/* Berg shop CSS — phone-first primitives for the solar and roof configurators (/solar, /roof) and any page that sells a
   priced option list. Load order: /assets/ui.css (tokens, reset, type, .card .out .seg .opt .field .toast .pbadge .btn)
   → /shop/shop.css → the page's own <style>, so a page can still override anything here. This file is unlayered on
   purpose: its rules beat the `@layer ui` primitives where they extend them (.out, .card).
   S5 (2026-11-04). Classes — the markup contract for /shop/shop.js, solar.html and roof.html:
     .shop            page grid. <div class="shop"><main>…steps…</main><aside>…lot facts, roof plan, itemised .out…</aside><div class="pricebar">…</div></div>
                      ≤ 900 px: one column, 16 px gutters, main → aside → .pricebar, and the .pricebar sticks to the bottom of
                      the screen (position:sticky; bottom:0 — it must stay the LAST child of .shop, and no ancestor may set
                      overflow:hidden; body{overflow-x:hidden} is fine). > 900 px: main left (rows 1–2), .pricebar top-right as a
                      card stuck under the nav, aside beneath it.
     .steps           step tracker. <ol class="steps"><li class="done">Address</li><li class="now" aria-current="step">Usage</li><li>Offset</li></ol>
                      numbered, ✓ when done, accent dot on the current step; scrolls sideways on phones (never the page).
     .step            one step panel. <section class="step" data-step="usage" hidden><h2>…</h2><p class="sub">…</p>…<div class="acts">buttons</div></section>
     .tiles .tile     option tiles. <div class="tiles cols-3"><button class="tile" aria-pressed="true"><img class="ph" src="…" alt="">
                      <b>GAF Timberline HDZ</b><small>30-year · $695/sq</small><span class="pr">$22,935</span><i class="ck"></i></button></div>
                      an unconfirmed number adds <i class="pbadge" title="Confirmed in your written proposal">Estimate</i> inside .pr (shop.js estimateBadge);
                      customers never read the word "placeholder" — that is the admin's name for the flag
                      .cols-2 | .cols-3 | .cols-4 on desktop, two columns on phones (.cols-1 stays one); .tile.off / :disabled = unavailable;
                      .tile .tag = corner label over the photo.
     .swatches .swatch colour chips. <button class="swatch" style="--c:#2b2b2b" aria-pressed="true"><i></i><span>Charcoal</span></button>
     .offsets .offset the four solar offset tiles. <button class="offset" aria-pressed="false"><b>120 %</b><small>17 panels · 7.8 kW</small>
                      <span>≈ 11,100 kWh / yr</span><em>$24,900</em></button>   (2 × 2 on phones, one row of four on desktop)
     .out             itemised lines (base rule in ui.css) + .out div.sub (indented sub-line), .out div.total, .out .pbadge
     .weeks .week     week picker. <div class="weeks"><button class="week" aria-pressed="true"><b>Week of Nov 30</b><small>Mon Nov 30 – Fri Dec 4</small></button>
                      <button class="week" disabled data-reason="held"><b>Week of Dec 7</b><small class="why">Held</small></button></div>   data-reason held | taken | blocked
     .summary         order summary / confirmation card. <div class="summary"><div class="row"><span>Week</span><b>Week of Dec 7 · held for you</b></div>
                      <div class="row total"><span>Your online price</span><b>$24,900</b></div><code class="code">BERG-XXXX-XXXX</code><p class="fine">…</p><div class="acts">…</div></div>
     .pricebar        <div class="pricebar"><div class="amt"><small>Your online price</small><b id="total">$24,900</b> <i class="pbadge" title="Confirmed in your written proposal">Estimate</i></div>
                      <div class="acts"><button class="btn accent">Continue</button></div></div>
     .stepper         <div class="stepper"><button type="button" class="dec" aria-label="Less">−</button><input type="number" inputmode="numeric"><button type="button" class="inc" aria-label="More">+</button><span class="unit">lf</span></div>
     .chips .chip     small toggles (utility, per month / per year). <div class="chips"><button class="chip" aria-pressed="true">LADWP</button>…</div>
     .addr .sugg      address bar + suggestion dropdown, the residences.html / design.html look. <div class="addr"><form><input><button class="btn">…</button></form><div class="sugg">…</div></div>
     .roofplan        <figure class="roofplan"><svg viewBox="…"></svg><figcaption><span>Faces south-west</span><span>≈ 2,763 ft²</span></figcaption></figure>
     .phases          what happens next. <ol class="phases"><li><b>Design</b><small>1–2 wk</small></li><li class="you"><b>Install</b><small>your week</small></li>…</ol>
     .film            <figure class="film"><video playsinline controls poster="…"></video></figure>   (16:9, rounded)
     .notyet          the "not in your area yet" card: <div class="card notyet"><h3>…</h3><p>…</p></div>
   Nothing in this file implies that anything is sent to anyone; copy lives in the pages. */

