/* Rotunda Electric — Technical / spec-sheet archetype
   Light paper, blueprint grid, mono accents, electric-cobalt accent. */

:root{
  --paper: oklch(0.985 0.004 250);
  --panel: oklch(0.965 0.006 250);
  --panel-2: oklch(0.945 0.008 250);
  --ink:   oklch(0.22 0.02 255);
  --muted: oklch(0.50 0.02 255);
  --faint: oklch(0.62 0.015 255);
  --rule:  oklch(0.88 0.01 255);
  --rule-strong: oklch(0.80 0.012 255);
  --accent: oklch(0.55 0.18 255);
  --accent-press: oklch(0.47 0.17 255);
  --accent-ink: oklch(0.99 0.01 255);
  --live: oklch(0.74 0.16 75);

  --font-display:"Space Grotesk", system-ui, sans-serif;
  --font-body:"IBM Plex Sans", system-ui, sans-serif;
  --font-mono:"IBM Plex Mono", ui-monospace, monospace;

  --wrap: 1140px;
  --gap: clamp(1rem, 3vw, 2rem);
  --r: 4px;
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-body);
  color:var(--ink);
  background:var(--paper);
  /* blueprint grid */
  background-image:
    linear-gradient(to right, oklch(0.88 0.01 255 / .45) 1px, transparent 1px),
    linear-gradient(to bottom, oklch(0.88 0.01 255 / .45) 1px, transparent 1px);
  background-size: 56px 56px;
  line-height:1.5;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}

.wrap{width:100%;max-width:var(--wrap);margin-inline:auto;padding-inline:clamp(1rem,4vw,2rem)}
.section{padding-block:clamp(3.2rem,7vw,5.5rem)}
.mono{font-family:var(--font-mono)}

/* ---------- type ---------- */
h1,h2,h3{font-family:var(--font-display);font-weight:700;line-height:1.05;letter-spacing:-0.02em;margin:0}
h1{font-size:clamp(2.3rem,6vw,4.1rem)}
h2{font-size:clamp(1.7rem,3.6vw,2.6rem)}
h3{font-size:clamp(1.05rem,1.6vw,1.25rem);letter-spacing:-0.01em}
p{margin:0 0 1rem}
.lead{font-size:clamp(1.05rem,1.5vw,1.2rem);color:var(--muted);max-width:56ch}

.eyebrow{
  font-family:var(--font-mono);font-size:.72rem;letter-spacing:.18em;
  text-transform:uppercase;color:var(--accent);margin:0 0 1rem;
  display:flex;align-items:center;gap:.55rem;flex-wrap:wrap;
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--accent);display:inline-block}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.55rem;
  font-family:var(--font-mono);font-size:.86rem;font-weight:500;letter-spacing:.02em;
  padding:.85rem 1.3rem;border-radius:var(--r);border:1px solid transparent;
  cursor:pointer;transition:transform .12s ease, background .15s ease, box-shadow .15s ease;
  white-space:nowrap;
}
.btn-call{background:var(--accent);color:var(--accent-ink);box-shadow:0 1px 0 var(--accent-press)}
.btn-call:hover{background:var(--accent-press)}
.btn-call:active{transform:translateY(1px)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--rule-strong)}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}
.btn-lg{padding:1rem 1.5rem;font-size:.92rem}
.phone-ico{width:14px;height:14px;display:inline-block;background:currentColor;
  -webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M6.6 10.8c1.4 2.8 3.8 5.1 6.6 6.6l2.2-2.2c.3-.3.7-.4 1-.2 1.1.4 2.3.6 3.5.6.6 0 1 .5 1 1V20c0 .6-.5 1-1 1C10.6 21 3 13.4 3 4c0-.6.5-1 1-1h3.4c.6 0 1 .5 1 1 0 1.2.2 2.4.6 3.5.1.4 0 .8-.3 1l-2.1 2.3z'/%3E%3C/svg%3E") center/contain no-repeat;
  mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M6.6 10.8c1.4 2.8 3.8 5.1 6.6 6.6l2.2-2.2c.3-.3.7-.4 1-.2 1.1.4 2.3.6 3.5.6.6 0 1 .5 1 1V20c0 .6-.5 1-1 1C10.6 21 3 13.4 3 4c0-.6.5-1 1-1h3.4c.6 0 1 .5 1 1 0 1.2.2 2.4.6 3.5.1.4 0 .8-.3 1l-2.1 2.3z'/%3E%3C/svg%3E") center/contain no-repeat;}

