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


body {
  padding-top: 120px; /* adjust to header height */
  font-family: "Segoe UI", Arial, sans-serif;
  background: #0b1220;
  color: #ffffff;
  line-height: 1.6;
  overflow-x: hidden;
}

img {
  display: block;
  max-width: 100%;
}

a {
  text-decoration: none;
  color: inherit;
}

/* =========================
   TOP WRAPPER
========================= */
.top-wrapper {
  width: 100%;
  position: relative;
}

/* =========================
   LOGO HEADER
========================= */
.logo-header {
  position: fixed;           /* FIXES header */
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;              /* stays above content */

  display: flex;
  justify-content: center;
  align-items: center;

  padding: 18px 0 12px;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);

  transition: all 0.3s ease;
}

.logo-header img {
  height: 90px;
  width: auto;
  max-width: 280px;
  object-fit: contain;

  filter: brightness(0.95) contrast(1.2)
          drop-shadow(0 6px 18px rgba(0,0,0,0.6));

  transition: height 0.3s ease;
}

/* =========================
   MENU HEADER
========================= */
.menu-header {
  width: 100%;
  background: rgba(5, 9, 20, 0.95);
  border-top: 1px solid rgba(255,255,255,0.08);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  padding: 10px 40px;
}

.menu-header ul {
  list-style: none;
  display: flex;
  justify-content: flex-end;
  gap: 35px;
}

.menu-header ul li a {
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.5px;
  position: relative;
  padding-bottom: 4px;
  color: #ffffff;
}

.menu-header ul li a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: #00b4ff;
  transition: width 0.3s ease;
}

.menu-header ul li a:hover::after {
  width: 100%;
}

/* =========================
   HERO SECTION
========================= */
.hero {
  min-height: calc(100vh - 210px); /* LOGO + MENU height fix */
  padding: 70px 40px;
  background: linear-gradient(
      rgba(0,0,0,0.65),
      rgba(0,0,0,0.65)
    ),
    url("../images/hero-bg.jpg") center/cover no-repeat;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.hero h1 {
  font-size: 42px;
  max-width: 900px;
  margin-bottom: 16px;
}

.hero p {
  font-size: 17px;
  max-width: 650px;
  color: #d0d6e0;
  margin-bottom: 30px;
}

.btn {
  display: inline-block;
  padding: 12px 30px;
  background: linear-gradient(135deg, #00b4ff, #0077ff);
  border-radius: 30px;
  font-weight: 600;
  width: fit-content;
}

/* =========================
   SECTIONS
========================= */
section {
  padding: 70px 40px;
}

section h2 {
  font-size: 32px;
  text-align: center;
  margin-bottom: 40px;
}

/* =========================
   GRID & CARDS
========================= */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 30px;
}

.card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 16px;
  padding: 25px;
  text-align: center;
  transition: all 0.3s ease;
}

.card img {
  height: 170px;
  object-fit: cover;
  border-radius: 12px;
  margin-bottom: 18px;
}

.card h3 {
  font-size: 20px;
  margin-bottom: 10px;
}

.card p {
  font-size: 14px;
  color: #c8d0dd;
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: 0 10px 30px rgba(0,180,255,0.25);
}

/* =========================
   FOOTER
========================= */
footer {
  background: #050914;
  padding: 25px 40px;
  text-align: center;
  font-size: 14px;
  color: #aab3c2;
}

/* =========================
   WHATSAPP FLOAT
========================= */
.whatsapp {
  position: fixed;
  bottom: 25px;
  right: 25px;
  background: #25d366;
  color: #ffffff;
  font-size: 22px;
  padding: 14px 16px;
  border-radius: 50%;
  box-shadow: 0 6px 20px rgba(0,0,0,0.4);
}

/* =========================
   RESPONSIVE
========================= */
@media (max-width: 768px) {

  .logo-header img {
    height: 65px;
    max-width: 200px;
  }

  .menu-header {
    padding: 10px 20px;
  }

  .menu-header ul {
    justify-content: center;
    flex-wrap: wrap;
    gap: 20px;
  }

  .hero {
    min-height: auto;
    padding: 60px 20px;
  }

  .hero h1 {
    font-size: 30px;
  }

  section {
    padding: 50px 20px;
  }
}