/* Palo Alto CA Plumbing Experts - shared theme.
   Visual identity preserved from the approved D18 design reference
   (tokens, Syne/Inter pairing, left-border cards with the lime title sweep,
   tinted band alternation, ruled h2, two-column area lists, details FAQ,
   blue CTA band, 1.4/1/1/1 footer, mobile sticky call bar).

   Batch 0 fixes folded in:
   - 8 classes that D18 used but never styled now have real rules
     (.prose .lede .view-all .footer-phone .nav-caret .nav-phone-icon
      .nav-phone-label .has-dropdown)
   - .table-wrap added (D18 had no table pattern; the Cost page needs one)
   - dropdowns reachable by keyboard via :focus-within
   - heading reveal is opt-in: headings are visible by default and only
     animate once JS adds .reveal-ready, so no JS means no hidden headings
   - theme colour and footer brand normalised onto the token set
   - clamp() on headings instead of one hard 767px jump
   - 44px minimum tap targets
*/

:root{
  --bg:#FFFFFF;
  --blue:#0052FF;
  --dark:#1A1A1A;
  --lime:#E8FF00;
  --card:#F4F7FF;
  --maxw:1120px;
  --prose:860px;
  --line:#e6e6e6;
  --line-tint:#dde3fa;
  --muted:#555;
  --muted-soft:#777;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:'Inter',system-ui,-apple-system,'Segoe UI',sans-serif;
  color:var(--dark);
  background:var(--bg);
  line-height:1.65;
  font-size:17px;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--blue)}

.skip-link{position:absolute;left:-999px;top:0;z-index:200;background:var(--blue);color:#fff;padding:.6rem 1rem;font-weight:700;text-decoration:none}
.skip-link:focus{left:0}

/* ---------- masthead ---------- */
.masthead{background:#fff;border-bottom:1px solid var(--line)}
.masthead-in{max-width:var(--maxw);margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:.7rem 1.25rem}
.brand{font-family:'Syne',sans-serif;font-weight:800;font-size:1.1rem;color:var(--dark);text-decoration:none;line-height:1.2}
.brand{display:inline-flex;align-items:center;gap:.55rem}
.brand-text span{color:var(--blue)}
/* Logo placeholder: Stage 2 drops an <img> in here (PLUMBING_STANDING_RULES 2).
   Sized now so the asset lands without a layout change. */
.brand-logo{display:inline-block;flex:0 0 auto;width:34px;height:34px;border-radius:8px;background:var(--blue);opacity:.18}
.brand-logo img{width:100%;height:100%;object-fit:contain;display:block}
.masthead-tag{font-size:.78rem;color:var(--muted-soft)}

/* ---------- nav ---------- */
.nav{background:#fff;border-bottom:1px solid var(--line);position:relative;z-index:70}
.nav-in{max-width:var(--maxw);margin:0 auto;display:flex;align-items:center;padding:0 1.25rem}
.nav-toggle{display:none}
.nav-list{list-style:none;margin:0;padding:0;display:flex;flex:1;flex-wrap:wrap}
.nav-item{position:relative;display:flex}
.nav-item.has-dropdown>.nav-link{padding-right:.6rem}
.nav-link{
  display:inline-flex;align-items:center;gap:.25rem;
  padding:.85rem;min-height:44px;
  color:var(--dark);text-decoration:none;font-size:.82rem;font-weight:600;
  border:0;background:none;cursor:pointer;font-family:inherit;
}
.nav-link:hover{color:var(--blue)}
.nav-caret{font-size:.6rem;line-height:1;transition:transform .15s}
.nav-item.has-dropdown:hover .nav-caret,
.nav-item.has-dropdown:focus-within .nav-caret{transform:rotate(180deg)}
.dropdown{
  position:absolute;top:100%;left:0;z-index:80;min-width:272px;
  background:#fff;border:1px solid var(--line);
  box-shadow:0 14px 30px rgba(0,0,0,.08);padding:.3rem;display:none;
}
.nav-item:hover>.dropdown,
.nav-item:focus-within>.dropdown{display:block}
.dropdown a{display:block;padding:.6rem;min-height:44px;color:var(--dark);text-decoration:none;font-size:.85rem;font-weight:600}
.dropdown a:hover,.dropdown a:focus{background:var(--card)}
.dropdown .view-all{border-top:1px solid var(--line);margin-top:.2rem;color:var(--blue);font-weight:700}
.nav-phone{
  margin-left:auto;display:inline-flex;align-items:center;gap:.5rem;
  padding:.6rem 1rem;min-height:44px;
  background:var(--blue);color:#fff;border-radius:4px;text-decoration:none;font-weight:700;
}
.nav-phone:hover{background:var(--dark)}
.nav-phone-icon{font-size:.95rem;line-height:1}
.nav-phone-label{font-size:.85rem;letter-spacing:.01em}

