@charset "UTF-8";

@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@300;400;500;700;900&display=swap');

:root {
  --primary-dark: #0a0e27;
  --secondary-dark: #111538;
  --tertiary-dark: #1a1f4a;
  --accent-blue: #00d4ff;
  --accent-cyan: #00f5d4;
  --text-primary: #ffffff;
  --text-secondary: #a8b2d1;
  --glass-bg: rgba(10, 14, 39, 0.6);
  --glass-border: rgba(0, 212, 255, 0.2);
  --gradient-primary: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
  --gradient-dark: linear-gradient(180deg, var(--primary-dark), var(--secondary-dark));
  --shadow-sm: 0 2px 10px rgba(0, 212, 255, 0.1);
  --shadow-md: 0 8px 30px rgba(0, 212, 255, 0.15);
  --shadow-lg: 0 20px 60px rgba(0, 212, 255, 0.2);
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.6s ease;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--primary-dark);
  color: var(--text-primary);
  line-height: 1.7;
  font-weight: 400;
  overflow-x: hidden;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

section {
  padding: 100px 0;
}

.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.fade-in-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.fade-in-right {
  opacity: 0;
  transform: translateX(50px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-title {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 15px;
}

.section-divider {
  width: 80px;
  height: 3px;
  background: var(--gradient-primary);
  margin: 0 auto 15px;
  border-radius: 2px;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  font-weight: 300;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: transparent;
  transition: background var(--transition-base), backdrop-filter var(--transition-base), box-shadow var(--transition-base);
}

.navbar.scrolled {
  background: rgba(10, 14, 39, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.nav-logo a {
  font-size: 1.6rem;
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-decoration: none;
  transition: transform var(--transition-fast);
}

.nav-logo a:hover {
  transform: scale(1.05);
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 10px;
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  padding: 10px 20px;
  border-radius: 8px;
  font-weight: 500;
  font-size: 0.95rem;
  transition: color var(--transition-fast), background var(--transition-fast), transform var(--transition-fast);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 5px;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: 60%;
  height: 2px;
  background: var(--gradient-primary);
  border-radius: 1px;
  transition: transform var(--transition-base);
}

.nav-link:hover,
.nav-link.active {
  color: var(--accent-blue);
  background: rgba(0, 212, 255, 0.1);
}

.nav-link:hover::after,
.nav-link.active::after {
  transform: translateX(-50%) scaleX(1);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 6px;
  padding: 5px;
}

.bar {
  width: 28px;
  height: 2px;
  background: var(--accent-blue);
  border-radius: 2px;
  transition: all var(--transition-fast);
}

.navbar.scrolled .nav-toggle .bar {
  background: var(--text-primary);
}

.nav-toggle.open .bar:nth-child(1) {
  transform: rotate(45deg) translate(5px, 6px);
}

.nav-toggle.open .bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle.open .bar:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -6px);
}

.nav-icp {
  text-align: center;
  padding: 5px 0;
  background: rgba(0, 0, 0, 0.3);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.nav-icp span {
  font-size: 0.75rem;
  color: var(--text-secondary);
  opacity: 0.7;
}

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: 
    radial-gradient(ellipse at 20% 50%, rgba(0, 212, 255, 0.15) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(0, 245, 212, 0.1) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 80%, rgba(0, 212, 255, 0.08) 0%, transparent 60%),
    var(--primary-dark);
  animation: heroGradient 15s ease infinite alternate;
}

@keyframes heroGradient {
  0% { background-position: 0% 0%, 100% 50%, 50% 100%; }
  100% { background-position: 100% 50%, 50% 0%, 0% 50%; }
}

.hero-particles {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(2px 2px at 20px 30px, var(--accent-blue) 50%, transparent 50%),
    radial-gradient(2px 2px at 40px 70px, var(--accent-cyan) 50%, transparent 50%),
    radial-gradient(1px 1px at 90px 40px, var(--accent-blue) 50%, transparent 50%),
    radial-gradient(1px 1px at 130px 80px, var(--accent-cyan) 50%, transparent 50%),
    radial-gradient(2px 2px at 160px 30px, var(--accent-blue) 50%, transparent 50%);
  background-size: 200px 100px;
  animation: twinkle 4s ease-in-out infinite alternate;
  opacity: 0.5;
}

