/* === RESET & BASE === */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', sans-serif;
  background: #0a0a0f;
  color: #fff;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

/* === VARIABLES === */
:root {
  --cyan: #00f0ff;
  --purple: #7b2fff;
  --bg: #0a0a0f;
  --bg2: #111118;
  --text: #ffffff;
  --text2: #8a8a9a;
  --card-bg: rgba(255,255,255,0.03);
  --card-border: rgba(0,240,255,0.12);
  --glow: 0 0 30px rgba(0,240,255,0.15);
}

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.text-cyan { color: var(--cyan); }

/* === 3D CANVAS === */
#scene3d {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 0;
  pointer-events: none;
}

/* === NAVBAR === */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 16px 0;
  transition: background 0.4s, backdrop-filter 0.4s;
}
.navbar.scrolled {
  background: rgba(10,10,15,0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(0,240,255,0.08);
}
.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: 3px;
}
.logo-k {
  color: var(--cyan);
  font-size: 1.6rem;
}
.logo-tec { color: var(--text2); font-weight: 400; }
.nav-links { display: flex; gap: 32px; align-items: center; }
.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text2);
  transition: color 0.3s;
  letter-spacing: 0.5px;
}
.nav-links a:hover { color: var(--cyan); }
.nav-cta {
  padding: 8px 20px !important;
  border: 1px solid var(--cyan) !important;
  border-radius: 6px;
  color: var(--cyan) !important;
  transition: all 0.3s !important;
}
.nav-cta:hover { background: var(--cyan) !important; color: var(--bg) !important; }
.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 4px; }
.nav-toggle span {
  display: block; width: 24px; height: 2px;
  background: var(--text); margin: 5px 0;
  transition: all 0.3s;
}

/* === HERO === */
.hero {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 120px 24px 60px;
}
.hero-content { max-width: 800px; }
.hero-tag {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 24px;
  opacity: 0;
}
.hero-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(2.5rem, 7vw, 5rem);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 24px;
}
.hero-line { display: block; opacity: 0; }
.hero-accent {
  color: var(--cyan);
  text-shadow: 0 0 40px rgba(0,240,255,0.3);
}
.hero-sub {
  font-size: 1.15rem;
  color: var(--text2);
  line-height: 1.7;
  max-width: 560px;
  margin: 0 auto 40px;
  opacity: 0;
}
.hero-buttons { display: flex; gap: 16px; justify-content: center; opacity: 0; }

/* === BUTTONS === */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s;
  border: none;
  font-family: 'Inter', sans-serif;
}
.btn-primary {
  background: var(--cyan);
  color: var(--bg);
}
.btn-primary:hover {
  background: #33f5ff;
  box-shadow: 0 0 30px rgba(0,240,255,0.4);
  transform: translateY(-2px);
}
.btn-outline {
  background: transparent;
  color: var(--text);
  border: 1px solid rgba(255,255,255,0.2);
}
.btn-outline:hover {
  border-color: var(--cyan);
  color: var(--cyan);
}
.btn-lg { padding: 16px 36px; font-size: 1rem; }
.btn-full { width: 100%; justify-content: center; }

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
}
.scroll-line {
  width: 1px; height: 60px;
  background: linear-gradient(to bottom, var(--cyan), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}
@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; transform: scaleY(0.6); }
  50% { opacity: 1; transform: scaleY(1); }
}

/* === SECTIONS === */
.section {
  position: relative;
  z-index: 1;
  padding: 120px 0;
  background: var(--bg);
}
.section:nth-child(even) { background: var(--bg2); }
.section-label {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 16px;
}
.section-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 20px;
}
.section-desc {
  font-size: 1.1rem;
  color: var(--text2);
  line-height: 1.8;
  max-width: 640px;
  margin-bottom: 60px;
}

/* === STATS === */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  margin-top: 60px;
}
.stat {
  text-align: center;
  padding: 32px 16px;
  border: 1px solid var(--card-border);
  border-radius: 12px;
  background: var(--card-bg);
}
.stat-number {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 2.8rem;
  font-weight: 700;
  color: var(--cyan);
}
.stat-suffix {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.8rem;
  color: var(--cyan);
}
.stat-label {
  font-size: 0.85rem;
  color: var(--text2);
  margin-top: 8px;
}

