/* Root variables for consistent styling */
:root {
  /* Color palette */
  --bg-primary: #0a0a0f;
  --bg-secondary: #111118;
  --bg-tertiary: #1a1a24;
  --surface: #1e1e2e;
  --surface-hover: #252538;
  --text-primary: #ffffff;
  --text-secondary: #b4b4c8;
  --text-muted: #6b6b7d;
  --accent-primary: #00d4ff;
  --accent-secondary: #7c3aed;
  --accent-tertiary: #f59e0b;
  --gradient-primary: linear-gradient(135deg, #00d4ff 0%, #7c3aed 100%);
  --gradient-secondary: linear-gradient(135deg, #7c3aed 0%, #f59e0b 100%);
  --gradient-bg: linear-gradient(135deg, #0a0a0f 0%, #111118 50%, #1a1a24 100%);
  --border-color: rgba(255, 255, 255, 0.1);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 16px 64px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 32px rgba(0, 212, 255, 0.3);
  
  
  /* Spacing & sizing */
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Typography */
  --font-primary: "Inter", sans-serif;
  --font-heading: "Playfair Display", serif;
  --font-mono: "JetBrains Mono", monospace;
}

/* Reset and base styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

/* Animated background with gradient orbs */
.background-animation {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  overflow: hidden;
}

.gradient-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.6;
}

.orb-1 {
  width: 400px;
  height: 400px;
  background: var(--gradient-primary);
  top: 10%;
  left: 10%;
  animation: float 15s ease-in-out infinite;
}

.orb-2 {
  width: 300px;
  height: 300px;
  background: var(--gradient-secondary);
  bottom: 10%;
  right: 10%;
  animation: float 12s ease-in-out infinite;
}

.orb-3 {
  width: 200px;
  height: 200px;
  background: var(--gradient-primary);
  top: 50%;
  left: 50%;
  animation: float 18s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0); }
  25% { transform: translate(-20px, -20px); }
  50% { transform: translate(20px, 20px); }
  75% { transform: translate(20px, -20px); }
}

/* Navigation */
.main-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(10, 10, 15, 0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  transition: var(--transition);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2rem;
  max-width: 1400px;
  margin: 0 auto;
}

.nav-logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--accent-primary);
  text-decoration: none;
  font-family: var(--font-heading);
}

.nav-links {
  display: flex;
  gap: 2rem;
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
  position: relative;
}

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

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-primary);
  transition: var(--transition);
}

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

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Section styling */
section {
  padding: 6rem 0;
  position: relative;
}

/* Section titles */
.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  margin-bottom: 1rem;
  line-height: 1.2;
  font-family: var(--font-heading);
  text-align: center;
}

/* Section subtitles */
.section-subtitle {
  text-align: center;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 2rem auto;
  line-height: 1.6;
}

/* Buttons */
.cta-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 1rem 2rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  font-size: 1rem;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  text-decoration: none;
  position: relative;
  overflow: hidden;
  margin: 0.5rem;
}

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

.secondary {
  background: transparent;
  color: var(--accent-primary);
  border: 2px solid var(--accent-primary);
}

.cta-button:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
}

/* Feature cards */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.feature-card {
  background: #000000 !important;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  text-align: center;
}

.feature-card:hover {
  transform: translateY(-8px);
  background: #000000 !important;
  box-shadow: var(--shadow-lg);
}

.feature-icon {
  width: 3rem;
  height: 3rem;
  border-radius: var(--radius-sm);
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin: 0 auto 1.5rem auto;
  box-shadow: var(--shadow-glow);
}

.feature-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-primary);
  text-align: center;
}

.feature-description {
  color: var(--text-secondary);
  line-height: 1.6;
  text-align: center;
  max-width: 500px;
  margin: 0 auto 1.5rem auto;
}

/* Code blocks */
.code-block {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2rem;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  line-height: 1.6;
  overflow-x: auto;
  position: relative;
  margin: 2rem 0;
}

.code-line {
  display: block;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.code-comment {
  color: var(--text-muted);
}

.code-keyword {
  color: var(--accent-secondary);
}

.code-string {
  color: var(--accent-tertiary);
}

/* Stats display */
.hero-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1.5rem;
  margin-top: 3rem;
}

.stat {
  text-align: center;
  padding: 1rem;
}

.stat-number {
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent-primary);
  display: block;
  margin-bottom: 0.5rem;
}

.stat-label {
  color: var(--text-muted);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  text-align: center;
}

/* Coming soon card */
.coming-soon-card {
  background: #000000 !important;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 3rem;
  text-align: center;
  margin: 2rem 0;
}

.coming-soon-title {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-primary);
  text-align: center;
}

/* Highlight features */
.highlight-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-top: 2rem;
}

