/* ============================================================
   subzerorepairnovato.com — "Field Diagnostic Board" system
   Sub-Zero cold-side specialist · Novato, Marin / North Bay
   Self-hosted variable fonts · class prefix: sznv- / sz-novato
   ============================================================ */

/* ---- Self-hosted fonts (variable, latin) ---- */
@font-face{
  font-family:"Source Serif 4";
  font-style:normal;font-weight:500 700;font-display:swap;
  src:url("/assets/fonts/sourceserif4-var-latin.woff2") format("woff2");
}
@font-face{
  font-family:"Source Sans 3";
  font-style:normal;font-weight:400 700;font-display:swap;
  src:url("/assets/fonts/sourcesans3-var-latin.woff2") format("woff2");
}

/* ---- Tokens ---- */
:root{
  --ink:hsl(28,24%,14%);
  --ink-2:hsl(30,12%,33%);
  --accent:hsl(18,42%,32%);          /* rust / terracotta */
  --accent-ink:hsl(18,52%,24%);
  --action:hsl(55,58%,46%);          /* mustard */
  --action-deep:hsl(48,62%,38%);
  --surface:hsl(198,18%,96%);
  --surface-2:hsl(212,22%,90%);
  --paper:hsl(40,30%,99%);
  --line:hsl(88,16%,76%);
  --line-strong:hsl(30,14%,58%);
  --ok:hsl(130,45%,34%);
  --live:hsl(8,62%,46%);
  --mono:ui-monospace,"SFMono-Regular",Menlo,Consolas,"Liberation Mono",monospace;
  --serif:"Source Serif 4",Georgia,"Times New Roman",serif;
  --sans:"Source Sans 3",system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  --shell:1040px;
  --r-square:2px;
  --r-form:4px;
}

/* ---- Reset / base ---- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;font-family:var(--sans);font-weight:400;font-size:17px;line-height:1.62;
  color:var(--ink);background:var(--surface);
  text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;
}
img,svg,iframe{display:block;max-width:100%}
img{height:auto}
a{color:var(--accent-ink);text-underline-offset:2px}
a:hover{color:var(--accent)}
h1,h2,h3,h4{font-family:var(--serif);font-weight:600;line-height:1.16;color:var(--ink);margin:0 0 .5em;letter-spacing:-.01em}
h1{font-size:clamp(1.92rem,1.4rem + 2.2vw,2.7rem)}
h2{font-size:clamp(1.42rem,1.15rem + 1.1vw,1.85rem);margin-top:1.6em}
h3{font-size:1.18rem}
h4{font-size:1rem;font-family:var(--sans);font-weight:700;text-transform:uppercase;letter-spacing:.06em}
p{margin:0 0 1em}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
.sznv-skip{position:absolute;left:-9999px}
.sznv-skip:focus{position:fixed;left:12px;top:12px;background:var(--ink);color:#fff;padding:10px 16px;z-index:200;border-radius:var(--r-form)}

/* ---- Layout shells ---- */
.sznv-shell{max-width:var(--shell);margin-inline:auto;padding-inline:20px}
.sznv-band{padding-block:clamp(34px,5vw,56px)}
.sznv-band--tint{background:var(--paper);border-block:1px solid var(--line)}
.sznv-band--ink{background:var(--ink);color:hsl(40,18%,88%)}
.sznv-band--ink h2,.sznv-band--ink h3{color:var(--paper)}
.sznv-eyebrow{font-family:var(--mono);font-size:.74rem;letter-spacing:.16em;text-transform:uppercase;color:var(--accent);margin:0 0 .7em;font-weight:600}
.sznv-band--ink .sznv-eyebrow{color:var(--action)}
.sznv-lede{font-size:1.12rem;color:var(--ink-2)}

