/* ============================================================
   THE ALLERGY WORLD — Design System
   Dr. Chandan Narwani | Pediatric Allergy & Asthma
   Signature: the "spore mark" — a hand-built family of line-art
   allergen glyphs (mite, pollen, spore, dander, husk, sting) used
   as the recurring identity element across the whole site.
   ============================================================ */

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

:root{
  /* Color — matched to the Kid's AARC logo blue */
  --ink:        #0A3552;   /* deep navy-teal, primary text/nav */
  --ink-soft:   #3B6274;
  --leaf:       #2C8C7A;   /* secondary green accent */
  --leaf-deep:  #1D6B5C;
  --sky:        #0489CC;   /* brand blue — matches logo background exactly */
  --sky-deep:   #036B9E;
  --mint:       #E9F4F1;   /* pale card fill (green-leaning) */
  --sky-tint:   #E5F3FA;   /* pale card fill (blue-leaning, logo-matched) */
  --mint-line:  #D2E8E2;
  --paper:      #F5FAFC;   /* page background — cool, not cream */
  --coral:      #E1653F;   /* warning/CTA accent, used sparingly */
  --coral-soft: #FBE7DE;
  --gold:       #C79A3C;   /* pollen accent, decorative only */
  --white:      #FFFFFF;

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

  --radius: 14px;
  --radius-sm: 8px;
  --shadow: 0 2px 24px rgba(18,56,50,0.07);
  --shadow-sm: 0 1px 8px rgba(18,56,50,0.06);
  --maxw: 1140px;
}

*{box-sizing:border-box; margin:0; padding:0;}
html{scroll-behavior:smooth;}
body{
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img{max-width:100%; display:block;}
a{color:inherit; text-decoration:none;}
ul{list-style:none;}
.wrap{max-width:var(--maxw); margin:0 auto; padding:0 24px;}

h1,h2,h3,h4{
  font-family: var(--font-display);
  font-weight:600;
  line-height:1.15;
  color: var(--ink);
  letter-spacing:-0.01em;
}
h1{font-size: clamp(2.1rem, 5vw, 3.4rem); font-weight:600;}
h2{font-size: clamp(1.6rem, 3.4vw, 2.3rem);}
h3{font-size: 1.3rem;}
p{color: var(--ink-soft);}
.eyebrow{
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--leaf-deep);
  display:inline-flex;
  align-items:center;
  gap:8px;
}
.eyebrow::before{
  content:"";
  width:16px; height:1px;
  background: var(--coral);
  display:inline-block;
}
:focus-visible{outline: 2px solid var(--coral); outline-offset: 3px;}
@media (prefers-reduced-motion: reduce){
  *{animation-duration:0.001ms !important; transition-duration:0.001ms !important;}
}

/* ---------- Header / Nav ---------- */
header.site{
  position: sticky; top:0; z-index: 50;
  background: rgba(247,249,247,0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--mint-line);
}
.nav{
  display:flex; align-items:center; justify-content:space-between;
  padding: 14px 24px; max-width: var(--maxw); margin:0 auto;
}
.brand{display:flex; align-items:center; gap:10px; font-family:var(--font-display); font-weight:700; font-size:1.15rem; color:var(--ink);}
.brand svg{flex-shrink:0;}
.brand small{display:block; font-family:var(--font-mono); font-weight:400; font-size:0.62rem; letter-spacing:0.08em; color: var(--leaf); text-transform:uppercase;}
nav.links{display:flex; align-items:center; gap: 26px;}
nav.links a{font-size:0.92rem; font-weight:500; color: var(--ink-soft); position:relative; padding: 4px 0;}
nav.links a:hover, nav.links a.active{color: var(--leaf-deep);}
nav.links a.active::after{content:""; position:absolute; left:0; right:0; bottom:-4px; height:2px; background:var(--coral); border-radius:2px;}
.has-drop{position:relative;}
.dropdown{
  position:absolute; top: 130%; left: -16px; background: var(--white);
  border:1px solid var(--mint-line); border-radius: var(--radius-sm);
  box-shadow: var(--shadow); padding: 8px; min-width: 220px;
  opacity:0; visibility:hidden; transform: translateY(-6px);
  transition: all 0.18s ease;
}
.has-drop:hover .dropdown, .has-drop:focus-within .dropdown{opacity:1; visibility:visible; transform:translateY(0);}
.dropdown a{display:block; padding:9px 12px; border-radius:6px; font-size:0.88rem;}
.dropdown a:hover{background: var(--mint); color:var(--leaf-deep);}
.nav-cta{
  background: var(--leaf); color:var(--white) !important; padding:10px 20px;
  border-radius: 30px; font-weight:600; font-size:0.88rem;
  box-shadow: var(--shadow-sm);
}
.nav-cta:hover{background: var(--leaf-deep);}
.burger{display:none; background:none; border:none; cursor:pointer; padding:6px;}
.burger span{display:block; width:24px; height:2px; background:var(--ink); margin:5px 0; border-radius:2px;}

