:root{
  --bg:#F7F3EC; --surface:#FFFFFF; --surface-2:#EFE7D9; --ink:#241F1A; --muted:#7A7266;
  --line:#E4DAC7; --accent:#9C5A34; --accent-soft:#EEDFCB; --good:#4C6B4F; --warn:#8A5A2B;
  --radius:16px;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bg:#1B1815; --surface:#242019; --surface-2:#2E2820; --ink:#F1EBE0; --muted:#B0A491;
    --line:#3A3226; --accent:#D9A468; --accent-soft:#3A2E20;
  }
}
:root[data-theme="dark"]{
  --bg:#1B1815; --surface:#242019; --surface-2:#2E2820; --ink:#F1EBE0; --muted:#B0A491;
  --line:#3A3226; --accent:#D9A468; --accent-soft:#3A2E20;
}
*{box-sizing:border-box;}
body{margin:0;background:var(--bg);color:var(--ink);font-family:'Inter',sans-serif;-webkit-font-smoothing:antialiased;}
#app{max-width:640px;margin:0 auto;padding:28px 20px 80px;min-height:100vh;}
h1,h2,h3{font-family:'Fraunces',serif;font-weight:560;letter-spacing:-0.01em;margin:0 0 8px;}
h1{font-size:26px;line-height:1.25;}
h2{font-size:21px;line-height:1.3;}
p{margin:0 0 14px;color:var(--muted);line-height:1.55;font-size:15px;}
.kicker{font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--accent);font-weight:600;margin-bottom:10px;}
.screen{animation:fadein .4s ease both;}
@keyframes fadein{from{opacity:0;transform:translateY(8px);}to{opacity:1;transform:translateY(0);}}
.progress-wrap{margin-bottom:26px;}
.progress-meta{display:flex;justify-content:space-between;font-size:12px;color:var(--muted);margin-bottom:6px;}
.progress-track{height:3px;background:var(--line);border-radius:3px;overflow:hidden;}
.progress-fill{height:100%;background:var(--accent);border-radius:3px;transition:width .4s ease;}

.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:18px;}
.stack{display:flex;flex-direction:column;gap:10px;}

.opt{display:block;width:100%;text-align:left;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:14px 16px;font:inherit;font-size:15px;color:var(--ink);cursor:pointer;transition:border-color .15s, background .15s;}
.opt:hover{border-color:var(--accent);}
.opt.sel{border-color:var(--accent);background:var(--accent-soft);font-weight:500;}
.opt .sub{display:block;font-size:12.5px;color:var(--muted);margin-top:3px;font-weight:400;}
.opt-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;}
@media (max-width:420px){.opt-grid{grid-template-columns:1fr;}}

.pill-row{display:flex;flex-wrap:wrap;gap:8px;}
.pill{border:1px solid var(--line);background:var(--surface);border-radius:999px;padding:9px 15px;font-size:13.5px;cursor:pointer;color:var(--ink);}
.pill.sel{background:var(--ink);color:var(--bg);border-color:var(--ink);}

.visual{position:relative;border-radius:12px;overflow:hidden;background:linear-gradient(145deg,var(--surface-2),var(--line));aspect-ratio:4/3;display:flex;align-items:center;justify-content:center;}
.visual.tall{aspect-ratio:3/4;}
.visual .ph-label{font-size:11px;color:var(--muted);text-align:center;padding:14px;font-style:italic;line-height:1.4;}
.visual .tag{position:absolute;left:10px;bottom:10px;background:rgba(0,0,0,.55);color:#fff;font-size:12px;padding:4px 10px;border-radius:999px;}

.swatch-card{display:flex;align-items:center;gap:0;overflow:hidden;padding:0!important;}

.img-card{padding:0!important;overflow:hidden;cursor:pointer;}
.img-card img{display:block;width:100%;height:auto!important;min-height:0!important;max-height:none!important;max-width:100%;object-fit:contain;}
/* Cards take the image's natural height; they are never stretched to match a taller neighbour. */
.img-grid,.img-grid-3{align-items:start;}
.img-grid > .img-card,.img-grid-3 > .img-card{align-self:start;}
.img-card-label{padding:9px 12px;font-size:13.5px;font-weight:500;}
.img-card.sel{box-shadow:0 0 0 2px var(--accent) inset;}
.img-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;}
@media (max-width:430px){.img-grid{grid-template-columns:1fr;}}
/* Selected state: drawn OUTSIDE the card so it never covers the photo. */
.img-card.sel{box-shadow:0 0 0 3px var(--accent);}
.img-card.sel .img-card-label{background:var(--accent-soft);font-weight:600;}
/* Dedicated 3-across variant for screens with exactly 3 options (color/
   materials/form/furniture/density/lighting category cards). Always one
   centered row on desktop/tablet — never 2-on-top-1-below; stacks on
   narrow mobile only. (Section 2, global 3-option layout rule.) */
.img-grid-3{display:grid;grid-template-columns:repeat(6,1fr);gap:14px;}
.img-grid-3 > *{grid-column:span 3;}
/* 3 options below desktop width: two large cards, the third the SAME size,
   centered underneath. On wide screens (where the page widens, see .wide)
   all three sit in one row at a genuinely large size. */
.img-grid-3 > :nth-child(3):last-child{grid-column:2 / span 3;}
@media (min-width:1000px){
  .img-grid-3{grid-template-columns:repeat(3,1fr);}
  .img-grid-3 > *, .img-grid-3 > :nth-child(3):last-child{grid-column:auto;}
}
@media (max-width:520px){
  .img-grid-3{grid-template-columns:1fr;gap:12px;}
  .img-grid-3 > *, .img-grid-3 > :nth-child(3):last-child{grid-column:auto;}
}
/* Pages with comparison images widen so each card can be large. */
#app.wide{max-width:640px;}
@media (min-width:1000px){ #app.wide{max-width:1040px;} }
.swatch-chip{flex:1;height:54px;}
.swatch-label{padding:10px 14px;font-size:13.5px;font-weight:500;}

textarea,input[type=text]{width:100%;font:inherit;font-size:15px;padding:12px 14px;border:1px solid var(--line);border-radius:10px;background:var(--surface);color:var(--ink);resize:vertical;}
textarea{min-height:76px;}
label.field-label{font-size:13px;color:var(--muted);display:block;margin:14px 0 6px;}