/* ---------- layout ---------- */
.container{max-width:var(--maxw);margin:0 auto;padding:0 1.25rem}
.section{padding:3rem 0}
.hero{background:#fff;padding:3.4rem 0 2.2rem}
.eyebrow{font-size:.78rem;letter-spacing:.1em;text-transform:uppercase;color:var(--blue);font-weight:700;margin:0}
.hero-actions{display:flex;flex-wrap:wrap;gap:.8rem}
.visually-hidden{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.stack-top{margin-top:1.3rem}
.note{font-size:.93rem;color:var(--muted)}
.note-tight{font-size:.9rem;margin-bottom:0}
.band{background:var(--card);border-top:1px solid var(--line-tint);border-bottom:1px solid var(--line-tint)}

/* Centered boxed body-copy container (Section 4B). This is the class D18
   referenced but never styled. */
.prose{
  max-width:var(--prose);margin:0 auto;
  background:#fff;border:1px solid var(--line);border-radius:8px;
  padding:1.6rem 1.75rem;
}
.band .prose{box-shadow:0 1px 2px rgba(26,26,26,.04)}
.prose>h2:first-child,.prose>h3:first-child{margin-top:0}
.lede{font-size:1.1rem;color:var(--muted);max-width:68ch}

/* ---------- type ---------- */
/* H1 floor sized from measurement, not taste: in Syne 800 the widest single
   words in this site's planned H1s ("Professorville", "Replacement") are
   ~1,097px at 100px, so they only fit a 288px content box (320px viewport)
   at <= 26.2px. A 32px floor overflowed the page by 47px. 7.6vw keeps every
   measured word inside the box from 320px up and still reaches 56px by ~740px.
   overflow-wrap is a safety net for words not yet measured, not the fix. */
h1{
  font-family:'Syne',sans-serif;font-weight:800;
  font-size:clamp(25px,7.6vw,56px);line-height:1.08;
  margin:.5rem 0 1rem;color:var(--dark);max-width:22ch;
  overflow-wrap:break-word;hyphens:auto;
}
h2{font-family:'Syne',sans-serif;font-weight:800;font-size:clamp(1.4rem,2.6vw,1.8rem);color:var(--dark);margin:2rem 0 .8rem;line-height:1.2;overflow-wrap:break-word}
h3{font-family:'Syne',sans-serif;font-weight:800;font-size:1.05rem;margin:1.5rem 0 .4rem;color:var(--dark)}
h2.ruled{border-bottom:2px solid var(--card);padding-bottom:.5rem}
.band h2.ruled{border-bottom-color:#fff}
p{margin:0 0 1.1rem}
ul.ticks{list-style:none;margin:0 0 1.2rem;padding:0}
ul.ticks li{position:relative;padding-left:1.4rem;margin-bottom:.5rem}
ul.ticks li::before{content:"";position:absolute;left:0;top:.6em;width:.55rem;height:.55rem;background:var(--blue);border-radius:2px}
ol.steps{margin:0 0 1.2rem;padding-left:1.3rem}
ol.steps li{margin-bottom:.5rem}