.feature-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem;
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-sm);
  transition: var(--transition);
  text-align: center;
}

.feature-item:hover {
  transform: translateY(-3px);
  background: rgba(255, 255, 255, 0.1);
}

.feature-icon {
  font-size: 1.5rem;
}

/* Text gradients */
.text-gradient {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

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

/* Creative elements for multipersonality websites */

/* Personality cards */
.personality-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.personality-card {
  background: #000000 !important;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  text-align: center;
}

.personality-card:hover {
  transform: translateY(-8px);
  background: #000000 !important;
  box-shadow: var(--shadow-lg);
}

.personality-icon {
  width: 4rem;
  height: 4rem;
  border-radius: 50%;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin: 0 auto 1.5rem auto;
  box-shadow: var(--shadow-glow);
}

.personality-title {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-primary);
  text-align: center;
  font-family: var(--font-heading);
}

.personality-description {
  color: var(--text-secondary);
  line-height: 1.6;
  text-align: center;
  margin: 0 auto 1.5rem auto;
}

/* Interactive demo section */
.interactive-demo {
  background: #000000 !important;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2rem;
  margin: 3rem 0;
  box-shadow: var(--shadow-md);
}

.view-toggle-container {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 2rem;
}

.view-toggle {
  padding: 0.8rem 1.5rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.view-toggle:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--accent-primary);
}

.view-toggle.active {
  background: var(--gradient-primary);
  color: white;
  box-shadow: var(--shadow-glow);
}

.content-view {
  display: none;
}

.content-view.active {
  display: block;
  animation: fadeIn 0.5s ease-in-out;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Benefits grid */
.benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.benefit-card {
  background: #000000 !important;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  transition: var(--transition);
}

.benefit-card:hover {
  transform: translateY(-5px);
  background: #000000 !important;
  box-shadow: var(--shadow-md);
}

.benefit-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.benefit-list {
  list-style-type: none;
  padding: 0;
  margin: 0;
}

.benefit-list li {
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
  padding-left: 1.5rem;
  position: relative;
}

.benefit-list li::before {
  content: "✓";
  color: var(--accent-primary);
  position: absolute;
  left: 0;
}

/* Tech stack grid */
.tech-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.tech-card {
  background: #000000 !important;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 2rem;
  text-align: center;
  transition: var(--transition);
}

.tech-card:hover {
  transform: translateY(-5px);
  background: #000000 !important;
  box-shadow: var(--shadow-md);
}

.tech-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.tech-description {
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Future展望 grid */
.future-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.future-card {
  background: #000000 !important;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 2rem;
  transition: var(--transition);
}

.future-card:hover {
  transform: translateY(-5px);
  background: #000000 !important;
  box-shadow: var(--shadow-md);
}

.future-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.future-list {
  list-style-type: none;
  padding: 0;
  margin: 0;
}

.future-list li {
  color: var(--text-secondary);
  margin-bottom: 0.7rem;
  padding-left: 1.5rem;
  position: relative;
}

.future-list li::before {
  content: "▸";
  color: var(--accent-primary);
  position: absolute;
  left: 0;
}

/* Special cards with gradient borders */
.gradient-border-card {
  position: relative;
  background: #000000 !important;
  border-radius: var(--radius-lg);
  padding: 2rem;
  margin: 2rem 0;
}

.gradient-border-card::before {
  content: '';
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  background: var(--gradient-primary);
  border-radius: var(--radius-lg);
  z-index: -1;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.gradient-border-card:hover::before {
  opacity: 0.3;
}

/* Hero section enhancements */
.hero-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 2rem 0;
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  margin-bottom: 1.5rem;
  line-height: 1.2;
  font-family: var(--font-heading);
}

.hero-subtitle {
  font-size: clamp(1.2rem, 2vw, 1.5rem);
  color: var(--text-secondary);
  max-width: 700px;
  margin: 0 auto 2rem auto;
  line-height: 1.7;
}

/* Feature image styling */
.feature-image {
  max-width: 450px;
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  margin: 0 auto 1.5rem auto;
  display: block;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
}

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

/* Footer specific styles */
.main-footer .section-title {
  font-size: clamp(1.2rem, 2.5vw, 1.8rem);
  margin-bottom: 0.5rem;
}

/* Responsive design */
@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  
  .container {
    padding: 0 1rem;
  }
  
  section {
    padding: 3rem 0;
  }
  
  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .personality-grid {
    grid-template-columns: 1fr;
  }
  
  .benefits-grid {
    grid-template-columns: 1fr;
  }
  
  .tech-grid {
    grid-template-columns: 1fr;
  }
  
  .future-grid {
    grid-template-columns: 1fr;
  }
  
  .feature-image {
    max-width: 360px;
  }
}