/* ---- Masthead (single-row nav, phone as plain text) ---- */
.sznv-masthead{background:var(--paper);border-bottom:2px solid var(--ink)}
.sznv-masthead__in{display:flex;align-items:center;gap:18px;max-width:var(--shell);margin-inline:auto;padding:10px 20px}
.sznv-brand{display:flex;align-items:center;gap:10px;font-family:var(--serif);font-weight:600;font-size:1.08rem;color:var(--ink);text-decoration:none;line-height:1.1;white-space:nowrap;min-width:0}
.sznv-brand__mark{width:44px;height:44px;object-fit:contain;flex:0 0 auto;border:1px solid var(--line);border-radius:4px;background:var(--paper)}
.sznv-brand__copy{display:block;min-width:0}
.sznv-brand b{color:var(--accent)}
.sznv-brand small{display:block;font-family:var(--mono);font-size:.62rem;letter-spacing:.08em;color:var(--ink-2);text-transform:uppercase;font-weight:400}
.sznv-nav{display:flex;gap:2px;margin-left:auto;flex-wrap:wrap}
.sznv-nav a{font-size:.84rem;color:var(--ink);text-decoration:none;padding:6px 9px;border-radius:var(--r-square)}
.sznv-nav a[aria-current="page"]{background:var(--ink);color:var(--paper)}
.sznv-nav a:hover{background:var(--surface-2)}
.sznv-tel{font-family:var(--mono);font-weight:600;font-size:.92rem;color:var(--accent-ink);text-decoration:none;white-space:nowrap;border:1px solid var(--line-strong);padding:6px 11px;border-radius:var(--r-square)}
.sznv-tel:hover{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.sznv-navtoggle{display:none}

/* ---- Crumbs ---- */
.sznv-crumbs{font-family:var(--mono);font-size:.72rem;letter-spacing:.04em;color:var(--ink-2);padding:12px 0 0}
.sznv-crumbs a{color:var(--ink-2)}
.sznv-crumbs span[aria-current]{color:var(--accent)}

/* ============================================================
   HERO — diagnostic dashboard (no full-screen hero)
   left rail (appliance type) · center answer · right rail (call+fee)
   ============================================================ */
.sznv-board{
  display:grid;gap:0;border:2px solid var(--ink);background:var(--paper);
  grid-template-columns:200px 1fr 250px;margin-top:22px;
}
.sznv-board__rail{padding:18px 16px;border-right:1px solid var(--line)}
.sznv-board__rail h2{font-family:var(--sans);font-size:.72rem;text-transform:uppercase;letter-spacing:.12em;color:var(--accent);margin:0 0 10px;font-weight:700}
.sznv-railnav{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:1px}
.sznv-railnav a{display:block;font-size:.86rem;color:var(--ink);text-decoration:none;padding:7px 8px;border-left:3px solid transparent}
.sznv-railnav a:hover{border-left-color:var(--action);background:var(--surface)}
.sznv-board__main{padding:22px 24px}
.sznv-board__main h1{margin-top:0}
.sznv-board__answer{font-size:1.04rem}
.sznv-board__cta{padding:18px 16px;border-left:1px solid var(--line);background:var(--surface);display:flex;flex-direction:column;gap:12px}
.sznv-fee{font-family:var(--mono);font-size:.78rem;color:var(--ink-2);line-height:1.5}
.sznv-fee b{display:block;font-size:1.02rem;color:var(--ink);font-family:var(--serif);font-weight:600}
.sznv-diallink{font-family:var(--mono);font-weight:600;font-size:1.18rem;color:var(--accent-ink);text-decoration:none;display:block}
.sznv-readout{font-family:var(--mono);font-size:.7rem;letter-spacing:.06em;color:var(--ink-2);border-top:1px dashed var(--line-strong);padding-top:10px;margin-top:2px}

