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

:root {
  --navy: #0a1628;
  --navy-light: #111d33;
  --navy-mid: #162036;
  --accent: #3b82f6;
  --accent-dark: #2563eb;
  --accent-glow: rgba(59, 130, 246, 0.15);
  --teal: #06b6d4;
  --text: #f1f5f9;
  --text-muted: #94a3b8;
  --text-dark: #1e293b;
  --text-body: #475569;
  --white: #ffffff;
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --border: rgba(255, 255, 255, 0.08);
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.12);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ─── Navbar ─── */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: var(--transition);
  background: transparent;
}

.navbar.scrolled {
  background: rgba(10, 22, 40, 0.95);
  backdrop-filter: blur(12px);
  padding: 12px 0;
  box-shadow: 0 1px 0 var(--border);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text);
}

.logo-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--accent), var(--teal));
  border-radius: 10px;
  font-weight: 800;
  font-size: 18px;
  color: var(--white);
}

.logo-text {
  font-weight: 700;
  font-size: 20px;
  letter-spacing: -0.02em;
}

.logo-accent {
  color: var(--accent);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-muted);
  font-size: 15px;
  font-weight: 500;
  transition: color var(--transition);
}

.nav-links a:hover {
  color: var(--text);
}

.nav-cta {
  font-size: 14px !important;
  padding: 10px 24px !important;
}

.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.mobile-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}

.mobile-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.mobile-toggle.active span:nth-child(2) {
  opacity: 0;
}

.mobile-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ─── Buttons ─── */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: var(--transition);
}

.btn-primary {
  background: var(--accent);
  color: var(--white);
}

.btn-primary:hover {
  background: var(--accent-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(59, 130, 246, 0.4);
}

.btn-outline {
  background: transparent;
  color: var(--text);
  border: 1.5px solid var(--border);
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn-lg {
  padding: 14px 32px;
  font-size: 16px;
}

.btn-full {
  width: 100%;
}

/* ─── Hero ─── */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--navy);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% 0%, rgba(59, 130, 246, 0.12), transparent),
    radial-gradient(ellipse 60% 50% at 80% 50%, rgba(6, 182, 212, 0.08), transparent);
}

.hero-container {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 60px;
  padding-top: 100px;
  padding-bottom: 100px;
}

.hero-content {
  max-width: 560px;
}

.hero-tag {
  display: inline-block;
  padding: 6px 16px;
  background: var(--accent-glow);
  border: 1px solid rgba(59, 130, 246, 0.2);
  border-radius: 100px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 24px;
}

.hero h1 {
  font-size: clamp(36px, 5vw, 56px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--text);
  margin-bottom: 20px;
}

.text-gradient {
  background: linear-gradient(135deg, var(--accent), var(--teal));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 18px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 36px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-visual {
  position: relative;
  height: 400px;
}

.hero-shape {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
}

.shape-1 {
  width: 300px;
  height: 300px;
  background: rgba(59, 130, 246, 0.15);
  top: 10%;
  left: 10%;
  animation: float 8s ease-in-out infinite;
}

.shape-2 {
  width: 200px;
  height: 200px;
  background: rgba(6, 182, 212, 0.12);
  top: 40%;
  right: 10%;
  animation: float 6s ease-in-out infinite reverse;
}

.shape-3 {
  width: 150px;
  height: 150px;
  background: rgba(139, 92, 246, 0.1);
  bottom: 10%;
  left: 30%;
  animation: float 10s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-20px) scale(1.05); }
}

/* ─── Section Common ─── */

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 60px;
}

.section-tag {
  display: inline-block;
  padding: 6px 16px;
  background: var(--accent-glow);
  border: 1px solid rgba(59, 130, 246, 0.15);
  border-radius: 100px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 16px;
}

.section-header h2,
.about-content h2,
.contact-info h2 {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-dark);
  margin-bottom: 16px;
  line-height: 1.2;
}

.section-desc {
  font-size: 17px;
  color: var(--text-body);
  line-height: 1.7;
}

