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

html {
  scroll-behavior: smooth;
}

body {
  font-family: Arial, Helvetica, sans-serif;
  color: #172033;
  background: #f6f8fb;
  line-height: 1.6;
}

/* HEADER */
.header {
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
  background: rgba(8, 20, 38, 0.95);
  backdrop-filter: blur(10px);
  transition: 0.3s;
}

.navbar {
  max-width: 1200px;
  margin: auto;
  padding: 18px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo img {
  height: 70px;
  width: auto;
  object-fit: contain;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 26px;
}

.nav-links a {
  text-decoration: none;
  color: #ffffff;
  font-weight: 600;
  font-size: 14px;
  transition: 0.3s;
}

.nav-links a:hover {
  color: #2f80ed;
}

.menu-btn {
  display: none;
  background: none;
  border: none;
  color: white;
  font-size: 28px;
  cursor: pointer;
}

/* HERO */
.hero {
  min-height: 100vh;
  background:
    linear-gradient(rgba(5, 17, 35, 0.85), rgba(5, 17, 35, 0.85)),
    url("https://images.unsplash.com/photo-1558494949-ef010cbdcc31?auto=format&fit=crop&w=1600&q=80");
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: center;
  padding: 120px 24px 60px;
}

.hero-content {
  max-width: 1000px;
  margin: auto;
  text-align: center;
  color: white;
}

.hero h1 {
  font-size: clamp(38px, 6vw, 70px);
  line-height: 1.1;
  margin-bottom: 24px;
}

.hero p {
  font-size: 20px;
  max-width: 850px;
  margin: 0 auto 34px;
  color: #dbe6f5;
}

/* BUTTON */
.btn {
  display: inline-block;
  background: linear-gradient(135deg, #2f80ed, #56ccf2);
  color: white;
  padding: 15px 34px;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 700;
  transition: 0.3s;
}

.btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 25px rgba(47, 128, 237, 0.4);
}

/* BRANDS */
.brands {
  padding: 50px 0;
  background: white;
  overflow: hidden;
  text-align: center;
}

.brands h2 {
  margin-bottom: 30px;
  font-size: 30px;
}

.brand-carousel {
  overflow: hidden;
}

.brand-track {
  display: flex;
  gap: 30px;
  width: max-content;
  animation: scrollBrands 25s linear infinite;
}

.brand-track span {
  min-width: 160px;
  padding: 18px 24px;
  border-radius: 14px;
  background: #f0f4fa;
  font-weight: 800;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.06);
}

@keyframes scrollBrands {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(-50%);
  }
}

/* SECTIONS */
.section {
  padding: 95px 24px;
}

.container {
  max-width: 1200px;
  margin: auto;
}

.section h2 {
  font-size: 42px;
  margin-bottom: 18px;
  text-align: center;
}

.section-intro {
  text-align: center;
  max-width: 750px;
  margin: 0 auto 45px;
  color: #5b6575;
}

/* GRID */
.grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
}

/* CARD */
.card {
  background: white;
  padding: 34px;
  border-radius: 22px;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.08);
}

.card h3 {
  margin-bottom: 15px;
  color: #0d274d;
}

.card p {
  margin-bottom: 15px;
  color: #4f5b6b;
}

/* DARK SECTION */
.dark {
  background: radial-gradient(circle at top, #0d1f38, #081426);
  color: white;
}

.dark .section-intro {
  color: #b9c7da;
}

/* SOLUTIONS */
.solution-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}

.solution-card {
  background: linear-gradient(145deg, #162d4a, #0f223a);
  color: white;
  padding: 30px;
  border-radius: 22px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  transition: 0.3s;
  position: relative;
}

.solution-card::before {
  content: "";
  display: block;
  height: 3px;
  width: 50px;
  background: #2f80ed;
  margin-bottom: 15px;
  border-radius: 10px;
}

.solution-card h3 {
  color: #ffffff;
  margin-bottom: 10px;
}

.solution-card p {
  color: #d1d9e6;
}

.solution-card:hover {
  transform: translateY(-10px);
  border-color: #2f80ed;
  box-shadow: 0 20px 40px rgba(47, 128, 237, 0.3);
}

/* TIMELINE */
.timeline {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
}

.timeline-item {
  background: white;
  padding: 30px;
  border-radius: 22px;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.08);
}

.timeline-item span {
  display: inline-flex;
  width: 52px;
  height: 52px;
  align-items: center;
  justify-content: center;
  background: #2f80ed;
  color: white;
  font-weight: 800;
  border-radius: 50%;
  margin-bottom: 18px;
}

/* CONTACT */
.contact {
  background: linear-gradient(135deg, #eef4ff, #ffffff);
}

.contact-box {
  max-width: 780px;
  margin: auto;
  text-align: center;
  padding: 40px;
  border-radius: 20px;
  background: white;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.08);
}

.contact-box h3 {
  font-size: 28px;
  margin-bottom: 18px;
}

.contact-box a {
  color: #2f80ed;
  text-decoration: none;
  font-weight: 700;
}

/* FOOTER */
footer {
  text-align: center;
  padding: 24px;
  background: #081426;
  color: white;
}

/* RESPONSIVE */
@media (max-width: 900px) {
  .menu-btn {
    display: block;
  }

  .nav-links {
    position: absolute;
    top: 70px;
    left: 0;
    width: 100%;
    background: #081426;
    flex-direction: column;
    align-items: center;
    padding: 25px;
    display: none;
  }

  .nav-links.active {
    display: flex;
  }

  .grid,
  .solution-grid,
  .timeline {
    grid-template-columns: 1fr;
  }

  .hero p {
    font-size: 18px;
  }
}