {
    display: none;
  }
}

/* ============================================================
   Hero Section
   ============================================================ */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: var(--space-32) 0 var(--space-16);
  overflow: hidden;
}

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

.hero-gradient {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(132, 255, 0, 0.15), transparent),
    radial-gradient(ellipse 60% 40% at 80% 60%, rgba(0, 255, 213, 0.1), transparent),
    radial-gradient(ellipse 50% 30% at 20% 80%, rgba(0, 184, 255, 0.08), transparent);
}

.theme-light .hero-gradient {
  background:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(22, 163, 74, 0.1), transparent),
    radial-gradient(ellipse 60% 40% at 80% 60%, rgba(13, 148, 136, 0.08), transparent);
}

/* Hero Grid Lines */
.hero-grid-lines {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.grid-line {
  position: absolute;
  background: var(--accent-primary);
  opacity: 0.1;
}

.grid-line.horizontal {
  height: 1px;
  width: 100%;
  right: 0;
}

.grid-line.horizontal:nth-child(1) { top: 30%; animation: pulse-line 4s ease-in-out infinite; }
.grid-line.horizontal:nth-child(2) { top: 50%; animation: pulse-line 4s ease-in-out infinite 0.5s; }
.grid-line.horizontal:nth-child(3) { top: 70%; animation: pulse-line 4s ease-in-out infinite 1s; }

.grid-line.vertical {
  width: 1px;
  height: 100%;
  top: 0;
}

.grid-line.vertical:nth-child(4) { right: 25%; animation: pulse-line 4s ease-in-out infinite 1.5s; }
.grid-line.vertical:nth-child(5) { right: 50%; animation: pulse-line 4s ease-in-out infinite 2s; }
.grid-line.vertical:nth-child(6) { right: 75%; animation: pulse-line 4s ease-in-out infinite 2.5s; }

@keyframes pulse-line {
  0%, 100% { opacity: 0.05; }
  50% { opacity: 0.15; }
}

/* Hero Particles */
.hero-particles {
  position: absolute;
  inset: 0;
}

.particle {
  position: absolute;
  width: 4px;
  height: 4px;
  background: var(--accent-primary);
  border-radius: var(--radius-full);
  opacity: 0;
  animation: float-particle 8s ease-in-out infinite;
}

.particle:nth-child(1) { top: 20%; right: 10%; animation-delay: 0s; }
.particle:nth-child(2) { top: 40%; right: 80%; animation-delay: 1s; }
.particle:nth-child(3) { top: 60%; right: 30%; animation-delay: 2s; }
.particle:nth-child(4) { top: 80%; right: 60%; animation-delay: 3s; }
.particle:nth-child(5) { top: 30%; right: 90%; animation-delay: 4s; }
.particle:nth-child(6) { top: 70%; right: 20%; animation-delay: 5s; }

@keyframes float-particle {
  0%, 100% {
    opacity: 0;
    transform: translateY(20px);
  }
  20%, 80% {
    opacity: 0.6;
  }
  50% {
    transform: translateY(-20px);
  }
}

/* Hero Container */
.hero-container {
  position: relative;
  z-index: 1;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-6);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
}

@media (max-width: 1024px) {
  .hero-container {
    grid-template-columns: 1fr;
    text-align: center;
  }
}

/* Hero Content */
.hero-content {
  max-width: 600px;
}

@media (max-width: 1024px) {
  .hero-content {
    max-width: 100%;
    margin: 0 auto;
  }
}

/* Hero Badge */
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-4);
  background: rgba(132, 255, 0, 0.1);
  border: 1px solid rgba(132, 255, 0, 0.2);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-6);
  animation: fade-in-up 0.8s var(--ease-out) forwards;
  opacity: 0;
}

.theme-light .hero-badge {
  background: rgba(22, 163, 74, 0.1);
  border-color: rgba(22, 163, 74, 0.2);
}

.badge-dot {
  width: 8px;
  height: 8px;
  background: var(--accent-primary);
  border-radius: var(--radius-full);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.2); opacity: 0.7; }
}

.badge-text {
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--accent-primary);
}