/* ---------- nav ---------- */
.nav{position:sticky;top:0;z-index:50;background:transparent;transition:background .25s ease, box-shadow .25s ease, border-color .25s ease;border-bottom:1px solid transparent}
.nav.scrolled{background:oklch(0.985 0.004 250 / .92);backdrop-filter:saturate(1.2) blur(8px);border-bottom-color:var(--rule);box-shadow:0 1px 0 var(--rule)}
.nav-inner{display:flex;align-items:center;gap:1.5rem;height:64px}
.brand{display:flex;align-items:center;gap:.6rem;font-family:var(--font-display);font-weight:700;font-size:1.06rem;letter-spacing:-0.01em}
.brand-mark{width:26px;height:26px;border:1.5px solid var(--accent);border-radius:3px;position:relative;flex:none}
.brand-mark::before{content:"";position:absolute;inset:5px;border-left:1.5px solid var(--accent);border-bottom:1.5px solid var(--accent)}
.brand-mark::after{content:"";position:absolute;top:5px;right:5px;width:6px;height:6px;background:var(--live);border-radius:50%}
.brand-sub{font-family:var(--font-mono);font-size:.62rem;letter-spacing:.16em;color:var(--muted);text-transform:uppercase;font-weight:400;margin-left:.1rem}
.nav-links{display:flex;gap:1.4rem;margin-left:auto;font-family:var(--font-mono);font-size:.82rem}
.nav-links a{position:relative;color:var(--muted);padding:.2rem 0;transition:color .15s}
.nav-links a:hover,.nav-links a[aria-current="page"]{color:var(--ink)}
.nav-links a::after{content:"";position:absolute;left:0;bottom:-2px;height:1.5px;width:0;background:var(--accent);transition:width .2s ease}
.nav-links a:hover::after,.nav-links a[aria-current="page"]::after{width:100%}
.nav-call{margin-left:0}
.nav-toggle{display:none}

/* ---------- hero ---------- */
.hero{padding-block:clamp(2.5rem,6vw,4.5rem) clamp(3rem,7vw,5rem);position:relative}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(1.5rem,4vw,3rem);align-items:center}
.hero-h1 .accent{color:var(--accent)}
.hero-sub{margin-top:1.3rem;font-size:clamp(1.05rem,1.5vw,1.22rem);color:var(--muted);max-width:46ch}
.hero-cta{display:flex;gap:.8rem;flex-wrap:wrap;margin-top:1.8rem;align-items:center}
.hero-meta{font-family:var(--font-mono);font-size:.78rem;color:var(--faint);margin-top:1.4rem;display:flex;gap:.55rem;flex-wrap:wrap;align-items:center}
.hero-meta .star{color:var(--live)}

/* technical photo plate */
.plate{position:relative;border:1px solid var(--rule-strong);border-radius:var(--r);background:var(--panel);padding:10px}
.plate img{border-radius:2px;width:100%;height:auto}
.plate::before,.plate::after{content:"";position:absolute;width:10px;height:10px;border:1.5px solid var(--accent)}
.plate::before{top:-1px;left:-1px;border-right:0;border-bottom:0}
.plate::after{bottom:-1px;right:-1px;border-left:0;border-top:0}
.plate-cap{font-family:var(--font-mono);font-size:.68rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);display:flex;justify-content:space-between;padding:.55rem .25rem .15rem}
.plate-cap .dot{color:var(--live)}