@keyframes twinkle {
  0%, 100% { opacity: 0.5; transform: scale(1); }
  50% { opacity: 0.8; transform: scale(1.1); }
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 900px;
  padding: 0 30px;
}

.hero-title {
  font-size: clamp(3rem, 8vw, 5.5rem);
  font-weight: 900;
  margin-bottom: 15px;
  line-height: 1.1;
  text-shadow: 0 0 60px rgba(0, 212, 255, 0.4);
  animation: fadeInUp 1s ease forwards;
  opacity: 0;
  animation-delay: 0.2s;
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(40px); }
  to { opacity: 1; transform: translateY(0); }
}

.hero-fullname {
  font-size: clamp(0.85rem, 2vw, 1.1rem);
  color: var(--text-secondary);
  margin-bottom: 12px;
  font-weight: 300;
  letter-spacing: 2px;
  animation: fadeInUp 1s ease forwards;
  animation-delay: 0.4s;
  opacity: 0;
}

.hero-tagline {
  font-size: clamp(1.2rem, 3.5vw, 1.8rem);
  color: var(--accent-cyan);
  margin-bottom: 35px;
  font-weight: 300;
  animation: fadeInUp 1s ease forwards;
  animation-delay: 0.6s;
  opacity: 0;
}

.hero-btn {
  display: inline-block;
  padding: 15px 40px;
  background: var(--gradient-primary);
  color: var(--primary-dark);
  font-weight: 700;
  font-size: 1.1rem;
  text-decoration: none;
  border-radius: 50px;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  box-shadow: 0 5px 20px rgba(0, 212, 255, 0.4);
  animation: fadeInUp 1s ease forwards;
  animation-delay: 1.1s;
  opacity: 0;
}

.hero-btn:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 10px 40px rgba(0, 212, 255, 0.6);
}

.hero-scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  animation: bounce 2s ease-in-out infinite;
}

.hero-scroll span {
  font-size: 0.85rem;
  color: var(--text-secondary);
  letter-spacing: 1px;
}

.scroll-arrow {
  width: 24px;
  height: 24px;
  border-right: 2px solid var(--accent-blue);
  border-bottom: 2px solid var(--accent-blue);
  transform: rotate(45deg);
  opacity: 0.7;
  animation: scrollArrow 1.5s ease-in-out infinite;
}

@keyframes scrollArrow {
  0%, 100% { opacity: 0.3; transform: rotate(45deg) translateY(0); }
  50% { opacity: 0.8; transform: rotate(45deg) translateY(5px); }
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(10px); }
}

.about {
  background: var(--secondary-dark);
  position: relative;
}

.about::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--glass-border), transparent);
}

.about-heading {
  font-size: clamp(1.3rem, 3vw, 1.8rem);
  font-weight: 700;
  color: var(--accent-blue);
  margin-bottom: 20px;
  text-align: center;
}

.about-description {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 20px;
  text-align: justify;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  margin-top: 50px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.stat-item {
  text-align: center;
  padding: 30px 15px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.stat-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  border-color: var(--accent-blue);
}

.stat-number {
  display: block;
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 900;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 8px;
}

.stat-label {
  font-size: 0.95rem;
  color: var(--text-secondary);
  font-weight: 400;
}

.services {
  background: var(--primary-dark);
  position: relative;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
}

.service-card {
  padding: 40px 30px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: transform var(--transition-slow), box-shadow var(--transition-slow), border-color var(--transition-slow);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 20px;
  padding: 2px;
  background: var(--gradient-primary);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity var(--transition-slow);
}

.service-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-lg);
}

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

.service-icon {
  width: 70px;
  height: 70px;
  margin-bottom: 25px;
  color: var(--accent-blue);
  transition: transform var(--transition-base), color var(--transition-base);
}

.service-icon svg {
  width: 100%;
  height: 100%;
}

.service-card:hover .service-icon {
  transform: scale(1.1) rotate(5deg);
  color: var(--accent-cyan);
}

.service-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 15px;
  transition: color var(--transition-fast);
}

.service-card:hover .service-title {
  color: var(--accent-blue);
}

.service-description {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.8;
  margin-bottom: 20px;
}

