/* ===== Wellthsana.com - Main Stylesheet ===== */
/* Mobile-first, lightweight, accessible */

/* --- CSS Custom Properties --- */
:root {
  --color-primary: #2d6a4f;
  --color-primary-dark: #1b4332;
  --color-primary-light: #52b788;
  --color-accent: #d4a03c;
  --color-accent-hover: #b8862e;
  --color-text: #2c2c2c;
  --color-text-light: #555;
  --color-text-muted: #777;
  --color-bg: #ffffff;
  --color-bg-alt: #f8f9f5;
  --color-bg-dark: #1b4332;
  --color-border: #e0e0e0;
  --color-star: #f0a500;
  --font-body: 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-heading: Georgia, 'Times New Roman', serif;
  --max-width: 1140px;
  --radius: 8px;
  --shadow: 0 2px 8px rgba(0,0,0,0.08);
  --shadow-lg: 0 4px 20px rgba(0,0,0,0.12);
  --transition: 0.2s ease;
}

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

html {
  font-size: 100%;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  font-size: 1rem;
}

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

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover, a:focus { color: var(--color-primary-dark); }

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  color: var(--color-primary-dark);
  line-height: 1.3;
  margin-bottom: 0.75rem;
}

h1 { font-size: 2rem; }
h2 { font-size: 1.5rem; margin-top: 2rem; }
h3 { font-size: 1.25rem; margin-top: 1.5rem; }
h4 { font-size: 1.1rem; }

p { margin-bottom: 1rem; }

ul, ol { margin: 0 0 1rem 1.5rem; }
li { margin-bottom: 0.35rem; }

/* --- Utility --- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1rem;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  border: 0;
}

.text-center { text-align: center; }

/* --- Skip Link (accessibility) --- */
.skip-link {
  position: absolute;
  top: -100%;
  left: 0;
  background: var(--color-primary);
  color: #fff;
  padding: 0.5rem 1rem;
  z-index: 1000;
  font-size: 0.9rem;
}

.skip-link:focus {
  top: 0;
  color: #fff;
}

/* --- Header & Navigation --- */
.site-header {
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 0.75rem;
  padding-bottom: 0.75rem;
}

.site-logo {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-primary-dark);
}

.site-logo:hover { color: var(--color-primary-dark); }

.nav-toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  transition: var(--transition);
}

.main-nav {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow);
}

.main-nav.open { display: block; }

.main-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.main-nav li { border-top: 1px solid var(--color-border); }

.main-nav a {
  display: block;
  padding: 0.85rem 1.25rem;
  color: var(--color-text);
  font-size: 0.95rem;
  font-weight: 500;
}

.main-nav a:hover,
.main-nav a[aria-current="page"] {
  color: var(--color-primary);
  background: var(--color-bg-alt);
}

/* --- Breadcrumbs --- */
.breadcrumbs {
  padding: 0.75rem 0;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.breadcrumbs a { color: var(--color-text-muted); }
.breadcrumbs a:hover { color: var(--color-primary); }
.breadcrumbs span { margin: 0 0.35rem; }

/* --- Hero Section --- */
.hero {
  background: linear-gradient(135deg, var(--color-bg-dark) 0%, var(--color-primary) 100%);
  color: #fff;
  padding: 3rem 0;
  text-align: center;
}

.hero h1 {
  color: #fff;
  font-size: 2rem;
  margin-bottom: 1rem;
}

.hero p {
  font-size: 1.1rem;
  opacity: 0.92;
  max-width: 600px;
  margin: 0 auto 1.5rem;
}

/* --- Buttons --- */
.btn {
  display: inline-block;
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius);
  font-size: 1rem;
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  border: none;
  transition: background var(--transition), transform var(--transition);
}

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

.btn-primary {
  background: var(--color-accent);
  color: #fff;
}

.btn-primary:hover {
  background: var(--color-accent-hover);
  color: #fff;
}

.btn-outline {
  background: transparent;
  color: #fff;
  border: 2px solid #fff;
}

.btn-outline:hover {
  background: rgba(255,255,255,0.15);
  color: #fff;
}

.btn-cta {
  background: var(--color-accent);
  color: #fff;
  font-size: 1.1rem;
  padding: 0.9rem 2rem;
}

