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

:root {
  --bg-deep: #06060e;
  --bg-primary: #0a0a1a;
  --bg-card: rgba(14, 18, 40, 0.7);
  --accent-cyan: #00e5ff;
  --accent-blue: #2979ff;
  --accent-purple: #7c4dff;
  --text-primary: #e8eaed;
  --text-secondary: #9aa0b4;
  --border-glow: rgba(0, 229, 255, 0.15);
  --glass-bg: rgba(255, 255, 255, 0.03);
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-deep);
  color: var(--text-primary);
  overflow-x: hidden;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

#particle-canvas {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 0;
  pointer-events: none;
}

/* ─── Navigation ─── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 0 6%;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  background: rgba(6, 6, 14, 0.65);
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  transition: all 0.4s ease;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.nav-logo-icon {
  width: 38px; height: 38px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Orbitron', sans-serif;
  font-weight: 900;
  font-size: 18px;
  color: #fff;
  box-shadow: 0 0 24px rgba(0, 229, 255, 0.3);
}

.nav-logo-text {
  font-family: 'Orbitron', sans-serif;
  font-weight: 700;
  font-size: 18px;
  letter-spacing: 2px;
  background: linear-gradient(135deg, #e0e0e0, #ffffff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-links {
  display: flex;
  gap: 36px;
  list-style: none;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 1px;
  transition: color 0.3s;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  width: 0; height: 1.5px;
  background: var(--accent-cyan);
  transition: width 0.3s ease;
}

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

/* ─── Hero Section ─── */
.hero {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 120px 6% 80px;
}

.hero-content { max-width: 840px; }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  border-radius: 32px;
  border: 1px solid rgba(0, 229, 255, 0.25);
  background: rgba(0, 229, 255, 0.06);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 2px;
  color: var(--accent-cyan);
  margin-bottom: 40px;
  animation: fadeInUp 0.8s ease both;
}

.hero-badge-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--accent-cyan);
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0%, 100% { box-shadow: 0 0 6px var(--accent-cyan); }
  50% { box-shadow: 0 0 20px var(--accent-cyan), 0 0 40px var(--accent-cyan); }
}

.hero-title {
  font-family: 'Orbitron', sans-serif;
  font-weight: 900;
  font-size: clamp(42px, 7vw, 76px);
  line-height: 1.15;
  letter-spacing: 3px;
  margin-bottom: 28px;
  animation: fadeInUp 0.8s 0.15s ease both;
}

.hero-title .gradient-text {
  background: linear-gradient(135deg, #00e5ff 0%, #2979ff 40%, #7c4dff 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: clamp(16px, 2vw, 20px);
  color: var(--text-secondary);
  font-weight: 300;
  letter-spacing: 1.5px;
  line-height: 1.8;
  margin-bottom: 48px;
  animation: fadeInUp 0.8s 0.3s ease both;
}

.hero-actions {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeInUp 0.8s 0.45s ease both;
}

.btn-primary {
  padding: 16px 40px;
  border-radius: 30px;
  border: none;
  background: linear-gradient(135deg, #00e5ff, #2979ff);
  color: #06060e;
  font-family: 'Noto Sans SC', sans-serif;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 1.5px;
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 40px rgba(0, 229, 255, 0.35);
}

.btn-outline {
  padding: 16px 40px;
  border-radius: 30px;
  border: 1.5px solid rgba(255, 255, 255, 0.2);
  background: transparent;
  color: #fff;
  font-family: 'Noto Sans SC', sans-serif;
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 1.5px;
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
}

.btn-outline:hover {
  border-color: rgba(0, 229, 255, 0.6);
  background: rgba(0, 229, 255, 0.06);
}

/* ─── Scroll Indicator ─── */
.scroll-indicator {
  position: absolute;
  bottom: 48px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  animation: fadeInUp 0.8s 0.7s ease both;
}

.scroll-indicator span {
  font-size: 11px;
  letter-spacing: 2px;
  color: var(--text-secondary);
  text-transform: uppercase;
}