.service-features {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.service-features li {
  font-size: 0.9rem;
  color: var(--accent-cyan);
  padding: 6px 16px;
  background: rgba(0, 245, 212, 0.1);
  border-radius: 20px;
  border: 1px solid rgba(0, 245, 212, 0.2);
  transition: background var(--transition-fast), transform var(--transition-fast);
}

.service-features li:hover {
  background: rgba(0, 245, 212, 0.2);
  transform: scale(1.05);
}

.advantages {
  background: var(--secondary-dark);
  position: relative;
}

.advantages::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--glass-border), transparent);
}

.advantages-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.advantage-item {
  padding: 40px 30px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  text-align: center;
  transition: transform var(--transition-slow), box-shadow var(--transition-slow);
  position: relative;
  overflow: hidden;
}

.advantage-item::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(0, 212, 255, 0.1) 0%, transparent 60%);
  opacity: 0;
  transition: opacity var(--transition-slow);
}

.advantage-item:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-md);
}

.advantage-item:hover::after {
  opacity: 1;
}

.advantage-number {
  display: inline-block;
  font-size: 2.5rem;
  font-weight: 900;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 20px;
  position: relative;
  z-index: 1;
}

.advantage-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 15px;
  position: relative;
  z-index: 1;
  transition: color var(--transition-fast);
}

.advantage-item:hover .advantage-title {
  color: var(--accent-blue);
}

.advantage-description {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.8;
  position: relative;
  z-index: 1;
}

.footer {
  background: linear-gradient(180deg, var(--secondary-dark), #05081a);
  padding: 60px 0 0;
  position: relative;
}

.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent-blue), transparent);
}

.footer-content {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-logo h3 {
  font-size: 1.8rem;
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 15px;
}

.footer-logo p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

.footer-links h4,
.footer-services h4 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 10px;
}

.footer-links h4::after,
.footer-services h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 30px;
  height: 2px;
  background: var(--gradient-primary);
  border-radius: 1px;
}

.footer-links ul,
.footer-services ul {
  list-style: none;
}

.footer-links li,
.footer-services li {
  margin-bottom: 12px;
  transition: transform var(--transition-fast);
}

.footer-links li:hover,
.footer-services li:hover {
  transform: translateX(5px);
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.95rem;
  transition: color var(--transition-fast);
}

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

.footer-services li {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.footer-bottom {
  padding: 25px 0;
  text-align: center;
}

.footer-bottom p {
  color: var(--text-secondary);
  font-size: 0.85rem;
  margin-bottom: 5px;
}

.copyright {
  opacity: 0.8;
}

.icp {
  opacity: 0.6;
  font-size: 0.8rem;
}

@media (max-width: 992px) {
  .advantages-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: 80px;
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(10, 14, 39, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 20px;
    gap: 5px;
    transform: translateX(100%);
    transition: transform var(--transition-base);
  }

  .nav-menu.active {
    transform: translateX(0);
  }

  .nav-link {
    display: block;
    padding: 15px 20px;
    font-size: 1rem;
  }

  .hero-title {
    font-size: clamp(2rem, 10vw, 3.5rem);
  }

  .hero-tagline {
    font-size: 1.1rem;
  }

  .hero-fullname {
    font-size: 0.8rem;
    letter-spacing: 1px;
  }

  .hero-btn {
    padding: 12px 30px;
    font-size: 1rem;
  }

  .about-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .stat-item {
    padding: 25px 15px;
  }

  .services-grid {
    grid-template-columns: 1fr;
  }

  .service-card {
    padding: 30px 25px;
  }

  .advantages-grid {
    grid-template-columns: 1fr;
    gap: 25px;
  }

  .footer-content {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  section {
    padding: 70px 0;
  }

  .section-header {
    margin-bottom: 40px;
  }

  .hero-scroll {
    display: none;
  }
}

@media (max-width: 480px) {
  .nav-container {
    height: 70px;
  }

  .nav-menu {
    top: 70px;
  }

  .hero {
    min-height: 90vh;
  }

  .about-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
  }

  .stat-item {
    padding: 20px 10px;
  }

  .stat-number {
    font-size: 1.8rem;
  }

  .stat-label {
    font-size: 0.85rem;
  }

  .service-card {
    padding: 25px 20px;
  }

  .advantage-item {
    padding: 30px 20px;
  }
}