/*--------------------------------------------------------------
  Penguin Ponics – Modern, Eco‑Friendly Theme
--------------------------------------------------------------*/

/* 1. CSS Variables – easy theming */
:root {
  --color-primary: #2E8B57;      /* Deep Sea Green */
  --color-secondary: #20B2AA;    /* Light Sea Green */
  --color-accent: #98FB98;       /* Pale Green */
  --color-bg: #F5F5F5;           /* Light Grey */
  --color-text: #2F4F4F;         /* Dark Slate Grey */
  --color-white: #FFFFFF;
  --font-base: 'Open Sans', sans-serif;
  --font-headline: 'Lora', serif;
  --spacing: 1.5rem;
  --radius: 8px;
}

/* 2. Global Resets & Base Styles */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-base);
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.3s ease;
}
a:hover { color: var(--color-secondary); }

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

/* 3. Layout Containers */
.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
}

/* 4. Header */
.site-header {
  background: var(--color-white);
  padding: var(--spacing) 0;
  border-bottom: 1px solid #e0e0e0;
}
.logo {
  font-family: var(--font-headline);
  font-size: 1.8rem;
  margin: 0;
  color: var(--color-primary);
  float: left;
}
.primary-nav {
  float: right;
}
.primary-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.primary-nav li {
  display: inline-block;
  margin-left: 1.5rem;
}
.primary-nav a {
  font-weight: 600;
}

/* 5. Hero Section */
.hero {
  background: url('https://images.unsplash.com/photo-1515378791036-0648a3ef77b2?auto=format&fit=crop&w=1400&q=80') center/cover no-repeat;
  color: var(--color-white);
  text-align: center;
  padding: 6rem 0;
}
.hero h2 {
  font-family: var(--font-headline);
  font-size: 3rem;
  margin-bottom: 0.5rem;
}
.hero p {
  font-size: 1.2rem;
  margin-bottom: 1.5rem;
}
.btn-primary {
  background: var(--color-primary);
  color: var(--color-white);
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius);
  font-weight: 600;
  display: inline-block;
}

/* 6. Main Content */
.about, .benefits, .cta {
  margin-top: 3rem;
}
.about h3, .benefits h3, .cta h3 {
  font-family: var(--font-headline);
  color: var(--color-primary);
  margin-bottom: 1rem;
}
.benefit-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}
.benefit-grid article {
  background: var(--color-white);
  padding: var(--spacing);
  border-radius: var(--radius);
  box-shadow: 0 2px 6px rgba(0,0,0,0.1);
}
.benefit-grid h4 {
  color: var(--color-secondary);
  margin-top: 0;
}
.btn-secondary {
  background: var(--color-secondary);
  color: var(--color-white);
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius);
  font-weight: 600;
  display: inline-block;
}

/* 7. Footer */
.site-footer {
  background: var(--color-primary);
  color: var(--color-white);
  padding: var(--spacing) 0;
  margin-top: 4rem;
}
.site-footer p, .footer-nav a {
  color: var(--color-white);
}
.footer-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.footer-nav li {
  display: inline-block;
  margin-right: 1.5rem;
}

/* 8. Responsive Adjustments */
@media (max-width: 768px) {
  .primary-nav li { margin-left: 0.75rem; }
  .hero h2 { font-size: 2.2rem; }
  .hero p { font-size: 1rem; }
}

/* Clear floats */
.clearfix::after {
  content: "";
  clear: both;
  display: table;
}