/* Heading reveal: visible by default. JS adds .reveal-ready only when it can
   actually animate, so headings never depend on JS to be seen. */
.reveal-ready h2{opacity:0;transform:translateY(24px);transition:opacity .5s ease,transform .5s ease}
.reveal-ready h2.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal-ready h2{opacity:1!important;transform:none!important;transition:none!important}
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
  padding:.85rem 1.6rem;border-radius:6px;text-decoration:none;font-weight:700;
  min-height:48px;border:2px solid transparent;font-family:inherit;
}
.btn-accent{background:var(--blue);color:#fff}
.btn-accent:hover{background:var(--lime);color:var(--dark)}
.btn-ghost{background:#fff;color:var(--dark);border-color:var(--dark)}
.btn-ghost:hover{background:var(--dark);color:#fff}
.cta-inline{
  margin:1.6rem auto;max-width:var(--prose);
  background:var(--card);border:1px solid var(--line-tint);border-radius:8px;
  padding:1.1rem 1.25rem;display:flex;flex-wrap:wrap;align-items:center;gap:.9rem;
}
.cta-inline p{margin:0;font-weight:600;flex:1 1 16rem;min-width:0}

/* ---------- marquee (static DOM, JS only duplicates for seamless loop) ---------- */
.marquee{overflow:hidden;background:var(--dark);padding:.9rem 0}
.marquee-track{display:flex;gap:3rem;white-space:nowrap;font-family:'Syne',sans-serif;font-weight:800;color:#fff;text-transform:uppercase;font-size:.95rem;padding-left:1.25rem}
.marquee-anim .marquee-track{animation:marquee 26s linear infinite}
@keyframes marquee{from{transform:translateX(0)}to{transform:translateX(-50%)}}
@media (prefers-reduced-motion:reduce){.marquee-anim .marquee-track{animation:none}}

/* ---------- cards ---------- */
.grid{display:grid;gap:1.1rem}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.card{
  background:#fff;border-left:3px solid var(--blue);
  border-top:1px solid var(--line);border-right:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:1.2rem;border-radius:6px;
}
.card h3{margin:0 0 .4rem}
.card h3 a{
  color:var(--dark);text-decoration:none;
  background-image:linear-gradient(var(--lime),var(--lime));
  background-repeat:no-repeat;background-size:0% 100%;background-position:0 100%;
  transition:background-size .3s;padding:0 .1rem;
}
.card:hover h3 a,.card h3 a:focus{background-size:100% 100%}
.card p{font-size:.94rem;color:var(--muted);margin:0 0 .6rem}
/* unscoped: .card-link is also used standalone outside a .card (FAQ section),
   and a .card-scoped rule left that instance without a 44px hit area. */
.card-link{display:inline-flex;align-items:center;min-height:44px;font-weight:700;font-size:.88rem;color:var(--blue);text-decoration:none}
.card-link:hover{text-decoration:underline}
.card .urgent-tag{display:inline-block;font-size:.7rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--blue);margin-bottom:.35rem}

/* ---------- feature blocks ---------- */
.feature{margin:0 0 1.4rem;padding-bottom:1.2rem;border-bottom:1px solid var(--line)}
.feature:last-child{border-bottom:0;padding-bottom:0}

/* ---------- wordcloud (static DOM) ---------- */
.wordcloud{display:flex;flex-wrap:wrap;gap:.6rem 1rem;align-items:baseline;margin:1rem 0 1.6rem}
.wordcloud span{font-family:'Syne',sans-serif;font-weight:800;color:var(--blue);transition:transform .15s,color .15s}
.wordcloud span:nth-child(3n){color:var(--dark)}

/* ---------- image slots ---------- */
.image-slot{
  margin:1.5rem auto;border-radius:6px;overflow:hidden;
  background:linear-gradient(135deg,#f3f4f6,#e5e7eb);
  display:flex;align-items:center;justify-content:center;
  color:#6b7280;font-size:.875rem;
}
.image-slot span{padding:1rem;text-align:center}