/* ─── Services ─── */

.services {
  padding: 100px 0;
  background: var(--white);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.service-card {
  padding: 36px;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  transition: var(--transition);
}

.service-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.service-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  background: var(--accent-glow);
  border-radius: var(--radius-sm);
  color: var(--accent);
  margin-bottom: 20px;
}

.service-card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}

.service-card p {
  font-size: 15px;
  color: var(--text-body);
  line-height: 1.7;
}

/* ─── About ─── */

.about {
  padding: 100px 0;
  background: var(--gray-50);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-content p {
  font-size: 16px;
  color: var(--text-body);
  line-height: 1.8;
  margin-bottom: 16px;
}

.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

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

.stat-number {
  font-size: 40px;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: -0.03em;
}

.stat-suffix {
  font-size: 32px;
  font-weight: 800;
  color: var(--accent);
}

.stat-label {
  display: block;
  margin-top: 4px;
  font-size: 14px;
  color: var(--text-body);
  font-weight: 500;
}

/* ─── Contact ─── */

.contact {
  padding: 100px 0;
  background: var(--white);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.contact-info p {
  font-size: 16px;
  color: var(--text-body);
  line-height: 1.7;
  margin-bottom: 32px;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.contact-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.contact-item svg {
  flex-shrink: 0;
  color: var(--accent);
  margin-top: 2px;
}

.contact-item strong {
  display: block;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 4px;
}

.contact-item span {
  font-size: 14px;
  color: var(--text-body);
  line-height: 1.5;
}

.contact-form {
  padding: 40px;
  background: var(--gray-50);
  border-radius: var(--radius);
  border: 1px solid var(--gray-200);
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-dark);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  background: var(--white);
  border: 1.5px solid var(--gray-200);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 15px;
  color: var(--text-dark);
  transition: var(--transition);
  outline: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-muted);
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.form-success {
  text-align: center;
  padding: 40px 20px;
}

.form-success h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-dark);
}

.form-success p {
  color: var(--text-body);
  font-size: 15px;
}

/* ─── Footer ─── */

.footer {
  background: var(--navy);
  padding: 60px 0 0;
  color: var(--text);
}

.footer-top {
  display: flex;
  justify-content: space-between;
  gap: 60px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--border);
}

.footer-brand {
  max-width: 320px;
}

.footer-brand p {
  margin-top: 16px;
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
}

.footer-links {
  display: flex;
  gap: 60px;
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-col h4 {
  font-size: 14px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text);
  margin-bottom: 4px;
}

.footer-col a {
  text-decoration: none;
  color: var(--text-muted);
  font-size: 14px;
  transition: color var(--transition);
}

.footer-col a:hover {
  color: var(--text);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 0;
}

.footer-bottom p {
  font-size: 13px;
  color: var(--text-muted);
}

.social-links {
  display: flex;
  gap: 16px;
}

.social-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--border);
  color: var(--text-muted);
  transition: var(--transition);
}

.social-links a:hover {
  color: var(--accent);
  border-color: var(--accent);
  background: var(--accent-glow);
}

/* ─── Responsive ─── */

@media (max-width: 768px) {
  .nav-links,
  .nav-cta {
    display: none;
  }

  .nav-links.active {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--navy-light);
    padding: 20px 24px;
    gap: 16px;
    border-bottom: 1px solid var(--border);
  }

  .mobile-toggle {
    display: flex;
  }

  .hero-container {
    grid-template-columns: 1fr;
    padding-top: 120px;
    padding-bottom: 60px;
  }

  .hero-visual {
    display: none;
  }

  .hero-actions {
    flex-direction: column;
  }

  .hero-actions .btn {
    text-align: center;
  }

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

  .about-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .contact-form {
    padding: 24px;
  }

  .footer-top {
    flex-direction: column;
    gap: 40px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .hero h1 {
    font-size: 32px;
  }

  .about-stats {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }

  .stat {
    padding: 20px;
  }

  .stat-number {
    font-size: 32px;
  }

  .service-card {
    padding: 24px;
  }
}