/* ============================================
   XINNOVA — 3D REBRAND DESIGN SYSTEM
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@300;400;500;600;700&family=Inter:wght@300;400;500;600&display=swap');

/* --- Custom Properties --- */
:root {
  --bg-deep: #030014;
  --bg-mid: #0a0020;
  --bg-surface: rgba(15, 10, 40, 0.6);
  --glass: rgba(255, 255, 255, 0.04);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-hover: rgba(255, 255, 255, 0.08);
  --primary: #7c3aed;
  --primary-light: #a78bfa;
  --accent: #22d3ee;
  --accent-dim: rgba(34, 211, 238, 0.15);
  --gradient-main: linear-gradient(135deg, #7c3aed, #06b6d4);
  --gradient-text: linear-gradient(135deg, #a78bfa, #22d3ee);
  --gradient-btn: linear-gradient(135deg, #7c3aed, #2563eb, #06b6d4);
  --text: #f1f5f9;
  --text-dim: #94a3b8;
  --text-muted: #64748b;
  --font-heading: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --radius: 16px;
  --radius-sm: 10px;
  --transition: 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* --- Reset --- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
  font-family: var(--font-body);
  background: var(--bg-deep);
  color: var(--text);
  overflow-x: hidden;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img { max-width: 100%; display: block; }
button, input, textarea { font-family: inherit; border: none; outline: none; }

/* --- Scrollbar --- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-deep); }
::-webkit-scrollbar-thumb { background: var(--primary); border-radius: 3px; }

/* --- Utilities --- */
.gradient-text {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.section-label {
  font-family: var(--font-heading);
  font-size: 0.8rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 12px;
}
.section-label::before {
  content: '';
  width: 40px;
  height: 1px;
  background: var(--accent);
}

/* --- Scroll Animations --- */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }

/* ============================================
   NAVIGATION
   ============================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 16px 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: var(--transition);
}
.navbar.scrolled {
  background: rgba(3, 0, 20, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
  padding: 12px 40px;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 700;
}
.nav-logo .logo-mark {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--gradient-main);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  font-weight: 700;
  box-shadow: 0 0 20px rgba(124, 58, 237, 0.4);
  position: relative;
}
.nav-logo .logo-mark::after {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: 14px;
  background: var(--gradient-main);
  z-index: -1;
  opacity: 0.4;
  filter: blur(8px);
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-dim);
  position: relative;
  transition: color var(--transition);
}
.nav-links a:hover,
.nav-links a.active {
  color: var(--text);
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-main);
  transition: width var(--transition);
  border-radius: 1px;
}
.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}
.nav-profile {
  padding: 8px 20px;
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  background: transparent;
  border: 1px solid var(--glass-border);
  color: var(--text);
  cursor: pointer;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.nav-profile::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-main);
  opacity: 0;
  transition: opacity var(--transition);
}
.nav-profile:hover::before { opacity: 1; }
.nav-profile span { position: relative; z-index: 1; }

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  z-index: 1001;
}
.hamburger span {
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}

/* ============================================
   HERO SECTION
   ============================================ */
#hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
#hero-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}
.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 800px;
  padding: 0 20px;
}
.hero-label {
  font-family: var(--font-heading);
  font-size: 0.8rem;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 24px;
  opacity: 0;
  animation: fadeUp 1s 0.3s forwards;
}
.hero-title {
  font-family: var(--font-heading);
  font-size: clamp(2.8rem, 6vw, 5rem);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 24px;
  opacity: 0;
  animation: fadeUp 1s 0.5s forwards;
}
.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-dim);
  max-width: 550px;
  margin: 0 auto 40px;
  opacity: 0;
  animation: fadeUp 1s 0.7s forwards;
}
.hero-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  opacity: 0;
  animation: fadeUp 1s 0.9s forwards;
}
.btn-primary {
  padding: 14px 32px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 600;
  background: var(--gradient-btn);
  background-size: 200% 100%;
  color: white;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 4px 20px rgba(124, 58, 237, 0.3);
  border: none;
}
.btn-primary:hover {
  background-position: 100% 0;
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(124, 58, 237, 0.5);
}
.btn-secondary {
  padding: 14px 32px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 600;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  color: var(--text);
  cursor: pointer;
  transition: var(--transition);
  backdrop-filter: blur(10px);
}
.btn-secondary:hover {
  background: var(--glass-hover);
  border-color: var(--primary-light);
  transform: translateY(-2px);
}
.scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  opacity: 0;
  animation: fadeUp 1s 1.2s forwards;
}
.scroll-indicator .mouse {
  width: 24px;
  height: 38px;
  border: 2px solid var(--text-muted);
  border-radius: 12px;
  display: flex;
  justify-content: center;
  padding-top: 8px;
}
.scroll-indicator .wheel {
  width: 3px;
  height: 8px;
  background: var(--accent);
  border-radius: 2px;
  animation: scrollWheel 2s infinite;
}