/* ---- Search trust badge ---- */
.sznv-googlebar{display:inline-flex;align-items:center;gap:10px;max-width:100%;border:1px solid var(--line-strong);background:var(--paper);padding:8px 12px;margin:4px 0 16px;box-shadow:0 1px 0 rgba(58,43,33,.08)}
.sznv-googlemark{width:26px;height:26px;border-radius:50%;display:inline-grid;place-items:center;background:#fff;border:1px solid var(--line);color:#4285f4;font-family:Arial,Helvetica,sans-serif;font-weight:700;font-size:1.05rem;line-height:1}
.sznv-googlebar b{display:block;font-family:var(--sans);font-size:.92rem;line-height:1.1;color:var(--ink)}
.sznv-googlebar small{display:block;font-family:var(--mono);font-size:.68rem;letter-spacing:.04em;color:var(--ink-2);line-height:1.3;text-transform:uppercase}
.sznv-stars{color:var(--action-deep);letter-spacing:.08em;font-size:.98rem;margin:0 0 2px}

/* ---- Status labels (operational) ---- */
.sznv-status{font-family:var(--mono);font-size:.68rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;padding:2px 8px;border-radius:var(--r-square);border:1px solid currentColor;display:inline-flex;align-items:center;gap:6px;line-height:1.5}
.sznv-status::before{content:"";width:7px;height:7px;border-radius:50%;background:currentColor}
.sznv-status--live{color:var(--live)}
.sznv-status--warn{color:var(--action-deep)}
.sznv-status--ok{color:var(--ok)}
.sznv-status--info{color:var(--accent)}

/* ---- Buttons ---- */
.sznv-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-family:var(--sans);font-weight:700;font-size:.96rem;text-decoration:none;padding:12px 18px;border-radius:var(--r-square);border:2px solid transparent;cursor:pointer;line-height:1.1}
.sznv-btn--call{background:var(--action);color:hsl(28,40%,16%);border-color:var(--action-deep)}
.sznv-btn--call:hover{background:var(--action-deep);color:#1a1407}
.sznv-btn--book{background:var(--paper);color:var(--accent-ink);border-color:var(--accent)}
.sznv-btn--book:hover{background:var(--accent);color:var(--paper)}
.sznv-btn--ghost{background:transparent;color:var(--ink);border-color:var(--line-strong)}
.sznv-btn--ghost:hover{border-color:var(--ink);background:var(--surface-2)}
.sznv-btn .sznv-ic{width:1.05em;height:1.05em;flex:none}
.sznv-ctarow{display:flex;flex-wrap:wrap;gap:12px;align-items:center}

/* ---- Symptom router / fault cards ---- */
.sznv-faults{display:grid;gap:0;border:1px solid var(--ink);grid-template-columns:repeat(3,1fr);background:var(--ink)}
.sznv-fault{background:var(--paper);padding:18px 16px;display:flex;flex-direction:column;gap:8px}
.sznv-fault__head{display:flex;align-items:center;gap:9px;font-family:var(--serif);font-weight:600;font-size:1.05rem;color:var(--ink)}
.sznv-fault__head .sznv-ic{color:var(--accent);width:1.2em;height:1.2em;flex:none}
.sznv-fault dl{margin:0;font-size:.9rem}
.sznv-fault dt{font-family:var(--mono);font-size:.66rem;letter-spacing:.07em;text-transform:uppercase;color:var(--accent);margin-top:8px}
.sznv-fault dd{margin:1px 0 0}
.sznv-fault a{font-family:var(--mono);font-size:.78rem;margin-top:auto;padding-top:10px;text-decoration:none;color:var(--accent-ink);font-weight:600}
.sznv-fault a:hover{text-decoration:underline}
.sznv-fault a::after{content:" \2192"}

/* ---- Diagnostic / data tables ---- */
.sznv-tablewrap{overflow-x:auto;border:1px solid var(--line-strong);margin:16px 0;-webkit-overflow-scrolling:touch}
.sznv-table{width:100%;border-collapse:collapse;font-size:.9rem;min-width:560px}
.sznv-table caption{text-align:left;font-family:var(--mono);font-size:.7rem;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-2);padding:8px 12px;background:var(--surface-2)}
.sznv-table th,.sznv-table td{text-align:left;padding:9px 12px;border-bottom:1px solid var(--line);vertical-align:top}
.sznv-table thead th{background:var(--ink);color:var(--paper);font-family:var(--sans);font-size:.72rem;letter-spacing:.06em;text-transform:uppercase;position:sticky;top:0}
.sznv-table tbody tr:nth-child(even){background:var(--surface)}
.sznv-table td:first-child{font-weight:600}
.sznv-table code{font-family:var(--mono);font-size:.82em;background:var(--surface-2);padding:1px 5px;border-radius:var(--r-square)}