/* Hero Title */
.hero-title {
  font-size: var(--text-6xl);
  font-weight: var(--weight-black);
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-6);
}

.title-line {
  display: block;
}

.title-word {
  display: inline-block;
  opacity: 0;
  animation: fade-in-up 0.8s var(--ease-out) forwards;
}

.title-word[data-animation="1"] { animation-delay: 0.1s; }
.title-word[data-animation="2"] { animation-delay: 0.2s; }
.title-word[data-animation="3"] { animation-delay: 0.3s; }
.title-word[data-animation="4"] { animation-delay: 0.4s; }

.title-word.accent {
  color: var(--accent-primary);
  text-shadow: 0 0 40px var(--accent-glow);
}

@keyframes fade-in-up {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 768px) {
  .hero-title {
    font-size: var(--text-4xl);
  }
}

/* Hero Description */
.hero-description {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-8);
  opacity: 0;
  animation: fade-in-up 0.8s var(--ease-out) 0.5s forwards;
}

.description-highlight {
  color: var(--text-primary);
  font-weight: var(--weight-semibold);
}

/* Hero CTA */
.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-bottom: var(--space-12);
  opacity: 0;
  animation: fade-in-up 0.8s var(--ease-out) 0.6s forwards;
}

@media (max-width: 1024px) {
  .hero-cta {
    justify-content: center;
  }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-6);
  border: none;
  border-radius: var(--radius-lg);
  font-family: var(--font-primary);
  font-size: var(--text-base);
  font-weight: var(--weight-semibold);
  text-decoration: none;
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-out);
}

.btn-primary {
  position: relative;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  color: var(--bg-primary);
  overflow: hidden;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-glow);
}

.btn-primary .btn-shine {
  position: absolute;
  top: 0;
  right: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
  transition: right 0.6s var(--ease-out);
}

.btn-primary:hover .btn-shine {
  right: 100%;
}

.btn-large {
  padding: var(--space-5) var(--space-8);
}

.btn-large .btn-content {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.btn-large .btn-text {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  text-align: right;
}

.btn-large .btn-label {
  font-size: var(--text-lg);
}

.btn-large .btn-sublabel {
  font-size: var(--text-xs);
  opacity: 0.8;
  font-weight: var(--weight-regular);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 2px solid var(--border-medium);
}

.btn-outline:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

.btn-outline .btn-arrow {
  transition: transform var(--duration-fast) var(--ease-out);
}

.btn-outline:hover .btn-arrow {
  transform: translateX(-4px);
}

/* Hero Stats */
.hero-stats {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  opacity: 0;
  animation: fade-in-up 0.8s var(--ease-out) 0.7s forwards;
}

@media (max-width: 1024px) {
  .hero-stats {
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .hero-stats {
    gap: var(--space-4);
    flex-wrap: wrap;
  }
}

.stat-item {
  display: flex;
  align-items: baseline;
  gap: var(--space-1);
  flex-wrap: wrap;
}

.stat-value {
  font-size: var(--text-3xl);
  font-weight: var(--weight-bold);
  font-family: var(--font-mono);
  color: var(--text-primary);
}

.stat-plus,
.stat-percent {
  font-size: var(--text-xl);
  font-weight: var(--weight-bold);
  color: var(--accent-primary);
}

.stat-label {
  font-size: var(--text-sm);
  color: var(--text-muted);
  width: 100%;
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border-medium);
}

/* Hero Visual */
.hero-visual {
  position: relative;
  opacity: 0;
  animation: fade-in-up 0.8s var(--ease-out) 0.4s forwards;
}

@media (max-width: 1024px) {
  .hero-visual {
    display: none;
  }
}

.visual-frame {
  position: relative;
  aspect-ratio: 1;
  max-width: 500px;
  margin: 0 auto;
}

.frame-corner {
  position: absolute;
  width: 40px;
  height: 40px;
  border: 2px solid var(--accent-primary);
  opacity: 0.5;
}