.lang-switch{display:flex; align-items:center; gap:2px; background:var(--mint); border-radius:20px; padding:3px; margin-left:6px;}
.lang-switch a{padding:6px 11px !important; border-radius:16px; font-size:0.78rem !important; font-weight:600;}
.lang-switch a.active{background:var(--leaf); color:#fff !important;}
@media (max-width:880px){.lang-switch{margin:14px 0 0; width:100%; justify-content:flex-start;}}

/* New-patient / booking strip on home page */
.action-strip{display:grid; grid-template-columns:1fr 1fr; gap:20px;}
@media (max-width:700px){.action-strip{grid-template-columns:1fr;}}
.action-card{background:var(--white); border:1px solid var(--mint-line); border-radius:var(--radius); padding:28px; display:flex; flex-direction:column; gap:12px;}
.action-card .glyph{width:38px; height:38px; color:var(--coral);}

@media (max-width: 880px){
  nav.links{
    position:fixed; inset: 64px 0 0 0; background: var(--paper);
    flex-direction:column; align-items:flex-start; padding: 20px 24px 40px;
    gap: 4px; overflow-y:auto;
    transform: translateX(100%); transition: transform 0.25s ease;
  }
  nav.links.open{transform: translateX(0);}
  nav.links a{width:100%; padding: 12px 4px; border-bottom:1px solid var(--mint-line);}
  .dropdown{position:static; opacity:1; visibility:visible; transform:none; box-shadow:none; border:none; display:none; margin-left:12px; width:100%;}
  .has-drop.open .dropdown{display:block;}
  .burger{display:block;}
  .nav-cta{margin-top:10px;}
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex; align-items:center; gap:8px;
  padding: 13px 26px; border-radius: 30px; font-weight:600; font-size:0.95rem;
  border: 1px solid transparent; cursor:pointer; transition: all 0.15s ease;
}
.btn-primary{background: var(--leaf); color:var(--white); box-shadow: var(--shadow-sm);}
.btn-primary:hover{background:var(--leaf-deep); transform:translateY(-1px);}
.btn-ghost{background:transparent; border-color: var(--ink); color:var(--ink);}
.btn-ghost:hover{background:var(--ink); color:var(--white);}
.btn-coral{background:var(--coral); color:var(--white);}
.btn-coral:hover{background:#c8542f;}

/* ---------- Hero ---------- */
.hero{padding: 64px 0 56px; position:relative; overflow:hidden;}
.hero-grid{display:grid; grid-template-columns: 1.1fr 0.9fr; gap:48px; align-items:center;}
.hero h1{margin: 16px 0 20px;}
.hero .lede{font-size:1.12rem; max-width:46ch; margin-bottom:30px;}
.hero-actions{display:flex; gap:14px; flex-wrap:wrap;}
.hero-art{position:relative; aspect-ratio:1/1; display:flex; align-items:center; justify-content:center;}
@media (max-width:880px){.hero-grid{grid-template-columns:1fr;} .hero-art{max-width:320px; margin:0 auto;}}

/* Field-note strip: small rotating stat/finding bar under hero */
.field-strip{background: var(--ink); color: var(--white);}
.field-strip .wrap{display:flex; flex-wrap:wrap; gap: 0; padding:0;}
.field-strip .stat{flex:1; min-width:180px; padding:22px 24px; border-right:1px solid rgba(255,255,255,0.12);}
.field-strip .stat:last-child{border-right:none;}
.field-strip .stat b{display:block; font-family:var(--font-display); font-size:1.6rem; color: #B9E0D2;}
.field-strip .stat span{font-size:0.8rem; color: rgba(255,255,255,0.72);}

