/* ============================================
   Our Body Health — shared stylesheet
   Concept: the body's daily rhythm (dawn > noon > dusk > night)
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,400;9..144,600;9..144,700&family=Work+Sans:wght@400;500;600&family=JetBrains+Mono:wght@500&display=swap');

:root{
  --teal:      #2C4E7C;
  --teal-dark: #1E3757;
  --ochre:     #C68A3E;
  --ochre-lt:  #E0A85C;
  --cream:     #F5F7FA;
  --cream-2:   #E8EDF3;
  --ink:       #202B3D;
  --ink-soft:  #4C5A70;
  --line:      #D3DCE6;

  --arc: linear-gradient(90deg, #3D7EBF 0%, #2C4E7C 33%, #16324F 66%, #0E2138 100%);

  --display: 'Fraunces', Georgia, serif;
  --body:    'Work Sans', -apple-system, sans-serif;
  --mono:    'JetBrains Mono', monospace;
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }

body{
  margin: 0;
  background: var(--cream);
  color: var(--ink);
  font-family: var(--body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

.eyebrow{
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ochre);
  font-weight: 500;
}

h1, h2, h3{
  font-family: var(--display);
  font-weight: 600;
  line-height: 1.15;
  margin: 0;
  color: var(--teal-dark);
}

.wrap{
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Header ---------- */
.site-header{
  background: var(--teal);
  color: var(--cream);
  position: sticky;
  top: 0;
  z-index: 50;
}
.site-header .wrap{
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.logo{
  font-family: var(--display);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--cream);
  text-decoration: none;
  letter-spacing: -0.01em;
}
.logo span{ color: var(--ochre-lt); }
nav.main-nav{ display: flex; gap: 28px; }
nav.main-nav a{
  color: var(--cream);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
  opacity: 0.85;
  transition: opacity 0.15s;
}
nav.main-nav a:hover{ opacity: 1; }

/* ---------- Day-arc divider (signature element) ---------- */
.day-arc{
  height: 4px;
  width: 100%;
  background: var(--arc);
}

/* ---------- Hero ---------- */
.hero{
  padding: 88px 0 64px;
  text-align: center;
}
.hero h1{
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  max-width: 780px;
  margin: 18px auto 0;
}
.hero p.lede{
  max-width: 560px;
  margin: 20px auto 0;
  color: var(--ink-soft);
  font-size: 1.08rem;
}

/* ---------- Category rhythm cards ---------- */
.rhythm-section{ padding: 40px 0 72px; }
.rhythm-grid{
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 32px;
}
.rhythm-card{
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 26px 22px;
  text-decoration: none;
  color: var(--ink);
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}
.rhythm-card:hover{
  transform: translateY(-3px);
  box-shadow: 0 10px 24px rgba(31,74,69,0.1);
}
.rhythm-card .time{
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.rhythm-card h3{
  font-size: 1.2rem;
  margin: 10px 0 8px;
}
.rhythm-card p{
  font-size: 0.9rem;
  color: var(--ink-soft);
  margin: 0;
}
.rhythm-card .dot{
  width: 10px; height: 10px; border-radius: 50%;
  display: inline-block; margin-bottom: 12px;
}
.dot.dawn{ background: #3D7EBF; }
.dot.noon{ background: var(--ochre); }
.dot.dusk{ background: #16324F; }
.dot.night{ background: #0E2138; }

/* ---------- Article list ---------- */
.latest-section{ padding: 20px 0 80px; }
.section-head{
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 28px;
}
.section-head h2{ font-size: 1.7rem; }

.article-grid{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.article-card{
  text-decoration: none;
  color: var(--ink);
}
.article-card .thumb{
  aspect-ratio: 4/3;
  background: var(--cream-2);
  border-radius: 8px;
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--ink-soft);
  font-family: var(--mono);
  font-size: 0.75rem;
}
.article-card .cat{
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ochre);
}
.article-card h3{
  font-size: 1.1rem;
  margin: 8px 0 6px;
}
.article-card p{
  font-size: 0.88rem;
  color: var(--ink-soft);
  margin: 0;
}

/* ---------- Ad slot ---------- */
.ad-slot{
  background: var(--cream-2);
  border: 1px dashed var(--line);
  border-radius: 8px;
  padding: 18px;
  text-align: center;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin: 40px 0;
}

/* ---------- Footer ---------- */
.site-footer{
  background: var(--teal-dark);
  color: var(--cream);
  padding: 40px 0;
  margin-top: 40px;
}
.site-footer .wrap{
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  opacity: 0.75;
}

/* ---------- Article page ---------- */
.article-header{
  padding: 56px 0 28px;
  text-align: center;
  border-bottom: 1px solid var(--line);
}
.article-header .cat{
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ochre);
}
.article-header h1{
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  max-width: 760px;
  margin: 16px auto 12px;
}
.article-meta{
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--ink-soft);
}
.article-body{
  max-width: 700px;
  margin: 0 auto;
  padding: 48px 24px 20px;
  font-size: 1.08rem;
}
.article-body h2{
  font-size: 1.5rem;
  margin: 40px 0 16px;
}
.article-body p{ margin: 0 0 22px; color: var(--ink); }
.article-body .drop{
  float: left;
  font-family: var(--display);
  font-size: 3.6rem;
  line-height: 0.8;
  padding: 6px 8px 0 0;
  color: var(--teal);
}

.hero-img{
  max-width: 780px;
  margin: 32px auto 0;
  padding: 0 24px;
}
.hero-img img{
  width: 100%;
  border-radius: 10px;
  aspect-ratio: 16/9;
  object-fit: cover;
  background: var(--cream-2);
}
.hero-img .credit{
  font-family: var(--mono);
  font-size: 0.68rem;
  color: var(--ink-soft);
  margin-top: 8px;
  text-align: right;
}

/* ---------- Responsive ---------- */
@media (max-width: 860px){
  nav.main-nav{ display: none; }
  .rhythm-grid{ grid-template-columns: repeat(2, 1fr); }
  .article-grid{ grid-template-columns: 1fr; }
  .site-footer .wrap{ flex-direction: column; gap: 8px; text-align: center; }
}

@media (prefers-reduced-motion: reduce){
  *{ transition: none !important; scroll-behavior: auto !important; }
}