/* Red Light Guide — site styles v1 (2026-10-26)
   Placeholder brand. Warm red/amber on cream, charcoal ink. Mobile-first.
   No photos, no faces/bodies, no medical stock. Written fresh (not derived from any other site). */
:root{
  --cream:#FBF6EE;--cream-2:#F4EADB;--paper:#FFFDF9;
  --char:#1E1714;--char-2:#2E2420;--ink:#2A211D;--muted:#6E605A;
  --red:#C2362B;--red-d:#9A2219;--red-l:#FBE4DF;
  --amber:#E8962E;--amber-l:#FCEFD9;
  --line:#E9DCCB;--radius:14px;--max:760px;
  --font:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --serif:Georgia,"Iowan Old Style","Times New Roman",serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%}
body{margin:0;background:var(--cream);color:var(--ink);font:1.0625rem/1.7 var(--font)}
a{color:var(--red-d);text-underline-offset:.2em}
a:hover{color:var(--char)}
:focus-visible{outline:3px solid var(--amber);outline-offset:2px;border-radius:4px}
.skip{position:absolute;left:-999px;top:0;background:var(--char);color:#fff;padding:.5rem 1rem;z-index:10}
.skip:focus{left:.5rem}
.wrap{max-width:var(--max);margin:0 auto;padding:0 1.1rem}

/* header: dark band with glowing dot logo (pure CSS, no imagery) */
header.site{background:var(--char);color:#F6EBDD;border-bottom:3px solid var(--red)}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;gap:1rem;min-height:3.5rem;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:.6rem;color:#FFF5E8;text-decoration:none;font-weight:700;letter-spacing:.01em}
.dot{width:16px;height:16px;border-radius:50%;background:radial-gradient(circle at 40% 40%,#FFD39A 0,var(--amber) 35%,var(--red) 70%);box-shadow:0 0 12px 3px rgba(232,150,46,.55)}
nav.top{display:flex;gap:.25rem;overflow-x:auto}
nav.top a{color:#EAD9C6;text-decoration:none;padding:.55rem .75rem;border-radius:999px;font-size:.95rem;white-space:nowrap}
nav.top a:hover,nav.top a[aria-current=page]{background:var(--char-2);color:#fff}

main{padding:1.5rem 0 2.5rem}
h1,h2,h3{font-family:var(--serif);color:var(--char);line-height:1.25}
h1{font-size:clamp(1.75rem,5.5vw,2.5rem);margin:.4rem 0 1rem}
h2{font-size:clamp(1.3rem,4vw,1.6rem);margin:2.2rem 0 .7rem;padding-top:.4rem;border-top:1px solid var(--line)}
h3{font-size:1.15rem;margin:1.4rem 0 .4rem}
p,ul,ol{margin:0 0 1rem}
li{margin:.3rem 0}
.kicker{font-size:.8rem;letter-spacing:.12em;text-transform:uppercase;color:var(--red);font-weight:700}

/* answer-first lede */
.lede{background:var(--paper);border-left:5px solid var(--red);border-radius:0 var(--radius) var(--radius) 0;padding:1rem 1.15rem;font-size:1.1rem;box-shadow:0 1px 0 var(--line)}
.lede p:last-child{margin:0}
.meta{font-size:.9rem;color:var(--muted)}

/* formula + callouts */
.formula{font-family:var(--mono);background:var(--char);color:#FFE3BF;border-radius:var(--radius);padding:1rem 1.1rem;overflow-x:auto;font-size:1rem}
.callout{background:var(--amber-l);border:1px solid #F2D3A2;border-radius:var(--radius);padding:.9rem 1.1rem;margin:1.2rem 0}
.callout.warn{background:var(--red-l);border-color:#F3C1B8}
.callout p:last-child{margin:0}

/* tables */
.tablewrap{overflow-x:auto;margin:0 0 1.2rem;border:1px solid var(--line);border-radius:var(--radius);background:var(--paper)}
table{border-collapse:collapse;width:100%;min-width:480px;font-size:.95rem}
th,td{text-align:left;padding:.6rem .75rem;border-bottom:1px solid var(--line);vertical-align:top}
th{background:var(--cream-2);color:var(--char);font-weight:700}
tr:last-child td{border-bottom:0}