/* ---- Technician note (bordered, manual-style) ---- */
.sznv-note{border:1px solid var(--line-strong);border-left:4px solid var(--accent);background:var(--paper);padding:14px 18px;margin:18px 0;font-size:.94rem}
.sznv-note h4{margin:0 0 6px;color:var(--accent);letter-spacing:.05em}
.sznv-note--stop{border-left-color:var(--live)}
.sznv-note--stop h4{color:var(--live)}
.sznv-note p:last-child{margin-bottom:0}

/* ---- Answer capsule (GEO-friendly direct answer) ---- */
.sznv-capsule{border:2px solid var(--ink);background:var(--paper);padding:18px 20px;margin:18px 0;font-size:1.04rem}
.sznv-capsule p:last-child{margin-bottom:0}
.sznv-capsule__tag{font-family:var(--mono);font-size:.68rem;letter-spacing:.1em;text-transform:uppercase;color:var(--accent);display:block;margin-bottom:6px}

/* ---- Diagnostic sequence (numbered) ---- */
.sznv-seq{list-style:none;counter-reset:s;margin:18px 0;padding:0;display:grid;gap:2px}
.sznv-seq li{counter-increment:s;display:grid;grid-template-columns:42px 1fr;gap:14px;background:var(--paper);border:1px solid var(--line);padding:13px 15px;align-items:start}
.sznv-seq li::before{content:counter(s,decimal-leading-zero);font-family:var(--mono);font-weight:600;font-size:.92rem;color:var(--accent);border-right:1px solid var(--line);padding-right:8px}
.sznv-seq b{font-family:var(--serif);font-weight:600}

/* ---- Evidence / figures & diagrams ---- */
.sznv-evi{margin:18px 0;border:1px solid var(--line-strong);background:var(--paper)}
.sznv-evi__media{background:var(--surface);border-bottom:1px solid var(--line)}
.sznv-evi__media svg,.sznv-evi__media img{width:100%;height:auto;display:block}
.sznv-evi figcaption,.sznv-evi__cap{font-size:.84rem;color:var(--ink-2);padding:10px 14px}
.sznv-evi figcaption b,.sznv-evi__cap b{color:var(--ink);font-weight:600}
.sznv-evigrid{display:grid;gap:14px;grid-template-columns:repeat(3,1fr)}
.sznv-evigrid .sznv-evi{margin:0}
.sznv-imgslot{aspect-ratio:4/3;background:repeating-linear-gradient(45deg,var(--surface),var(--surface) 10px,var(--surface-2) 10px,var(--surface-2) 20px);display:flex;align-items:center;justify-content:center;text-align:center;font-family:var(--mono);font-size:.7rem;color:var(--ink-2);padding:14px;border-bottom:1px solid var(--line)}
.sznv-photo{width:min(100%,820px)}
.sznv-photo .sznv-evi__media{aspect-ratio:3/2;overflow:hidden;background:var(--surface-2)}
.sznv-photo img{width:100%;height:100%;object-fit:cover;object-position:center;display:block}
.sznv-photo--portrait img{object-position:center 42%}

/* ---- Cost slots ---- */
.sznv-costs{display:grid;gap:1px;background:var(--line);border:1px solid var(--line);grid-template-columns:repeat(3,1fr);margin:16px 0}
.sznv-cost{background:var(--paper);padding:15px 16px}
.sznv-cost b{font-family:var(--serif);font-size:1.22rem;color:var(--accent-ink);display:block}
.sznv-cost span{font-size:.86rem;color:var(--ink-2)}
.sznv-cost em{font-family:var(--mono);font-size:.62rem;letter-spacing:.05em;color:var(--ink-2);font-style:normal;text-transform:uppercase}

