/* ========================================
   DIANE MERCER HEALTH — Global Styles
   Design: Editorial warmth meets medical trust
   ======================================== */

@import url('https://fonts.googleapis.com/css2?family=Lora:ital,wght@0,400;0,500;0,600;0,700;1,400;1,500&family=Source+Sans+3:wght@300;400;500;600;700&display=swap');

:root {
  /* Core palette — warm, trustworthy, approachable */
  --cream: #FAF7F2;
  --cream-dark: #F0EBE3;
  --white: #FFFFFF;
  --navy: #1B2A4A;
  --navy-light: #2D4270;
  --teal: #2A8C82;
  --teal-light: #34A89D;
  --teal-pale: #E8F5F3;
  --warm-gray: #6B6560;
  --warm-gray-light: #9B9590;
  --warm-gray-lighter: #D4CFC9;
  --text-primary: #2C2520;
  --text-secondary: #5C5550;
  --text-light: #8B8580;
  --accent-red: #C4543A;
  --accent-gold: #C49B3A;
  --border: #E5E0DA;
  
  /* Typography scale */
  --font-display: 'Lora', Georgia, serif;
  --font-body: 'Source Sans 3', 'Segoe UI', sans-serif;
  
  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2.5rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;
  
  /* Layout */
  --max-width: 1140px;
  --content-width: 720px;
  --radius: 8px;
  --radius-lg: 12px;
}

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

html { 
  font-size: 16px; 
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.7;
  color: var(--text-primary);
  background: var(--cream);
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--teal); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--teal-light); }

/* ---- Typography ---- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.3;
  color: var(--navy);
}

h1 { font-size: 2.5rem; letter-spacing: -0.02em; }
h2 { font-size: 1.75rem; letter-spacing: -0.01em; }
h3 { font-size: 1.35rem; }
h4 { font-size: 1.1rem; }

p { margin-bottom: var(--space-md); }

.label {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--teal);
}

/* ---- Layout Containers ---- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.content-narrow {
  max-width: var(--content-width);
  margin: 0 auto;
}

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

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  text-decoration: none;
}

.site-logo .logo-icon {
  width: 36px;
  height: 36px;
  background: var(--teal);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
}

.site-logo .logo-text {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--navy);
  line-height: 1.2;
}

.site-logo .logo-text span {
  display: block;
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 400;
  color: var(--warm-gray);
  letter-spacing: 0.04em;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.site-nav a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  padding: var(--space-xs) 0;
  border-bottom: 2px solid transparent;
  transition: all 0.2s;
}

.site-nav a:hover,
.site-nav a.active {
  color: var(--teal);
  border-bottom-color: var(--teal);
}

.hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-xs);
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--navy);
  margin: 5px 0;
  transition: all 0.3s;
}

/* ---- Hero Sections ---- */
.hero {
  padding: var(--space-3xl) 0;
  background: linear-gradient(180deg, var(--white) 0%, var(--cream) 100%);
}

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

.hero-home h1 {
  font-size: 3rem;
  max-width: 700px;
  margin: 0 auto var(--space-lg);
}

.hero-home .hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto var(--space-xl);
  line-height: 1.8;
}

.hero-silo {
  padding: var(--space-2xl) 0 var(--space-xl);
  background: var(--white);
  border-bottom: 1px solid var(--border);
}

.hero-silo .label {
  margin-bottom: var(--space-sm);
}

.hero-silo h1 {
  margin-bottom: var(--space-md);
}

.hero-silo .hero-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 600px;
  line-height: 1.8;
}

/* ---- Condition Category Cards ---- */
.categories-section {
  padding: var(--space-2xl) 0 var(--space-3xl);
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.section-header h2 {
  margin-bottom: var(--space-sm);
}

.section-header p {
  color: var(--text-secondary);
  font-size: 1.05rem;
}

.category-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.category-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: all 0.25s ease;
  text-decoration: none;
  display: block;
}

.category-card:hover {
  border-color: var(--teal);
  box-shadow: 0 4px 20px rgba(42, 140, 130, 0.1);
  transform: translateY(-2px);
}

.category-card .card-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: var(--space-md);
}

.category-card h3 {
  font-size: 1.15rem;
  margin-bottom: var(--space-sm);
  color: var(--navy);
}

.category-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
  line-height: 1.6;
}

.card-link {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--teal);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.card-link::after {
  content: '→';
  transition: transform 0.2s;
}

.category-card:hover .card-link::after {
  transform: translateX(3px);
}

/* Card icon color variants */
.icon-blood-sugar { background: #FEF0E7; color: #D4703A; }
.icon-neuropathy { background: #EDE8F5; color: #6B4FA0; }
.icon-weight { background: #E7F3ED; color: #3A8C5C; }
.icon-eyesight { background: #E8F0FE; color: #3A6BD4; }
.icon-blood-pressure { background: #FDE8E8; color: #C4443A; }
.icon-energy { background: #FEF8E0; color: #B8952A; }

/* ---- Article List (Silo Pages) ---- */
.article-list {
  padding: var(--space-2xl) 0 var(--space-3xl);
}

.article-list-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
}

.article-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--space-lg);
  text-decoration: none;
  display: block;
  transition: all 0.2s;
}

.article-card:hover {
  border-color: var(--teal);
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
}

.article-card .label {
  margin-bottom: var(--space-sm);
  font-size: 0.7rem;
}

.article-card h3 {
  font-size: 1.1rem;
  margin-bottom: var(--space-sm);
  color: var(--navy);
  line-height: 1.4;
}

.article-card p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
  line-height: 1.6;
}