/* ---------- page grid (phone first) ---------- */
.shop{display:grid;grid-template-columns:minmax(0,1fr);gap:22px;max-width:1120px;margin:0 auto;padding:84px 16px 0;align-items:start}
.shop>*{min-width:0}
.shop>main{display:grid;gap:4px}
.shop>aside{display:grid;gap:16px;align-self:start}
.shop>aside h2,.shop>aside h3{font-size:15px;font-weight:700;letter-spacing:-.01em}
.shop .hd{display:grid;gap:8px;padding:8px 0 18px}
.shop .hd h1{font-size:clamp(28px,4vw,46px)}

/* ---------- price bar: sticky at the bottom on phones, a stuck card top-right on desktop ---------- */
.pricebar{position:sticky;bottom:0;z-index:12;display:flex;align-items:center;justify-content:space-between;gap:10px 14px;flex-wrap:wrap;margin:8px -16px 0;padding:12px 16px calc(12px + env(safe-area-inset-bottom,0px));background:rgba(255,255,255,.94);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-top:1px solid var(--line);box-shadow:0 -14px 30px -24px rgba(0,0,0,.35)}
.pricebar .amt{min-width:0;flex:1 1 180px;line-height:1.2}
.pricebar .amt small{display:block;font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--sub);font-weight:700;line-height:1.3;margin-bottom:2px}
.pricebar .amt b{display:inline-block;vertical-align:middle;font-size:clamp(22px,2.4vw,30px);font-weight:500;letter-spacing:-.03em;font-variant-numeric:tabular-nums;line-height:1.1;white-space:nowrap}
.pricebar .amt .pbadge{margin-left:8px;vertical-align:middle}
.pricebar .acts{display:flex;gap:8px;align-items:center;flex:none}
.pricebar .acts .btn{white-space:nowrap}
.pricebar .fine{flex-basis:100%;color:var(--sub);font-size:12px;line-height:1.4}

/* ---------- step tracker ---------- */
.steps{list-style:none;display:flex;gap:6px;overflow-x:auto;scrollbar-width:none;-webkit-overflow-scrolling:touch;padding:2px 0;margin:0 0 14px;counter-reset:step;max-width:100%}
.steps::-webkit-scrollbar{display:none}
.steps li{counter-increment:step;display:inline-flex;align-items:center;gap:7px;white-space:nowrap;font-size:12.5px;font-weight:600;color:var(--mute);padding:5px 11px 5px 5px;border:1px solid transparent;border-radius:999px;flex:none;transition:color .2s,background .2s,border-color .2s}
.steps li::before{content:counter(step);width:20px;height:20px;border-radius:50%;border:1.5px solid #cfcfca;display:grid;place-items:center;font-size:10.5px;font-weight:700;color:var(--mute);background:#fff;line-height:1}
.steps li.done{color:var(--ink);cursor:pointer}
.steps li.done::before{content:"✓";background:var(--ink);border-color:var(--ink);color:#fff}
.steps li.now{color:var(--ink);background:#fff;border-color:var(--line)}
.steps li.now::before{background:var(--accent);border-color:var(--accent);color:#fff}

/* ---------- a step panel ---------- */
.step{display:grid;gap:16px;padding:4px 0 28px;animation:stepIn .45s var(--ease) both;scroll-margin-top:96px} /* the fixed nav is ~80 px: a step scrolled into view keeps its heading below it */
.steps{scroll-margin-top:96px}
.step h2{font-size:clamp(22px,2.4vw,30px)}
.step .sub{color:var(--sub);font-size:14.5px;line-height:1.5;max-width:62ch;margin-top:-8px}
.step .acts{display:flex;gap:10px;flex-wrap:wrap;align-items:center;padding-top:6px}
.step .acts .spacer{flex:1}
.step .row{display:flex;flex-wrap:wrap;gap:10px 16px;align-items:center}
@keyframes stepIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}