/* ============================================
   SERVICES SECTION
   ============================================ */
#services {
  padding: 120px 40px;
  position: relative;
}
.section-header {
  text-align: center;
  margin-bottom: 64px;
}
.section-header h2 {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  margin-bottom: 16px;
}
.section-header p {
  color: var(--text-dim);
  font-size: 1.05rem;
  max-width: 500px;
  margin: 0 auto;
}
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: 1200px;
  margin: 0 auto;
}
.service-card {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 36px 28px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  transform-style: preserve-3d;
  perspective: 1000px;
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--gradient-main);
  opacity: 0;
  transition: opacity var(--transition);
}
.service-card:hover {
  background: var(--glass-hover);
  border-color: rgba(124, 58, 237, 0.3);
  transform: translateY(-8px);
  box-shadow: 0 20px 60px rgba(124, 58, 237, 0.1), 0 0 40px rgba(124, 58, 237, 0.05);
}
.service-card:hover::before { opacity: 1; }
.service-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: var(--accent-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 20px;
  transition: var(--transition);
}
.service-card:hover .service-icon {
  box-shadow: 0 0 20px rgba(34, 211, 238, 0.3);
}
.service-card h3 {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 12px;
}
.service-card p {
  font-size: 0.9rem;
  color: var(--text-dim);
  line-height: 1.6;
}

/* ============================================
   ABOUT SECTION
   ============================================ */
#about {
  padding: 120px 40px;
  position: relative;
}
.about-container {
  max-width: 1200px;
  margin: 0 auto;
}
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  margin-bottom: 80px;
}
.about-content h2 {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 24px;
}
.about-content p {
  color: var(--text-dim);
  font-size: 1rem;
  margin-bottom: 16px;
  line-height: 1.8;
}
.about-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 400px;
}
#about-canvas {
  width: 100%;
  height: 400px;
  border-radius: var(--radius);
}

/* Stats Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  max-width: 1200px;
  margin: 0 auto;
}
.stat-card {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.stat-card:hover {
  border-color: rgba(124, 58, 237, 0.3);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(124, 58, 237, 0.1);
}
.stat-number {
  font-family: var(--font-heading);
  font-size: 2.8rem;
  font-weight: 700;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 8px;
}
.stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* ============================================
   CONTACT SECTION
   ============================================ */
#contact {
  padding: 120px 40px;
  position: relative;
}
.contact-container {
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
}
.contact-container h2 {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  margin-bottom: 16px;
}
.contact-container > p {
  color: var(--text-dim);
  font-size: 1.05rem;
  margin-bottom: 48px;
}
.contact-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 48px;
}
.contact-card {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 28px 20px;
  text-align: center;
  transition: var(--transition);
}
.contact-card:hover {
  border-color: rgba(124, 58, 237, 0.3);
  transform: translateY(-4px);
}
.contact-card-icon {
  font-size: 1.6rem;
  margin-bottom: 12px;
}
.contact-card h4 {
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 6px;
}
.contact-card p {
  font-size: 0.8rem;
  color: var(--text-dim);
}
.contact-form {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 40px;
  text-align: left;
}
.form-group {
  margin-bottom: 20px;
  position: relative;
}
.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-dim);
  margin-bottom: 8px;
}
.form-group input,
.form-group textarea {
  width: 100%;
  padding: 14px 16px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 0.95rem;
  transition: var(--transition);
}
.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.15);
}
.form-group textarea { resize: vertical; min-height: 120px; }
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.btn-submit {
  width: 100%;
  padding: 16px;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-weight: 600;
  background: var(--gradient-btn);
  background-size: 200% 100%;
  color: white;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  margin-top: 8px;
}
.btn-submit:hover {
  background-position: 100% 0;
  box-shadow: 0 8px 30px rgba(124, 58, 237, 0.4);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  padding: 40px;
  border-top: 1px solid var(--glass-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.footer-logo {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 700;
}
.footer-copy {
  font-size: 0.85rem;
  color: var(--text-muted);
}
.footer-link {
  padding: 8px 20px;
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  font-size: 0.85rem;
  color: var(--text-dim);
  transition: var(--transition);
}
.footer-link:hover {
  border-color: var(--primary);
  color: var(--text);
}

/* ============================================
   KEYFRAMES
   ============================================ */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes scrollWheel {
  0% { opacity: 1; transform: translateY(0); }
  100% { opacity: 0; transform: translateY(10px); }
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}
@keyframes pulseGlow {
  0%, 100% { box-shadow: 0 0 20px rgba(124, 58, 237, 0.3); }
  50% { box-shadow: 0 0 40px rgba(124, 58, 237, 0.6); }
}
@keyframes gradientShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .about-grid { gap: 40px; }
}

@media (max-width: 768px) {
  .navbar { padding: 14px 20px; }
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: rgba(3, 0, 20, 0.97);
    backdrop-filter: blur(30px);
    flex-direction: column;
    justify-content: center;
    padding: 40px;
    transition: right var(--transition);
    border-left: 1px solid var(--glass-border);
  }
  .nav-links.open { right: 0; }
  .hamburger { display: flex; }
  .hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
  .hamburger.active span:nth-child(2) { opacity: 0; }
  .hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }
  
  #hero { min-height: 100svh; }
  .hero-title { font-size: clamp(2.2rem, 8vw, 3.5rem); }
  .hero-buttons { flex-direction: column; align-items: center; }
  
  .services-grid { grid-template-columns: 1fr; }
  #services, #about, #contact { padding: 80px 20px; }
  
  .about-grid { grid-template-columns: 1fr; }
  .about-visual { min-height: 280px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  
  .contact-cards { grid-template-columns: 1fr; }
  .contact-form { padding: 24px; }
  .form-row { grid-template-columns: 1fr; }
  
  .footer { flex-direction: column; gap: 16px; text-align: center; }
}

@media (max-width: 480px) {
  .stat-number { font-size: 2rem; }
}