.scroll-mouse {
  width: 22px; height: 34px;
  border: 2px solid rgba(255, 255, 255, 0.2);
  border-radius: 12px;
  position: relative;
}

.scroll-mouse::after {
  content: '';
  position: absolute;
  top: 6px; left: 50%;
  transform: translateX(-50%);
  width: 3px; height: 8px;
  border-radius: 2px;
  background: var(--accent-cyan);
  animation: scroll-wheel 1.6s infinite;
}

@keyframes scroll-wheel {
  0% { top: 6px; opacity: 1; }
  100% { top: 18px; opacity: 0; }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ─── Services Section ─── */
.services {
  position: relative;
  z-index: 1;
  padding: 100px 6% 120px;
  max-width: 1300px;
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: 80px;
}

.section-label {
  font-family: 'Orbitron', sans-serif;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 4px;
  color: var(--accent-cyan);
  text-transform: uppercase;
  margin-bottom: 20px;
}

.section-title {
  font-family: 'Orbitron', sans-serif;
  font-weight: 800;
  font-size: clamp(28px, 4vw, 44px);
  letter-spacing: 2px;
  margin-bottom: 16px;
  line-height: 1.3;
}

.section-desc {
  color: var(--text-secondary);
  font-size: 16px;
  font-weight: 300;
  letter-spacing: 1px;
  max-width: 600px;
  margin: 0 auto;
}

/* ─── Service Cards ─── */
.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 28px;
}

.service-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 20px;
  padding: 44px 36px 36px;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  overflow: hidden;
  cursor: pointer;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  border-radius: 20px;
  background: radial-gradient(600px circle at var(--mouse-x, 50%) var(--mouse-y, 50%),
    rgba(0, 229, 255, 0.06),
    transparent 40%);
  opacity: 0;
  transition: opacity 0.4s;
}

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

.service-card:hover {
  transform: translateY(-6px);
  border-color: rgba(0, 229, 255, 0.25);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4), 0 0 40px rgba(0, 229, 255, 0.06);
}

.service-icon {
  width: 64px; height: 64px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 28px;
  position: relative;
  z-index: 1;
}

.service-icon svg { width: 32px; height: 32px; }

.service-card:nth-child(1) .service-icon { background: linear-gradient(135deg, rgba(0,229,255,0.2), rgba(0,229,255,0.05)); }
.service-card:nth-child(2) .service-icon { background: linear-gradient(135deg, rgba(124,77,255,0.2), rgba(124,77,255,0.05)); }
.service-card:nth-child(3) .service-icon { background: linear-gradient(135deg, rgba(0,230,118,0.2), rgba(0,230,118,0.05)); }
.service-card:nth-child(4) .service-icon { background: linear-gradient(135deg, rgba(255,145,0,0.2), rgba(255,145,0,0.05)); }
.service-card:nth-child(5) .service-icon { background: linear-gradient(135deg, rgba(41,121,255,0.2), rgba(41,121,255,0.05)); }

.service-card h3 {
  font-family: 'Orbitron', sans-serif;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 1.5px;
  margin-bottom: 14px;
  position: relative;
  z-index: 1;
}

.service-card p {
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 300;
  line-height: 1.8;
  letter-spacing: 0.5px;
  position: relative;
  z-index: 1;
}

.service-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: 16px;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 1px;
  margin-top: 20px;
  position: relative;
  z-index: 1;
}

.service-card:nth-child(1) .service-tag { color: #00e5ff; background: rgba(0,229,255,0.1); }
.service-card:nth-child(2) .service-tag { color: #b388ff; background: rgba(124,77,255,0.1); }
.service-card:nth-child(3) .service-tag { color: #69f0ae; background: rgba(0,230,118,0.1); }
.service-card:nth-child(4) .service-tag { color: #ffab40; background: rgba(255,145,0,0.1); }
.service-card:nth-child(5) .service-tag { color: #82b1ff; background: rgba(41,121,255,0.1); }

/* ─── Stats Section ─── */
.stats {
  position: relative;
  z-index: 1;
  padding: 80px 6%;
  max-width: 1100px;
  margin: 0 auto;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  text-align: center;
}

