/* ============================================
   ANTI-GRAVITY LANDING PAGE - DESIGN SYSTEM
   Enterprise AI Automation - Dark Theme
   ============================================ */

/* ============================================
   RESET & BASE
   ============================================ */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background-color: var(--color-bg-primary);
  color: var(--color-text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

/* ============================================
   AMBIENT BACKGROUND
   ============================================ */
/* ============================================
   AMBIENT BACKGROUND
   ============================================ */
#ambient-background {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  overflow: hidden;
  z-index: 0;
  pointer-events: none;
}

.ambient-light {
  position: absolute;
  border-radius: 50%;
  filter: blur(50px);
  opacity: 0.8;
  mix-blend-mode: screen;
  animation: floatAmbient 10s ease-in-out infinite alternate;
  will-change: transform;
  transition: transform 0.1s ease-out;
}

.light-1 {
  top: -10%;
  left: -10%;
  width: 60vw;
  height: 60vw;
  background: radial-gradient(circle, var(--color-primary), transparent 70%);
  animation-duration: 15s;
}

.light-2 {
  bottom: -10%;
  right: -10%;
  width: 50vw;
  height: 50vw;
  background: radial-gradient(circle, var(--color-secondary), transparent 70%);
  opacity: 0.6;
  animation-duration: 12s;
  animation-delay: -5s;
}

.light-3 {
  top: 40%;
  left: 30%;
  width: 45vw;
  height: 45vw;
  background: radial-gradient(circle, var(--color-accent), transparent 70%);
  opacity: 0.5;
  animation-duration: 20s;
  animation-delay: -2s;
}

@keyframes floatAmbient {
  0% {
    transform: scale(1);
  }

  100% {
    transform: scale(1.1);
  }
}

/* ============================================
   DESIGN TOKENS (CSS VARIABLES)
   ============================================ */
:root {
  /* Colors - Dark Palette */
  --color-bg-primary: #0a0e1a;
  --color-bg-secondary: #0f1421;
  --color-bg-card: rgba(15, 25, 45, 0.6);
  --color-bg-card-hover: rgba(20, 35, 60, 0.8);

  /* Accent Colors */
  --color-primary: #00d4ff;
  --color-primary-glow: rgba(0, 212, 255, 0.3);
  --color-secondary: #0066ff;
  --color-accent: #00ffaa;

  /* Text Colors */
  --color-text-primary: #ffffff;
  --color-text-secondary: #a0b3cc;
  --color-text-muted: #6b7c93;

  /* Border & Effects */
  --color-border: rgba(0, 212, 255, 0.2);
  --color-border-hover: rgba(0, 212, 255, 0.5);
  --color-glow: rgba(0, 212, 255, 0.15);

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #0066ff 0%, #00d4ff 100%);
  --gradient-bg: radial-gradient(ellipse at top, rgba(0, 100, 255, 0.15) 0%, transparent 60%);
  --gradient-card: linear-gradient(135deg, rgba(15, 25, 45, 0.8) 0%, rgba(10, 20, 40, 0.9) 100%);

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  --spacing-3xl: 6rem;

  /* Typography */
  --font-size-base: 16px;
  --font-size-sm: 0.875rem;
  --font-size-md: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.5rem;
  --font-size-5xl: 3.5rem;

  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  --line-height-tight: 1.2;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.7;

  /* Borders & Radius */
  --border-radius-sm: 0.375rem;
  --border-radius-md: 0.5rem;
  --border-radius-lg: 0.75rem;
  --border-radius-xl: 1rem;
  --border-width: 1px;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 30px var(--color-primary-glow);
  --shadow-glow-strong: 0 0 50px rgba(0, 212, 255, 0.5);

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;

  /* Z-index */
  --z-header: 1000;
  --z-modal: 2000;
  --z-tooltip: 3000;

  /* Breakpoints (for reference in JS) */
  --breakpoint-sm: 640px;
  --breakpoint-md: 768px;
  --breakpoint-lg: 1024px;
  --breakpoint-xl: 1280px;
}

