/* ===== Reset & Base ===== */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary: #4f46e5;
  --primary-light: #6366f1;
  --primary-dark: #3730a3;
  --bg: #fafafa;
  --bg-card: #ffffff;
  --bg-dark: #0f172a;
  --bg-dark-soft: #1e293b;
  --text: #1e293b;
  --text-muted: #64748b;
  --text-light: #f8fafc;
  --border: #e2e8f0;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);
  --shadow-md: 0 4px 6px rgba(0,0,0,.05), 0 2px 4px rgba(0,0,0,.04);
  --shadow-lg: 0 10px 25px rgba(0,0,0,.07), 0 4px 10px rgba(0,0,0,.04);
  --transition: .2s ease;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== Typography ===== */
h1 { font-size: clamp(2.2rem, 5vw, 3.5rem); font-weight: 800; line-height: 1.1; letter-spacing: -.02em; }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.5rem); font-weight: 700; line-height: 1.2; letter-spacing: -.015em; }
h3 { font-size: 1.15rem; font-weight: 600; }

.section-label {
  display: inline-block;
  font-size: .8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--primary);
  margin-bottom: 8px;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  font-size: .95rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  background: var(--primary);
  color: #fff;
  text-decoration: none;
  border: 2px solid transparent;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
}
.btn:hover { background: var(--primary-light); transform: translateY(-1px); }
.btn-outline { background: transparent; color: var(--primary); border-color: var(--primary); }
.btn-outline:hover { background: var(--primary); color: #fff; }
.btn-outline-light { background: transparent; color: rgba(255,255,255,.9); border-color: rgba(255,255,255,.3); }
.btn-outline-light:hover { background: rgba(255,255,255,.1); color: #fff; border-color: rgba(255,255,255,.6); }
.btn-sm { padding: 10px 20px; font-size: .85rem; }
.btn-full { width: 100%; }

/* ===== Navigation ===== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(250,250,250,.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow var(--transition);
}
.nav.scrolled { box-shadow: var(--shadow-md); }
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.logo {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -.02em;
}
.logo span {
  font-weight: 400;
  color: var(--text-muted);
  margin-left: 2px;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}
.nav-links a {
  font-size: .9rem;
  font-weight: 500;
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--transition);
}
.nav-links a:hover { color: var(--text); }
.nav-links .btn { color: #fff; }
.nav-links .btn:hover { color: #fff; }
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

/* ===== Hero ===== */
.hero {
  position: relative;
  padding: 160px 0 110px;
  text-align: center;
  background: var(--bg-dark);
  overflow: hidden;
  min-height: 600px;
  display: flex;
  align-items: center;
}

/* Neon lines canvas */
#heroCanvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

/* Content above effects */
.hero-content {
  position: relative;
  z-index: 10;
}
.hero-label {
  display: inline-block;
  font-size: .8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .12em;
  color: #818cf8;
  margin-bottom: 16px;
  padding: 6px 16px;
  border: 1px solid rgba(129,140,248,.3);
  border-radius: 100px;
  background: rgba(99,102,241,.1);
}
.hero h1 {
  margin-bottom: 20px;
  color: #f8fafc;
  text-shadow: 0 0 60px rgba(99,102,241,.3);
}
.hero-sub {
  max-width: 640px;
  margin: 0 auto 36px;
  font-size: 1.1rem;
  color: #94a3b8;
  line-height: 1.7;
}
.hero-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* ===== Services ===== */
.services { padding: 100px 0; }
.services h2 { margin-bottom: 48px; }
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 24px;
}
.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: box-shadow var(--transition), transform var(--transition);
}
.service-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}
.service-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #eef2ff;
  border-radius: var(--radius-sm);
  margin-bottom: 20px;
}
.service-icon svg {
  width: 24px;
  height: 24px;
  color: var(--primary);
}
.service-card h3 { margin-bottom: 10px; }
.service-card p { color: var(--text-muted); font-size: .95rem; line-height: 1.6; }

/* ===== Industries ===== */
.industries {
  padding: 100px 0;
  background: var(--bg-dark);
  color: var(--text-light);
}
.industries .section-label { color: #818cf8; }
.industries h2 { margin-bottom: 48px; }
.industries-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
}
.industry-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 16px;
  padding: 32px 20px;
  border-radius: var(--radius);
  background: var(--bg-dark-soft);
  border: 1px solid rgba(255,255,255,.06);
  text-decoration: none;
  color: var(--text-light);
  transition: background var(--transition), transform var(--transition);
}
.industry-card:hover {
  background: rgba(99,102,241,.15);
  transform: translateY(-4px);
}
.industry-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.industry-icon svg {
  width: 28px;
  height: 28px;
  color: #818cf8;
}
.industry-card h3 { font-size: 1rem; }

/* ===== Technology ===== */
.technology { padding: 100px 0; }
.technology h2 { margin-bottom: 48px; }
.tech-categories {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 32px;
}
.tech-category h3 {
  font-size: .85rem;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--text-muted);
  margin-bottom: 12px;
}
.tech-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.tech-tag {
  display: inline-block;
  padding: 6px 14px;
  font-size: .85rem;
  font-weight: 500;
  color: var(--primary-dark);
  background: #eef2ff;
  border-radius: 100px;
  transition: background var(--transition), color var(--transition);
}
.tech-tag:hover { background: var(--primary); color: #fff; }

/* ===== Contact ===== */
.contact {
  padding: 100px 0;
  background: linear-gradient(180deg, var(--bg) 0%, #eef2ff 100%);
}
.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 64px;
  align-items: start;
}
.contact-info h2 { margin-bottom: 16px; }
.contact-info p { color: var(--text-muted); line-height: 1.7; }
.contact-form {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px;
  box-shadow: var(--shadow-md);
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.form-group {
  margin-bottom: 16px;
}
.form-group label {
  display: block;
  font-size: .85rem;
  font-weight: 500;
  margin-bottom: 6px;
  color: var(--text);
}
.required { color: #ef4444; }
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 10px 14px;
  font-size: .95rem;
  font-family: inherit;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg);
  color: var(--text);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(79,70,229,.1);
}
.form-group textarea { resize: vertical; }
.form-status {
  margin-top: 12px;
  font-size: .9rem;
  text-align: center;
}
.form-status.success { color: #059669; }
.form-status.error { color: #ef4444; }

/* ===== Footer ===== */
.footer {
  padding: 32px 0;
  border-top: 1px solid var(--border);
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.footer-text {
  font-size: .85rem;
  color: var(--text-muted);
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .nav-toggle { display: flex; }
  .nav-links {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(250,250,250,.98);
    backdrop-filter: blur(12px);
    padding: 24px;
    gap: 16px;
    border-bottom: 1px solid var(--border);
  }
  .nav-links.open { display: flex; }

  .hero { padding: 130px 0 70px; min-height: auto; }
  .hero h1 br { display: none; }

  .services, .industries, .technology, .contact { padding: 72px 0; }

  .contact-wrapper {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .form-row { grid-template-columns: 1fr; }

  .footer-inner {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }

  .tech-categories {
    grid-template-columns: 1fr;
  }
}