/* ---- Local proof strip ---- */
.sznv-locales{display:grid;gap:14px;grid-template-columns:repeat(2,1fr);margin:16px 0}
.sznv-locale{border-top:2px solid var(--accent);padding-top:10px}
.sznv-locale b{font-family:var(--serif);font-weight:600;display:block}
.sznv-locale span{font-size:.9rem;color:var(--ink-2)}

/* ---- Map ---- */
.sznv-map{border:2px solid var(--ink);background:var(--paper)}
.sznv-map iframe{width:100%;height:380px;border:0;filter:grayscale(.25) contrast(1.02)}
.sznv-map__legend{display:flex;flex-wrap:wrap;gap:8px 18px;padding:12px 16px;border-top:1px solid var(--line);font-family:var(--mono);font-size:.74rem;color:var(--ink-2)}
.sznv-map__legend b{color:var(--ink)}

/* ---- FAQ ---- */
.sznv-qa details{border:1px solid var(--line);border-left:3px solid var(--line-strong);background:var(--paper);margin:6px 0;padding:0 16px}
.sznv-qa details[open]{border-left-color:var(--accent)}
.sznv-qa summary{cursor:pointer;font-family:var(--serif);font-weight:600;font-size:1.02rem;padding:13px 0;list-style:none}
.sznv-qa summary::-webkit-details-marker{display:none}
.sznv-qa summary::before{content:"+";font-family:var(--mono);color:var(--accent);margin-right:10px;font-weight:600}
.sznv-qa details[open] summary::before{content:"\2212"}
.sznv-qa details p{margin:0 0 14px;font-size:.95rem}

/* ---- Definition / key-facts (GEO) ---- */
.sznv-facts{border:1px solid var(--line-strong);background:var(--paper);margin:18px 0}
.sznv-facts div{display:grid;grid-template-columns:200px 1fr;gap:0;border-bottom:1px solid var(--line)}
.sznv-facts div:last-child{border-bottom:0}
.sznv-facts dt{font-family:var(--mono);font-size:.74rem;letter-spacing:.05em;text-transform:uppercase;color:var(--ink-2);padding:10px 14px;background:var(--surface);margin:0}
.sznv-facts dd{margin:0;padding:10px 14px;font-size:.94rem}

/* ---- Pill list of locales (non-keyword) ---- */
.sznv-tags{list-style:none;display:flex;flex-wrap:wrap;gap:7px;padding:0;margin:10px 0}
.sznv-tags li{font-family:var(--mono);font-size:.74rem;border:1px solid var(--line);padding:3px 9px;border-radius:var(--r-square);color:var(--ink-2)}

/* ---- CTA band ---- */
.sznv-cta{border:2px solid var(--ink);background:var(--paper);padding:22px;margin:22px 0;display:grid;gap:14px;grid-template-columns:1fr auto;align-items:center}
.sznv-cta h2{margin:0}
.sznv-cta p{margin:.3em 0 0;color:var(--ink-2)}

/* ---- Prose helpers ---- */
.sznv-prose>h2:first-child{margin-top:0}
.sznv-prose ul,.sznv-prose ol{padding-left:1.2em}
.sznv-prose li{margin:.3em 0}
.sznv-split{display:grid;gap:26px;grid-template-columns:1.05fr .95fr;align-items:start}
.sznv-side{border:1px solid var(--line-strong);background:var(--paper);padding:16px 18px;font-size:.92rem}
.sznv-side h3{margin-top:0;font-size:1rem}