/* ---------- tables ---------- */
.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;margin:0 0 1.3rem;border:1px solid var(--line);border-radius:8px}
.table-wrap table{border-collapse:collapse;width:100%;font-size:.93rem;min-width:30rem}
.table-wrap th,.table-wrap td{text-align:left;padding:.7rem .85rem;border-bottom:1px solid var(--line);vertical-align:top}
.table-wrap thead th{background:var(--card);font-family:'Syne',sans-serif;font-weight:800;font-size:.85rem}
.table-wrap tbody tr:last-child td{border-bottom:0}
/* Narrow screens: a horizontally scrolling table hid its right-hand column
   with no visual cue (found on the sewer page: "Your responsibility" was off
   screen). Each row becomes a labelled card instead, so every column is read.
   The real <thead> stays in the DOM, visually hidden, for screen readers. */
@media (max-width:600px){
  .table-wrap{overflow:visible;border:0;border-radius:0}
  .table-wrap table{min-width:0}
  .table-wrap thead{position:absolute;width:1px;height:1px;margin:-1px;overflow:hidden;clip:rect(0 0 0 0)}
  .table-wrap tbody tr{display:block;background:#fff;border:1px solid var(--line);border-left:3px solid var(--blue);border-radius:6px;margin:0 0 .8rem}
  .table-wrap tbody td{display:block;padding:.55rem .85rem;border-bottom:1px solid var(--line)}
  /* the desktop rule strips borders from the last ROW; on mobile each row is a
     card, so restore dividers inside the last card and drop only each card's
     final divider */
  .table-wrap tbody tr:last-child td{border-bottom:1px solid var(--line)}
  .table-wrap tbody tr td:last-child,
  .table-wrap tbody tr:last-child td:last-child{border-bottom:0}
  .table-wrap td::before{content:attr(data-label);display:block;font-family:'Syne',sans-serif;font-weight:800;font-size:.72rem;letter-spacing:.04em;text-transform:uppercase;color:var(--blue);margin-bottom:.15rem}
}

/* ---------- FAQ ---------- */
.faq details{border:1px solid var(--line);border-radius:6px;margin:0 0 .7rem;background:#fff}
.faq summary{cursor:pointer;padding:.9rem 1rem;min-height:44px;font-weight:700;list-style:none;display:flex;justify-content:space-between;gap:1rem;font-family:'Syne',sans-serif}
.faq summary::-webkit-details-marker{display:none}
.faq-more{margin:.2rem 0 0}
.faq summary::after{content:"+";color:var(--blue);font-weight:800}
.faq details[open] summary::after{content:"-"}
.faq .faq-body{padding:0 1rem .9rem}
.faq .faq-body p:last-child{margin-bottom:0}

/* ---------- area lists ---------- */
.area-cols{columns:2;column-gap:2rem}
.area-cols ul{list-style:none;margin:0;padding:0}
.area-cols li{margin-bottom:.35rem;break-inside:avoid}
.area-cols a{color:var(--blue);text-decoration:none;font-weight:600;font-size:.92rem}
.area-cols a:hover{text-decoration:underline}
.zip-card{background:#fff;border:1px solid var(--line-tint);border-left:3px solid var(--blue);border-radius:6px;padding:1.1rem 1.25rem;margin:1.2rem 0}
.zip-card h3{margin-top:0}
.prose p,.prose li{overflow-wrap:anywhere}
.contact-card{background:#fff;border:1px solid var(--line-tint);border-left:3px solid var(--blue);border-radius:6px;padding:1.1rem 1.25rem;margin:1.2rem 0}
.contact-card dl{margin:0;display:grid;grid-template-columns:minmax(5.5rem,auto) 1fr;gap:.7rem 1.2rem}
.contact-card dt{font-weight:700}
.contact-card dd{margin:0;overflow-wrap:anywhere}
.contact-card a{min-height:44px;display:inline-flex;align-items:center}
@media (max-width:480px){.contact-card dl{grid-template-columns:1fr;gap:.15rem}.contact-card dd{margin-bottom:.6rem}}
.zip-list{font-weight:700;letter-spacing:.02em}