/* dose band bar (CSS-only visual) */
.bands{display:grid;gap:.5rem;margin:1rem 0 1.4rem}
.band{display:grid;grid-template-columns:7.5rem 1fr;align-items:center;gap:.6rem;font-size:.9rem}
.bar{height:14px;border-radius:999px;background:var(--cream-2);position:relative;overflow:hidden}
.bar span{position:absolute;top:0;bottom:0;border-radius:999px}
.bar .skin{left:2%;width:11%;background:linear-gradient(90deg,var(--amber),var(--red))}
.bar .deep{left:11%;width:67%;background:linear-gradient(90deg,var(--red),var(--red-d))}

/* cards */
.cards{display:grid;gap:.9rem;grid-template-columns:1fr}
.card{display:block;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:1rem 1.1rem;color:var(--ink);text-decoration:none;border-top:4px solid var(--amber)}
.card strong{display:block;font-family:var(--serif);font-size:1.15rem;color:var(--char);margin-bottom:.25rem}
.card:hover{border-top-color:var(--red);transform:translateY(-1px)}
.card.soon{opacity:.7;border-top-color:var(--line)}

/* CTA (placeholder, disabled) */
.cta{background:var(--char);color:#F4E6D6;border-radius:var(--radius);padding:1.2rem 1.15rem;margin:2rem 0}
.cta h2{color:#FFF3E3;border:0;margin-top:0;padding:0}
.cta form{display:flex;flex-wrap:wrap;gap:.5rem;margin:.6rem 0}
.cta input{flex:1 1 14rem;min-height:46px;padding:.5rem .8rem;border-radius:10px;border:1px solid #5A4A42;background:#2B221E;color:#ccc}
.cta button{min-height:46px;padding:.5rem 1.1rem;border:0;border-radius:10px;background:var(--amber);color:var(--char);font-weight:700}
.cta button[disabled],.cta input[disabled]{opacity:.6;cursor:not-allowed}
.cta small{color:#CDB9A7}

/* FAQ */
.faq details{background:var(--paper);border:1px solid var(--line);border-radius:10px;margin:.5rem 0;padding:.2rem .9rem}
.faq summary{cursor:pointer;font-weight:650;padding:.6rem 0;min-height:44px;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::before{content:"+";display:inline-block;width:1.2rem;color:var(--red);font-weight:800}
.faq details[open] summary::before{content:"–"}

.sources li{font-size:.92rem}
footer.site{background:var(--cream-2);border-top:1px solid var(--line);padding:1.4rem 0;font-size:.9rem;color:var(--muted)}
footer.site strong{color:var(--char)}

@media (min-width:700px){
  .cards{grid-template-columns:1fr 1fr}
  main{padding-top:2.2rem}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important}}
@media print{
  header.site,nav,.cta,footer.site,.skip{display:none!important}
  body{background:#fff;font-size:11pt}
  .formula{background:#fff;color:#000;border:1px solid #999}
  a{color:#000;text-decoration:none}
}