.frame-corner.top-right { top: 0; right: 0; border-bottom: none; border-left: none; }
.frame-corner.top-left { top: 0; left: 0; border-bottom: none; border-right: none; }
.frame-corner.bottom-right { bottom: 0; right: 0; border-top: none; border-left: none; }
.frame-corner.bottom-left { bottom: 0; left: 0; border-top: none; border-right: none; }

/* Building Schematic */
.building-schematic {
  position: absolute;
  inset: var(--space-8);
  display: flex;
  align-items: center;
  justify-content: center;
}

.schematic-layer {
  position: absolute;
  inset: 0;
}

.building-outline {
  position: absolute;
  inset: 20%;
  border: 2px solid var(--accent-primary);
  opacity: 0.3;
  clip-path: polygon(
    20% 100%, 20% 40%, 35% 40%, 35% 20%, 65% 20%, 65% 40%, 80% 40%, 80% 100%
  );
  animation: building-pulse 3s ease-in-out infinite;
}

@keyframes building-pulse {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 0.5; }
}

/* Energy Flow */
.energy-flow {
  position: absolute;
  inset: 0;
}

.flow-line {
  position: absolute;
  background: linear-gradient(180deg, var(--accent-primary), transparent);
  width: 2px;
  height: 60px;
  opacity: 0;
  animation: flow-down 2s ease-out infinite;
}

.flow-line:nth-child(1) { right: 30%; animation-delay: 0s; }
.flow-line:nth-child(2) { right: 50%; animation-delay: 0.6s; }
.flow-line:nth-child(3) { right: 70%; animation-delay: 1.2s; }

@keyframes flow-down {
  0% { top: 10%; opacity: 0; }
  20% { opacity: 1; }
  80% { opacity: 1; }
  100% { top: 80%; opacity: 0; }
}

/* Energy Nodes */
.energy-nodes {
  position: absolute;
  inset: 0;
}

.node {
  position: absolute;
  width: 12px;
  height: 12px;
  background: var(--bg-primary);
  border: 2px solid var(--accent-primary);
  border-radius: var(--radius-full);
  animation: node-pulse 2s ease-in-out infinite;
}

.node::after {
  content: attr(data-label);
  position: absolute;
  top: 100%;
  right: 50%;
  transform: translateX(50%);
  margin-top: var(--space-2);
  font-size: var(--text-xs);
  font-family: var(--font-mono);
  color: var(--accent-primary);
  white-space: nowrap;
}

.node:nth-child(1) { top: 35%; right: 25%; animation-delay: 0s; }
.node:nth-child(2) { top: 50%; right: 75%; animation-delay: 0.5s; }
.node:nth-child(3) { top: 70%; right: 40%; animation-delay: 1s; }
.node:nth-child(4) { top: 25%; right: 55%; animation-delay: 1.5s; }

@keyframes node-pulse {
  0%, 100% { box-shadow: 0 0 0 0 var(--accent-glow); }
  50% { box-shadow: 0 0 20px 4px var(--accent-glow); }
}

/* Data Stream */
.data-stream {
  position: absolute;
  bottom: 10%;
  right: 0;
  left: 0;
  display: flex;
  gap: var(--space-4);
  animation: scroll-data 15s linear infinite;
}

.data-stream span {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--accent-primary);
  opacity: 0.6;
  white-space: nowrap;
}

@keyframes scroll-data {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* Visual Badge */
.visual-badge {
  position: absolute;
  bottom: var(--space-4);
  right: var(--space-4);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  background: rgba(132, 255, 0, 0.1);
  border: 1px solid rgba(132, 255, 0, 0.2);
  border-radius: var(--radius-md);
  font-size: var(--text-xs);
  font-family: var(--font-mono);
  color: var(--accent-primary);
}

.badge-icon {
  display: flex;
  color: var(--accent-primary);
}

/* Scroll Indicator */
.hero-scroll-indicator {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  color: var(--text-muted);
  animation: bounce-scroll 2s ease-in-out infinite;
}

.scroll-text {
  font-size: var(--text-xs);
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

@keyframes bounce-scroll {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* ============================================================
   Trust Section
   ============================================================ */