/* ---------- CTA band ---------- */
.cta-band{background:var(--blue);color:#fff}
.cta-band h2{color:#fff;font-size:clamp(1.6rem,3.4vw,2.2rem)}
.cta-band p{color:#e0e9ff}
.cta-band .btn-ghost{background:transparent;color:#fff;border-color:#fff}
.cta-band .btn-ghost:hover{background:#fff;color:var(--blue)}

/* ---------- breadcrumbs ---------- */
.crumbs{font-size:.85rem;padding:.9rem 0 0;color:var(--muted-soft)}
.crumbs a{color:var(--blue);text-decoration:none}
.crumbs a:hover{text-decoration:underline}

/* ---------- footer ---------- */
.site-footer{background:var(--dark);color:#ccc}
.site-footer .container{padding-top:2.4rem;padding-bottom:1.4rem}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:1.6rem}
.footer-brand .brand{color:#fff;display:inline-flex;margin-bottom:.6rem}
.footer-brand .brand-text span{color:var(--lime)}
.footer-brand .brand-logo{background:#fff;opacity:.22}
.footer-brand p{font-size:.9rem;color:#bbb}
.footer-phone{display:inline-block;color:#fff;font-weight:700;text-decoration:none;font-size:1.05rem;min-height:44px;line-height:44px}
.footer-phone:hover{color:var(--lime)}
.footer-mail{display:inline-block;color:#ccc;font-size:.88rem;word-break:break-all}
.site-footer h3{color:var(--lime);font-size:.85rem;text-transform:uppercase;letter-spacing:.06em;font-family:'Syne',sans-serif;margin:0 0 .6rem}
.site-footer ul{list-style:none;margin:0;padding:0}
.site-footer li{margin-bottom:.35rem}
.site-footer a{color:#ccc;text-decoration:none;font-size:.88rem}
.site-footer a:hover{color:#fff;text-decoration:underline}
.footer-nap{font-size:.85rem;color:#bbb;margin-top:.6rem}
.footer-legal{border-top:1px solid #333;margin-top:1.6rem;padding-top:1rem;font-size:.78rem;color:#8d8d8d;line-height:1.6}
.footer-legal p{margin:0 0 .6rem}
.footer-legal p:last-child{margin-bottom:0}
.footer-disclaimer{max-width:72ch}

/* ---------- sticky call bar ---------- */
.sticky-cta{display:none;position:fixed;left:0;right:0;bottom:0;z-index:90;background:var(--blue)}
.sticky-cta a{display:flex;align-items:center;justify-content:center;gap:.5rem;padding:.85rem;min-height:48px;color:#fff;text-decoration:none;font-weight:700}

/* ---------- responsive ---------- */
@media (max-width:900px){
  .footer-grid{grid-template-columns:1fr 1fr}
  .grid-3{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:767px){
  .nav-in{flex-wrap:wrap;padding:0 1rem}
  .nav-toggle{
    display:inline-flex;align-items:center;gap:.5rem;background:none;border:0;
    color:var(--dark);font-family:inherit;font-weight:700;padding:.75rem 0;min-height:44px;cursor:pointer;
  }
  .nav-list{display:none;flex-direction:column;width:100%;flex-basis:100%;border-top:1px solid var(--line)}
  .nav-list.open{display:flex}
  .nav-item{display:block;width:100%}
  .nav-link{width:100%;justify-content:space-between}
  .dropdown{position:static;display:none;min-width:0;box-shadow:none;border:0;border-left:3px solid var(--card);margin:0 0 .4rem .85rem;padding:0}
  .nav-item.open>.dropdown{display:block}
  .nav-item:hover>.dropdown,.nav-item:focus-within>.dropdown{display:none}
  .nav-item.open:hover>.dropdown,.nav-item.open:focus-within>.dropdown{display:block}
  .nav-phone{margin:0 0 .6rem auto}
  .grid-2,.grid-3{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .area-cols{columns:1}
  .prose{padding:1.25rem 1.1rem;border-radius:6px}
  .sticky-cta{display:block}
  body{padding-bottom:56px}
  .section{padding:2.2rem 0}
}
@media (max-width:380px){
  .container,.masthead-in{padding-left:1rem;padding-right:1rem}
  .wordcloud span{font-size:1rem!important}
}

