/* ============================================================
   ALFA-EAI — industrial control-room aesthetic
   Display: Chakra Petch · Body: Barlow · Labels: IBM Plex Mono
   ============================================================ */

:root{
  --bg:        #0b1014;
  --bg-2:      #0e151b;
  --panel:     #111b22;
  --panel-2:   #14202a;
  --line:      rgba(96, 200, 210, .16);
  --line-soft: rgba(96, 200, 210, .08);
  --teal:      #41c9d4;
  --teal-soft: rgba(65, 201, 212, .12);
  --gold:      #c9a45c;
  --gold-soft: rgba(201, 164, 92, .12);
  --text:      #d9e4e9;
  --muted:     #8aa0aa;
  --paper:     #e9edee;
  --paper-2:   #f4f6f6;
  --ink:       #131c22;
  --ink-soft:  #51626c;
  --disp:      "Chakra Petch", sans-serif;
  --body:      "Barlow", sans-serif;
  --mono:      "IBM Plex Mono", monospace;
}

*{ margin:0; padding:0; box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  font-family:var(--body);
  font-size:17px; line-height:1.65;
  color:var(--text);
  background:var(--bg);
  overflow-x:clip;
}
img,video{ max-width:100%; height:auto; display:block; }
a{ color:var(--teal); text-decoration:none; }

.wrap{ width:min(1180px, 92vw); margin-inline:auto; }

.skip-link{
  position:absolute; left:-999px; top:0; z-index:100;
  background:var(--teal); color:var(--ink); padding:.5rem 1rem; font-family:var(--mono);
}
.skip-link:focus{ left:0; }

/* ---------- buttons ---------- */
.btn{
  display:inline-block; padding:.85rem 1.7rem;
  font-family:var(--disp); font-weight:600; font-size:.95rem;
  letter-spacing:.06em; text-transform:uppercase;
  border:1px solid transparent; cursor:pointer;
  transition:transform .2s ease, box-shadow .2s ease, background .2s ease, color .2s ease;
  clip-path:polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 14px 100%, 0 calc(100% - 14px));
}
.btn:hover{ transform:translateY(-2px); }
.btn-solid{ background:var(--teal); color:#06262a; }
.btn-solid:hover{ box-shadow:0 8px 30px rgba(65,201,212,.35); }
.btn-line{ border-color:var(--line); color:var(--text); background:transparent; }
.btn-line:hover{ border-color:var(--teal); color:var(--teal); }
.btn-gold{ background:var(--gold); color:#231a08; }
.btn-gold:hover{ box-shadow:0 8px 30px rgba(201,164,92,.35); }
.btn-ink{ background:var(--ink); color:var(--paper); margin-top:1.4rem; }
.btn-ink:hover{ box-shadow:0 8px 24px rgba(19,28,34,.35); }

/* ---------- header ---------- */
.site-head{
  position:sticky; top:0; z-index:50;
  background:rgba(11,16,20,.86);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line-soft);
}
.head-row{ display:flex; align-items:center; gap:2rem; height:72px; }
.brand{ display:flex; align-items:center; gap:.8rem; margin-right:auto; }
.brand-mark{
  width:44px; height:44px; aspect-ratio:1; object-fit:cover; border-radius:50%;
  box-shadow:0 0 0 1px var(--line), 0 0 18px rgba(65,201,212,.25);
}
.brand-text{ display:flex; flex-direction:column; line-height:1.15; }
.brand-name{
  font-family:var(--disp); font-weight:700; font-size:1.15rem;
  letter-spacing:.14em; color:var(--text);
}
.brand-sub{
  font-family:var(--mono); font-size:.58rem; letter-spacing:.32em;
  color:var(--muted); text-transform:uppercase;
}
.main-nav{ display:flex; gap:1.8rem; }
.main-nav a{
  font-family:var(--disp); font-weight:500; font-size:.92rem;
  letter-spacing:.07em; text-transform:uppercase; color:var(--muted);
  padding:.4rem 0; position:relative; transition:color .2s;
}
.main-nav a::after{
  content:""; position:absolute; left:0; bottom:0; height:2px; width:0;
  background:var(--teal); transition:width .25s ease;
}
.main-nav a:hover, .main-nav a.is-active{ color:var(--text); }
.main-nav a:hover::after, .main-nav a.is-active::after{ width:100%; }
.head-tools{ display:flex; align-items:center; gap:1.2rem; }
.lang{ font-family:var(--mono); font-size:.85rem; display:flex; gap:.45rem; }
.lang span{ color:var(--line); }
.lang a{ color:var(--muted); transition:color .2s; }
.lang a:hover{ color:var(--teal); }
.lang a[aria-current]{ color:var(--teal); border-bottom:1px solid var(--teal); }
.burger{ display:none; }