/* ---------- spec readout band (signature) ---------- */
.readout{background:var(--ink);color:var(--accent-ink);position:relative;overflow:hidden}
.readout .wrap{position:relative;z-index:2}
.readout .eyebrow{color:oklch(0.78 0.12 255)}
.readout .eyebrow::before{background:oklch(0.78 0.12 255)}
.readout h2{color:var(--accent-ink)}
.readout-sub{color:oklch(0.78 0.01 255);max-width:50ch}
.readtable{margin-top:2rem;border-top:1px solid oklch(0.4 0.02 255)}
.readrow{display:grid;grid-template-columns:auto 1fr auto;gap:1rem;align-items:center;
  padding:1rem .25rem;border-bottom:1px solid oklch(0.4 0.02 255);
  font-family:var(--font-mono);}
.readrow .idx{color:oklch(0.62 0.06 255);font-size:.78rem}
.readrow .label{font-size:clamp(1rem,2vw,1.35rem);font-family:var(--font-display);font-weight:600;letter-spacing:-0.01em}
.readrow .status{font-size:.74rem;letter-spacing:.12em;text-transform:uppercase;color:oklch(0.6 0.02 255);display:flex;align-items:center;gap:.5rem}
.readrow .status .tick{width:8px;height:8px;border-radius:50%;background:oklch(0.45 0.02 255);transition:background .4s ease, box-shadow .4s ease}
.readrow.live .status{color:var(--live)}
.readrow.live .status .tick{background:var(--live);box-shadow:0 0 0 3px oklch(0.74 0.16 75 / .22)}
.readline{position:absolute;left:0;top:0;height:100%;width:0;background:oklch(0.55 0.18 255 / .10);z-index:1;transition:width 1.1s cubic-bezier(.2,.7,.2,1)}

/* ---------- services grid ---------- */
.svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--rule);border:1px solid var(--rule);border-radius:var(--r);overflow:hidden;margin-top:2rem}
.svc{background:var(--paper);padding:1.6rem 1.4rem;position:relative;transition:background .15s}
.svc:hover{background:var(--panel)}
.svc .num{font-family:var(--font-mono);font-size:.72rem;color:var(--accent);letter-spacing:.1em}
.svc h3{margin:.6rem 0 .5rem}
.svc p{color:var(--muted);font-size:.92rem;margin:0}
.svc .ico{width:30px;height:30px;color:var(--accent);margin-bottom:.4rem}
.svc .ico svg{width:100%;height:100%}

/* ---------- proof / reviews ---------- */
.proof-strip{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1px;background:var(--rule);border:1px solid var(--rule);border-radius:var(--r);overflow:hidden;margin-top:2rem}
.proof{background:var(--paper);padding:1.5rem 1.4rem}
.proof blockquote{margin:0;font-size:.98rem;line-height:1.55}
.proof figcaption{font-family:var(--font-mono);font-size:.74rem;color:var(--faint);margin-top:.9rem;letter-spacing:.04em}
.proof .stars{color:var(--live);font-size:.85rem;letter-spacing:.1em;margin-bottom:.7rem}

/* ---------- feature plate band ---------- */
.feature{display:grid;grid-template-columns:1fr 1fr;gap:clamp(1.5rem,4vw,3rem);align-items:center}
.feature.rev{direction:rtl}
.feature.rev > *{direction:ltr}
.feature ul{list-style:none;padding:0;margin:1.4rem 0 0}
.feature li{font-family:var(--font-mono);font-size:.9rem;padding:.55rem 0;border-bottom:1px solid var(--rule);display:flex;gap:.7rem;align-items:baseline;color:var(--muted)}
.feature li::before{content:"→";color:var(--accent);font-family:var(--font-mono)}
.feature li b{color:var(--ink);font-weight:500}

/* ---------- CTA band ---------- */
.cta-band{background:var(--panel);border-top:1px solid var(--rule);border-bottom:1px solid var(--rule)}
.cta-inner{text-align:center;display:flex;flex-direction:column;align-items:center;gap:.4rem}
.cta-inner h2{max-width:18ch}
.cta-inner .lead{margin:.4rem 0 1.4rem}
.cta-inner .btn{margin-top:.4rem}
.cta-lic{font-family:var(--font-mono);font-size:.74rem;color:var(--faint);margin-top:1.2rem;letter-spacing:.06em}