:focus-visible{outline:3px solid var(--blue);outline-offset:2px}

/* Maps (keyless embeds) and the schematic coverage map */
.map-embed{margin:1.5rem 0}
.map-frame{position:relative;aspect-ratio:3/2;max-width:100%;border:1px solid var(--line-tint);border-radius:6px;overflow:hidden;background:#eef2f6}
.map-frame iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.map-link{margin:.5rem 0 0;font-size:.9rem}
.covmap{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.4fr);gap:1.5rem;align-items:start;margin:1.2rem 0}
.covmap-list ul{list-style:none;margin:0 0 1rem;padding:0}
.covmap-list li{margin:0 0 .35rem}
.chip-row{display:flex;flex-wrap:wrap;gap:.4rem;margin:.5rem 0 1rem;padding:0;list-style:none}
.chip-row li{margin:0;padding:.25rem .65rem;border:1px solid var(--line-tint);border-radius:999px;background:#fff;font-weight:600;font-size:.9rem}
.covmap-callout{border-left:3px solid var(--blue);background:#fff;padding:.8rem 1rem;border-radius:6px;margin:0}
.covmap-callout p{margin:0 0 .4rem}
.pinmap{position:relative;max-width:100%}
.pinmap svg{display:block;width:100%;height:auto;border:1px solid var(--line-tint);border-radius:6px;background:#f4f7fa}
.pinmap .pin{position:absolute;display:flex;align-items:center;justify-content:center;min-width:44px;min-height:44px;transform:translate(-50%,-50%);text-decoration:none}
.pinmap .pin span{position:absolute;left:50%;top:50%;transform:translateX(-50%);margin-top:12px;white-space:nowrap;font-size:.8rem;font-weight:600;background:#fff;border:1px solid var(--line-tint);border-radius:4px;padding:0 .35rem}
.pinmap .pin:focus-visible{outline:3px solid var(--blue);outline-offset:2px}
.pin-dot{display:block;width:16px;height:16px;border-radius:50%;background:var(--blue,#1b5aa6);border:2px solid #fff;box-shadow:0 0 0 1px rgba(0,0,0,.25)}
.pin-dot.is-adjacent{background:#6b7785}
.pinmap-caption{font-size:.85rem;margin:.4rem 0 0}
@media (max-width:760px){.covmap{grid-template-columns:minmax(0,1fr)}}

/* ---------- stage 2: photographs and brand ---------- */
.brand-logo{width:auto;height:auto;border-radius:0;background:none;opacity:1;display:inline-flex;align-items:center}
.brand-logo img{display:block;width:auto;height:58px;max-width:100%;object-fit:contain}
.footer-brand .brand-logo{background:#fff;opacity:1;padding:.55rem .8rem;border-radius:10px}
.footer-brand .brand-logo img{height:48px}
@media(max-width:600px){.brand-logo img{height:44px}}
.photo{margin:1.6rem auto;max-width:100%}
.photo img{display:block;width:100%;height:auto;border-radius:8px;object-fit:contain;background:#eef1f5}
.photo figcaption{margin:.55rem .2rem 0;font-size:.88rem;line-height:1.45;color:#4b5563}
.photo-hero{margin-top:1.4rem}
.photo-hero img{aspect-ratio:16/9;object-fit:cover}
@media(max-width:600px){.photo-hero img{aspect-ratio:4/3}}

/* ---------- batch 6: tap targets ---------- */
.crumbs a,.crumbs span{display:inline-block;padding:.35rem 0}
.site-footer li a{display:inline-block;padding:.3rem 0;min-height:24px}
.footer-mail{padding:.6rem 0;min-height:44px}
@media(max-width:767px){
  .site-footer li{margin-bottom:0}
  .site-footer li a{display:flex;align-items:center;min-height:44px;padding:.2rem 0}
}