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

:root {
  --blue: #0057ff;
  --blue-dark: #0041cc;
  --blue-light: #e8f0ff;
  --dark: #0d1117;
  --dark-2: #161b27;
  --mid: #3d4a63;
  --muted: #6b7a99;
  --border: #e2e8f0;
  --bg: #f8fafc;
  --white: #ffffff;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow: 0 2px 12px rgba(0,0,0,.08);
  --shadow-lg: 0 8px 40px rgba(0,0,0,.12);
  --transition: .22s ease;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  color: var(--dark);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── NAV ─────────────────────────────────────────── */
.nav-wrapper {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  font-size: 1.2rem;
  color: var(--dark);
  font-weight: 500;
}
.logo-icon { color: var(--blue); font-size: 1rem; }
.logo strong { color: var(--blue); }

.nav-links {
  display: flex;
  list-style: none;
  gap: 36px;
  align-items: center;
}
.nav-links a {
  text-decoration: none;
  color: var(--mid);
  font-size: .95rem;
  font-weight: 500;
  transition: color var(--transition);
}
.nav-links a:hover { color: var(--blue); }

.btn-nav {
  background: var(--blue) !important;
  color: var(--white) !important;
  padding: 9px 22px !important;
  border-radius: 8px !important;
  transition: background var(--transition) !important;
}
.btn-nav:hover { background: var(--blue-dark) !important; }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--dark);
  border-radius: 2px;
  transition: var(--transition);
}

/* ── HERO ────────────────────────────────────────── */
.hero {
  background: linear-gradient(135deg, #0b1628 0%, #0d1f45 60%, #0057ff22 100%);
  color: var(--white);
  padding: 100px 0 80px;
  overflow: hidden;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 60px;
}

.badge {
  display: inline-block;
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.2);
  padding: 5px 14px;
  border-radius: 20px;
  font-size: .8rem;
  font-weight: 500;
  letter-spacing: .04em;
  margin-bottom: 20px;
  color: #a8c4ff;
}

.hero h1 {
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 20px;
}
.accent { color: #4d8fff; }

.hero-sub {
  color: #9bb5d8;
  font-size: 1.05rem;
  max-width: 460px;
  margin-bottom: 36px;
}

.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; }

.btn-primary {
  display: inline-block;
  background: var(--blue);
  color: #fff;
  padding: 13px 28px;
  border-radius: 9px;
  text-decoration: none;
  font-weight: 600;
  font-size: .95rem;
  border: none;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
}
.btn-primary:hover { background: var(--blue-dark); transform: translateY(-1px); }

.btn-ghost {
  display: inline-block;
  color: #fff;
  padding: 13px 28px;
  border-radius: 9px;
  text-decoration: none;
  font-weight: 600;
  font-size: .95rem;
  border: 1px solid rgba(255,255,255,.25);
  transition: border-color var(--transition), background var(--transition);
}
.btn-ghost:hover { border-color: rgba(255,255,255,.6); background: rgba(255,255,255,.05); }

/* Hero visual */
.hero-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 300px;
}

.grid-art {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  opacity: .35;
}
.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #4d8fff;
}
.dot.active { background: #fff; opacity: .9; }

.card-float {
  position: absolute;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.15);
  backdrop-filter: blur(8px);
  padding: 12px 18px;
  border-radius: 10px;
  font-size: .82rem;
  font-weight: 500;
  color: #c8d8f0;
  display: flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
}
.card-1 { top: 20%; right: 0; animation: float 4s ease-in-out infinite; }
.card-2 { bottom: 22%; left: 5%; animation: float 4s ease-in-out infinite .5s; }

@keyframes float {
  0%,100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

/* ── SECTIONS ────────────────────────────────────── */
.section { padding: 90px 0; }

.section-label {
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 10px;
}

.section-title {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 16px;
  line-height: 1.2;
}

.section-sub {
  font-size: 1.05rem;
  color: var(--muted);
  max-width: 540px;
  margin-bottom: 52px;
}

/* ── ABOUT ───────────────────────────────────────── */
.about { background: var(--bg); }

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

.about-text p {
  color: var(--mid);
  margin-bottom: 16px;
  font-size: .98rem;
}

.check-list {
  list-style: none;
  margin-top: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.check-list li {
  padding-left: 24px;
  position: relative;
  color: var(--mid);
  font-size: .95rem;
}
.check-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--blue);
  font-weight: 700;
}

.stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.stat-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  text-align: center;
  box-shadow: var(--shadow);
}

.stat-number {
  font-size: 2rem;
  font-weight: 700;
  color: var(--blue);
  margin-bottom: 4px;
}
.stat-label { font-size: .82rem; color: var(--muted); font-weight: 500; }

/* ── SERVICES ────────────────────────────────────── */
.services { background: var(--white); }