.stat-item {
  padding: 20px;
}

.stat-number {
  font-family: 'Orbitron', sans-serif;
  font-weight: 900;
  font-size: clamp(32px, 5vw, 48px);
  background: linear-gradient(135deg, #00e5ff, #2979ff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 8px;
}

.stat-label {
  font-size: 13px;
  color: var(--text-secondary);
  letter-spacing: 1.5px;
  font-weight: 400;
}

.stat-divider {
  width: 1px;
  background: linear-gradient(180deg, transparent, rgba(255,255,255,0.1), transparent);
}

/* ─── Features / How it works ─── */
.features {
  position: relative;
  z-index: 1;
  padding: 100px 6% 120px;
  max-width: 1300px;
  margin: 0 auto;
}

.feature-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  margin-bottom: 100px;
}

.feature-row:last-child { margin-bottom: 0; }

.feature-visual {
  position: relative;
  height: 360px;
  border-radius: 24px;
  background: var(--bg-card);
  border: 1px solid rgba(255, 255, 255, 0.05);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.feature-visual-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.5;
  transition: opacity 0.6s;
}

.feature-row:hover .feature-visual-img { opacity: 0.65; }

.feature-visual-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.feature-visual-icon {
  width: 80px; height: 80px;
  border-radius: 20px;
  background: rgba(0, 229, 255, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
}

.feature-visual-icon svg { width: 40px; height: 40px; }

.feature-text h3 {
  font-family: 'Orbitron', sans-serif;
  font-size: 24px;
  font-weight: 700;
  letter-spacing: 1.5px;
  margin-bottom: 16px;
}

.feature-text p {
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.9;
  font-weight: 300;
}

.feature-list {
  list-style: none;
  margin-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.feature-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  color: #ccc;
}

.feature-list li::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent-cyan);
  box-shadow: 0 0 8px var(--accent-cyan);
  flex-shrink: 0;
}

/* ─── CTA Section ─── */
.cta-section {
  position: relative;
  z-index: 1;
  padding: 100px 6%;
  text-align: center;
}

.cta-card {
  max-width: 800px;
  margin: 0 auto;
  padding: 64px 48px;
  border-radius: 28px;
  background: linear-gradient(135deg, rgba(0,229,255,0.06), rgba(124,77,255,0.06));
  border: 1px solid rgba(255, 255, 255, 0.08);
  position: relative;
  overflow: hidden;
}

.cta-card::before {
  content: '';
  position: absolute;
  top: -50%; left: -50%;
  width: 200%; height: 200%;
  background: radial-gradient(ellipse at center, rgba(0,229,255,0.04) 0%, transparent 70%);
  animation: cta-glow 6s ease-in-out infinite;
}

@keyframes cta-glow {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(5%, 3%); }
}

.cta-card h2 {
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(24px, 4vw, 36px);
  font-weight: 800;
  letter-spacing: 2px;
  margin-bottom: 16px;
  position: relative;
  z-index: 1;
}

.cta-card p {
  color: var(--text-secondary);
  font-size: 16px;
  margin-bottom: 36px;
  position: relative;
  z-index: 1;
}

.cta-card .btn-primary {
  position: relative;
  z-index: 1;
}

/* ─── Footer ─── */
.footer {
  position: relative;
  z-index: 1;
  padding: 60px 6% 40px;
  border-top: 1px solid rgba(255, 255, 255, 0.04);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 24px;
}

.footer-info p {
  color: var(--text-secondary);
  font-size: 13px;
  letter-spacing: 0.5px;
}

.footer-links {
  display: flex;
  gap: 32px;
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 13px;
  transition: color 0.3s;
}

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

/* ─── Responsive ─── */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .service-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stat-divider { display: none; }
  .feature-row { grid-template-columns: 1fr; gap: 40px; }
  .feature-row:nth-child(even) .feature-visual { order: -1; }
  .hero-title { font-size: 36px; }
  .footer { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
  .hero-actions { flex-direction: column; align-items: center; }
  .stats-grid { grid-template-columns: 1fr; }
  .service-card { padding: 32px 24px 28px; }
}