/* === SERVICES === */
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 48px;
}
.service-card {
  padding: 40px;
  border: 1px solid var(--card-border);
  border-radius: 16px;
  background: var(--card-bg);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  transform-style: preserve-3d;
  perspective: 1000px;
}
.service-card:hover {
  border-color: rgba(0,240,255,0.3);
  background: rgba(0,240,255,0.04);
  transform: translateY(-4px);
  box-shadow: var(--glow);
}
.service-icon {
  width: 56px; height: 56px;
  color: var(--cyan);
  margin-bottom: 24px;
}
.service-card h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.35rem;
  font-weight: 600;
  margin-bottom: 12px;
}
.service-card p {
  color: var(--text2);
  line-height: 1.7;
  font-size: 0.95rem;
  margin-bottom: 20px;
}
.service-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.service-tags li {
  padding: 4px 12px;
  border: 1px solid rgba(0,240,255,0.2);
  border-radius: 20px;
  font-size: 0.75rem;
  color: var(--cyan);
  font-weight: 500;
}

/* === CASES === */
.cases-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 48px;
}
.case-card {
  display: flex;
  gap: 24px;
  padding: 36px;
  border: 1px solid var(--card-border);
  border-radius: 16px;
  background: var(--card-bg);
  transition: all 0.4s;
}
.case-card:hover {
  border-color: rgba(0,240,255,0.3);
  transform: translateY(-2px);
}
.case-number {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 3rem;
  font-weight: 700;
  color: rgba(0,240,255,0.15);
  line-height: 1;
  flex-shrink: 0;
}
.case-content h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 4px;
}
.case-client {
  font-size: 0.85rem;
  color: var(--cyan);
  margin-bottom: 12px;
  font-weight: 500;
}
.case-content > p {
  color: var(--text2);
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: 16px;
}
.case-results {
  display: flex;
  gap: 20px;
}
.case-results span {
  font-size: 0.8rem;
  color: var(--text2);
  padding: 4px 10px;
  background: rgba(0,240,255,0.06);
  border-radius: 6px;
}
.case-results strong { color: var(--cyan); }

/* === CONTACT === */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  margin-top: 48px;
  align-items: start;
}
.contact-desc {
  font-size: 1.1rem;
  color: var(--text2);
  line-height: 1.7;
  margin-bottom: 32px;
}
.contact-items { display: flex; flex-direction: column; gap: 20px; margin-bottom: 32px; }
.contact-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px;
  border: 1px solid var(--card-border);
  border-radius: 12px;
  background: var(--card-bg);
  transition: all 0.3s;
}
.contact-item:hover { border-color: rgba(0,240,255,0.3); }
.contact-item svg { flex-shrink: 0; color: var(--cyan); }
.contact-item div { display: flex; flex-direction: column; gap: 2px; }
.contact-item strong { font-size: 0.9rem; }
.contact-item span { font-size: 0.85rem; color: var(--text2); }

/* Form */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.form-group input,
.form-group textarea {
  width: 100%;
  padding: 16px 20px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 10px;
  color: var(--text);
  font-size: 0.95rem;
  font-family: 'Inter', sans-serif;
  transition: border-color 0.3s;
  outline: none;
}
.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px rgba(0,240,255,0.1);
}
.form-group textarea { resize: vertical; }

/* === FOOTER === */
.footer {
  position: relative;
  z-index: 1;
  padding: 48px 0;
  background: var(--bg);
  border-top: 1px solid rgba(255,255,255,0.06);
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
}
.footer-brand p { color: var(--text2); font-size: 0.85rem; margin-top: 8px; }
.footer-links { display: flex; gap: 24px; }
.footer-links a { color: var(--text2); font-size: 0.85rem; transition: color 0.3s; }
.footer-links a:hover { color: var(--cyan); }
.footer-copy { color: var(--text2); font-size: 0.8rem; width: 100%; text-align: center; padding-top: 24px; border-top: 1px solid rgba(255,255,255,0.06); }

/* === RESPONSIVE === */
@media (max-width: 968px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .services-grid { grid-template-columns: 1fr; }
  .cases-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(10,10,15,0.97);
    backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 32px;
    z-index: 99;
  }
  .nav-links.active { display: flex; }
  .nav-links a { font-size: 1.2rem; }
  .nav-toggle { display: block; z-index: 101; }
  .nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
  .nav-toggle.active span:nth-child(2) { opacity: 0; }
  .nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

  .hero { padding: 100px 24px 40px; }
  .hero-title { font-size: 2.4rem; }
  .hero-buttons { flex-direction: column; align-items: center; }
  .section { padding: 80px 0; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .stat { padding: 20px 12px; }
  .stat-number { font-size: 2rem; }
  .service-card { padding: 28px; }
  .case-card { flex-direction: column; gap: 12px; }
  .case-number { font-size: 2rem; }
  .case-results { flex-direction: column; gap: 8px; }
  .footer-inner { flex-direction: column; text-align: center; }
  .footer-links { justify-content: center; }
}

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .stat-number { font-size: 1.6rem; }
}