/* ==========================================================
   NourishAU – Global Stylesheet
   Clean, professional wellness site for Australian audience
   ========================================================== */

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --clr-sage: #8a9a7b;
  --clr-sage-light: #c5d1bc;
  --clr-sage-pale: #eef2eb;
  --clr-sand: #d4c5a9;
  --clr-sand-light: #f5f0e6;
  --clr-charcoal: #2c2c2c;
  --clr-text: #3a3a3a;
  --clr-text-light: #6b6b6b;
  --clr-white: #ffffff;
  --clr-offwhite: #fafaf8;
  --clr-border: #e0ddd6;
  --clr-accent: #c17f59;
  --font-heading: 'DM Serif Display', Georgia, serif;
  --font-body: 'Source Sans 3', 'Segoe UI', sans-serif;
  --max-width: 1140px;
  --radius: 6px;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  color: var(--clr-text);
  background: var(--clr-offwhite);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--clr-sage); text-decoration: none; transition: color .2s; }
a:hover { color: var(--clr-accent); }

h1, h2, h3, h4 { font-family: var(--font-heading); color: var(--clr-charcoal); line-height: 1.25; }
h1 { font-size: 2.6rem; }
h2 { font-size: 2rem; margin-bottom: .6em; }
h3 { font-size: 1.35rem; margin-bottom: .4em; }

p { margin-bottom: 1em; }

.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }

/* --- Header / Navigation --- */
.site-header {
  background: var(--clr-white);
  border-bottom: 1px solid var(--clr-border);
  position: sticky;
  top: 0;
  z-index: 100;
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  color: var(--clr-charcoal);
  letter-spacing: .02em;
}
.logo span { color: var(--clr-sage); }

/* Hamburger */
.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 6px; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--clr-charcoal); margin: 5px 0; transition: .3s; }

.main-nav ul { list-style: none; display: flex; gap: 28px; }
.main-nav a {
  font-size: .92rem;
  font-weight: 600;
  color: var(--clr-text);
  text-transform: uppercase;
  letter-spacing: .06em;
  padding: 4px 0;
  border-bottom: 2px solid transparent;
  transition: border-color .2s, color .2s;
}
.main-nav a:hover,
.main-nav a.active {
  color: var(--clr-sage);
  border-bottom-color: var(--clr-sage);
}

/* --- Hero Section --- */
.hero {
  position: relative;
  min-height: 480px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--clr-charcoal);
}
.hero-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .45;
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 620px;
  padding: 60px 24px;
  color: var(--clr-white);
}
.hero-content h1 { color: var(--clr-white); margin-bottom: .4em; font-size: 2.8rem; }
.hero-content p { font-size: 1.15rem; opacity: .9; margin-bottom: 1.4em; }

.btn {
  display: inline-block;
  padding: 12px 28px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: .95rem;
  letter-spacing: .03em;
  transition: background .2s, transform .15s;
  cursor: pointer;
  border: none;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--clr-sage); color: var(--clr-white); }
.btn-primary:hover { background: #768b66; color: var(--clr-white); }
.btn-outline { background: transparent; border: 2px solid var(--clr-white); color: var(--clr-white); }
.btn-outline:hover { background: rgba(255,255,255,.15); color: var(--clr-white); }

/* --- Section Blocks --- */
.section { padding: 72px 0; }
.section--alt { background: var(--clr-white); }
.section-header { text-align: center; max-width: 640px; margin: 0 auto 48px; }
.section-header p { color: var(--clr-text-light); font-size: 1.05rem; }

/* --- Card Grid --- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 28px;
}
.card {
  background: var(--clr-white);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--clr-border);
  transition: box-shadow .25s, transform .2s;
}
.card:hover { box-shadow: 0 8px 28px rgba(0,0,0,.08); transform: translateY(-3px); }
.card-img { height: 210px; overflow: hidden; }
.card-img img { width: 100%; height: 100%; object-fit: cover; }
.card-body { padding: 22px 24px 26px; }
.card-body h3 a { color: var(--clr-charcoal); }
.card-body h3 a:hover { color: var(--clr-sage); }
.card-body p { color: var(--clr-text-light); font-size: .94rem; }
.card-tag {
  display: inline-block;
  background: var(--clr-sage-pale);
  color: var(--clr-sage);
  font-size: .78rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 3px;
  margin-bottom: 10px;
  text-transform: uppercase;
  letter-spacing: .04em;
}