.btn{display:inline-block;background:var(--ink);color:var(--bg);border:none;border-radius:999px;padding:13px 26px;font:inherit;font-size:15px;font-weight:500;cursor:pointer;}
.btn:disabled{opacity:.35;cursor:not-allowed;}
.btn.ghost{background:none;color:var(--muted);border:1px solid var(--line);}
.btn-row{display:flex;justify-content:space-between;align-items:center;margin-top:22px;gap:12px;}
.btn-row .left-links{display:flex;align-items:center;gap:14px;}
.skip{background:none;border:none;color:var(--muted);font:inherit;font-size:13.5px;cursor:pointer;text-decoration:underline;padding:8px 0;}

details.report-section{border:1px solid var(--line);border-radius:12px;margin-bottom:10px;background:var(--surface);}
details.report-section summary{cursor:pointer;padding:13px 16px;font-weight:600;font-size:14px;list-style:none;}
details.report-section summary::-webkit-details-marker{display:none;}
details.report-section summary::before{content:"▸  ";color:var(--accent);}
details.report-section[open] summary::before{content:"▾  ";}
details.report-section .body{padding:0 16px 16px;font-size:13.5px;color:var(--ink);line-height:1.6;}
.flagbox{background:var(--accent-soft);border-radius:8px;padding:10px 12px;font-size:13px;margin:8px 0;}
.kv{display:grid;grid-template-columns:150px 1fr;gap:4px 10px;font-size:13px;margin:4px 0;}
.kv b{color:var(--muted);font-weight:600;}
.tagset span{display:inline-block;background:var(--surface-2);border-radius:999px;padding:3px 10px;font-size:12px;margin:2px 4px 2px 0;}
.strength-bar{height:6px;border-radius:4px;background:var(--surface-2);overflow:hidden;margin-top:3px;}
.strength-bar i{display:block;height:100%;background:var(--accent);border-radius:4px;}
.glance-swatches{display:flex;gap:6px;margin:6px 0 12px;}
.glance-swatches span{width:34px;height:34px;border-radius:8px;display:inline-block;border:1px solid rgba(0,0,0,.08);}

.thumbrow{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px;}
.thumb{width:72px;height:72px;border-radius:8px;object-fit:cover;border:1px solid var(--line);}
.upload-box{border:1.5px dashed var(--line);border-radius:12px;padding:20px;text-align:center;cursor:pointer;display:block;}
.upload-box input{display:none;}

.closing-hero{background:linear-gradient(155deg,var(--accent-soft),var(--surface));border-radius:var(--radius);padding:40px 24px;text-align:center;margin-bottom:20px;}
.checkmark{width:52px;height:52px;border-radius:50%;background:var(--accent);color:#fff;display:flex;align-items:center;justify-content:center;font-size:24px;margin:0 auto 16px;}
.next-steps{list-style:none;padding:0;margin:18px 0;counter-reset:steps;}
.next-steps li{counter-increment:steps;padding:10px 0 10px 34px;position:relative;font-size:14px;color:var(--ink);border-top:1px solid var(--line);}
.next-steps li:first-child{border-top:none;}
.next-steps li::before{content:counter(steps);position:absolute;left:0;top:10px;width:22px;height:22px;border-radius:50%;background:var(--accent-soft);color:var(--accent);font-size:12px;font-weight:600;display:flex;align-items:center;justify-content:center;}
.copybar{display:flex;gap:10px;margin-top:14px;}

.welcome-strip{display:flex;gap:8px;margin-bottom:22px;}
.welcome-strip span{flex:1;height:46px;border-radius:10px;}

.master-wrap{position:relative;border-radius:12px;overflow:hidden;border:1px solid var(--line);}
.master-wrap img{display:block;width:100%;height:auto!important;max-width:100%;object-fit:contain;}
.master-hits{position:absolute;inset:0;}
.master-hit{position:absolute;top:13%;height:84%;width:32%;background:transparent;border:2px solid transparent;border-radius:8px;cursor:pointer;padding:0;}
.master-hit:hover{border-color:rgba(156,90,52,.45);}
.master-hit.sel{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent) inset;background:rgba(156,90,52,.06);}
.badge{display:inline-block;border-radius:999px;padding:3px 10px;font-size:12px;font-weight:600;}
.badge-done{background:#DDE9DD;color:#2F5233;}
.badge-prog{background:#F3E3C8;color:#7A4D14;}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]) .badge-done{background:#274029;color:#BFE0C0;}
  :root:not([data-theme="light"]) .badge-prog{background:#4A3515;color:#F0D6A8;}
}
.dash-head, .dash-row{display:grid;grid-template-columns:2.2fr 1.4fr 1.5fr 1fr auto;gap:12px;align-items:center;}
.dash-head{font-size:12px;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);padding:0 16px 8px;}
.dash-row{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:14px 16px;margin-bottom:8px;}
.dash-row .dc-sub{display:block;font-size:12.5px;color:var(--muted);margin-top:2px;}
@media (max-width:760px){
  .dash-head{display:none;}
  .dash-row{grid-template-columns:1fr 1fr;}
  .dash-row .dc-main{grid-column:1 / -1;}
}