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

/* Base */
body {
  color: #333;
  line-height: 1.65;
  font-size: 1.1rem; /* +10% base */
}

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

/* Header */
header {
  background: linear-gradient(135deg, #2f4f4f, #3b6f6f);
  color: #fff;
  padding: 22px 0;
}

.container {
  width: 90%;
  max-width: 1200px;
  margin: auto;
}

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

.logo {
  display: flex;
  align-items: center;
}

.logo img {
  height: 65px;
  width: auto;
}

.nav ul {
  list-style: none;
  display: flex;
  gap: 22px;
}

.nav li {
  font-size: 1.05rem;
}

/* Hero */
.hero {
  background: url('Pic/background/background.jpg') center center / cover no-repeat;
  min-height: 80vh;
  display: flex;
  align-items: center;
  color: #fff;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url('logo.jpg') center/500px no-repeat;
  opacity: 0.08;
  z-index: 1;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 2;
}

.hero-content {
  position: relative;
  z-index: 3;
  max-width: 650px;
}

.hero h1 {
  font-size: 3.3rem;
  margin-bottom: 18px;
}

.hero p {
  font-size: 1.21rem;
  margin-bottom: 28px;
}

/* Button */
.btn {
  display: inline-block;
  padding: 13px 30px;
  background: #f4b400;
  color: #000;
  font-weight: bold;
  font-size: 1.05rem;
  border-radius: 4px;
}

/* Sections */
.section {
  padding: 75px 0;
}

.section h2 {
  text-align: center;
  font-size: 2.42rem;
  margin-bottom: 22px;
}

.section p.center {
  text-align: center;
  max-width: 750px;
  margin: 0 auto 55px;
  font-size: 1.1rem;
}

/* Products */
.products {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 32px;
}

.card {
  background: #fff;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

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

.card .content {
  padding: 22px;
}

.card h3 {
  margin-bottom: 12px;
  font-size: 1.54rem;
}

.card p,
.card li {
  font-size: 1.05rem;
  line-height: 1.65;
}

/* Why Us */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 28px;
}

.feature {
  background: #f5f5f5;
  padding: 28px;
  border-radius: 6px;
  text-align: center;
}

.feature img {
  width: 70px;
  height: 70px;
  object-fit: contain;
  margin-bottom: 16px;
}

.feature h4 {
  margin-top: 12px;
  font-size: 1.21rem;
  color: #222;
}

/* CTA */
.cta {
  background: #2f4f4f;
  color: #fff;
  text-align: center;
  padding: 65px 20px;
}

.cta h2 {
  margin-bottom: 18px;
  font-size: 2.42rem;
}

.cta p {
  font-size: 1.1rem;
}

/* Footer */
footer {
  background: #222;
  color: #ccc;
  padding: 28px 0;
  text-align: center;
  font-size: 0.99rem;
}

/* Mobile */
@media (max-width: 768px) {
  body {
    font-size: 1.05rem;
  }

  .hero h1 {
    font-size: 2.42rem;
  }

  .nav ul {
    display: none;
  }
}