/* ============================================
   HYPERLOOPIE - Design System
   A disruptive product design brand
   ============================================ */

/* Import Premium Fonts */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=Manrope:wght@300;400;500;600;700&display=swap');

/* ============================================
   CSS Custom Properties - Design Tokens
   ============================================ */

:root {
  /* Color Palette - Minimal & Bold */
  --color-bg-primary: #0a0a0a;
  --color-bg-secondary: #141414;
  --color-bg-tertiary: #1a1a1a;

  --color-text-primary: #ffffff;
  --color-text-secondary: #a0a0a0;
  --color-text-tertiary: #707070;

  --color-accent-primary: #00ff88;
  --color-accent-secondary: #0088ff;
  --color-accent-gradient: linear-gradient(135deg, #00ff88 0%, #0088ff 100%);

  /* Typography */
  --font-display: 'Outfit', sans-serif;
  --font-body: 'Manrope', sans-serif;

  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.5rem;
  --font-size-2xl: 2rem;
  --font-size-3xl: 3rem;
  --font-size-4xl: 4rem;
  --font-size-5xl: 5rem;

  --font-weight-light: 300;
  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;
  --space-4xl: 8rem;

  /* Layout */
  --container-max-width: 1400px;
  --border-radius-sm: 0.5rem;
  --border-radius-md: 1rem;
  --border-radius-lg: 1.5rem;

  /* Animations */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55);

  /* Effects */
  --glass-bg: rgba(255, 255, 255, 0.05);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-blur: blur(20px);

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.3);
  --shadow-glow: 0 0 40px rgba(0, 255, 136, 0.3);
}

/* ============================================
   Base Styles & Reset
   ============================================ */

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

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

::selection {
  background-color: var(--color-accent-primary);
  color: var(--color-bg-primary);
}

/* ============================================
   Typography
   ============================================ */

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

h1 {
  font-size: clamp(2.5rem, 8vw, var(--font-size-5xl));
}

h2 {
  font-size: clamp(2rem, 6vw, var(--font-size-4xl));
}

h3 {
  font-size: clamp(1.5rem, 4vw, var(--font-size-3xl));
}

p {
  margin-bottom: var(--space-md);
  color: var(--color-text-secondary);
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-base);
}

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

/* ============================================
   Layout Components
   ============================================ */

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

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

section {
  padding: var(--space-4xl) 0;
  position: relative;
}

@media (max-width: 768px) {
  section {
    padding: var(--space-3xl) 0;
  }
}

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

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: var(--space-md) 0;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--glass-border);
  transition: all var(--transition-base);
}

.nav.scrolled {
  padding: var(--space-sm) 0;
  background: rgba(10, 10, 10, 0.95);
}

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

.nav-logo {
  font-family: var(--font-display);
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  background: var(--color-accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.03em;
}

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

.nav-links a {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  position: relative;
  padding-bottom: 0.25rem;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent-gradient);
  transition: width var(--transition-base);
}

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

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 0.375rem;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.nav-toggle span {
  width: 1.5rem;
  height: 2px;
  background: var(--color-text-primary);
  transition: all var(--transition-base);
}

@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    height: 100vh;
    width: 70%;
    max-width: 300px;
    background: var(--color-bg-secondary);
    flex-direction: column;
    padding: var(--space-4xl) var(--space-xl);
    gap: var(--space-lg);
    transition: right var(--transition-base);
    box-shadow: var(--shadow-lg);
  }

  .nav-links.active {
    right: 0;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(0.5rem, 0.5rem);
  }

  .nav-toggle.active span:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(0.5rem, -0.5rem);
  }
}

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

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding-top: var(--space-4xl);
}

.hero-background {
  position: absolute;
  inset: 0;
  opacity: 0.1;
  background:
    radial-gradient(circle at 20% 50%, var(--color-accent-primary) 0%, transparent 50%),
    radial-gradient(circle at 80% 50%, var(--color-accent-secondary) 0%, transparent 50%);
  filter: blur(100px);
  animation: pulse 8s ease-in-out infinite;
}

@keyframes pulse {

  0%,
  100% {
    opacity: 0.1;
  }

  50% {
    opacity: 0.2;
  }
}

.hero-content {
  text-align: center;
  position: relative;
  z-index: 1;
  max-width: 900px;
}

.hero-subtitle {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--color-accent-primary);
  margin-bottom: var(--space-md);
  opacity: 0;
  animation: fadeInUp 0.8s ease-out 0.2s forwards;
}

.hero-title {
  margin-bottom: var(--space-lg);
  opacity: 0;
  animation: fadeInUp 0.8s ease-out 0.4s forwards;
}

.hero-description {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xl);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  opacity: 0;
  animation: fadeInUp 0.8s ease-out 0.6s forwards;
}

.hero-cta {
  display: inline-flex;
  gap: var(--space-md);
  opacity: 0;
  animation: fadeInUp 0.8s ease-out 0.8s forwards;
}

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

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

/* ============================================
   Buttons
   ============================================ */