/* ---------- option tiles ---------- */
.tiles{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
.tiles.cols-1{grid-template-columns:minmax(0,1fr)}
.tile{position:relative;display:grid;align-content:start;gap:4px;text-align:left;border:1px solid #e4e4e0;background:#fff;border-radius:16px;padding:12px;min-height:72px;font:inherit;color:var(--ink);cursor:pointer;overflow:hidden;transition:transform .3s var(--ease),border-color .2s,box-shadow .3s var(--ease)}
.tile:hover{border-color:#111;transform:translateY(-2px);box-shadow:0 14px 28px -18px rgba(0,0,0,.4)}
.tile:active{transform:translateY(0) scale(.985)}
.tile .ph{display:block;width:calc(100% + 24px);max-width:none;margin:-12px -12px 8px;aspect-ratio:4/3;object-fit:cover;background:#ececea}
.tile b{font-size:14px;font-weight:700;line-height:1.25;letter-spacing:-.01em;padding-right:26px;overflow-wrap:anywhere}
.tile small{color:var(--sub);font-size:12px;line-height:1.4}
.tile .pr{display:flex;align-items:center;gap:6px;flex-wrap:wrap;margin-top:4px;font-size:13.5px;font-weight:600;font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.tile .pr small{font-weight:500}
.tile .ck{position:absolute;right:10px;top:10px;width:22px;height:22px;border-radius:50%;border:1.5px solid #cfcfca;background:#fff;display:grid;place-items:center;transition:background .2s,border-color .2s}
.tile .ck::after{content:"";width:10px;height:5px;border:2px solid #fff;border-top:0;border-right:0;transform:rotate(-45deg) translate(1px,-1px);opacity:0}
.tile .ph+.ck,.tile .ph~.ck{top:auto}
.tile[aria-pressed="true"]{border-color:#111;box-shadow:inset 0 0 0 1px #111}
.tile[aria-pressed="true"] .ck{background:var(--accent);border-color:var(--accent)}
.tile[aria-pressed="true"] .ck::after{opacity:1}
.tile.off,.tile:disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}
.tile .tag{position:absolute;left:10px;top:10px;font-size:10px;letter-spacing:.08em;text-transform:uppercase;font-weight:700;background:rgba(17,17,17,.82);color:#fff;padding:3px 8px;border-radius:999px}

/* ---------- colour swatches ---------- */
.swatches{display:flex;flex-wrap:wrap;gap:10px 12px}
.swatch{display:grid;justify-items:center;gap:6px;border:0;background:transparent;font:inherit;font-size:11.5px;font-weight:600;color:var(--sub);cursor:pointer;width:66px;padding:0}
.swatch i{display:block;width:40px;height:40px;border-radius:50%;background:var(--c,#9a9a96);border:1px solid rgba(0,0,0,.12);box-shadow:0 0 0 2px #fff,0 0 0 3px transparent;transition:box-shadow .2s,transform .3s var(--ease)}
.swatch:hover i{transform:scale(1.06)}
.swatch[aria-pressed="true"]{color:var(--ink)}
.swatch[aria-pressed="true"] i{box-shadow:0 0 0 2px #fff,0 0 0 3.5px var(--ink)}
.swatch span{text-align:center;line-height:1.25;overflow-wrap:anywhere}

/* ---------- solar offset tiles ---------- */
.offsets{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
.offset{display:grid;gap:3px;text-align:left;border:1px solid #e4e4e0;background:#fff;border-radius:16px;padding:14px;font:inherit;color:var(--ink);cursor:pointer;transition:transform .3s var(--ease),border-color .2s,box-shadow .3s var(--ease)}
.offset:hover{border-color:#111;transform:translateY(-2px);box-shadow:0 14px 28px -18px rgba(0,0,0,.4)}
.offset:active{transform:translateY(0) scale(.985)}
.offset b{font-size:clamp(20px,2.2vw,26px);font-weight:500;letter-spacing:-.03em;line-height:1.1}
.offset small{color:var(--sub);font-size:12px;line-height:1.4}
.offset span{font-size:12.5px;color:var(--sub)}
.offset em{font-style:normal;font-weight:600;font-size:15px;margin-top:6px;font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.offset .pbadge{justify-self:start;margin-top:4px}
.offset[aria-pressed="true"]{border-color:#111;box-shadow:inset 0 0 0 1px #111}
.offset.off,.offset:disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}

/* ---------- itemised lines (extends ui.css .out) ---------- */
.out div.sub{padding:7px 0 7px 14px;border-bottom:0}
.out div.sub span{font-size:13px}
.out div.sub b{font-size:14px;font-weight:500}
.out div.total{border-bottom:0;padding-top:18px}
.out div.total span{color:var(--ink);font-weight:600}
.out .pbadge{margin-left:6px;vertical-align:1px}
.out .why{display:block;color:var(--mute);font-size:12px;margin-top:2px}