/* ---------- footer ---------- */
.footer{background:var(--ink);color:oklch(0.82 0.01 255);padding-block:2.6rem}
.foot-inner{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:1.6rem}
.footer h4,.footer .foot-brand{font-family:var(--font-display);color:var(--accent-ink);font-weight:700;margin:0 0 .7rem;font-size:1.05rem}
.footer .foot-brand .brand-sub{color:oklch(0.6 0.02 255)}
.footer a{color:oklch(0.82 0.01 255)}
.footer a:hover{color:var(--accent-ink)}
.foot-list{list-style:none;padding:0;margin:0;font-family:var(--font-mono);font-size:.82rem;line-height:2}
.foot-h{font-family:var(--font-mono);font-size:.7rem;letter-spacing:.16em;text-transform:uppercase;color:oklch(0.6 0.02 255);margin:0 0 .7rem}
.foot-bottom{border-top:1px solid oklch(0.36 0.02 255);margin-top:2rem;padding-top:1.3rem;font-family:var(--font-mono);font-size:.72rem;color:oklch(0.58 0.02 255);display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap}

/* ---------- page header (subpages) ---------- */
.pagehead{padding-block:clamp(2.5rem,6vw,4rem) clamp(1.5rem,4vw,2.5rem);border-bottom:1px solid var(--rule)}
.pagehead .crumb{font-family:var(--font-mono);font-size:.74rem;color:var(--faint);letter-spacing:.1em;margin-bottom:1rem;text-transform:uppercase}
.pagehead h1{font-size:clamp(2rem,5vw,3.3rem)}
.pagehead p{color:var(--muted);max-width:54ch;margin-top:1rem}

/* spec tables (services) */
.spectable{width:100%;border-collapse:collapse;margin-top:1.4rem;font-size:.92rem}
.spectable caption{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);text-align:left;padding-bottom:.7rem}
.spectable th,.spectable td{text-align:left;padding:.8rem .9rem;border-bottom:1px solid var(--rule);vertical-align:top}
.spectable th{font-family:var(--font-mono);font-weight:500;color:var(--muted);width:34%;font-size:.82rem;letter-spacing:.02em}
.spectable td{color:var(--ink)}
.spectable tr:hover td,.spectable tr:hover th{background:var(--panel)}

/* service blocks */
.svc-block{padding-block:clamp(2.6rem,6vw,4rem);border-bottom:1px solid var(--rule)}
.svc-block:last-child{border-bottom:0}
.svc-block .sb-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(1.5rem,4vw,3rem);align-items:start}
.svc-block.rev .sb-grid{direction:rtl}
.svc-block.rev .sb-grid > *{direction:ltr}
.svc-block .sb-tag{font-family:var(--font-mono);font-size:.72rem;color:var(--accent);letter-spacing:.14em;text-transform:uppercase}

/* about method list */
.method{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--rule);border:1px solid var(--rule);border-radius:var(--r);overflow:hidden;margin-top:2rem}
.method .m{background:var(--paper);padding:1.6rem 1.5rem}
.method .m .mn{font-family:var(--font-mono);color:var(--accent);font-size:.78rem;letter-spacing:.08em}
.method .m h3{margin:.5rem 0 .5rem}
.method .m p{color:var(--muted);font-size:.92rem;margin:0}

/* reviews page wall */
.rev-meta{display:flex;gap:2.4rem;flex-wrap:wrap;font-family:var(--font-mono);margin-top:1.4rem}
.rev-meta .big{font-family:var(--font-display);font-size:2.4rem;font-weight:700;color:var(--ink);line-height:1}
.rev-meta .lbl{font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--faint);margin-top:.3rem}
.rev-meta .stars{color:var(--live)}
.rev-group{margin-top:2.4rem}
.rev-group > h2{font-size:clamp(1.2rem,2.4vw,1.6rem)}
.rev-group .gtag{font-family:var(--font-mono);font-size:.72rem;color:var(--accent);letter-spacing:.14em;text-transform:uppercase;display:block;margin-bottom:.4rem}
.rev-wall{columns:3 260px;column-gap:1.2rem;margin-top:1.4rem}
.rev-card{break-inside:avoid;background:var(--panel);border:1px solid var(--rule);border-radius:var(--r);padding:1.3rem;margin-bottom:1.2rem}
.rev-card .stars{color:var(--live);font-size:.82rem;letter-spacing:.1em;margin-bottom:.6rem}
.rev-card blockquote{margin:0;font-size:.95rem;line-height:1.55}
.rev-card figcaption{font-family:var(--font-mono);font-size:.74rem;color:var(--faint);margin-top:.9rem;letter-spacing:.03em}