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

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: 'Outfit', 'Inter', sans-serif;
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  color: var(--color-text-primary);
}

h1 {
  font-size: var(--font-size-4xl);
  font-weight: 800;
}

h2 {
  font-size: var(--font-size-3xl);
}

h3 {
  font-size: var(--font-size-2xl);
}

p {
  font-size: var(--font-size-md);
  line-height: var(--line-height-relaxed);
  color: var(--color-text-secondary);
  max-width: 65ch;
}

/* ============================================
   UTILITY CLASSES
   ============================================ */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.section {
  padding: var(--spacing-3xl) 0;
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
}

.section-tag {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
}

.section-title {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--spacing-md);
  background: linear-gradient(135deg, var(--color-text-primary) 0%, var(--color-primary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-description {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  max-width: 700px;
  margin: 0 auto;
}

.glow-effect {
  box-shadow: var(--shadow-glow);
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-lg);
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-semibold);
  text-decoration: none;
  border-radius: var(--border-radius-md);
  border: none;
  cursor: pointer;
  transition: all var(--transition-normal);
  font-family: 'Inter', sans-serif;
}

.btn-primary {
  background: var(--gradient-primary);
  color: var(--color-text-primary);
  box-shadow: 0 4px 20px rgba(0, 100, 255, 0.3);
}

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

.btn-secondary {
  background: transparent;
  color: var(--color-primary);
  border: var(--border-width) solid var(--color-border);
}

.btn-secondary:hover {
  background: rgba(0, 212, 255, 0.1);
  border-color: var(--color-border-hover);
}

/* ============================================
   CARDS
   ============================================ */
.card {
  background: var(--gradient-card);
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-lg);
  transition: all var(--transition-normal);
  backdrop-filter: blur(10px);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
  opacity: 0;
  transition: opacity var(--transition-normal);
}

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

.card:hover::before {
  opacity: 1;
}

.card-icon {
  width: 80px;
  height: 80px;
  margin-bottom: var(--spacing-md);
  border-radius: var(--border-radius-md);
  overflow: hidden;
}

.card-icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.card-title {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-primary);
}

.card-description {
  font-size: var(--font-size-md);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
}

/* ============================================
   HEADER
   ============================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-header);
  background: rgba(10, 14, 26, 0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(0, 212, 255, 0.1);
  transition: all var(--transition-normal);
}

.header.scrolled {
  background: rgba(10, 14, 26, 0.95);
  box-shadow: var(--shadow-md);
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--spacing-sm);
  padding-bottom: var(--spacing-sm);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  text-decoration: none;
  color: var(--color-text-primary);
}

.logo-icon {
  width: 60px;
  height: 60px;
  object-fit: contain;
}

.logo-text {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  font-family: 'Outfit', sans-serif;
}

.nav {
  display: none;
}

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

.nav-link {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-weight: var(--font-weight-medium);
  transition: color var(--transition-fast);
}

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

.nav-link-legal {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  opacity: 0.8;
}

.nav-link-legal:hover {
  color: var(--color-primary);
  opacity: 1;
}

.header-cta {
  display: none;
}

.mobile-menu-toggle {
  display: block;
  background: none;
  border: none;
  color: var(--color-text-primary);
  font-size: var(--font-size-2xl);
  cursor: pointer;
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding-top: 80px;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  height: 100%;
  background: var(--gradient-bg);
  pointer-events: none;
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0.3;
  pointer-events: none;
}

.hero-waves {
  position: absolute;
  width: 200%;
  height: 100%;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(0, 100, 255, 0.1) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 50%, rgba(0, 212, 255, 0.1) 0%, transparent 50%);
  animation: float 20s ease-in-out infinite;
}

@keyframes float {

  0%,
  100% {
    transform: translateY(0) rotate(0deg);
  }

  50% {
    transform: translateY(-20px) rotate(2deg);
  }
}

.hero-content {
  position: relative;
  z-index: 10;
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  background: rgba(0, 212, 255, 0.1);
  border: 1px solid var(--color-border);
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: 50px;
  font-size: var(--font-size-sm);
  color: var(--color-primary);
  margin-bottom: var(--spacing-lg);
  animation: fadeInUp 0.8s ease 0.2s both;
}