/* ---- v2 (2026-10-26): diagrams, Top 10 tables, guided advisor ---- */
figure.diagram{margin:1.4rem 0;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:.6rem .6rem .8rem}
figure.diagram img{display:block;width:100%;height:auto}
figure.diagram figcaption{font-size:.88rem;color:var(--muted);padding:.5rem .4rem 0}
.top10 table{min-width:860px;font-size:.9rem}
.top10 td:first-child,.top10 th:first-child{text-align:center;width:2.2rem;font-weight:800;color:var(--red-d)}
.flag{display:inline-block;font-size:.72rem;font-weight:700;letter-spacing:.02em;padding:.05rem .45rem;border-radius:999px;background:var(--cream-2);color:var(--muted);white-space:nowrap;margin:.1rem 0}
.flag.gap{background:var(--red-l);color:var(--red-d)}
.flag.src{background:var(--amber-l);color:#7A4A0E}
.picks{display:grid;gap:.8rem;margin:1rem 0}
.pick{background:var(--paper);border:1px solid var(--line);border-left:5px solid var(--amber);border-radius:0 var(--radius) var(--radius) 0;padding:.8rem 1rem}
.pick h3{margin:0 0 .3rem;font-size:1.08rem}
.pick p{margin:0 0 .4rem;font-size:.95rem}
.pick p:last-child{margin:0}
/* advisor */
.advisor{background:var(--paper);border:1px solid var(--line);border-top:5px solid var(--red);border-radius:var(--radius);padding:1.1rem 1.1rem 1.2rem;margin:1.6rem 0}
.advisor h2{border:0;margin-top:0;padding-top:0}
.advisor fieldset{border:0;margin:0 0 1.1rem;padding:0}
.advisor legend{font-weight:700;font-family:var(--serif);font-size:1.08rem;color:var(--char);margin-bottom:.45rem;padding:0}
.advisor .step{font-size:.75rem;letter-spacing:.1em;text-transform:uppercase;color:var(--red);font-weight:700;display:block}
.opts{display:flex;flex-wrap:wrap;gap:.45rem}
.opts label{display:flex;align-items:center;gap:.45rem;min-height:44px;padding:.45rem .85rem;border:1px solid var(--line);border-radius:999px;background:var(--cream);cursor:pointer;font-size:.95rem}
.opts input{accent-color:var(--red);margin:0}
.opts label:has(input:checked){background:var(--amber-l);border-color:var(--amber);font-weight:650}
.advisor .go{min-height:48px;padding:.6rem 1.3rem;border:0;border-radius:10px;background:var(--red);color:#fff;font-weight:700;font-size:1rem;cursor:pointer}
.advisor .go:hover{background:var(--red-d)}
.advisor .reset{background:none;border:0;color:var(--red-d);text-decoration:underline;cursor:pointer;font-size:.95rem;margin-left:.6rem}
.adv-err{color:var(--red-d);font-weight:650}
.results{margin-top:1.2rem}
.results[hidden]{display:none}
.rtype{display:grid;grid-template-columns:96px 1fr;gap:.9rem;align-items:start;background:var(--cream);border:1px solid var(--line);border-radius:var(--radius);padding:.85rem;margin:.7rem 0}
.rtype.primary{background:var(--amber-l);border-color:#F2D3A2}

.rtype h3{margin:0 0 .25rem}
.rtype .badge{display:inline-block;font-size:.72rem;font-weight:800;text-transform:uppercase;letter-spacing:.08em;color:#fff;background:var(--red);border-radius:999px;padding:.05rem .55rem;margin-bottom:.3rem}
.rtype .badge.alt{background:var(--muted)}
.rtype ul{margin:.3rem 0 .4rem;padding-left:1.1rem;font-size:.95rem}
.rtype p{font-size:.95rem;margin:0 0 .4rem}
.adv-cta{display:inline-block;margin-top:.4rem;min-height:46px;padding:.65rem 1.1rem;border-radius:10px;background:var(--char);color:#FFF3E3;font-weight:700;text-decoration:none}
.adv-cta:hover{background:var(--red-d);color:#fff}
@media (max-width:480px){.rtype{grid-template-columns:64px 1fr}}
@media print{.advisor{display:none}}
/* advisor type icon: crops one tile from diagram-device-types.svg (tiles x=36+270k, 248×340 at y=40) */
.ticon{--w:96px;width:var(--w);height:calc(var(--w) * 340 / 248);overflow:hidden;position:relative;border-radius:12px;flex:none}
.ticon img{position:absolute;max-width:none;width:calc(var(--w) * 1400 / 248);height:auto;top:calc(var(--w) * -40 / 248);left:calc(var(--w) * var(--off) / -248)}
@media (max-width:480px){.ticon{--w:64px}}
/* Top 10 tables break out of the 760px column on wide screens */
@media (min-width:1000px){.tablewrap.top10{--bw:min(1160px,calc(100vw - 48px));width:var(--bw);margin-left:calc((100% - var(--bw)) / 2)}.top10 table{min-width:0}}


/* Product thumbs (official brand photos) */
td.prodcell{width:104px;vertical-align:middle}
.prod-thumb{display:block;width:96px;height:96px;object-fit:contain;background:#fff;border:1px solid var(--line);border-radius:10px}
.pick .prod-thumb{float:left;margin:0 0.85rem 0.5rem 0}
.pick::after{content:"";display:table;clear:both}
.photo-note{margin-top:0.6rem}
@media (max-width:640px){
  .prod-thumb{width:64px;height:64px}
  td.prodcell{width:72px}
}