/* ============================================================
   PetroLuc — design system
   Light industrial · palette taken from the Penrose-triangle logo
   Display: Barlow Condensed · Body: Archivo · Data: IBM Plex Mono
   ============================================================ */

@font-face { font-family:'Barlow Condensed'; src:url('../fonts/barlow-condensed-latin-500-normal.woff2') format('woff2'); font-weight:500; font-display:swap; }
@font-face { font-family:'Barlow Condensed'; src:url('../fonts/barlow-condensed-latin-600-normal.woff2') format('woff2'); font-weight:600; font-display:swap; }
@font-face { font-family:'Barlow Condensed'; src:url('../fonts/barlow-condensed-latin-700-normal.woff2') format('woff2'); font-weight:700; font-display:swap; }
@font-face { font-family:'Archivo'; src:url('../fonts/archivo-latin-400-normal.woff2') format('woff2'); font-weight:400; font-display:swap; }
@font-face { font-family:'Archivo'; src:url('../fonts/archivo-latin-500-normal.woff2') format('woff2'); font-weight:500; font-display:swap; }
@font-face { font-family:'Archivo'; src:url('../fonts/archivo-latin-600-normal.woff2') format('woff2'); font-weight:600; font-display:swap; }
@font-face { font-family:'Archivo'; src:url('../fonts/archivo-latin-700-normal.woff2') format('woff2'); font-weight:700; font-display:swap; }
@font-face { font-family:'IBM Plex Mono'; src:url('../fonts/ibm-plex-mono-latin-400-normal.woff2') format('woff2'); font-weight:400; font-display:swap; }
@font-face { font-family:'IBM Plex Mono'; src:url('../fonts/ibm-plex-mono-latin-500-normal.woff2') format('woff2'); font-weight:500; font-display:swap; }
@font-face { font-family:'IBM Plex Mono'; src:url('../fonts/ibm-plex-mono-latin-600-normal.woff2') format('woff2'); font-weight:600; font-display:swap; }

:root{
  --bg:#F4F8FB;
  --card:#FFFFFF;
  --ink:#0D2440;
  --muted:#5B7189;
  --navy:#123A6D;
  --steel:#2C6FB5;
  --cyan:#1FA9E0;
  --cyan-soft:#E3F3FB;
  --line:#D8E4EF;
  --amber:#E8890C;
  --grad:linear-gradient(135deg,#1FA9E0 0%,#123A6D 100%);
  --display:'Barlow Condensed','Arial Narrow',sans-serif;
  --body:'Archivo','Helvetica Neue',Arial,sans-serif;
  --mono:'IBM Plex Mono','Courier New',monospace;
  --shadow:0 1px 2px rgba(13,36,64,.06),0 8px 24px -12px rgba(13,36,64,.18);
  --shadow-lg:0 2px 4px rgba(13,36,64,.06),0 24px 48px -16px rgba(13,36,64,.25);
  --r:14px;
  /* isometric engineering grid — signature texture */
  --iso:
    repeating-linear-gradient(60deg,  rgba(44,111,181,.10) 0 1px, transparent 1px 34px),
    repeating-linear-gradient(-60deg, rgba(44,111,181,.10) 0 1px, transparent 1px 34px),
    repeating-linear-gradient(0deg,   rgba(44,111,181,.07) 0 1px, transparent 1px 29.4px);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0; background:var(--bg); color:var(--ink);
  font-family:var(--body); font-size:16.5px; line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%; display:block}
a{color:var(--steel)}
a:hover{color:var(--navy)}
:focus-visible{outline:3px solid var(--cyan); outline-offset:2px; border-radius:4px}
.skip{position:absolute; left:-999px; top:0; background:var(--navy); color:#fff; padding:.6rem 1rem; z-index:99}
.skip:focus{left:0}

.wrap{max-width:1180px; margin:0 auto; padding:0 24px}
.wrap-narrow{max-width:820px}