/* ---------- Section basics ---------- */
section{padding: 64px 0;}
section.tight{padding: 40px 0;}
.section-head{max-width:640px; margin-bottom:36px;}
.section-head h2{margin-top:10px;}
.section-head p{margin-top:12px;}
.alt-bg{background: var(--mint);}

/* ---------- Card grids ---------- */
.grid{display:grid; gap:20px;}
.grid-3{grid-template-columns:repeat(3,1fr);}
.grid-2{grid-template-columns:repeat(2,1fr);}
@media (max-width:880px){.grid-3{grid-template-columns:repeat(2,1fr);} }
@media (max-width:620px){.grid-3, .grid-2{grid-template-columns:1fr;}}

.card{
  background: var(--white); border:1px solid var(--mint-line); border-radius: var(--radius);
  padding: 26px; transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.card:hover{transform: translateY(-3px); box-shadow: var(--shadow);}
.card .glyph{width:44px; height:44px; margin-bottom:16px;}
.card .card-photo{width:100%; height:130px; object-fit:cover; border-radius:10px; margin-bottom:16px; background:var(--mint);}
.card h3{margin-bottom:8px; font-size:1.12rem;}
.card p{font-size:0.92rem;}
.card a.more{display:inline-block; margin-top:12px; font-size:0.85rem; font-weight:600; color:var(--leaf-deep);}

/* Allergen/disease index tile — used on category landing pages */
.tile{
  display:flex; gap:16px; align-items:flex-start; background:var(--white);
  border:1px solid var(--mint-line); border-radius: var(--radius); padding:22px;
}
.tile .glyph{width:40px; height:40px; flex-shrink:0; color:var(--leaf);}
.tile h3{font-size:1.05rem; margin-bottom:4px;}
.tile p{font-size:0.88rem;}

/* ---------- Article / detail page layout ---------- */
.detail-hero{background: var(--ink); color:var(--white); padding: 48px 0 40px;}
.detail-hero .eyebrow{color:#9FD9C4;}
.detail-hero .eyebrow::before{background:var(--coral);}
.detail-hero h1{color:var(--white); margin:14px 0 12px;}
.detail-hero p{color: rgba(255,255,255,0.78); max-width:60ch;}
.breadcrumb{font-size:0.82rem; color: rgba(255,255,255,0.6); margin-bottom:14px;}
.breadcrumb a{color: rgba(255,255,255,0.85);}
.breadcrumb a:hover{color:var(--white);}

.detail-body{display:grid; grid-template-columns: 2.1fr 1fr; gap:48px; padding-top:48px; align-items:start;}
@media (max-width:900px){.detail-body{grid-template-columns:1fr;}}
.detail-body h2{font-size:1.5rem; margin: 34px 0 12px;}
.detail-body h2:first-child{margin-top:0;}
.detail-body p{margin-bottom:14px;}
.detail-body ul{margin: 6px 0 18px 0;}
.detail-body li{position:relative; padding-left:22px; margin-bottom:9px; font-size:0.97rem; color:var(--ink-soft);}
.detail-body li::before{content:""; position:absolute; left:0; top:9px; width:7px; height:7px; border-radius:50%; background:var(--leaf);}

.side-card{background:var(--mint); border:1px solid var(--mint-line); border-radius: var(--radius); padding:24px; margin-bottom:20px; position:sticky; top:90px;}
.side-card h4{font-family:var(--font-mono); font-size:0.72rem; letter-spacing:0.1em; text-transform:uppercase; color:var(--leaf-deep); margin-bottom:12px;}
.side-card ul li{font-size:0.88rem; margin-bottom:10px;}
.side-card ul li a{font-weight:500;}
.side-card ul li a:hover{color:var(--leaf-deep);}

.callout{
  background: var(--coral-soft); border-left:3px solid var(--coral);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0; padding:18px 20px; margin: 22px 0;
}
.callout p{color: var(--ink); font-size:0.93rem; margin:0;}
.callout b{color:var(--coral);}