/* ---------- hero ---------- */
.hero{ position:relative; overflow:hidden; }
.hero-bg{
  position:absolute; inset:0; z-index:-1;
  background:
    radial-gradient(900px 480px at 75% -10%, rgba(65,201,212,.14), transparent 65%),
    radial-gradient(700px 500px at -10% 110%, rgba(201,164,92,.07), transparent 60%),
    linear-gradient(var(--line-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
  background-size:auto, auto, 64px 64px, 64px 64px;
  mask-image:linear-gradient(#000 60%, transparent);
}
.hero-grid{
  display:grid; grid-template-columns:1.15fr .85fr; align-items:center;
  gap:3rem; padding:6.5rem 0 5.5rem;
}
.status-chip{
  display:inline-flex; align-items:center; gap:.55rem;
  font-family:var(--mono); font-size:.72rem; letter-spacing:.22em;
  color:var(--teal); border:1px solid var(--line);
  padding:.35rem .9rem; margin-bottom:1.6rem;
  background:var(--teal-soft);
}
.status-dot{
  width:7px; height:7px; border-radius:50%; background:var(--teal);
  box-shadow:0 0 8px var(--teal);
  animation:pulse 2.2s ease-in-out infinite;
}
@keyframes pulse{ 0%,100%{opacity:1} 50%{opacity:.35} }
.kicker{
  font-family:var(--mono); font-size:.8rem; letter-spacing:.18em;
  text-transform:uppercase; color:var(--muted); margin-bottom:.9rem;
}
.hero h1{
  font-family:var(--disp); font-weight:700;
  font-size:clamp(2.1rem, 4.6vw, 3.5rem); line-height:1.08;
  text-transform:uppercase; letter-spacing:.01em;
}
.hero h1 em{
  font-style:normal; color:var(--teal);
  text-shadow:0 0 28px rgba(65,201,212,.4);
}
.lead{ max-width:56ch; color:var(--muted); font-size:1.08rem; margin:1.4rem 0 2.2rem; }
.hero-cta{ display:flex; gap:1rem; flex-wrap:wrap; }
.hero-stats{
  display:flex; gap:2.8rem; margin-top:3rem;
  border-top:1px solid var(--line-soft); padding-top:1.6rem;
}
.hero-stats dt{ font-family:var(--disp); font-weight:700; font-size:1.5rem; color:var(--text); }
.hero-stats dd{ font-family:var(--mono); font-size:.72rem; letter-spacing:.12em; text-transform:uppercase; color:var(--muted); }