/* ---------------------------------------------------- header */
.site-head{
  position:sticky; top:0; z-index:50;
  background:rgba(255,255,255,.92); backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.head-in{display:flex; align-items:center; justify-content:space-between; height:72px}
.brand{display:flex; align-items:center; gap:12px; text-decoration:none}
.brand-name{
  font-family:var(--display); font-weight:600; font-size:1.7rem; letter-spacing:.02em;
  color:var(--navy); line-height:1;
}
.brand-name b{font-weight:700; color:var(--cyan)}
.site-nav{display:flex; align-items:center; gap:26px}
.site-nav a{
  text-decoration:none; color:var(--ink); font-weight:500; font-size:.95rem;
  padding:6px 0; border-bottom:2px solid transparent;
}
.site-nav a:hover{color:var(--steel); border-bottom-color:var(--cyan)}
.nav-cta{
  background:var(--navy); color:#fff !important; padding:9px 20px !important;
  border-radius:999px; border-bottom:none !important;
}
.nav-cta:hover{background:var(--steel)}
.nav-burger{display:none; background:none; border:0; padding:10px; cursor:pointer}
.nav-burger span{display:block; width:24px; height:2.5px; background:var(--navy); margin:5px 0; border-radius:2px}

/* ------------------------------------------------------ hero */
.hero{
  position:relative; overflow:hidden;
  background:linear-gradient(180deg,#FDFEFF 0%,#EAF3FA 100%);
  border-bottom:1px solid var(--line);
}
.hero::before{
  content:""; position:absolute; inset:0; background:var(--iso);
  mask-image:linear-gradient(105deg,transparent 30%,#000 75%);
  -webkit-mask-image:linear-gradient(105deg,transparent 30%,#000 75%);
  pointer-events:none;
}
.hero-grid{
  position:relative; display:grid; grid-template-columns:1.05fr .95fr;
  gap:56px; align-items:center; padding-top:72px; padding-bottom:84px;
}
.eyebrow{
  font-family:var(--mono); font-size:.78rem; font-weight:600; letter-spacing:.22em;
  text-transform:uppercase; color:var(--steel); display:flex; align-items:center; gap:10px; margin:0 0 18px;
}
.tick{width:26px; height:2px; background:var(--grad); display:inline-block}
.hero-title{
  font-family:var(--display); font-weight:700; text-transform:uppercase;
  font-size:clamp(2.5rem,5vw,4.1rem); line-height:.98; letter-spacing:.005em;
  margin:0 0 18px; color:var(--navy); text-wrap:balance;
}
.hero-sub{font-size:1.08rem; color:var(--muted); max-width:52ch; margin:0 0 26px}

.spec-strip{
  display:flex; flex-wrap:wrap; border:1px solid var(--line); border-radius:12px;
  background:#fff; box-shadow:var(--shadow); overflow:hidden; margin:0 0 28px; width:fit-content;
}
.spec{padding:12px 22px; border-right:1px solid var(--line)}
.spec:last-child{border-right:0}
.spec-k{display:block; font-family:var(--mono); font-size:.66rem; letter-spacing:.18em; text-transform:uppercase; color:var(--muted)}
.spec-v{font-family:var(--display); font-weight:600; font-size:1.35rem; color:var(--ink); line-height:1.15}
.spec-price .spec-v{color:var(--steel)}

.hero-cta{display:flex; gap:14px; flex-wrap:wrap}

.hero-media{position:relative}
.hero-frame{
  display:block; border-radius:var(--r); overflow:hidden; background:#fff;
  box-shadow:var(--shadow-lg); border:1px solid var(--line); aspect-ratio:4/3;
}
.hero-frame img{width:100%; height:100%; object-fit:cover; transition:transform .5s ease}
a.hero-frame:hover img{transform:scale(1.025)}
.hero-frame-empty{display:grid; place-items:center; background:linear-gradient(180deg,#fff,#EAF3FA)}
.hero-penrose{width:44%; opacity:.9}
.hero-plate{
  position:absolute; left:20px; bottom:-16px; background:var(--navy); color:#CFE7F7;
  font-family:var(--mono); font-size:.7rem; letter-spacing:.2em; padding:9px 16px;
  border-radius:8px; box-shadow:var(--shadow);
}