.trust-section {
  position: relative;
  z-index: 1;
  padding: var(--space-16) 0;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.trust-label {
  text-align: center;
  font-size: var(--text-sm);
  color: var(--text-muted);
  margin-bottom: var(--space-8);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.trust-logos {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-8);
}

.trust-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4) var(--space-6);
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  transition: all var(--duration-normal) var(--ease-out);
}

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

.logo-placeholder {
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--text-muted);
}

/* ============================================================
   Section Styles
   ============================================================ */

section {
  position: relative;
  z-index: 1;
}

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

.section-header.align-start {
  text-align: right;
}

.section-tag {
  display: inline-block;
  padding: var(--space-1) var(--space-4);
  background: rgba(132, 255, 0, 0.1);
  border: 1px solid rgba(132, 255, 0, 0.2);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  font-family: var(--font-mono);
  color: var(--accent-primary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-4);
}

.theme-light .section-tag {
  background: rgba(22, 163, 74, 0.1);
  border-color: rgba(22, 163, 74, 0.2);
}

.section-title {
  font-size: var(--text-4xl);
  font-weight: var(--weight-bold);
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-4);
}

.section-title.align-start {
  text-align: right;
}

.section-title span {
  display: block;
}

.title-accent {
  color: var(--accent-primary);
}

.section-description {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

.section-description.align-start {
  margin: 0;
  text-align: right;
}

@media (max-width: 768px) {
  .section-title {
    font-size: var(--text-3xl);
  }
}

/* ============================================================
   Features Section
   ============================================================ */

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

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

@media (max-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .features-grid {
    grid-template-columns: 1fr;
  }
}

.feature-card {
  position: relative;
  padding: var(--space-8);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  transition: all var(--duration-normal) var(--ease-out);
  overflow: hidden;
}

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

.feature-card.featured {
  border-color: var(--accent-primary);
  background: linear-gradient(135deg, var(--bg-card), rgba(132, 255, 0, 0.05));
}

.card-accent {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
  opacity: 0;
  transition: opacity var(--duration-normal) var(--ease-out);
}

.feature-card:hover .card-accent,
.feature-card.featured .card-accent {
  opacity: 1;
}

.card-badge {
  position: absolute;
  top: var(--space-4);
  left: var(--space-4);
  padding: var(--space-1) var(--space-3);
  background: var(--accent-primary);
  color: var(--bg-primary);
  font-size: var(--text-xs);
  font-weight: var(--weight-bold);
  border-radius: var(--radius-full);
}

.card-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  background: rgba(132, 255, 0, 0.1);
  border-radius: var(--radius-lg);
  color: var(--accent-primary);
  margin-bottom: var(--space-5);
  transition: all var(--duration-normal) var(--ease-out);
}

.theme-light .card-icon {
  background: rgba(22, 163, 74, 0.1);
}

.feature-card:hover .card-icon {
  transform: scale(1.1);
  box-shadow: var(--shadow-glow-sm);
}

.card-title {
  font-size: var(--text-xl);
  font-weight: var(--weight-semibold);
  margin-bottom: var(--space-3);
  color: var(--text-primary);
}

.card-description {
  font-size: var(--text-base);
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-4);
}

.card-tag {
  display: inline-block;
  padding: var(--space-1) var(--space-3);
  background: var(--bg-secondary);
  border-radius: var(--radius-md);
  font-size: var(--text-xs);
  font-family: var(--font-mono);
  color: var(--text-muted);
}

/* ============================================================
   Testimonials Section
   ============================================================ */

.testimonials {
  padding: var(--space-24) 0;
  background: var(--bg-secondary);
}

.testimonials-track {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

@media (max-width: 1024px) {
  .testimonials-track {
    grid-template-columns: 1fr;
    max-width: 600px;
    margin: 0 auto;
  }
}

.testimonial-card {
  padding: var(--space-8);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  transition: all var(--duration-normal) var(--ease-out);
}

.testimonial-card:hover {
  border-color: var(--accent-primary);
  transform: translateY(-4px);
}

.testimonial-header {
  margin-bottom: var(--space-6);
}

.testimonial-metric {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.metric-value {
  font-size: var(--text-3xl);
  font-weight: var(--weight-bold);
  font-family: var(--font-mono);
  color: var(--accent-primary);
}