.badge-icon {
  width: 16px;
  height: 16px;
  color: var(--color-primary);
}

.hero-title {
  font-size: var(--font-size-4xl);
  margin-bottom: var(--spacing-md);
  animation: fadeInUp 0.8s ease 0.4s both;
}

.hero-title .highlight {
  font-style: italic;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-description {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-xl);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  animation: fadeInUp 0.8s ease 0.6s both;
}

.hero-cta {
  animation: fadeInUp 0.8s ease 0.8s both;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ============================================
   BENEFITS SECTION
   ============================================ */
.benefits-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
  margin-top: var(--spacing-2xl);
}

.benefit-card {
  min-height: 300px;
  display: flex;
  flex-direction: column;
}

/* ============================================
   SERVICES SECTION
   ============================================ */
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-xl);
  margin-top: var(--spacing-2xl);
  justify-items: center;
}

.services-grid>.card:last-child {
  grid-column: span 2;
  width: 50%;
  margin: 0 auto;
}

@media (max-width: 1024px) {
  .services-grid>.card:last-child {
    width: 60%;
  }
}

@media (max-width: 768px) {
  .services-grid {
    grid-template-columns: 1fr;
    justify-items: stretch;
  }

  .services-grid>.card:last-child {
    grid-column: span 1;
    width: 100%;
  }
}

.service-card {
  min-height: 350px;
}

.service-card-visual {
  width: 100%;
  height: 200px;
  margin-bottom: var(--spacing-md);
  border-radius: var(--border-radius-md);
  overflow: hidden;
}

.service-card-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ============================================
   PROCESS SECTION
   ============================================ */
.process-visual {
  width: 100%;
  max-width: 600px;
  margin: 0 auto var(--spacing-2xl);
}

.process-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
}

.process-step {
  display: flex;
  gap: var(--spacing-md);
  align-items: flex-start;
}

.step-icon {
  flex-shrink: 0;
  width: 60px;
  height: 60px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  box-shadow: var(--shadow-glow);
}

.step-content h3 {
  margin-bottom: var(--spacing-xs);
}

/* ============================================
   CTA SECTION
   ============================================ */
.cta-section {
  text-align: center;
  padding: var(--spacing-3xl) 0;
  position: relative;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80%;
  height: 100%;
  background: var(--gradient-bg);
  opacity: 0.5;
  pointer-events: none;
}

.cta-content {
  position: relative;
  z-index: 10;
}

.cta-features {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-lg);
  justify-content: center;
  margin-top: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.cta-feature {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: var(--font-size-md);
  color: var(--color-text-secondary);
}

.cta-feature-icon {
  color: var(--color-primary);
  font-size: var(--font-size-xl);
}

/* ============================================
   CONTACT FORM SECTION
   ============================================ */
.form-section {
  padding: var(--spacing-3xl) 0;
  position: relative;
}

.form-container {
  max-width: 600px;
  margin: 0 auto;
}

.contact-form {
  background: var(--gradient-card);
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--border-radius-xl);
  padding: var(--spacing-xl);
  backdrop-filter: blur(10px);
}

.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-group label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-xs);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: var(--spacing-sm);
  font-size: var(--font-size-md);
  font-family: 'Inter', sans-serif;
  background: rgba(10, 20, 40, 0.5);
  border: 1px solid rgba(0, 212, 255, 0.2);
  border-radius: var(--border-radius-md);
  color: var(--color-text-primary);
  transition: all var(--transition-normal);
}

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

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1);
}

.form-group select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2300d4ff' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--spacing-sm) center;
  padding-right: var(--spacing-xl);
}

.form-group select option {
  background: var(--color-bg-secondary);
  color: var(--color-text-primary);
}

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

.form-submit {
  width: 100%;
  padding: var(--spacing-md) var(--spacing-lg);
  font-size: var(--font-size-md);
  letter-spacing: 0.05em;
}