/* ---------- week picker ---------- */
.weeks{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
.week{display:grid;gap:3px;text-align:left;border:1px solid #e4e4e0;background:#fff;border-radius:14px;padding:12px 13px;font:inherit;color:var(--ink);cursor:pointer;transition:transform .3s var(--ease),border-color .2s,box-shadow .3s var(--ease),background .25s,color .25s}
.week:hover{border-color:#111;transform:translateY(-2px);box-shadow:0 14px 28px -18px rgba(0,0,0,.4)}
.week:active{transform:translateY(0) scale(.985)}
.week b{font-size:14px;font-weight:700;letter-spacing:-.01em}
.week small{color:var(--sub);font-size:12px;line-height:1.4}
.week .why{display:inline-flex;align-items:center;gap:5px;font-size:10.5px;letter-spacing:.06em;text-transform:uppercase;font-weight:700;color:var(--mute);margin-top:4px}
.week .why::before{content:"";width:6px;height:6px;border-radius:50%;background:#c9c9c5}
.week[data-reason="held"] .why::before{background:#e0a100}
.week[data-reason="taken"] .why::before{background:#c0392b}
.week[data-reason="blocked"] .why::before{background:#8a8a86}
.week[aria-pressed="true"]{background:#111;color:#fff;border-color:#111}
.week[aria-pressed="true"] small{color:#d4d4d0}
.week:disabled,.week.off{background:var(--bg);color:var(--mute);cursor:not-allowed;transform:none;box-shadow:none;border-style:dashed}

/* ---------- summary / confirmation ---------- */
.summary{background:#fff;border:1px solid var(--line);border-radius:18px;padding:18px;display:grid;gap:0}
.summary h2,.summary h3{margin-bottom:6px}
.summary .row{display:flex;justify-content:space-between;align-items:baseline;gap:14px;padding:11px 0;border-bottom:1px solid var(--line);font-size:14px}
.summary .row span{color:var(--sub)}
.summary .row b{font-weight:600;text-align:right;font-variant-numeric:tabular-nums;overflow-wrap:anywhere}
.summary .row.total{border-bottom:0;padding-top:16px}
.summary .row.total b{font-size:clamp(24px,2.6vw,32px);font-weight:500;letter-spacing:-.03em}
.summary .code{display:block;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:clamp(20px,3vw,26px);letter-spacing:.12em;text-align:center;background:var(--bg);border:1px dashed #cfcfca;border-radius:12px;padding:14px;margin:14px 0 4px;user-select:all;overflow-wrap:anywhere}
.summary .fine{color:var(--sub);font-size:12.5px;line-height:1.5;margin-top:12px}
.summary .acts{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}

/* ---------- small controls ---------- */
.stepper{display:inline-flex;align-items:center;border:1px solid #e2e2de;border-radius:999px;background:#fff;padding:3px;gap:2px;max-width:100%}
.stepper button{width:36px;height:36px;border:0;border-radius:50%;background:transparent;font:inherit;font-size:18px;font-weight:600;cursor:pointer;display:grid;place-items:center;transition:background .2s;flex:none}
.stepper button:hover{background:#f3f3f0}
.stepper button:disabled{opacity:.35;cursor:not-allowed}
.stepper input{width:76px;min-width:0;border:0;background:transparent;font:inherit;font-size:15px;font-weight:600;text-align:center;font-variant-numeric:tabular-nums;outline:none;-moz-appearance:textfield;appearance:textfield}
.stepper input::-webkit-outer-spin-button,.stepper input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}
.stepper .unit{color:var(--sub);font-size:12.5px;padding:0 12px 0 2px;white-space:nowrap}
.chips{display:flex;flex-wrap:wrap;gap:6px}
.chip{border:1px solid var(--line);background:#fff;color:var(--ink);font:inherit;font-weight:600;font-size:12.5px;padding:7px 12px;border-radius:999px;cursor:pointer;transition:background .15s,color .15s,border-color .15s}
.chip:hover{border-color:var(--ink)}
.chip[aria-pressed="true"]{background:var(--ink);color:#fff;border-color:var(--ink)}