.metric-label {
  font-size: var(--text-sm);
  color: var(--text-muted);
}

.testimonial-quote {
  font-size: var(--text-base);
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-6);
  font-style: normal;
}

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

.author-avatar {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(132, 255, 0, 0.1);
  border: 2px solid var(--accent-primary);
  border-radius: var(--radius-full);
  font-weight: var(--weight-bold);
  font-size: var(--text-sm);
  color: var(--accent-primary);
}

.author-info {
  display: flex;
  flex-direction: column;
}

.author-info strong {
  font-weight: var(--weight-semibold);
  color: var(--text-primary);
}

.author-info span {
  font-size: var(--text-sm);
  color: var(--text-muted);
}

/* ============================================================
   Pricing Section
   ============================================================ */

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

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
  align-items: stretch;
}

@media (max-width: 1024px) {
  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 500px;
    margin: 0 auto;
  }
}

.pricing-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: var(--space-8);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  transition: all var(--duration-normal) var(--ease-out);
}

.pricing-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.pricing-card.featured {
  border-color: var(--accent-primary);
  background: linear-gradient(180deg, var(--bg-card), rgba(132, 255, 0, 0.05));
  box-shadow: var(--shadow-glow);
}

@media (min-width: 1025px) {
  .pricing-card.featured {
    transform: scale(1.05);
    z-index: 1;
  }

  .pricing-card.featured:hover {
    transform: scale(1.05) translateY(-4px);
  }
}

.pricing-badge {
  position: absolute;
  top: calc(var(--space-4) * -1);
  right: 50%;
  transform: translateX(50%);
  padding: var(--space-2) var(--space-4);
  background: var(--accent-primary);
  color: var(--bg-primary);
  font-size: var(--text-xs);
  font-weight: var(--weight-bold);
  border-radius: var(--radius-full);
  white-space: nowrap;
}

.pricing-header {
  text-align: center;
  padding-bottom: var(--space-6);
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: var(--space-6);
}

.pricing-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  margin: 0 auto var(--space-4);
  background: rgba(132, 255, 0, 0.1);
  border-radius: var(--radius-lg);
  color: var(--accent-primary);
}

.pricing-title {
  font-size: var(--text-xl);
  font-weight: var(--weight-bold);
  margin-bottom: var(--space-2);
  color: var(--text-primary);
}

.pricing-subtitle {
  font-size: var(--text-sm);
  color: var(--text-muted);
}

.pricing-features {
  list-style: none;
  flex: 1;
  margin-bottom: var(--space-6);
}

.pricing-features li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-3) 0;
  font-size: var(--text-sm);
  color: var(--text-secondary);
}

.feature-check {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  background: rgba(132, 255, 0, 0.1);
  border-radius: var(--radius-full);
  color: var(--accent-primary);
}

/* Card Buttons */
.btn-outline-card {
  display: block;
  width: 100%;
  padding: var(--space-4);
  background: transparent;
  border: 2px solid var(--border-medium);
  border-radius: var(--radius-lg);
  color: var(--text-primary);
  font-family: var(--font-primary);
  font-size: var(--text-base);
  font-weight: var(--weight-semibold);
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
}

.btn-outline-card:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

.btn-primary-card {
  display: block;
  width: 100%;
  padding: var(--space-4);
  background: var(--accent-primary);
  border: none;
  border-radius: var(--radius-lg);
  color: var(--bg-primary);
  font-family: var(--font-primary);
  font-size: var(--text-base);
  font-weight: var(--weight-semibold);
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
}

.btn-primary-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow-sm);
}

/* Pricing Note */
.pricing-note {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  max-width: 700px;
  margin: var(--space-12) auto 0;
  padding: var(--space-6);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
}

.note-icon {
  flex-shrink: 0;
  color: var(--accent-primary);
}

.pricing-note p {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ============================================================
   FAQ Section
   ============================================================ */

.faq-section {
  padding: var(--space-24) 0;
  background: var(--bg-secondary);
}