/* ---------- CTA band ---------- */
.cta-band{background: var(--leaf); color:var(--white); border-radius: 24px; padding: 48px; text-align:center; margin: 0 24px;}
.cta-band h2{color:var(--white);}
.cta-band p{color: rgba(255,255,255,0.85); max-width:52ch; margin: 12px auto 26px;}
.cta-band .btn-primary{background:var(--white); color:var(--leaf-deep);}
.cta-band .btn-primary:hover{background:var(--mint);}
.cta-actions{display:flex; gap:14px; justify-content:center; flex-wrap:wrap;}

/* ---------- Links / QR (bio-link) page ---------- */
.linkpage{max-width:440px; margin: 0 auto; padding: 56px 24px 80px; text-align:center;}
.linkpage .qr-box{background:var(--white); border:1px solid var(--mint-line); border-radius: var(--radius); padding:20px; display:inline-block; margin: 22px 0 30px; box-shadow: var(--shadow-sm);}
.linkpage .qr-box img{width:220px; height:220px;}
.link-btn{
  display:flex; align-items:center; gap:14px; width:100%;
  background:var(--white); border:1px solid var(--mint-line); border-radius: 16px;
  padding: 16px 18px; margin-bottom:12px; font-weight:600; font-size:0.97rem;
  transition: all 0.15s ease;
}
.link-btn:hover{border-color:var(--leaf); transform: translateY(-2px); box-shadow: var(--shadow-sm);}
.link-btn .ico{width:22px; height:22px; flex-shrink:0; color:var(--leaf);}

/* ---------- Footer ---------- */
footer.site{background: var(--ink); color: rgba(255,255,255,0.72); padding: 56px 0 28px; margin-top:60px;}
.foot-grid{display:grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap:32px; padding-bottom:36px; border-bottom:1px solid rgba(255,255,255,0.12);}
@media (max-width:760px){.foot-grid{grid-template-columns:1fr 1fr;}}
footer.site h4{color:var(--white); font-family:var(--font-mono); font-size:0.72rem; letter-spacing:0.1em; text-transform:uppercase; margin-bottom:16px;}
footer.site ul li{margin-bottom:9px; font-size:0.88rem;}
footer.site a:hover{color:var(--white);}
.foot-brand p{font-size:0.88rem; max-width:32ch; margin-top:10px; color:rgba(255,255,255,0.6);}
.foot-bottom{display:flex; justify-content:space-between; flex-wrap:wrap; gap:10px; padding-top:22px; font-size:0.78rem; color:rgba(255,255,255,0.5);}
.foot-social{display:flex; gap:14px;}
.foot-social a svg{width:18px; height:18px;}

.disclaimer{font-size:0.78rem; color: rgba(255,255,255,0.45); max-width:820px; margin-top:14px; line-height:1.5;}

/* ---------- Real reference photo (Wikimedia Commons etc.) ---------- */
.real-photo{margin: 26px 0; border-radius: var(--radius); overflow:hidden; border:1px solid var(--mint-line);}
.real-photo img{width:100%; height:auto; max-height:360px; object-fit:cover; display:block;}
.real-photo figcaption{background:var(--paper); padding:10px 16px; font-size:0.76rem; color:var(--ink-soft);}
.real-photo figcaption a{color:var(--sky-deep); font-weight:600;}

.brand img.logo-mark{height:44px; width:auto; border-radius:8px; flex-shrink:0;}

/* ---------- FAQ (details/summary) ---------- */
.faq-item{border-bottom:1px solid var(--mint-line); padding:18px 0;}
.faq-item summary{font-weight:600; cursor:pointer; font-size:1rem; color:var(--ink); list-style:none; display:flex; justify-content:space-between; align-items:center; gap:12px;}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:"+"; font-size:1.4rem; color:var(--sky); flex-shrink:0; line-height:1;}
.faq-item[open] summary::after{content:"–";}
.faq-item p{margin-top:12px; font-size:0.94rem;}

/* ---------- Myth vs Fact ---------- */
.myth-fact{display:grid; grid-template-columns:1fr 1fr; gap:0; border:1px solid var(--mint-line); border-radius:var(--radius); overflow:hidden; margin-bottom:16px;}
@media (max-width:640px){.myth-fact{grid-template-columns:1fr;}}
.myth-fact > div{padding:20px;}
.myth-fact .myth{background:var(--coral-soft); border-right:1px solid var(--mint-line);}
.myth-fact .fact{background:var(--sky-tint);}
@media (max-width:640px){.myth-fact .myth{border-right:none; border-bottom:1px solid var(--mint-line);}}
.myth-fact .tag{font-family:var(--font-mono); font-size:0.68rem; letter-spacing:0.08em; text-transform:uppercase; display:block; margin-bottom:8px;}
.myth-fact .myth .tag{color:var(--coral);}
.myth-fact .fact .tag{color:var(--sky-deep);}
.myth-fact p{font-size:0.9rem; color:var(--ink);}