.btn-cta:hover {
  background: var(--color-accent-hover);
  color: #fff;
}

/* --- Section Spacing --- */
.section {
  padding: 3rem 0;
}

.section-alt {
  background: var(--color-bg-alt);
}

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

/* --- Cards --- */
.card-grid {
  display: grid;
  gap: 1.5rem;
}

.card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: box-shadow var(--transition);
}

.card:hover { box-shadow: var(--shadow-lg); }

.card-img {
  width: 100%;
  height: 200px;
  background: var(--color-bg-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  font-size: 0.85rem;
  overflow: hidden;
}

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

.card-body { padding: 1.25rem; }

.card-body h3 {
  font-size: 1.15rem;
  margin-top: 0;
  margin-bottom: 0.5rem;
}

.card-body h3 a { color: var(--color-primary-dark); }
.card-body h3 a:hover { color: var(--color-primary); }

.card-meta {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-bottom: 0.5rem;
}

.card-body p {
  font-size: 0.92rem;
  color: var(--color-text-light);
}

/* --- Product Spotlight (Homepage) --- */
.product-spotlight {
  display: grid;
  gap: 2rem;
  align-items: center;
}

.product-spotlight-img {
  background: var(--color-bg-alt);
  border-radius: var(--radius);
  padding: 2rem;
  text-align: center;
  min-height: 280px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  font-size: 0.9rem;
  border: 1px solid var(--color-border);
}

.product-spotlight-img img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
}

.product-spotlight-text h2 { margin-top: 0; }

/* --- Product Review Page --- */
.review-header {
  background: var(--color-bg-alt);
  padding: 2rem 0;
  border-bottom: 1px solid var(--color-border);
}

.review-content {
  max-width: 800px;
  margin: 0 auto;
}

.disclosure {
  background: #fff8e1;
  border-left: 4px solid var(--color-accent);
  padding: 0.75rem 1rem;
  font-size: 0.85rem;
  color: var(--color-text-light);
  margin-bottom: 1.5rem;
  border-radius: 0 var(--radius) var(--radius) 0;
}

.product-overview-box {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin: 1.5rem 0;
}

.product-specs {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0;
  font-size: 0.92rem;
}

.product-specs th,
.product-specs td {
  text-align: left;
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--color-border);
}

.product-specs th {
  font-weight: 600;
  width: 40%;
  color: var(--color-text);
}

.pros-cons {
  display: grid;
  gap: 1rem;
  margin: 1rem 0;
}

.pros h4, .cons h4 {
  margin-bottom: 0.5rem;
  font-family: var(--font-body);
}

.pros ul, .cons ul {
  list-style: none;
  margin-left: 0;
}

.pros li::before { content: "\2713 "; color: var(--color-primary); font-weight: bold; }
.cons li::before { content: "\2717 "; color: #c0392b; font-weight: bold; }

/* Star Rating */
.star-rating {
  color: var(--color-star);
  font-size: 1.3rem;
  letter-spacing: 2px;
  margin-bottom: 0.5rem;
}

/* CTA Box */
.cta-box {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: #fff;
  padding: 2rem;
  border-radius: var(--radius);
  text-align: center;
  margin: 2rem 0;
}

.cta-box h3 { color: #fff; margin-top: 0; }
.cta-box p { color: rgba(255,255,255,0.9); }

/* --- Product Buy Box (inline affiliate CTA) --- */
.buy-box {
  border: 2px solid var(--color-accent);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin: 2rem 0;
  text-align: center;
  background: linear-gradient(180deg, #fffdf5 0%, #fff 100%);
  box-shadow: var(--shadow);
}

.buy-box .buy-box-badge {
  display: inline-block;
  background: var(--color-accent);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.25rem 0.75rem;
  border-radius: 50px;
  margin-bottom: 0.75rem;
}

.buy-box .buy-box-title {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  color: var(--color-primary-dark);
  margin-bottom: 0.25rem;
}

.buy-box .buy-box-rating {
  color: var(--color-star);
  font-size: 1.1rem;
  letter-spacing: 2px;
  margin-bottom: 0.5rem;
}

.buy-box .buy-box-price {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 0.75rem;
}

.buy-box .buy-box-price span {
  font-size: 0.85rem;
  font-weight: 400;
  color: var(--color-text-muted);
}

.buy-box .btn-amazon {
  display: inline-block;
  background: #f0a500;
  color: #111;
  font-size: 1.05rem;
  font-weight: 700;
  padding: 0.85rem 2.5rem;
  border-radius: var(--radius);
  transition: background var(--transition), transform var(--transition);
}