.faq-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
  max-width: 1000px;
  margin: 0 auto;
}

@media (max-width: 768px) {
  .faq-grid {
    grid-template-columns: 1fr;
  }
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--duration-normal) var(--ease-out);
}

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

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-5) var(--space-6);
  background: transparent;
  border: none;
  text-align: right;
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
}

.faq-question:hover {
  background: var(--bg-card-hover);
}

.question-text {
  font-size: var(--text-base);
  font-weight: var(--weight-medium);
  color: var(--text-primary);
  font-family: var(--font-primary);
}

.faq-icon {
  flex-shrink: 0;
  color: var(--text-muted);
  transition: all var(--duration-normal) var(--ease-out);
}

.faq-question[aria-expanded="true"] .faq-icon {
  transform: rotate(45deg);
  color: var(--accent-primary);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: all var(--duration-normal) var(--ease-out);
}

.faq-question[aria-expanded="true"] + .faq-answer {
  max-height: 300px;
}

.faq-answer p {
  padding: 0 var(--space-6) var(--space-5);
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ============================================================
   CTA Section
   ============================================================ */

.cta-section {
  position: relative;
  padding: var(--space-24) 0;
  overflow: hidden;
}

.cta-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--bg-secondary), var(--bg-primary));
}

.cta-grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(132, 255, 0, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(132, 255, 0, 0.03) 1px, transparent 1px);
  background-size: 50px 50px;
}

.cta-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
}

.cta-title {
  font-size: var(--text-5xl);
  font-weight: var(--weight-bold);
  line-height: 1.2;
  margin-bottom: var(--space-4);
}

.cta-title span {
  display: block;
}

.cta-accent {
  color: var(--accent-primary);
}

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

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

.btn-cta-primary {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-8);
  background: var(--accent-primary);
  color: var(--bg-primary);
  border: none;
  border-radius: var(--radius-lg);
  font-family: var(--font-primary);
  font-size: var(--text-lg);
  font-weight: var(--weight-semibold);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
}

.btn-cta-primary:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-glow);
}

.btn-cta-outline {
  display: inline-flex;
  align-items: center;
  padding: var(--space-4) var(--space-8);
  background: transparent;
  color: var(--text-primary);
  border: 2px solid var(--border-medium);
  border-radius: var(--radius-lg);
  font-family: var(--font-primary);
  font-size: var(--text-lg);
  font-weight: var(--weight-semibold);
  text-decoration: none;
  transition: all var(--duration-fast) var(--ease-out);
}

.btn-cta-outline:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

@media (max-width: 768px) {
  .cta-title {
    font-size: var(--text-3xl);
  }
}

/* ============================================================
   Contact Section
   ============================================================ */

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

.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: start;
}

@media (max-width: 1024px) {
  .contact-layout {
    grid-template-columns: 1fr;
    gap: var(--space-12);
  }
}

.contact-methods {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  margin-top: var(--space-8);
}

.contact-method {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  padding: var(--space-5);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  transition: all var(--duration-normal) var(--ease-out);
}

.contact-method:hover {
  border-color: var(--accent-primary);
  transform: translateX(-4px);
}

.method-icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: rgba(132, 255, 0, 0.1);
  border-radius: var(--radius-md);
  color: var(--accent-primary);
}

.method-content h3 {
  font-size: var(--text-base);
  font-weight: var(--weight-semibold);
  color: var(--text-primary);
  margin-bottom: var(--space-1);
}

.method-content p,
.method-content a {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  text-decoration: none;
}

.method-content a:hover {
  color: var(--accent-primary);
}

/* Contact Form */
.contact-form-wrapper {
  padding: var(--space-8);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
}

@media (max-width: 640px) {
  .form-row {
    grid-template-columns: 1fr;
  }
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form-group label {
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--text-primary);
}

.required {
  color: var(--error);
}

.form-group input,
.form-group select,
.form-group textarea {
  padding: var(--space-4);
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  font-family: var(--font-primary);
  font-size: var(--text-base);
  color: var(--text-primary);
  transition: all var(--duration-fast) var(--ease-out);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-muted);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.form-group select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: left var(--space-4) center;
  background-size: 16px;
  padding-left: var(--space-10);
}

