:root {
  --primary: #02a95c;
  --primary-dark: #028649;
  --bg: #f8f9fa;
  --card-bg: #ffffff;
  --text: #1f2937;
  --text-muted: #6b7280;
  --border: #e5e7eb;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  margin: 0;
  padding: 0;
}

/* Header & Nav */
.main-header {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 12px 20px;
}

.header-container {
  max-width: 1000px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 15px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.brand-badge {
  background: var(--primary);
  color: white;
  font-weight: 800;
  font-size: 1.1rem;
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
}

.brand-text h1 {
  font-size: 1.2rem;
  font-weight: 700;
  color: #111827;
  line-height: 1.1;
  margin: 0;
}

.tagline {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin: 2px 0 0 0;
}

.nav-links {
  display: flex;
  gap: 20px;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.95rem;
  transition: color 0.2s;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--primary);
}

.cart-btn {
  background: #f3f4f6;
  border: none;
  padding: 8px 14px;
  border-radius: 20px;
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
}

.cart-icon {
  font-size: 1.1rem;
}

.cart-count {
  background: var(--primary);
  color: white;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 10px;
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, #111827 0%, #1f2937 100%);
  color: #ffffff;
  padding: 60px 20px;
  text-align: center;
}

.hero-content {
  max-width: 600px;
  margin: 0 auto;
}

.hero-tag {
  background: rgba(2, 169, 92, 0.2);
  color: #02a95c;
  border: 1px solid var(--primary);
  font-size: 0.8rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 20px;
  text-transform: uppercase;
}

.hero h2 {
  font-size: 2.2rem;
  font-weight: 800;
  margin: 16px 0 10px;
}

.hero p {
  color: #9ca3af;
  font-size: 1rem;
  margin-bottom: 24px;
}

.hero-btn {
  display: inline-block;
  background: var(--primary);
  color: #ffffff;
  padding: 12px 28px;
  border-radius: 25px;
  font-weight: 700;
  text-decoration: none;
}

/* Containers */
.container {
  max-width: 1000px;
  margin: 30px auto;
  padding: 0 20px;
}

.page-container {
  max-width: 800px;
  margin: 40px auto;
  padding: 0 20px;
}

/* Shop Layout */
.shop-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 15px;
}

.search-bar {
  flex: 1;
  max-width: 380px;
}

.search-bar input {
  width: 100%;
  padding: 8px 14px;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: #ffffff;
  font-size: 0.9rem;
  outline: none;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 20px;
}

.product-card {
  background: var(--card-bg);
  border-radius: 12px;
  padding: 16px;
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.product-title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.product-price {
  color: var(--primary);
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.btn-buy {
  background: var(--primary);
  color: #ffffff;
  border: none;
  padding: 12px;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  width: 100%;
}

/* About & Contact Cards */
.about-card, .contact-card {
  background: var(--card-bg);
  padding: 30px;
  border-radius: 12px;
  border: 1px solid var(--border);
}

.about-card h2, .contact-card h2 {
  margin-bottom: 16px;
  color: #111827;
}

.about-card p {
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 12px;
}

.contact-form {
  margin-top: 20px;
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 6px;
  font-size: 0.9rem;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 10px 14px;
  border-radius: 8px;
  border: 1px solid var(--border);
  outline: none;
  font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--primary);
}

/* Footer */
.site-footer {
  background: #111827;
  color: #9ca3af;
  padding: 30px 20px;
  text-align: center;
  margin-top: 60px;
  border-top: 1px solid var(--border);
}

.developer-credit {
  margin-top: 8px;
  font-size: 0.85rem;
  color: #6b7280;
}

.developer-credit strong {
  color: var(--primary);
}

@media (max-width: 600px) {
  .nav-links {
    gap: 12px;
    font-size: 0.85rem;
  }
}