.article-meta {
  font-size: 0.78rem;
  color: var(--text-light);
}

/* ---- Article Content Pages ---- */
.article-header {
  padding: var(--space-2xl) 0 var(--space-lg);
  background: var(--white);
  border-bottom: 1px solid var(--border);
}

.article-header .label {
  margin-bottom: var(--space-sm);
}

.article-header h1 {
  font-size: 2.2rem;
  max-width: 640px;
  margin-bottom: var(--space-md);
}

.article-byline {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding-top: var(--space-md);
  border-top: 1px solid var(--border);
  margin-top: var(--space-lg);
}

.byline-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--teal-pale);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--teal);
  font-size: 0.9rem;
}

.byline-text {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.byline-text strong {
  color: var(--text-primary);
  font-weight: 600;
}

.article-body {
  padding: var(--space-2xl) 0 var(--space-3xl);
}

.article-body h2 {
  margin-top: var(--space-xl);
  margin-bottom: var(--space-md);
  font-size: 1.5rem;
}

.article-body h3 {
  margin-top: var(--space-lg);
  margin-bottom: var(--space-sm);
}

.article-body p {
  font-size: 1.05rem;
  line-height: 1.85;
  color: var(--text-primary);
}

.article-body ul, .article-body ol {
  margin: var(--space-md) 0;
  padding-left: var(--space-lg);
}

.article-body li {
  margin-bottom: var(--space-sm);
  line-height: 1.7;
}

/* Source citations */
.sources {
  margin-top: var(--space-2xl);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--border);
}

.sources h4 {
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-light);
  margin-bottom: var(--space-md);
}

.sources ol {
  padding-left: var(--space-lg);
}

.sources li {
  font-size: 0.82rem;
  color: var(--text-light);
  margin-bottom: var(--space-xs);
  line-height: 1.5;
}

/* ---- Callout / CTA Box ---- */
.callout {
  background: var(--teal-pale);
  border: 1px solid rgba(42, 140, 130, 0.2);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  margin: var(--space-xl) 0;
  text-align: center;
}

.callout h3 {
  color: var(--navy);
  margin-bottom: var(--space-sm);
}

.callout p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  max-width: 480px;
  margin: 0 auto var(--space-lg);
}

.callout .btn {
  display: inline-block;
  background: var(--teal);
  color: var(--white);
  padding: 12px 28px;
  border-radius: 6px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: background 0.2s;
  border: none;
  cursor: pointer;
}

.callout .btn:hover {
  background: var(--teal-light);
  color: var(--white);
}

/* ---- About Page ---- */
.about-content {
  padding: var(--space-2xl) 0 var(--space-3xl);
}

.about-intro {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: var(--space-xl);
  align-items: start;
  margin-bottom: var(--space-2xl);
}

.about-photo {
  width: 200px;
  height: 240px;
  border-radius: var(--radius-lg);
  background: var(--cream-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--warm-gray-light);
  font-size: 0.85rem;
  text-align: center;
  padding: var(--space-md);
  border: 1px solid var(--border);
}

.about-text p {
  font-size: 1.05rem;
  line-height: 1.85;
}

.disclaimer-box {
  background: var(--white);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent-gold);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: var(--space-lg);
  margin: var(--space-xl) 0;
}

.disclaimer-box h4 {
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-gold);
  margin-bottom: var(--space-sm);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.disclaimer-box p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 0;
}

/* ---- Footer ---- */
.site-footer {
  background: var(--navy);
  color: rgba(255,255,255,0.7);
  padding: var(--space-2xl) 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-2xl);
}

.footer-brand .logo-text {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  color: white;
  margin-bottom: var(--space-sm);
}

.footer-brand p {
  font-size: 0.85rem;
  line-height: 1.7;
  max-width: 320px;
}

.footer-links h4 {
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: rgba(255,255,255,0.5);
  margin-bottom: var(--space-md);
}

.footer-links a {
  display: block;
  color: rgba(255,255,255,0.7);
  font-size: 0.88rem;
  padding: 3px 0;
  transition: color 0.2s;
}

.footer-links a:hover {
  color: white;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  margin-top: var(--space-xl);
  padding-top: var(--space-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.78rem;
  color: rgba(255,255,255,0.4);
}

.footer-bottom a {
  color: rgba(255,255,255,0.4);
}

.footer-bottom a:hover {
  color: rgba(255,255,255,0.7);
}

/* ---- Breadcrumbs ---- */
.breadcrumbs {
  padding: var(--space-md) 0;
  font-size: 0.82rem;
  color: var(--text-light);
}

.breadcrumbs a {
  color: var(--text-light);
}

.breadcrumbs a:hover {
  color: var(--teal);
}

.breadcrumbs span {
  margin: 0 6px;
  color: var(--warm-gray-lighter);
}

/* ---- Responsive ---- */
@media (max-width: 768px) {
  h1 { font-size: 2rem; }
  .hero-home h1 { font-size: 2.2rem; }
  
  .category-grid { grid-template-columns: 1fr; }
  .article-list-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: var(--space-xl); }
  .about-intro { grid-template-columns: 1fr; }
  .about-photo { margin: 0 auto; }
  
  .site-nav { display: none; }
  .site-nav.active {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    border-bottom: 1px solid var(--border);
    padding: var(--space-md) var(--space-lg);
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
  }
  
  .hamburger { display: block; }
  
  .hero { padding: var(--space-2xl) 0; }
  .article-header h1 { font-size: 1.75rem; }
}

@media (max-width: 480px) {
  .category-card { padding: var(--space-lg); }
  .container { padding: 0 var(--space-md); }
}

/* ---- Utility ---- */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
}

.text-center { text-align: center; }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }