/* Variables for colors */
:root {
  --amazon-dark: #0f1111;
  --amazon-yellow: #ffbb00;
  --amazon-yellow-dark: #f0a500;
  --amazon-gray-light: #d4dbd9;
  --amazon-gray-dark: #222f3d;
  --amazon-white: #fff;
  --amazon-blue: #007185;
  --amazon-blue-light: #cce7f0;
}

/* Reset */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Arial', Helvetica, sans-serif;
  scroll-behavior: smooth;
}

/* Body */
body {
  background-color: var(--amazon-white);
  color: var(--amazon-dark);
  line-height: 1.6;
}

/* Navbar */
.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.5rem;
  background-color: var(--amazon-dark);
  color: var(--amazon-white);
  flex-wrap: wrap;
  height: 60px;
  gap: 10px;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 5px rgba(0,0,0,0.6);
  transition: background-color 0.3s ease;
}

.navbar:hover {
  background-color: #1a1d1f;
}

.logo img {
  height: 50px;
  width: auto;
  filter: drop-shadow(1px 1px 1px rgba(0,0,0,0.5));
  transition: transform 0.3s ease;
}

.logo img:hover {
  transform: scale(1.1);
}

/* Search bar */
.search-bar {
  flex: 1;
  max-width: 600px;
  display: flex;
  margin: 0 1rem;
  border-radius: 4px;
  overflow: hidden;
  box-shadow: 0 0 8px rgba(0,0,0,0.1);
  background-color: var(--amazon-white);
  transition: box-shadow 0.3s ease;
}

.search-bar:hover,
.search-bar:focus-within {
  box-shadow: 0 0 12px var(--amazon-yellow);
}

.search-bar input {
  flex: 1;
  padding: 10px 15px;
  font-size: 1rem;
  border: none;
  outline: none;
  color: var(--amazon-dark);
  font-weight: 500;
}

.search-bar button {
  padding: 10px 16px;
  background-color: var(--amazon-yellow);
  border: none;
  cursor: pointer;
  font-size: 1.3rem;
  transition: background-color 0.3s ease;
  color: var(--amazon-dark);
}

.search-bar button:hover {
  background-color: var(--amazon-yellow-dark);
  color: var(--amazon-white);
  transform: scale(1.05);
}

/* Nav links */
.nav-links {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.nav-links a {
  color: var(--amazon-white);
  font-weight: 700;
  text-decoration: none;
  padding: 8px 12px;
  border-radius: 4px;
  transition: background-color 0.25s ease;
  white-space: nowrap;
}

.nav-links a:hover,
.nav-links a:focus-visible {
  background-color: var(--amazon-yellow);
  color: var(--amazon-dark);
  outline: none;
  text-decoration: none;
}

/* Hero Section */
.hero img {
  width: 100%;
  height: auto;
  display: block;
  margin-top: 10px;
  border-radius: 8px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.15);
  transition: transform 0.5s ease;
  cursor: pointer;
}

.hero img:hover {
  transform: scale(1.02);
}

/* Products Grid */
.products {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
  padding: 2rem 1rem;
  background-color: var(--amazon-gray-light);
}

.box {
  background: var(--amazon-white);
  padding: 1.25rem 1rem;
  border-radius: 8px;
  text-align: center;
  box-shadow: 0 0 10px rgba(0,0,0,0.08);
  transition: box-shadow 0.3s ease, transform 0.3s ease;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.box:hover {
  box-shadow: 0 0 20px var(--amazon-yellow);
  transform: translateY(-6px);
}

.box img {
  max-width: 100%;
  height: auto;
  margin-bottom: 0.8rem;
  border-radius: 5px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  transition: box-shadow 0.3s ease;
}

.box img:hover {
  box-shadow: 0 4px 15px var(--amazon-yellow);
}

.box h2 {
  margin-bottom: 0.6rem;
  font-weight: 700;
  color: var(--amazon-dark);
  font-size: 1.1rem;
}

.box p {
  color: var(--amazon-blue);
  font-weight: 600;
  font-size: 0.95rem;
  margin-top: auto;
  transition: color 0.3s ease;
}

.box p:hover,
.box p:focus {
  text-decoration: underline;
  color: var(--amazon-yellow-dark);
  cursor: pointer;
}

/* Footer */
.footer {
  background-color: var(--amazon-dark);
  color: var(--amazon-white);
  text-align: center;
  padding: 1rem 0;
  margin-top: 3rem;
  font-size: 0.9rem;
  user-select: none;
}

/* Responsive */
@media (max-width: 768px) {
  .navbar {
    height: auto;
    padding: 1rem;
  }

  .search-bar {
    max-width: 100%;
    margin: 0.75rem 0;
  }

  .nav-links {
    justify-content: center;
    width: 100%;
  }

  .box {
    min-width: 200px;
  }
}