/* ---------- address bar + suggestions ---------- */
.addr{position:relative;max-width:560px}
.addr form{display:flex;align-items:center;gap:6px;background:#fff;border:1px solid #e2e2de;border-radius:999px;padding:6px 6px 6px 18px;box-shadow:0 18px 44px -24px rgba(0,0,0,.35);transition:box-shadow .35s var(--ease),border-color .25s,transform .35s var(--ease)}
.addr form:focus-within{border-color:#111;box-shadow:0 22px 50px -22px rgba(0,0,0,.4);transform:translateY(-1px)}
.addr input{flex:1;min-width:0;border:0;background:transparent;font:inherit;font-size:15.5px;color:var(--ink);outline:none}
.addr input::placeholder{color:#8f8f8a}
.addr .btn{white-space:nowrap;flex:none}
.sugg{position:absolute;left:8px;right:8px;top:calc(100% + 8px);background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:0 20px 50px -18px rgba(0,0,0,.35);overflow:hidden;text-align:left;z-index:5}
.sugg button{display:block;width:100%;text-align:left;border:0;background:#fff;font:inherit;font-size:14px;padding:11px 18px;cursor:pointer;color:var(--ink);transition:background .15s}
.sugg button:hover,.sugg button[aria-selected="true"]{background:#f3f3f0}
.sugg button small{display:block;color:var(--mute);font-size:12px}
@media (max-width:480px){.addr form{padding:5px 5px 5px 14px}.addr .btn{padding:9px 14px;font-size:13px}}

/* ---------- figures ---------- */
.roofplan{margin:0;background:#fff;border:1px solid var(--line);border-radius:16px;padding:12px;display:grid;gap:8px}
.roofplan svg{display:block;width:100%;height:auto;max-height:360px}
.roofplan figcaption{font-size:12.5px;color:var(--sub);display:flex;justify-content:space-between;gap:6px 10px;flex-wrap:wrap}
.film{margin:0;border-radius:18px;overflow:hidden;background:#111;aspect-ratio:16/9;position:relative}
.film video,.film img{display:block;width:100%;height:100%;object-fit:cover}
.notyet{border-color:#f3d3a6;background:#fffaf3}
.notyet h3{margin-bottom:6px}
.notyet p{color:var(--sub);font-size:14px;line-height:1.5}

/* ---------- what happens next ---------- */
.phases{list-style:none;display:grid;gap:0;counter-reset:ph;border-left:2px solid var(--line);margin-left:9px}
.phases li{counter-increment:ph;position:relative;padding:0 0 18px 22px;font-size:14px}
.phases li::before{content:"";position:absolute;left:-7px;top:5px;width:12px;height:12px;border-radius:50%;background:#fff;border:2px solid var(--ink);box-sizing:border-box}
.phases li.you::before{background:var(--accent);border-color:var(--accent)}
.phases li b{display:block;font-weight:700;letter-spacing:-.01em}
.phases li small{display:block;color:var(--sub);font-size:12.5px;line-height:1.45;margin-top:2px}
.phases li:last-child{padding-bottom:0}

/* ---------- desktop (> 900 px) ---------- */
@media (min-width:901px){
  .shop{grid-template-columns:minmax(0,1fr) 380px;grid-template-rows:auto 1fr;column-gap:40px;row-gap:20px;padding:112px 16px 80px}
  .shop>main{grid-column:1;grid-row:1/3}
  .shop>.pricebar{grid-column:2;grid-row:1;top:84px;bottom:auto;margin:0;display:grid;gap:14px;padding:18px 20px;background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:0 18px 44px -28px rgba(0,0,0,.35);-webkit-backdrop-filter:none;backdrop-filter:none}
  .shop>.pricebar .acts{display:grid}
  .shop>.pricebar .acts .btn{width:100%}
  .shop>aside{grid-column:2;grid-row:2}
  .tiles{grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
  .tiles.cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}
  .tiles.cols-4{grid-template-columns:repeat(4,minmax(0,1fr))}
  .offsets{grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}
  .weeks{grid-template-columns:repeat(3,minmax(0,1fr))}
  .phases{grid-template-columns:repeat(5,minmax(0,1fr));border-left:0;margin-left:0;border-top:2px solid var(--line);padding-top:14px}
  .phases li{padding:0 12px 0 0}
  .phases li::before{left:0;top:-23px}
}

/* ---------- phone-only tweaks (≤ 900 px) ---------- */
@media (max-width:900px){
  .pricebar{position:sticky;bottom:0}
  .shop>main>.step:last-of-type{padding-bottom:40px}
  .tile .ph{aspect-ratio:3/2}
}

@media (prefers-reduced-motion:reduce){.tile,.offset,.week,.swatch i,.chip,.steps li,.step{transition:none;animation:none}}