:root {
  --primary: #0d1b2a;
  --secondary: #1b263b;
  --accent: #ffb703;
  --bg: #f8f9fa;
  --text: #212529;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Inter', 'Segoe UI', Arial, sans-serif;
}

body {
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

/* HEADER */
header {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  padding: 20px;
  color: #fff;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

header h1 {
  font-size: 1.6rem;
}

header nav a {
  color: #fff;
  margin-left: 15px;
  text-decoration: none;
  font-weight: 600;
}

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

/* HERO */
.hero {
  background: linear-gradient(rgba(0,0,0,.6), rgba(0,0,0,.6)),
  url('https://images.unsplash.com/photo-1542362567-b07e54358753') center/cover no-repeat;
  padding: 100px 20px;
  color: #fff;
  text-align: center;
}

.hero h2 {
  font-size: 3rem;
  margin-bottom: 15px;
}

.hero p {
  max-width: 700px;
  margin: auto;
  font-size: 1.2rem;
}

.hero .btn {
  margin-top: 25px;
}

/* BUTTONS */
.btn {
  display: inline-block;
  padding: 14px 28px;
  background: var(--accent);
  color: #000;
  font-weight: 700;
  border-radius: 40px;
  text-decoration: none;
  transition: .3s;
}

.btn:hover {
  transform: scale(1.05);
  background: #ffd166;
}

/* SECTIONS */
section {
  padding: 70px 20px;
  max-width: 1200px;
  margin: auto;
}

section h2 {
  text-align: center;
  margin-bottom: 40px;
  font-size: 2.2rem;
}

/* PRODUCTS */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 25px;
}

.product-card {
  background: #fff;
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0,0,0,.08);
  transition: .3s;
}

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

.product-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.product-card h3 {
  padding: 15px 15px 5px;
  font-size: 1.1rem;
}

.product-card p {
  padding: 0 15px;
  font-weight: bold;
  color: #28a745;
}

.product-card a {
  margin: 15px;
  display: block;
  text-align: center;
}

/* FLOAT WHATSAPP */
.whatsapp-float {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background: #25d366;
  color: #fff;
  padding: 15px 18px;
  border-radius: 50px;
  text-decoration: none;
  font-weight: bold;
  box-shadow: 0 4px 12px rgba(0,0,0,.25);
  z-index: 999;
}

.whatsapp-float:hover {
  background: #1ebe57;
}

/* FOOTER */
footer {
  background: var(--primary);
  color: #fff;
  padding: 40px 20px;
  text-align: center;
}

footer p {
  opacity: .8;
}

/* RESPONSIVE */
@media(max-width:768px) {
  .hero h2 { font-size: 2.1rem; }
}