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

html {
  scroll-behavior: smooth;
}

:root {
  --accent: #00FFB3;
  --accent-muted: rgba(0, 255, 179, 0.2);
  --accent-glow: rgba(0, 255, 179, 0.3);
  --bg: #000000;
  --card-bg: rgba(17, 24, 39, 0.4);
  --card-border: rgba(75, 85, 99, 0.3);
  --text-primary: #ffffff;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;
  
  --font-main: 'Exo 2', sans-serif;
  --font-display: 'Orbitron', sans-serif;
  --font-accent: 'Russo One', sans-serif;
}

body {
  background-color: var(--bg);
  color: var(--text-primary);
  font-family: var(--font-main);
  font-weight: 500;
  line-height: 1.5;
  font-size: 0.95rem;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Background & Overlays */
.bg-animation {
  position: fixed;
  inset: 0;
  z-index: -2;
  opacity: 0.4;
}

.grid-overlay {
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image: 
    linear-gradient(rgba(0, 255, 179, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 255, 179, 0.03) 1px, transparent 1px);
  background-size: 50px 50px;
  pointer-events: none;
}

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0, 255, 179, 0.1);
}

.header-wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 60px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.brand-mark {
  width: 28px;
  height: 28px;
  filter: drop-shadow(0 0 8px var(--accent-glow));
}

.brand-name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: 0.1em;
  color: var(--text-primary);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.lang-btn {
  background: transparent;
  border: 1px solid var(--accent-muted);
  color: var(--accent);
  padding: 0.4rem 0.8rem;
  border-radius: 8px;
  font-family: var(--font-display);
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
}

.lang-btn:hover {
  background: var(--accent-muted);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  font-family: var(--font-display);
  font-weight: 500;
  text-decoration: none;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
  border: none;
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--accent);
  color: #000;
  box-shadow: 0 4px 20px var(--accent-glow);
}

.btn-primary:hover {
  background-color: #00d9a0;
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0, 255, 179, 0.5);
}

.btn-primary:disabled {
  background-color: var(--card-border);
  color: var(--text-muted);
  cursor: not-allowed;
  box-shadow: none;
  transform: none;
}

.btn-primary:disabled:hover {
  background-color: var(--card-border);
  transform: none;
}

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

.btn-outline:hover {
  background: var(--accent-muted);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.8rem;
  border-radius: 10px;
}

.btn-lg {
  padding: 0.8rem 1.8rem;
  font-size: 0.9rem;
  border-radius: 12px;
}

/* Hero Section */
.hero {
  position: relative;
  min-h: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 160px 0 100px;
  overflow: hidden;
}

.hero-content {
  text-align: center;
  position: relative;
  z-index: 10;
}

.hero-logo {
  position: relative;
  display: inline-block;
  margin-bottom: 2rem;
}

.hero-logo img {
  height: 140px;
  position: relative;
  z-index: 2;
}

.logo-glow {
  position: absolute;
  inset: 0;
  background: var(--accent);
  filter: blur(60px);
  opacity: 0.3;
  transform: scale(0.8);
  z-index: 1;
}

.hero-title {
  font-family: var(--font-display);
  font-size: 3.5rem;
  font-weight: 900;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
  background: linear-gradient(90deg, var(--accent), #00d9a0, var(--accent));
  background-size: 200% auto;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: shine 4s linear infinite;
}

@keyframes shine {
  to { background-position: 200% center; }
}

.hero-tagline {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: #f3f4f6;
  margin-bottom: 0.5rem;
}

.hero-description {
  font-size: 1rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 2rem;
  line-height: 1.6;
}

.hero-cta {
  display: flex;
  gap: 1rem;
  justify-content: center;
  margin-bottom: 3rem;
}

.tech-badges {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.tech-badge {
  background: rgba(17, 24, 39, 0.5);
  backdrop-filter: blur(4px);
  border: 1px solid var(--card-border);
  border-radius: 10px;
  padding: 0.75rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.badge-label {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.badge-value {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--accent);
}

.corner-accent {
  position: absolute;
  width: 256px;
  height: 256px;
  border-style: solid;
  border-color: rgba(0, 255, 179, 0.2);
  pointer-events: none;
}

.corner-accent.tl {
  top: 0;
  left: 0;
  border-width: 2px 0 0 2px;
  border-top-left-radius: 32px;
}