.buy-box .btn-amazon:hover {
  background: #d4910a;
  transform: translateY(-1px);
  color: #111;
}

.buy-box .buy-box-note {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-top: 0.5rem;
  margin-bottom: 0;
}

/* --- Inline CTA Banner (for blog posts) --- */
.cta-banner {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-primary);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 1.25rem 1.5rem;
  margin: 2rem 0;
}

.cta-banner p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--color-text);
}

.cta-banner p strong { color: var(--color-primary-dark); }

.cta-banner .btn-amazon {
  display: inline-block;
  background: #f0a500;
  color: #111;
  font-weight: 700;
  padding: 0.6rem 1.5rem;
  border-radius: var(--radius);
  font-size: 0.95rem;
  white-space: nowrap;
  transition: background var(--transition);
}

.cta-banner .btn-amazon:hover { background: #d4910a; color: #111; }

@media (min-width: 600px) {
  .cta-banner { flex-direction: row; justify-content: space-between; }
}

/* --- Sticky Bottom CTA Bar --- */
.sticky-cta {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--color-primary-dark);
  color: #fff;
  padding: 0.65rem 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  z-index: 99;
  box-shadow: 0 -2px 10px rgba(0,0,0,0.15);
  transform: translateY(100%);
  transition: transform 0.3s ease;
}

.sticky-cta.visible { transform: translateY(0); }

.sticky-cta p {
  margin: 0;
  font-size: 0.88rem;
  font-weight: 500;
}

.sticky-cta .btn-amazon {
  display: inline-block;
  background: #f0a500;
  color: #111;
  font-weight: 700;
  padding: 0.5rem 1.25rem;
  border-radius: var(--radius);
  font-size: 0.88rem;
  white-space: nowrap;
  transition: background var(--transition);
}

.sticky-cta .btn-amazon:hover { background: #d4910a; color: #111; }

/* --- Comparison Table --- */
.comparison-table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.88rem;
  overflow-x: auto;
  display: block;
}

.comparison-table thead th {
  background: var(--color-primary);
  color: #fff;
  padding: 0.65rem 0.75rem;
  text-align: left;
  font-weight: 600;
  font-size: 0.85rem;
}

.comparison-table td {
  padding: 0.6rem 0.75rem;
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
}

.comparison-table tr:nth-child(even) { background: var(--color-bg-alt); }

/* --- FAQ Section --- */
.faq-list { margin: 1rem 0; }

.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  margin-bottom: 0.75rem;
  overflow: hidden;
}

.faq-question {
  width: 100%;
  text-align: left;
  background: var(--color-bg-alt);
  border: none;
  padding: 1rem 1.25rem;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-body);
}

.faq-question::after {
  content: "+";
  font-size: 1.3rem;
  font-weight: 300;
  color: var(--color-primary);
  transition: transform var(--transition);
}

.faq-item.open .faq-question::after {
  content: "\2212";
}

.faq-answer {
  display: none;
  padding: 1rem 1.25rem;
  font-size: 0.95rem;
  color: var(--color-text-light);
  line-height: 1.7;
}

.faq-item.open .faq-answer { display: block; }

/* --- Video Embed --- */
.video-embed {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
  border-radius: var(--radius);
  margin: 1.5rem 0;
  background: #000;
}

.video-embed iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

/* --- Newsletter --- */
.newsletter {
  background: var(--color-primary-dark);
  color: #fff;
  padding: 2.5rem 0;
  text-align: center;
}

.newsletter h2 { color: #fff; margin-top: 0; }
.newsletter p { color: rgba(255,255,255,0.85); }

.newsletter-form {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  max-width: 420px;
  margin: 1rem auto 0;
}

.newsletter-form input[type="email"] {
  padding: 0.75rem 1rem;
  border: 2px solid rgba(255,255,255,0.3);
  border-radius: var(--radius);
  background: rgba(255,255,255,0.1);
  color: #fff;
  font-size: 1rem;
}

.newsletter-form input[type="email"]::placeholder { color: rgba(255,255,255,0.6); }

.newsletter-form input[type="email"]:focus {
  outline: none;
  border-color: var(--color-accent);
}

/* --- About Snippet (Homepage) --- */
.about-snippet {
  display: grid;
  gap: 1.5rem;
  align-items: center;
}

.about-snippet-img {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: var(--color-bg-alt);
  border: 3px solid var(--color-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  font-size: 0.8rem;
  margin: 0 auto;
}