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.service-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
}
.service-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
  border-color: #c5d8ff;
}

.service-icon { font-size: 2rem; margin-bottom: 14px; }
.service-card h3 { font-size: 1.05rem; margin-bottom: 10px; color: var(--dark); }
.service-card p { font-size: .9rem; color: var(--muted); line-height: 1.6; }

/* ── WHY US ──────────────────────────────────────── */
.why-us {
  background: linear-gradient(135deg, #0b1628 0%, #0d1f45 100%);
  color: var(--white);
}
.why-us .section-label { color: #4d8fff; }
.why-us .section-title { color: var(--white); }

.pillars {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.pillar { padding: 8px 0; }
.pillar-num {
  font-size: 2.4rem;
  font-weight: 700;
  color: rgba(77,143,255,.4);
  line-height: 1;
  margin-bottom: 14px;
}
.pillar h3 { font-size: 1rem; margin-bottom: 10px; color: #e0eaff; }
.pillar p { font-size: .88rem; color: #7a96c0; line-height: 1.65; }

/* ── CONTACT ─────────────────────────────────────── */
.contact { background: var(--bg); }

.contact-layout {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 48px;
  align-items: start;
}

.contact-info { display: flex; flex-direction: column; gap: 16px; }

.info-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 22px;
  display: flex;
  gap: 16px;
  align-items: flex-start;
  box-shadow: var(--shadow);
  transition: box-shadow var(--transition);
}
.info-card:hover { box-shadow: var(--shadow-lg); }

.info-icon { font-size: 1.4rem; flex-shrink: 0; margin-top: 2px; }
.info-title { font-size: .78rem; font-weight: 700; text-transform: uppercase; letter-spacing: .07em; color: var(--muted); margin-bottom: 4px; }
.info-body { font-size: .92rem; color: var(--mid); line-height: 1.55; }
.info-body a { color: var(--blue); text-decoration: none; }
.info-body a:hover { text-decoration: underline; }

/* Form */
.contact-form {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 18px;
}
.form-group label {
  font-size: .82rem;
  font-weight: 600;
  color: var(--dark);
  letter-spacing: .01em;
}

.form-group input,
.form-group select,
.form-group textarea {
  padding: 11px 14px;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  font-family: inherit;
  font-size: .95rem;
  color: var(--dark);
  background: var(--bg);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
  resize: vertical;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(0,87,255,.1);
  background: var(--white);
}

.form-group input.error,
.form-group textarea.error {
  border-color: #e53e3e;
}

.btn-full { width: 100%; justify-content: center; text-align: center; }

.form-note {
  text-align: center;
  font-size: .8rem;
  color: var(--muted);
  margin-top: 10px;
}

.form-success {
  display: none;
  margin-top: 16px;
  padding: 14px 18px;
  background: #f0fff4;
  border: 1px solid #9ae6b4;
  border-radius: 8px;
  font-size: .9rem;
  color: #276749;
  text-align: center;
}

/* ── FOOTER ──────────────────────────────────────── */
.footer {
  background: var(--dark);
  color: #8094b4;
  padding: 48px 0 28px;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.footer-brand .logo { color: #c8d8f0; margin-bottom: 6px; display: inline-flex; }
.footer-brand p { font-size: .85rem; margin-top: 6px; }

.footer-links {
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
}
.footer-links a {
  color: #8094b4;
  text-decoration: none;
  font-size: .88rem;
  transition: color var(--transition);
}
.footer-links a:hover { color: #c8d8f0; }

.footer-bottom {
  border-top: 1px solid #1e2a40;
  padding-top: 20px;
  font-size: .8rem;
}

/* ── RESPONSIVE ──────────────────────────────────── */
@media (max-width: 1024px) {
  .pillars { grid-template-columns: repeat(2, 1fr); }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-layout { grid-template-columns: 1fr; }
  .contact-info { flex-direction: row; flex-wrap: wrap; }
  .info-card { flex: 1 1 200px; }
}

@media (max-width: 768px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-visual { display: none; }
  .about-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(4, 1fr); }
  .services-grid { grid-template-columns: 1fr; }
  .pillars { grid-template-columns: 1fr 1fr; }
  .contact-layout { grid-template-columns: 1fr; }
  .contact-info { flex-direction: column; }
  .contact-form { padding: 28px 20px; }
  .form-row { grid-template-columns: 1fr; }
  .nav-links { display: none; flex-direction: column; position: absolute; top: 68px; left: 0; right: 0; background: #fff; border-top: 1px solid var(--border); padding: 20px 24px; gap: 16px; box-shadow: var(--shadow-lg); }
  .nav-links.open { display: flex; }
  .hamburger { display: flex; }
  .section { padding: 64px 0; }
}

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .hero { padding: 72px 0 60px; }
  .pillars { grid-template-columns: 1fr; }
}