/* contact */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(1.5rem,4vw,3rem);align-items:start;margin-top:1rem}
.contact-card{border:1px solid var(--rule);border-radius:var(--r);background:var(--panel);padding:1.8rem}
.contact-row{padding:1.1rem 0;border-bottom:1px solid var(--rule)}
.contact-row:last-child{border-bottom:0}
.contact-row .ck{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin-bottom:.4rem}
.contact-row .cv{font-family:var(--font-display);font-size:clamp(1.2rem,2.4vw,1.55rem);font-weight:600;overflow-wrap:anywhere;word-break:break-word}
.contact-row .cv a{color:var(--accent);overflow-wrap:anywhere}
.area-chips{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:1rem}
.chip{font-family:var(--font-mono);font-size:.78rem;border:1px solid var(--rule-strong);border-radius:100px;padding:.35rem .85rem;color:var(--muted)}

/* ---------- reveals ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s ease, transform .6s ease}
.reveal.in{opacity:1;transform:none}

/* ---------- watermark badge ---------- */
body[data-sample="1"] .zv-sample-badge{
  position:fixed;left:14px;bottom:14px;z-index:9999;
  font-family:var(--font-mono);font-size:.66rem;letter-spacing:.04em;
  background:var(--ink);color:var(--accent-ink);
  padding:.5rem .7rem;border-radius:4px;border:1px solid oklch(0.4 0.02 255);
  box-shadow:0 6px 20px oklch(0.22 0.02 255 / .25);max-width:240px;line-height:1.35;
}
body[data-sample="1"] .zv-sample-badge b{color:var(--live)}
body:not([data-sample="1"]) .zv-sample-badge{display:none}

/* ---------- responsive ---------- */
@media (max-width:860px){
  .hero-grid{grid-template-columns:1fr;gap:1.8rem}
  .svc-grid{grid-template-columns:repeat(2,1fr)}
  .feature,.feature.rev,.svc-block .sb-grid,.svc-block.rev .sb-grid,.method,.contact-grid{grid-template-columns:1fr;direction:ltr}
  .feature.rev > *,.svc-block.rev .sb-grid > *{direction:ltr}
  .foot-inner{grid-template-columns:1fr 1fr}
  .rev-wall{columns:2 220px}
  .nav-links{display:none}
  .nav-links.open{display:flex;position:absolute;top:64px;left:0;right:0;flex-direction:column;background:oklch(0.985 0.004 250 / .98);backdrop-filter:blur(8px);padding:1rem clamp(1rem,4vw,2rem);gap:.4rem;border-bottom:1px solid var(--rule);box-shadow:0 8px 24px oklch(0.22 0.02 255 /.12)}
  .nav-links.open a{padding:.6rem 0;border-bottom:1px solid var(--rule)}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;margin-left:auto;border:1px solid var(--rule-strong);border-radius:var(--r);background:transparent;cursor:pointer}
  .nav-toggle span{width:18px;height:1.5px;background:var(--ink);position:relative;display:block}
  .nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:1.5px;background:var(--ink)}
  .nav-toggle span::before{top:-5px}.nav-toggle span::after{top:5px}
  .nav-call{display:none}
}
@media (max-width:560px){
  .svc-grid{grid-template-columns:1fr}
  .foot-inner{grid-template-columns:1fr}
  .rev-wall{columns:1}
  .readrow{grid-template-columns:auto 1fr;gap:.6rem}
  .readrow .status{grid-column:1 / -1;justify-content:flex-start;padding-left:1.6rem}
  .rev-meta{gap:1.6rem}
}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  .readline{transition:none}
  *{scroll-behavior:auto!important}
}