:root {
  --green-900: #0f3b2d;
  --green-800: #145336;
  --green-700: #1b6b41;
  --green-100: #e8f3ec;
  --yellow-500: #ffc928;
  --yellow-600: #f0b800;
  --white: #ffffff;
  --text-dark: #1c1c1c;
  --text-muted: #5a5a5a;
  --card-shadow: 0 14px 28px rgba(15, 59, 45, 0.12);
  --radius-lg: 18px;
  --radius-md: 12px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", Arial, sans-serif;
  color: var(--text-dark);
  background: #f6f8f7;
  line-height: 1.6;
}

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

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

.container {
  width: min(1180px, 92%);
  margin: 0 auto;
}

.top-bar {
  background: var(--yellow-500);
  color: #1d1d1d;
  text-align: center;
  font-weight: 600;
  padding: 0.5rem 1rem;
}

header {
  background: linear-gradient(160deg, var(--green-900), #0a281f);
  color: var(--white);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.3px;
}

.brand img {
  width: 42px;
  height: 42px;
}

nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  gap: 1.1rem;
  align-items: center;
}

nav a {
  padding: 0.4rem 0.7rem;
  border-radius: 999px;
  transition: background 0.2s;
}

nav a:hover,
nav a.active {
  background: rgba(255, 255, 255, 0.16);
}

.btn {
  border: none;
  border-radius: 999px;
  padding: 0.72rem 1.15rem;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.2s ease, background 0.2s ease;
  display: inline-block;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--yellow-500);
  color: #1c1c1c;
}

.btn-primary:hover {
  background: var(--yellow-600);
}

.btn-dark {
  background: var(--green-900);
  color: #fff;
}

.hero {
  background: radial-gradient(circle at 80% 10%, #236f42, var(--green-900) 50%, #091f18 95%);
  color: #fff;
  padding: 4.8rem 0 4rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 2rem;
  align-items: center;
}

.hero h1 {
  font-size: clamp(2rem, 4vw, 3.5rem);
  line-height: 1.12;
  margin-bottom: 1rem;
}

.hero p {
  color: #dbefe2;
  max-width: 620px;
}

.hero-card {
  background: rgba(255, 255, 255, 0.09);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-lg);
  padding: 1rem;
}

section {
  padding: 4rem 0;
}

.section-title {
  text-align: center;
  margin-bottom: 2rem;
}

.section-title h2 {
  margin: 0 0 0.35rem;
  color: var(--green-900);
  font-size: clamp(1.6rem, 2.8vw, 2.3rem);
}

.section-title p {
  margin: 0;
  color: var(--text-muted);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.2rem;
}

.card {
  background: #fff;
  border-radius: var(--radius-md);
  box-shadow: var(--card-shadow);
  overflow: hidden;
}

.card > img {
  width: 100%;
  height: 260px;
  object-fit: cover;
}

.card-body {
  padding: 1rem;
}

.badge {
  display: inline-block;
  background: var(--green-100);
  color: var(--green-800);
  border-radius: 999px;
  padding: 0.18rem 0.6rem;
  font-size: 0.84rem;
  font-weight: 700;
}

.price {
  font-weight: 800;
  color: var(--green-900);
}

.product-actions {
  display: flex;
  gap: 0.6rem;
  margin-top: 0.8rem;
}

.feature-strip {
  background: #ecf2ef;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}

.feature {
  background: #fff;
  border-radius: var(--radius-md);
  padding: 1rem;
  box-shadow: var(--card-shadow);
}

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: start;
}

.panel {
  background: #fff;
  border-radius: var(--radius-md);
  box-shadow: var(--card-shadow);
  padding: 1.2rem;
}

form {
  display: grid;
  gap: 0.9rem;
}

label {
  display: grid;
  gap: 0.3rem;
  font-weight: 600;
}

input,
textarea,
select {
  border: 1px solid #d1d7d4;
  border-radius: 10px;
  padding: 0.7rem 0.75rem;
  font: inherit;
}

textarea {
  min-height: 120px;
  resize: vertical;
}

.error {
  color: #ba0f0f;
  font-size: 0.9rem;
}

.success-msg {
  background: #dcf7df;
  color: #11461d;
  border: 1px solid #88cf94;
  border-radius: 10px;
  padding: 0.8rem;
}

.cart-table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--card-shadow);
}

.cart-table th,
.cart-table td {
  border-bottom: 1px solid #ebefec;
  padding: 0.8rem 0.6rem;
  text-align: left;
}

.faq-item {
  background: #fff;
  border-radius: var(--radius-md);
  margin-bottom: 0.85rem;
  box-shadow: var(--card-shadow);
}

.faq-item details {
  padding: 0.8rem 1rem;
}

footer {
  background: #081a14;
  color: #dbe7e1;
  padding: 3rem 0 1.2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 1rem;
}

.footer-links a {
  display: block;
  margin-bottom: 0.45rem;
  color: #dbe7e1;
}

.social a {
  display: inline-block;
  background: #16372b;
  color: #fff;
  padding: 0.4rem 0.65rem;
  margin-right: 0.35rem;
  border-radius: 999px;
}

.footer-bottom {
  margin-top: 1.1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  padding-top: 0.8rem;
  font-size: 0.94rem;
}

@media (max-width: 1000px) {
  .hero-grid,
  .grid-3,
  .feature-grid,
  .two-col,
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 700px) {
  nav ul {
    flex-wrap: wrap;
    justify-content: center;
  }

  .hero-grid,
  .grid-3,
  .feature-grid,
  .two-col,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 3rem;
  }

  .card > img {
    height: 220px;
  }

  .nav-wrap {
    flex-direction: column;
  }
}