.hero-visual{ position:relative; display:grid; place-items:center; min-height:380px; }
.hero-visual img{
  width:min(330px, 70%); aspect-ratio:1; height:auto; object-fit:cover; border-radius:50%;
  box-shadow:0 0 0 1px var(--line), 0 0 60px rgba(65,201,212,.28), 0 30px 70px rgba(0,0,0,.5);
}
.ring{ position:absolute; border-radius:50%; pointer-events:none; }
.ring-a{
  width:min(430px, 88%); aspect-ratio:1;
  border:1px dashed rgba(65,201,212,.4);
  animation:spin 36s linear infinite;
}
.ring-b{
  width:min(500px, 100%); aspect-ratio:1;
  border:1px solid var(--line-soft);
  border-top-color:var(--gold);
  animation:spin 60s linear infinite reverse;
}
@keyframes spin{ to{ transform:rotate(360deg);} }
.crosshair{ position:absolute; width:22px; height:22px; }
.crosshair::before, .crosshair::after{ content:""; position:absolute; background:var(--teal); opacity:.6; }
.crosshair::before{ left:50%; top:0; width:1px; height:100%; }
.crosshair::after{ top:50%; left:0; height:1px; width:100%; }
.ch-tl{ left:4%; top:8%; }
.ch-br{ right:4%; bottom:8%; }

/* ---------- ticker ---------- */
.ticker{
  border-block:1px solid var(--line-soft);
  background:var(--bg-2); overflow:hidden; padding:.8rem 0;
}
.ticker-track{
  display:flex; gap:2.4rem; width:max-content;
  animation:ticker 38s linear infinite;
}
.ticker-track span{
  font-family:var(--disp); font-weight:600; font-size:.85rem;
  letter-spacing:.18em; color:var(--muted); white-space:nowrap;
}
.ticker-track i{ color:var(--teal); font-style:normal; opacity:.7; }
@keyframes ticker{ to{ transform:translateX(-50%);} }

/* ---------- sections ---------- */
.section{ padding:6.2rem 0; }
.section-alt{ background:var(--bg-2); border-block:1px solid var(--line-soft); }
.sec-head{ margin-bottom:3rem; max-width:760px; }
.sec-no{
  font-family:var(--mono); font-size:.8rem; letter-spacing:.2em;
  text-transform:uppercase; color:var(--teal); margin-bottom:.8rem;
}
.sec-no.gold{ color:var(--gold); }
.sec-head h2{
  font-family:var(--disp); font-weight:700; text-transform:uppercase;
  font-size:clamp(1.6rem, 3.2vw, 2.4rem); line-height:1.15;
}
.sec-lead{ color:var(--muted); margin-top:1rem; max-width:62ch; }
.mini-label{
  font-family:var(--mono); font-size:.74rem; letter-spacing:.18em;
  text-transform:uppercase; color:var(--teal); margin:1.8rem 0 .9rem;
}
.mini-label.gold{ color:var(--gold); }

/* ---------- about ---------- */
.about-grid{ display:grid; grid-template-columns:1fr 1fr .65fr; gap:1.4rem; }
.panel{
  background:var(--panel); border:1px solid var(--line-soft);
  padding:2rem; position:relative;
}
.panel::before{
  content:""; position:absolute; left:0; top:0; width:34px; height:34px;
  border-left:2px solid var(--teal); border-top:2px solid var(--teal);
  opacity:.7;
}
.panel h3{
  font-family:var(--disp); font-weight:600; text-transform:uppercase;
  letter-spacing:.05em; font-size:1.05rem; margin-bottom:.9rem; color:var(--teal);
}
.panel p{ color:var(--muted); }
.facts{ display:flex; flex-direction:column; gap:1.4rem; justify-content:center; padding-left:1.4rem; border-left:1px solid var(--line-soft); }
.fact-l{
  display:block; font-family:var(--mono); font-size:.7rem;
  letter-spacing:.18em; text-transform:uppercase; color:var(--muted);
}
.fact-v{ font-family:var(--disp); font-weight:600; font-size:1.1rem; }