/* ---------- "Coming soon" placeholder card (shop/blog scaffolds) ---------- */
.soon-card{border:1.5px dashed var(--mint-line); border-radius:var(--radius); padding:26px; text-align:center; color:var(--ink-soft);}
.soon-card .tag{display:inline-block; font-family:var(--font-mono); font-size:0.68rem; letter-spacing:0.08em; text-transform:uppercase; color:var(--sky-deep); background:var(--sky-tint); padding:4px 10px; border-radius:12px; margin-bottom:10px;}

/* ---------- Simple lead form (Netlify Forms compatible) ---------- */
.lead-form{background:var(--white); border:1px solid var(--mint-line); border-radius:var(--radius); padding:28px; max-width:480px;}
.lead-form label{display:block; font-size:0.82rem; font-weight:600; margin:14px 0 6px;}
.lead-form input, .lead-form select, .lead-form textarea{
  width:100%; padding:11px 13px; border:1px solid var(--mint-line); border-radius:8px;
  font-family:var(--font-body); font-size:0.94rem; background:var(--paper);
}
.lead-form button{margin-top:18px; width:100%; justify-content:center;}

/* ---------- CMS-rendered article prose ---------- */
.prose h2{font-size:1.4rem; margin:30px 0 12px;}
.prose h2:first-child{margin-top:0;}
.prose p{margin-bottom:14px;}
.prose ul{margin:6px 0 18px 22px;}
.prose li{margin-bottom:8px; font-size:0.97rem; color:var(--ink-soft);}
.prose em{color:var(--ink-soft);}

/* ---------- Product card (shop, CMS-driven) ---------- */
.product-card{background:var(--white); border:1px solid var(--mint-line); border-radius:var(--radius); overflow:hidden; display:flex; flex-direction:column;}
.product-card img{width:100%; height:170px; object-fit:cover; background:var(--mint);}
.product-card .pc-body{padding:20px; display:flex; flex-direction:column; flex:1;}
.product-card .price{font-family:var(--font-mono); color:var(--sky-deep); font-weight:600; margin:8px 0;}
.product-card .btn{margin-top:auto;}

/* Utility */
.mt-0{margin-top:0;} .center{text-align:center;}

/* ---------- Pathology diagram block ---------- */
.diagram-block{
  background: var(--sky-tint); border:1px solid #cfe3ec; border-radius: var(--radius);
  padding: 28px; margin: 26px 0;
}
.diagram-block .diagram-label{font-family:var(--font-mono); font-size:0.7rem; letter-spacing:0.1em; text-transform:uppercase; color:var(--sky-deep); display:block; margin-bottom:14px;}
.diagram-block svg{width:100%; height:auto; max-width:560px; display:block; margin:0 auto;}
.diagram-legend{display:flex; flex-wrap:wrap; gap:14px; justify-content:center; margin-top:16px;}
.diagram-legend span{display:flex; align-items:center; gap:6px; font-size:0.8rem; color:var(--ink-soft);}
.diagram-legend i{width:11px; height:11px; border-radius:3px; display:inline-block;}

/* ---------- Allergen hero glyph (large, on detail hero) ---------- */
.allergen-hero-glyph{width:96px; height:96px; color:#B9E0D2; margin-bottom:6px; opacity:0.9;}

/* ---------- Research / citation card ---------- */
.research-card{background:var(--white); border:1px solid var(--mint-line); border-left:3px solid var(--sky); border-radius:0 var(--radius-sm) var(--radius-sm) 0; padding:20px 22px; margin-bottom:16px;}
.research-card .rtag{font-family:var(--font-mono); font-size:0.68rem; letter-spacing:0.08em; text-transform:uppercase; color:var(--sky-deep);}
.research-card h4{font-size:1rem; margin:6px 0 6px;}
.research-card p{font-size:0.88rem;}
.research-card a.src{font-size:0.82rem; font-weight:600; color:var(--sky-deep);}