.corner-accent.br {
  bottom: 0;
  right: 0;
  border-width: 0 2px 2px 0;
  border-bottom-right-radius: 32px;
}

/* Section Header */
.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-title {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1rem;
}

.accent-text {
  color: var(--accent);
}

.section-subtitle {
  font-size: 1rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* Features Section */
.features-section {
  padding: 60px 0;
  position: relative;
}

.features-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0, 255, 179, 0.5), transparent);
}

/* Advantages Section Integration */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.25rem;
  max-width: 1000px;
  margin: 0 auto;
}

.feature-card {
  background: var(--card-bg);
  backdrop-filter: blur(12px);
  border: 1px solid var(--card-border);
  border-radius: 20px;
  padding: 1.25rem;
  position: relative;
  overflow: hidden;
  transition: all 0.3s ease;
  min-height: auto;
}

.feature-card:hover {
  border-color: rgba(0, 255, 179, 0.5);
  transform: translateY(-5px);
}

.feature-icon {
  width: 40px;
  height: 40px;
  background: var(--accent-muted);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  margin-bottom: 0.75rem;
  transition: all 0.3s ease;
}

.feature-card:hover .feature-icon {
  background: rgba(0, 255, 179, 0.25);
}

.feature-icon svg {
  width: 20px;
  height: 20px;
}

.feature-name {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.feature-desc {
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-weight: 500;
  line-height: 1.4;
}

.stat-card {
  border-color: var(--accent-muted);
  background: rgba(0, 255, 179, 0.03);
}

.stat-card .feature-desc {
  color: var(--accent);
  font-size: 1rem;
  font-weight: 700;
}

.card-glow {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top left, rgba(0, 255, 179, 0.1), transparent 70%);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.feature-card:hover .card-glow {
  opacity: 1;
}

/* Download Section Split Layout */
.download-container {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 3rem;
  align-items: center;
  max-width: 1000px;
  margin: 0 auto;
}

.download-left {
  position: relative;
}

.app-showcase {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.showcase-img {
  border-radius: 20px;
  border: 3px solid rgba(0, 255, 179, 0.1);
  box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.7);
  transition: transform 0.5s ease;
}

.mobile-img {
  width: 130px;
  z-index: 2;
  transform: translateX(20px) rotate(-5deg);
}

.desktop-img {
  width: 130px;
  z-index: 1;
  transform: translateX(-20px) translateY(10px) rotate(5deg);
}

.app-showcase:hover .mobile-img {
  transform: translateX(10px) rotate(0deg);
}

.app-showcase:hover .desktop-img {
  transform: translateX(-10px) translateY(5px) rotate(0deg);
}

.download-right {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.platform-card.compact {
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.25rem;
  background: var(--card-bg);
  backdrop-filter: blur(12px);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  transition: all 0.3s ease;
}

.platform-card.compact:hover {
  border-color: rgba(0, 255, 179, 0.4);
  transform: translateX(5px);
}

.platform-info {
  flex: 1;
}

.platform-name {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.15rem;
}

.platform-desc {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.btn-download {
  padding: 0.5rem 1rem;
  font-size: 0.8rem;
  min-width: 100px;
}

/* Footer */
.site-footer {
  padding: 4rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  position: relative;
  overflow: hidden;
}

.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 400px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
}

.footer-wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 2rem;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.footer-brand img {
  height: 48px;
}

.footer-name {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--text-primary);
}

.footer-url {
  color: var(--accent);
  font-weight: 500;
  font-size: 0.9rem;
}

.footer-copy {
  text-align: right;
}

.copy-text {
  color: var(--text-secondary);
  margin-bottom: 0.25rem;
}

.footer-motto {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Responsive */
@media (max-width: 1024px) {
  .hero-title { font-size: 3rem; }
  .section-title { font-size: 2.2rem; }
}

@media (max-width: 768px) {
  .hero-title { font-size: 2.5rem; }
  .hero-tagline { font-size: 1.25rem; }
  .section-title { font-size: 2rem; }
  
  .download-container {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  
  .download-left {
    order: 1;
  }
  
  .download-right {
    order: 2;
  }
  
  .platform-card.compact {
    flex-direction: column;
    text-align: center;
    gap: 1rem;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-wrap {
    flex-direction: column;
    text-align: center;
  }
  
  .footer-copy {
    text-align: center;
  }
}