/* ---------- plc ---------- */
.plc-grid{ display:grid; grid-template-columns:1.05fr .95fr; gap:3.5rem; align-items:start; }
.plc-copy p{ color:var(--muted); margin-bottom:1.1rem; }
.chips{ list-style:none; display:flex; flex-wrap:wrap; gap:.55rem; }
.chips li{
  font-family:var(--mono); font-size:.78rem; letter-spacing:.08em;
  border:1px solid var(--line); color:var(--text);
  padding:.4rem .8rem; background:var(--teal-soft);
}
.chips .chip-gold{ border-color:rgba(201,164,92,.4); background:var(--gold-soft); color:var(--gold); }
.svc-list{ list-style:none; counter-reset:svc; }
.svc-list li{
  display:flex; align-items:baseline; gap:1.1rem;
  padding:1.05rem .4rem; border-bottom:1px solid var(--line-soft);
  font-family:var(--disp); font-weight:500; font-size:1.02rem;
  transition:background .2s, padding-left .25s;
}
.svc-list li:first-child{ border-top:1px solid var(--line-soft); }
.svc-list li:hover{ background:var(--teal-soft); padding-left:1rem; }
.svc-list span{
  font-family:var(--mono); font-size:.78rem; color:var(--teal); min-width:2ch;
}

/* ---------- vibn ---------- */
.vibn-grid{ display:grid; grid-template-columns:.8fr 1.2fr; gap:3.5rem; align-items:center; }
.vibn-copy p{ color:var(--muted); margin-bottom:1.1rem; }
.sim-frame{ position:relative; }
.sim-bar{
  display:flex; justify-content:space-between; align-items:center;
  background:var(--panel-2); border:1px solid var(--line);
  border-bottom:none; padding:.55rem 1rem;
}
.sim-title{
  font-family:var(--mono); font-size:.68rem; letter-spacing:.16em; color:var(--muted);
}
.sim-live{
  display:flex; align-items:center; gap:.5rem;
  font-family:var(--mono); font-size:.68rem; letter-spacing:.16em; color:var(--teal);
}
.rec-dot{
  width:8px; height:8px; border-radius:50%; background:#e25555;
  box-shadow:0 0 8px #e25555; animation:pulse 1.4s ease-in-out infinite;
}
.sim-viewport{ position:relative; border:1px solid var(--line); background:#000; }
.sim-viewport video{ width:100%; aspect-ratio:848/372; object-fit:cover; }
.sim-corner{ position:absolute; width:22px; height:22px; pointer-events:none; }
.c-tl{ left:-1px; top:-1px; border-left:2px solid var(--teal); border-top:2px solid var(--teal); }
.c-tr{ right:-1px; top:-1px; border-right:2px solid var(--teal); border-top:2px solid var(--teal); }
.c-bl{ left:-1px; bottom:-1px; border-left:2px solid var(--teal); border-bottom:2px solid var(--teal); }
.c-br{ right:-1px; bottom:-1px; border-right:2px solid var(--teal); border-bottom:2px solid var(--teal); }
.sim-note{
  font-family:var(--mono); font-size:.72rem; color:var(--muted);
  margin-top:.7rem; letter-spacing:.08em;
}

/* ---------- references (paper) ---------- */
.section-paper{ background:var(--paper); color:var(--ink); }
.section-paper .sec-head h2{ color:var(--ink); }
.section-paper .sec-no{ color:#0e7c86; }
.section-paper .sec-lead{ color:var(--ink-soft); }
.section-paper .mini-label{ color:#0e7c86; }
.ref-grid{ display:grid; grid-template-columns:.9fr 1.1fr; gap:3rem; align-items:start; }
.ref-head-row{
  display:flex; justify-content:space-between;
  font-family:var(--mono); font-size:.7rem; letter-spacing:.18em;
  text-transform:uppercase; color:var(--ink-soft);
  padding-bottom:.6rem; border-bottom:2px solid var(--ink);
}
.ref-row{
  display:flex; justify-content:space-between; align-items:baseline; gap:1.5rem;
  padding:1.05rem 0; border-bottom:1px solid rgba(19,28,34,.15);
}
.ref-row strong{ font-family:var(--disp); font-weight:600; font-size:1.05rem; text-transform:uppercase; letter-spacing:.03em; }
.ref-row span{ font-family:var(--mono); font-size:.78rem; color:var(--ink-soft); text-align:right; }
.ref-map{ background:var(--paper-2); border:1px solid rgba(19,28,34,.12); padding:1.4rem; }
.ref-map .mini-label{ margin-top:0; }
.map-box{ position:relative; }
.map-box img{ width:100%; }
.map-dot{ position:absolute; left:var(--x); top:var(--y); transform:translate(-50%,-50%); }
.map-dot i{
  display:block; width:11px; height:11px; border-radius:50%;
  background:#0e7c86; box-shadow:0 0 0 4px rgba(14,124,134,.25);
  animation:pulse 2.6s ease-in-out infinite;
}
.map-dot b{
  position:absolute; left:14px; top:-4px; white-space:nowrap;
  font-family:var(--mono); font-weight:500; font-size:.62rem; letter-spacing:.06em;
  color:var(--ink); background:rgba(244,246,246,.85); padding:.1rem .35rem;
}
.map-hq i{ background:var(--gold); box-shadow:0 0 0 4px rgba(201,164,92,.3); }
.lb-up b{ top:auto; bottom:10px; }
.lb-left b{ left:auto; right:14px; }
.lb-down b{ left:50%; top:12px; transform:translateX(-50%); }