/* --- Page Header (inner pages) --- */
.page-header {
  background: var(--clr-sage-pale);
  padding: 52px 0 44px;
  border-bottom: 1px solid var(--clr-border);
}
.page-header h1 { margin-bottom: .25em; font-size: 2.2rem; }
.page-header p { color: var(--clr-text-light); font-size: 1.05rem; max-width: 600px; }
.breadcrumb { font-size: .85rem; color: var(--clr-text-light); margin-bottom: 12px; }
.breadcrumb a { color: var(--clr-sage); }

/* --- Content Layout --- */
.content-block { margin-bottom: 48px; }
.content-block img {
  border-radius: var(--radius);
  margin: 18px 0;
}
.content-two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}

/* --- Info Table --- */
.info-table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
  font-size: .93rem;
}
.info-table th, .info-table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--clr-border);
}
.info-table th {
  background: var(--clr-sage-pale);
  font-weight: 600;
  color: var(--clr-charcoal);
}
.info-table tr:hover { background: var(--clr-sand-light); }

/* --- Calorie Calculator (pure HTML/CSS) --- */
.calc-note {
  background: var(--clr-sand-light);
  border-left: 4px solid var(--clr-sand);
  padding: 16px 20px;
  border-radius: 0 var(--radius) var(--radius) 0;
  font-size: .93rem;
  color: var(--clr-text-light);
  margin: 20px 0;
}

/* --- Contact Form --- */
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
.form-group { margin-bottom: 18px; }
.form-group.full { grid-column: 1 / -1; }
.form-group label {
  display: block;
  font-weight: 600;
  font-size: .88rem;
  margin-bottom: 6px;
  color: var(--clr-charcoal);
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: .95rem;
  background: var(--clr-white);
  transition: border-color .2s;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--clr-sage);
}
.form-group textarea { resize: vertical; min-height: 120px; }

/* --- Footer --- */
.site-footer {
  background: var(--clr-charcoal);
  color: rgba(255,255,255,.7);
  padding: 48px 0 28px;
  font-size: .9rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 36px;
}
.footer-brand .logo { color: var(--clr-white); margin-bottom: 12px; display: inline-block; }
.footer-brand p { max-width: 320px; line-height: 1.6; }
.site-footer h4 {
  color: var(--clr-white);
  font-size: .95rem;
  text-transform: uppercase;
  letter-spacing: .06em;
  margin-bottom: 14px;
}
.site-footer ul { list-style: none; }
.site-footer li { margin-bottom: 8px; }
.site-footer a { color: rgba(255,255,255,.65); }
.site-footer a:hover { color: var(--clr-sage-light); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.12);
  padding-top: 20px;
  text-align: center;
  font-size: .82rem;
  color: rgba(255,255,255,.45);
}

/* --- Disclaimer --- */
.disclaimer {
  background: var(--clr-sand-light);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  padding: 16px 20px;
  font-size: .85rem;
  color: var(--clr-text-light);
  margin: 32px 0;
  line-height: 1.6;
}

/* --- Responsive --- */
@media (max-width: 768px) {
  .nav-toggle { display: block; }
  .main-nav { display: none; position: absolute; top: 68px; left: 0; right: 0; background: var(--clr-white); border-bottom: 1px solid var(--clr-border); padding: 16px 24px; }
  .main-nav.open { display: block; }
  .main-nav ul { flex-direction: column; gap: 12px; }

  h1 { font-size: 2rem; }
  h2 { font-size: 1.6rem; }
  .hero { min-height: 380px; }
  .hero-content h1 { font-size: 2rem; }

  .content-two-col { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .card-grid { grid-template-columns: 1fr; }
}