.form-footer-text {
  text-align: center;
  margin-top: var(--spacing-lg);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  padding: var(--spacing-2xl) 0;
  border-top: 1px solid rgba(0, 212, 255, 0.1);
  text-align: center;
}

.footer-content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  align-items: center;
}

.footer-logo {
  opacity: 0.8;
}

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

/* ============================================
   RESPONSIVE - TABLET
   ============================================ */
@media (min-width: 768px) {
  .hero-title {
    font-size: var(--font-size-5xl);
  }

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

  .process-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .process-step {
    flex-direction: column;
    text-align: center;
    align-items: center;
  }

  .nav {
    display: block;
  }

  .header-cta {
    display: block;
  }

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

/* ============================================
   RESPONSIVE - DESKTOP
   ============================================ */
@media (min-width: 1024px) {
  .benefits-grid {
    grid-template-columns: repeat(3, 1fr);
  }

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

  .section-title {
    font-size: var(--font-size-4xl);
  }
}

/* ============================================
   ANIMATIONS & EFFECTS
   ============================================ */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger animations */
.fade-in:nth-child(1) {
  transition-delay: 0.1s;
}

.fade-in:nth-child(2) {
  transition-delay: 0.2s;
}

.fade-in:nth-child(3) {
  transition-delay: 0.3s;
}

/* ============================================
   ANIMATED ICONS (SVG)
   ============================================ */
.animated-icon {
  width: 100%;
  height: 100%;
  display: block;
}

/* --- Benefit 1: Gears (Manual Work) --- */
.gear-group-1 {
  transform-origin: 28px 32px;
  /* Center of the large gear */
  animation: spin 8s linear infinite;
}

.gear-group-2 {
  transform-origin: 47px 48px;
  /* Center of the small gear */
  animation: spin-reverse 8s linear infinite;
}

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

  to {
    transform: rotate(360deg);
  }
}

@keyframes spin-reverse {
  from {
    transform: rotate(0deg);
  }

  to {
    transform: rotate(-360deg);
  }
}

/* --- Benefit 2: Rocket (Speed) --- */
.icon-rocket {
  overflow: visible;
}

.rocket-body,
.rocket-fin-left,
.rocket-fin-right,
.rocket-window {
  animation: rocket-hover 2s ease-in-out infinite alternate;
  transform-origin: center;
}

.rocket-flame {
  animation: flame-flicker 0.2s ease-in-out infinite alternate, rocket-hover 2s ease-in-out infinite alternate;
  transform-origin: center;
}

.speed-lines path {
  animation: speed-lines-dash 1s linear infinite;
  stroke-dasharray: 10;
  opacity: 0.5;
}

@keyframes rocket-hover {
  0% {
    transform: translateY(0);
  }

  100% {
    transform: translateY(-5px);
  }
}

@keyframes flame-flicker {
  0% {
    opacity: 0.6;
    transform: scaleY(0.9);
  }

  100% {
    opacity: 1;
    transform: scaleY(1.1);
  }
}

@keyframes speed-lines-dash {
  0% {
    transform: translateY(-10px);
    opacity: 0;
  }

  50% {
    opacity: 0.5;
  }

  100% {
    transform: translateY(20px);
    opacity: 0;
  }
}

/* --- Benefit 3: Precision (Target) --- */
.precision-middle {
  transform-origin: center;
  animation: spin 12s linear infinite;
}

.precision-center {
  animation: pulse-target 2s ease-in-out infinite;
  transform-origin: center;
}

.check-mark {
  stroke-dasharray: 40;
  stroke-dashoffset: 40;
  animation: draw-check 3s ease-in-out infinite;
}

@keyframes pulse-target {
  0% {
    transform: scale(1);
  }

  50% {
    transform: scale(1.2);
  }

  100% {
    transform: scale(1);
  }
}

@keyframes draw-check {

  0%,
  20% {
    stroke-dashoffset: 40;
    opacity: 0;
  }

  40%,
  80% {
    stroke-dashoffset: 0;
    opacity: 1;
  }

  100% {
    stroke-dashoffset: 0;
    opacity: 0;
  }
}