/* ---------- rental ---------- */
.cars-grid{
  display:grid; grid-template-columns:repeat(4, 1fr); gap:1.3rem;
  grid-template-areas:"c1 c2 c3 c4" "p p p p";
}
.car-card{
  background:var(--panel); border:1px solid var(--line-soft);
  padding:1.6rem; transition:border-color .25s, transform .25s;
}
.car-card:hover{ border-color:rgba(201,164,92,.45); transform:translateY(-4px); }
.car-art{ color:var(--gold); margin-bottom:1rem; }
.car-card h3{
  font-family:var(--disp); font-weight:600; text-transform:uppercase;
  letter-spacing:.08em; font-size:1rem; margin-bottom:.3rem;
}
.car-card p{ font-size:.88rem; color:var(--muted); }
.price-panel{
  grid-area:p; margin-top:1rem;
  background:linear-gradient(135deg, var(--panel-2), var(--panel));
  border:1px solid rgba(201,164,92,.3); padding:2rem;
  display:grid; grid-template-columns:1fr auto; gap:.4rem 3rem; align-items:center;
}
.price-panel .mini-label{ grid-column:1 / -1; margin:0 0 .6rem; }
.price-table{ border-collapse:collapse; width:100%; }
.price-table td{
  padding:.65rem .2rem; border-bottom:1px solid var(--line-soft);
  font-family:var(--disp); font-weight:500;
}
.price-table td:last-child{ text-align:right; color:var(--gold); font-weight:600; }
.price-note{ font-family:var(--mono); font-size:.74rem; color:var(--muted); letter-spacing:.06em; }
.price-panel .btn{ justify-self:end; }

/* ---------- contact ---------- */
.contact-grid{ display:grid; grid-template-columns:.9fr 1.1fr; gap:3rem; align-items:start; }
.contact-card{
  background:var(--panel); border:1px solid var(--line-soft); padding:2.2rem; position:relative;
}
.contact-card::before{
  content:""; position:absolute; right:0; bottom:0; width:34px; height:34px;
  border-right:2px solid var(--teal); border-bottom:2px solid var(--teal); opacity:.7;
}
.contact-card h3{
  font-family:var(--disp); font-weight:700; text-transform:uppercase;
  letter-spacing:.06em; font-size:1.3rem; margin-bottom:1.4rem;
}
.spec div{
  display:grid; grid-template-columns:130px 1fr; gap:1rem;
  padding:.75rem 0; border-bottom:1px solid var(--line-soft);
}
.spec dt{
  font-family:var(--mono); font-size:.72rem; letter-spacing:.14em;
  text-transform:uppercase; color:var(--muted); padding-top:.2rem;
}
.spec dd a{ color:var(--teal); }
.contact-photo{ position:relative; }
.contact-photo img{ width:100%; border:1px solid var(--line-soft); }
.map-btn{ position:absolute; right:1rem; bottom:1rem; background:rgba(11,16,20,.85); backdrop-filter:blur(6px); }