/* ---- Footer ---- */
.sznv-foot{background:var(--ink);color:hsl(40,14%,72%);padding:34px 0 22px;font-size:.9rem;margin-top:8px}
.sznv-foot a{color:hsl(40,16%,82%)}
.sznv-foot__grid{display:grid;gap:26px;grid-template-columns:1.4fr 1fr 1fr}
.sznv-foot h4{color:var(--paper);margin:0 0 10px}
.sznv-foot ul{list-style:none;margin:0;padding:0}
.sznv-foot li{margin:4px 0}
.sznv-foot__disc{border-top:1px solid hsl(28,18%,28%);margin-top:24px;padding-top:14px;font-size:.78rem;color:hsl(40,10%,55%)}
.sznv-office{display:block;margin-top:7px;font-size:.76rem;color:hsl(40,10%,58%);line-height:1.45}
.sznv-reviews .sznv-fault{min-height:100%}

/* ---- Form (booking guide) ---- */
.sznv-form{display:block}
.sznv-form label{display:block;font-family:var(--sans);font-weight:600;font-size:.82rem;margin:12px 0 4px;color:var(--ink)}
.sznv-form input,.sznv-form select,.sznv-form textarea{width:100%;padding:10px 11px;border:1px solid var(--line-strong);border-radius:var(--r-form);font-family:inherit;font-size:.95rem;background:var(--paper);color:var(--ink)}
.sznv-form textarea{resize:vertical;min-height:84px}
.sznv-form .sznv-form__row{display:grid;gap:12px;grid-template-columns:1fr 1fr}
.sznv-form button{margin-top:18px}
.sznv-form small{display:block;color:var(--ink-2);font-size:.78rem;margin-top:4px}
@media(max-width:640px){.sznv-form .sznv-form__row{grid-template-columns:1fr}}

/* ---- Sticky mobile call bar ---- */
.sznv-stickybar{display:none}

/* ============================================================
   Responsive
   ============================================================ */
@media(max-width:880px){
  .sznv-board{grid-template-columns:1fr}
  .sznv-board__rail{border-right:0;border-bottom:1px solid var(--line);order:2}
  .sznv-railnav{flex-direction:row;flex-wrap:wrap;gap:6px}
  .sznv-railnav a{border-left:0;border:1px solid var(--line);border-radius:var(--r-square)}
  .sznv-board__main{order:1}
  .sznv-board__cta{border-left:0;border-top:1px solid var(--line);order:3;flex-direction:row;flex-wrap:wrap;align-items:center;justify-content:space-between}
  .sznv-faults,.sznv-evigrid,.sznv-costs,.sznv-locales{grid-template-columns:1fr}
  .sznv-split{grid-template-columns:1fr}
  .sznv-foot__grid{grid-template-columns:1fr}
  .sznv-cta{grid-template-columns:1fr}
  .sznv-facts div{grid-template-columns:1fr}
  .sznv-facts dt{background:var(--surface-2)}
}
@media(max-width:640px){
  body{font-size:16px}
  .sznv-brand{white-space:normal;font-size:1rem;flex:1 1 220px}
  .sznv-brand__mark{width:40px;height:40px}
  .sznv-brand small{letter-spacing:.05em}
  .sznv-nav{display:none;width:100%;flex-direction:column;order:3}
  .sznv-nav.is-open{display:flex}
  .sznv-masthead__in{flex-wrap:wrap}
  .sznv-navtoggle{display:inline-flex;margin-left:auto;background:var(--ink);color:var(--paper);border:0;font-family:var(--mono);font-size:.8rem;padding:8px 12px;border-radius:var(--r-square);cursor:pointer}
  .sznv-tel{order:2}
  /* sticky call bar on phones */
  .sznv-stickybar{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:120;gap:0;border-top:2px solid var(--ink)}
  .sznv-stickybar a{flex:1;text-align:center;padding:13px 8px;font-family:var(--sans);font-weight:700;font-size:.92rem;text-decoration:none}
  .sznv-stickybar .s-call{background:var(--action);color:#1a1407}
  .sznv-stickybar .s-book{background:var(--ink);color:var(--paper)}
  body{padding-bottom:54px}
  .sznv-faults{grid-template-columns:1fr}
}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}
@media print{.sznv-stickybar,.sznv-navtoggle{display:none}}