/* --- Contact Form --- */
.contact-form {
  max-width: 600px;
  margin: 0 auto;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.35rem;
  font-weight: 600;
  font-size: 0.92rem;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.7rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--color-text);
  transition: border-color var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
}

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

/* --- Footer --- */
.site-footer {
  background: var(--color-bg-dark);
  color: rgba(255,255,255,0.8);
  padding: 2.5rem 0 1.5rem;
  font-size: 0.9rem;
}

.footer-grid {
  display: grid;
  gap: 2rem;
}

.footer-col h4 {
  color: #fff;
  font-family: var(--font-body);
  margin-bottom: 0.75rem;
  font-size: 1rem;
}

.footer-col ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-col li { margin-bottom: 0.4rem; }

.footer-col a {
  color: rgba(255,255,255,0.7);
  font-size: 0.88rem;
}

.footer-col a:hover { color: #fff; }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.15);
  margin-top: 2rem;
  padding-top: 1.25rem;
  text-align: center;
  font-size: 0.82rem;
  color: rgba(255,255,255,0.5);
}

/* --- Blog List Page --- */
.blog-list { list-style: none; margin: 0; padding: 0; }

.blog-list li {
  border-bottom: 1px solid var(--color-border);
  padding: 1.5rem 0;
}

.blog-list li:last-child { border-bottom: none; }

.blog-list h3 { margin-top: 0; }

.blog-list .card-meta { margin-bottom: 0.4rem; }

/* --- Article Page --- */
.article-header {
  padding: 2rem 0 1rem;
}

.article-header h1 { margin-bottom: 0.5rem; }

.article-meta {
  font-size: 0.88rem;
  color: var(--color-text-muted);
  margin-bottom: 1.5rem;
}

.article-content {
  max-width: 800px;
  margin: 0 auto;
  padding-bottom: 2rem;
}

.article-content h2 { border-bottom: 2px solid var(--color-bg-alt); padding-bottom: 0.4rem; }

.article-content blockquote {
  border-left: 4px solid var(--color-primary-light);
  padding: 0.75rem 1.25rem;
  margin: 1.25rem 0;
  background: var(--color-bg-alt);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-style: italic;
  color: var(--color-text-light);
}

.article-content a { text-decoration: underline; }

/* Related posts box */
.related-posts {
  background: var(--color-bg-alt);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-top: 2rem;
}

.related-posts h3 { margin-top: 0; }
.related-posts ul { margin-bottom: 0; }

/* --- Page Header (for About, Contact, etc.) --- */
.page-header {
  background: var(--color-bg-alt);
  padding: 2.5rem 0;
  text-align: center;
  border-bottom: 1px solid var(--color-border);
}

.page-header h1 { margin-bottom: 0.5rem; }

.page-header p {
  color: var(--color-text-light);
  max-width: 600px;
  margin: 0 auto;
}

/* --- Responsive: Tablet (600px+) --- */
@media (min-width: 600px) {
  h1 { font-size: 2.4rem; }
  h2 { font-size: 1.7rem; }

  .hero { padding: 4rem 0; }
  .hero h1 { font-size: 2.5rem; }

  .card-grid { grid-template-columns: repeat(2, 1fr); }

  .pros-cons { grid-template-columns: 1fr 1fr; }

  .newsletter-form { flex-direction: row; }

  .newsletter-form input[type="email"] { flex: 1; }

  .footer-grid { grid-template-columns: repeat(2, 1fr); }

  .comparison-table { display: table; }
}

/* --- Responsive: Desktop (900px+) --- */
@media (min-width: 900px) {
  .container { padding: 0 2rem; }

  h1 { font-size: 2.6rem; }

  .hero { padding: 5rem 0; }
  .hero h1 { font-size: 2.8rem; }

  /* Desktop nav */
  .nav-toggle { display: none; }

  .main-nav {
    display: block;
    position: static;
    background: none;
    border: none;
    box-shadow: none;
  }

  .main-nav ul { display: flex; gap: 0.25rem; }

  .main-nav li { border: none; }

  .main-nav a {
    padding: 0.5rem 0.85rem;
    border-radius: var(--radius);
  }

  .card-grid { grid-template-columns: repeat(3, 1fr); }

  .product-spotlight { grid-template-columns: 1fr 1fr; }

  .about-snippet { grid-template-columns: auto 1fr; }
  .about-snippet-img { margin: 0; }

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