.form-meta {
  display: flex;
  justify-content: space-between;
}

.form-help {
  font-size: var(--text-xs);
  color: var(--text-muted);
}

.char-count {
  font-size: var(--text-xs);
  font-family: var(--font-mono);
  color: var(--text-muted);
}

.error-message {
  font-size: var(--text-xs);
  color: var(--error);
  display: none;
}

.error-message.show {
  display: block;
}

.form-group input.error,
.form-group select.error,
.form-group textarea.error {
  border-color: var(--error);
}

/* Submit Button */
.btn-submit {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-8);
  background: var(--accent-primary);
  color: var(--bg-primary);
  border: none;
  border-radius: var(--radius-lg);
  font-family: var(--font-primary);
  font-size: var(--text-base);
  font-weight: var(--weight-semibold);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
}

.btn-submit:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow-sm);
}

.btn-submit:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

.btn-submit .btn-loader {
  display: none;
  animation: spin 1s linear infinite;
}

.btn-submit.loading .btn-text,
.btn-submit.loading .btn-icon {
  display: none;
}

.btn-submit.loading .btn-loader {
  display: block;
}

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

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

.footer {
  position: relative;
  z-index: 1;
  padding: var(--space-16) 0 var(--space-8);
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-subtle);
}

.footer-main {
  display: grid;
  grid-template-columns: 1.5fr 2fr;
  gap: var(--space-16);
  padding-bottom: var(--space-12);
  border-bottom: 1px solid var(--border-subtle);
}

@media (max-width: 768px) {
  .footer-main {
    grid-template-columns: 1fr;
    gap: var(--space-10);
  }
}

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

.footer-logo-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  margin-bottom: var(--space-4);
}

.footer-logo {
  width: 40px;
  height: 40px;
  object-fit: contain;
}

.footer-brand-name {
  font-size: var(--text-xl);
  font-weight: var(--weight-bold);
  color: var(--text-primary);
}

.footer-description {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.7;
}

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

@media (max-width: 640px) {
  .footer-links-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.footer-section h4 {
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: var(--text-primary);
  margin-bottom: var(--space-4);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

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

.footer-links a {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-out);
}

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

.footer-contact-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

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

@media (max-width: 640px) {
  .footer-bottom {
    flex-direction: column;
    gap: var(--space-2);
    text-align: center;
  }
}

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

.footer-made {
  font-family: var(--font-mono);
}

/* ============================================================
   Scroll to Top
   ============================================================ */

.scroll-to-top {
  position: fixed;
  bottom: var(--space-8);
  left: var(--space-8);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: var(--accent-primary);
  color: var(--bg-primary);
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--duration-normal) var(--ease-out);
  box-shadow: var(--shadow-lg);
}

.scroll-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.scroll-to-top:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}

/* ============================================================
   Cookie Banner
   ============================================================ */

.cookie-banner {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  left: var(--space-6);
  z-index: 9999;
  max-width: 500px;
  margin-right: auto;
  padding: var(--space-6);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  animation: slide-up 0.5s var(--ease-out) forwards;
}

@keyframes slide-up {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.cookie-banner p {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  margin-bottom: var(--space-4);
  line-height: 1.6;
}

.cookie-actions {
  display: flex;
  gap: var(--space-3);
}

.cookie-button {
  padding: var(--space-2) var(--space-4);
  background: transparent;
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  font-family: var(--font-primary);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--text-primary);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
}

.cookie-button:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

.cookie-button.primary {
  background: var(--accent-primary);
  border-color: var(--accent-primary);
  color: var(--bg-primary);
}

.cookie-button.primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow-sm);
}

/* ============================================================
   Utilities
   ============================================================ */

.text-center { text-align: center; }
.text-right { text-align: right; }
.text-left { text-align: left; }

.mt-4 { margin-top: var(--space-4); }
.mt-8 { margin-top: var(--space-8); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-8 { margin-bottom: var(--space-8); }

/* Animations for scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s var(--ease-out);
}

.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}