* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: Arial, Helvetica, sans-serif;
}

:root {
  --primary: #2563eb;
  --secondary: #7c3aed;
  --dark: #0f172a;
  --gray: #64748b;
  --light: #f8fafc;
  --white: #ffffff;
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--light);
  color: var(--dark);
}

.navbar {
  width: 100%;
  padding: 16px 8%;
  background: rgba(255, 255, 255, 0.95);
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 8px 30px rgba(15, 23, 42, 0.08);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 22px;
  font-weight: 800;
  color: var(--dark);
}

.brand img {
  width: 52px;
  height: 52px;
  object-fit: contain;
}

nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

nav a {
  text-decoration: none;
  color: var(--dark);
  font-weight: 600;
  transition: 0.3s;
}

nav a:hover {
  color: var(--primary);
}

.menu-toggle {
  display: none;
  border: none;
  background: var(--primary);
  color: var(--white);
  font-size: 24px;
  padding: 8px 12px;
  border-radius: 10px;
  cursor: pointer;
}

.hero {
  min-height: 88vh;
  padding: 80px 8%;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
  gap: 48px;
  background: radial-gradient(circle at top right, rgba(124, 58, 237, 0.12), transparent 35%),
              radial-gradient(circle at left, rgba(37, 99, 235, 0.12), transparent 40%);
}

.badge {
  display: inline-block;
  padding: 10px 18px;
  background: rgba(37, 99, 235, 0.1);
  color: var(--primary);
  border-radius: 999px;
  font-weight: 700;
  margin-bottom: 20px;
}

.hero h1 {
  font-size: clamp(36px, 5vw, 64px);
  line-height: 1.1;
  margin-bottom: 22px;
}

.hero h1 span {
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero p {
  font-size: 18px;
  line-height: 1.8;
  color: var(--gray);
  max-width: 680px;
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 32px;
}

.btn {
  display: inline-block;
  padding: 14px 24px;
  border-radius: 14px;
  text-decoration: none;
  font-weight: 800;
  transition: 0.3s;
}

.btn.primary {
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  color: var(--white);
  box-shadow: 0 12px 28px rgba(37, 99, 235, 0.25);
}

.btn.secondary {
  background: var(--white);
  color: var(--primary);
  border: 1px solid rgba(37, 99, 235, 0.2);
}

.btn:hover {
  transform: translateY(-3px);
}

.hero-card {
  background: var(--white);
  border-radius: 32px;
  padding: 34px;
  box-shadow: 0 24px 70px rgba(15, 23, 42, 0.12);
}

.hero-card img {
  width: 100%;
  display: block;
  border-radius: 22px;
}

.section {
  padding: 90px 8%;
}

.section-title {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 46px;
}

.section-title p {
  color: var(--primary);
  font-weight: 800;
  margin-bottom: 10px;
}

.section-title h2 {
  font-size: clamp(30px, 4vw, 44px);
}

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

.card {
  background: var(--white);
  padding: 34px;
  border-radius: 26px;
  box-shadow: 0 14px 40px rgba(15, 23, 42, 0.08);
  transition: 0.3s;
}

.card:hover {
  transform: translateY(-8px);
}

.icon {
  width: 64px;
  height: 64px;
  display: grid;
  place-items: center;
  font-size: 30px;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.12), rgba(124, 58, 237, 0.12));
  border-radius: 18px;
  margin-bottom: 22px;
}

.card h3 {
  font-size: 24px;
  margin-bottom: 14px;
}

.card p {
  color: var(--gray);
  line-height: 1.7;
}

.portfolio {
  background: var(--dark);
  color: var(--white);
}

.portfolio .section-title p,
.portfolio .section-title h2 {
  color: var(--white);
}

.features {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.features div {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  padding: 28px;
  text-align: center;
  border-radius: 22px;
  font-size: 22px;
  font-weight: 800;
}

.contact-box {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: var(--white);
  border-radius: 34px;
  padding: 60px 30px;
  text-align: center;
  box-shadow: 0 20px 60px rgba(37, 99, 235, 0.28);
}

.contact-box h2 {
  font-size: clamp(30px, 4vw, 46px);
  margin-bottom: 16px;
}

.contact-box p {
  max-width: 720px;
  margin: 0 auto 28px;
  line-height: 1.8;
}

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

footer {
  padding: 24px 8%;
  text-align: center;
  background: var(--white);
  color: var(--gray);
}

@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero p {
    margin: 0 auto;
  }

  .hero-buttons {
    justify-content: center;
  }

  .services,
  .features {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 680px) {
  .navbar {
    padding: 14px 5%;
  }

  .menu-toggle {
    display: block;
  }

  nav {
    position: absolute;
    top: 82px;
    left: 5%;
    right: 5%;
    background: var(--white);
    flex-direction: column;
    gap: 18px;
    padding: 22px;
    border-radius: 20px;
    box-shadow: 0 18px 45px rgba(15, 23, 42, 0.12);
    display: none;
  }

  nav.active {
    display: flex;
  }

  .hero,
  .section {
    padding-left: 5%;
    padding-right: 5%;
  }

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

  .brand span {
    font-size: 18px;
  }
}