/* ---------- footer ---------- */
.site-foot{ border-top:1px solid var(--line-soft); background:var(--bg-2); padding:2.4rem 0; }
.foot-row{ display:flex; justify-content:space-between; align-items:center; gap:2rem; flex-wrap:wrap; }
.foot-brand{ display:flex; flex-direction:column; gap:.2rem; }
.foot-tag{ font-family:var(--mono); font-size:.68rem; letter-spacing:.14em; color:var(--muted); text-transform:uppercase; }
.foot-note{ font-family:var(--mono); font-size:.72rem; color:var(--muted); }

/* ---------- reveal animation ---------- */
.reveal{ opacity:0; transform:translateY(26px); transition:opacity .7s ease var(--d, 0s), transform .7s ease var(--d, 0s); }
.reveal.in{ opacity:1; transform:none; }
@media (prefers-reduced-motion: reduce){
  .reveal{ opacity:1; transform:none; transition:none; }
  .ring-a,.ring-b,.ticker-track,.status-dot,.rec-dot,.map-dot i{ animation:none; }
  html{ scroll-behavior:auto; }
}

/* ---------- responsive ---------- */
@media (max-width: 1020px){
  .hero-grid{ grid-template-columns:1fr; padding-top:4.5rem; }
  .hero-visual{ order:-1; min-height:280px; }
  .hero-visual img{ width:230px; }
  .ring-a{ width:300px; } .ring-b{ width:350px; }
  .about-grid{ grid-template-columns:1fr 1fr; }
  .facts{ grid-column:1 / -1; flex-direction:row; gap:2.5rem; border-left:none; border-top:1px solid var(--line-soft); padding:1.4rem 0 0; }
  .plc-grid,.vibn-grid,.ref-grid,.contact-grid{ grid-template-columns:1fr; gap:2.4rem; }
  .cars-grid{ grid-template-columns:1fr 1fr; grid-template-areas:"c1 c2" "c3 c4" "p p"; }
}
@media (max-width: 720px){
  .main-nav{
    position:fixed; inset:72px 0 auto 0; z-index:49;
    flex-direction:column; gap:0; background:var(--bg-2);
    border-bottom:1px solid var(--line);
    max-height:0; overflow:hidden; transition:max-height .35s ease;
  }
  .main-nav.open{ max-height:340px; }
  .main-nav a{ padding:1rem 4vw; border-top:1px solid var(--line-soft); }
  .brand-name{ font-size:1rem; }
  .brand-sub{ font-size:.48rem; letter-spacing:.12em; }
  .head-row{ gap:1rem; }
  .burger{
    display:flex; flex-direction:column; gap:5px;
    background:none; border:none; cursor:pointer; padding:.4rem;
  }
  .burger span{ width:24px; height:2px; background:var(--text); transition:transform .3s, opacity .3s; }
  .burger[aria-expanded="true"] span:nth-child(1){ transform:translateY(7px) rotate(45deg); }
  .burger[aria-expanded="true"] span:nth-child(2){ opacity:0; }
  .burger[aria-expanded="true"] span:nth-child(3){ transform:translateY(-7px) rotate(-45deg); }
  .hero-stats{ gap:1.6rem; flex-wrap:wrap; }
  .about-grid{ grid-template-columns:1fr; }
  .facts{ flex-direction:column; gap:1.2rem; }
  .cars-grid{ grid-template-columns:1fr; grid-template-areas:"c1" "c2" "c3" "c4" "p"; }
  .price-panel{ grid-template-columns:1fr; }
  .price-panel .btn{ justify-self:start; }
  .spec div{ grid-template-columns:1fr; gap:.1rem; }
  .ref-row{ flex-direction:column; gap:.2rem; }
  .ref-row span{ text-align:left; }
  .map-dot b{ display:none; }
}