.btn {
  display: inline-block;
  padding: var(--space-md) var(--space-xl);
  font-family: var(--font-display);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  transition: all var(--transition-base);
  border: 2px solid transparent;
}

.btn-primary {
  background: var(--color-accent-gradient);
  color: var(--color-bg-primary);
  box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 60px rgba(0, 255, 136, 0.5);
}

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

.btn-secondary:hover {
  background: var(--color-text-primary);
  color: var(--color-bg-primary);
  transform: translateY(-2px);
}

/* ============================================
   Products Section
   ============================================ */

.products {
  background: var(--color-bg-secondary);
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-3xl);
}

.section-subtitle {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--color-accent-primary);
  margin-bottom: var(--space-sm);
}

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

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

.product-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-lg);
  padding: var(--space-xl);
  backdrop-filter: var(--glass-blur);
  transition: transform 0.15s ease-out, box-shadow 0.15s ease-out, border-color 0.15s ease-out;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  will-change: transform;
}

.product-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--color-accent-gradient);
  opacity: 0;
  transition: opacity 0.15s ease-out;
}

.product-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-accent-primary);
}

.product-card:hover::before {
  opacity: 0.05;
}

.product-card-content {
  position: relative;
  z-index: 1;
}

.product-icon {
  width: 60px;
  height: 60px;
  background: var(--color-accent-gradient);
  border-radius: var(--border-radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-2xl);
  margin-bottom: var(--space-lg);
}

.product-title {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-sm);
}

.product-description {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-md);
}

.product-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-accent-primary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.product-link::after {
  content: '→';
  transition: transform 0.15s ease-out;
}

.product-card:hover .product-link::after {
  transform: translateX(4px);
}

/* ============================================
   Philosophy Section
   ============================================ */

.philosophy {
  background: var(--color-bg-primary);
}

.philosophy-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
}

@media (max-width: 968px) {
  .philosophy-content {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }
}

.philosophy-text h2 {
  margin-bottom: var(--space-lg);
}

.philosophy-text p {
  font-size: var(--font-size-lg);
  line-height: 1.8;
  margin-bottom: var(--space-lg);
}

.philosophy-highlight {
  background: var(--glass-bg);
  border-left: 4px solid var(--color-accent-primary);
  padding: var(--space-lg);
  border-radius: var(--border-radius-sm);
  margin-top: var(--space-xl);
}

.philosophy-highlight p {
  font-size: var(--font-size-base);
  font-style: italic;
  margin-bottom: 0;
  color: var(--color-text-primary);
}

.philosophy-visual {
  position: relative;
  aspect-ratio: 1;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.philosophy-visual::before {
  content: '';
  position: absolute;
  inset: 20%;
  background: var(--color-accent-gradient);
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.3;
  animation: rotate 20s linear infinite;
}

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

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

.philosophy-visual-text {
  position: relative;
  z-index: 1;
  font-family: var(--font-display);
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  text-align: center;
  background: var(--color-accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

.contact {
  background: var(--color-bg-primary);
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-xl);
  margin-top: var(--space-3xl);
}

.contact-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-lg);
  padding: var(--space-xl);
  backdrop-filter: var(--glass-blur);
  text-align: center;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.contact-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--color-accent-gradient);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.contact-card:hover {
  transform: translateY(-8px);
  border-color: var(--color-accent-primary);
  box-shadow: var(--shadow-lg);
}

.contact-card:hover::before {
  opacity: 0.05;
}

.contact-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--space-lg);
  background: var(--color-accent-gradient);
  border-radius: var(--border-radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: 1;
}

.contact-icon svg {
  color: var(--color-bg-primary);
}

.contact-title {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-sm);
  position: relative;
  z-index: 1;
}

.contact-info {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-md);
  line-height: 1.8;
  position: relative;
  z-index: 1;
}

.contact-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-accent-primary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  position: relative;
  z-index: 1;
  transition: all var(--transition-base);
}

.contact-link::after {
  content: '→';
  transition: transform var(--transition-base);
}

.contact-card:hover .contact-link::after {
  transform: translateX(4px);
}

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

.footer {
  background: var(--color-bg-secondary);
  padding: var(--space-3xl) 0 var(--space-lg);
  border-top: 1px solid var(--glass-border);
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-3xl);
  margin-bottom: var(--space-3xl);
}

@media (max-width: 968px) {
  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }
}

.footer-brand h3 {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--space-sm);
}

.footer-brand p {
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-lg);
}

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

.footer-parent strong {
  color: var(--color-accent-primary);
}

.footer-section h4 {
  font-size: var(--font-size-base);
  margin-bottom: var(--space-md);
  color: var(--color-text-primary);
}

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

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

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

.footer-bottom {
  padding-top: var(--space-lg);
  border-top: 1px solid var(--glass-border);
  text-align: center;
  color: var(--color-text-tertiary);
  font-size: var(--font-size-sm);
}

/* ============================================
   Utility Classes
   ============================================ */

.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: all var(--transition-slow);
}

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

.text-gradient {
  background: var(--color-accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}