/* ------------------------------------------------- trust strip */
.trust{background:#fff; border-bottom:1px solid var(--line)}
.trust-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:0; padding:0}
.trust-item{padding:38px 30px; border-right:1px solid var(--line); position:relative}
.trust-item:first-child{padding-left:0}
.trust-item:last-child{border-right:0; padding-right:0}
.trust-n{font-family:var(--mono); font-size:.72rem; letter-spacing:.2em; color:var(--cyan); font-weight:600}
.trust-item h2{
  font-family:var(--display); font-weight:600; text-transform:uppercase;
  font-size:1.28rem; letter-spacing:.02em; margin:8px 0 8px; color:var(--navy);
}
.trust-item p{margin:0; color:var(--muted); font-size:.95rem}

/* --------------------------------------------------- sections */
.section{padding:72px 0}
.section-head{display:flex; align-items:end; justify-content:space-between; gap:20px; margin-bottom:34px; flex-wrap:wrap}
.section-title{
  font-family:var(--display); font-weight:700; text-transform:uppercase;
  font-size:clamp(1.8rem,3vw,2.5rem); line-height:1; margin:0; color:var(--navy);
}
.link-arrow{font-weight:600; text-decoration:none; font-size:.95rem}
.link-arrow::after{content:" →"}

/* ------------------------------------------------------ cards */
.cards{display:grid; grid-template-columns:repeat(auto-fill,minmax(266px,1fr)); gap:26px}
.card{
  background:var(--card); border:1px solid var(--line); border-radius:var(--r);
  overflow:hidden; text-decoration:none; color:var(--ink); box-shadow:var(--shadow);
  transition:transform .22s ease, box-shadow .22s ease; display:flex; flex-direction:column;
}
.card:hover{transform:translateY(-4px); box-shadow:var(--shadow-lg); color:var(--ink)}
.card-img{position:relative; aspect-ratio:4/3; background:#EEF4FA; overflow:hidden}
.card-img img{width:100%; height:100%; object-fit:cover}
.nophoto img{object-fit:cover}
.badge{
  position:absolute; top:12px; left:12px; font-family:var(--mono); font-weight:600;
  font-size:.68rem; letter-spacing:.16em; text-transform:uppercase;
  padding:5px 12px; border-radius:6px; color:#fff;
}
.badge-sold{background:var(--amber)}
.badge-new{background:var(--cyan)}
.badge-lg{font-size:.85rem; padding:8px 18px; top:18px; left:18px}
.is-sold .card-img img{filter:grayscale(.5)}
.card-body{padding:18px 20px 20px; display:flex; flex-direction:column; gap:6px; flex:1}
.card-title{
  font-family:var(--display); font-weight:600; font-size:1.28rem; line-height:1.15;
  margin:0; color:var(--navy); text-transform:uppercase; letter-spacing:.01em;
}
.card-specs{margin:0; font-family:var(--mono); font-size:.74rem; color:var(--muted); letter-spacing:.05em}
.card-specs span + span::before{content:" · "}
.card-price{margin-top:auto; padding-top:8px; font-weight:700; font-size:1.12rem; color:var(--steel)}

/* ------------------------------------------------------ pager */
.pager{display:flex; gap:8px; justify-content:center; margin-top:46px; font-family:var(--mono)}
.pager a,.pager-cur{
  min-width:42px; height:42px; display:grid; place-items:center; border-radius:10px;
  border:1px solid var(--line); text-decoration:none; font-weight:600; font-size:.9rem;
}
.pager a{background:#fff; color:var(--ink)}
.pager a:hover{border-color:var(--cyan); color:var(--steel)}
.pager-cur{background:var(--navy); color:#fff; border-color:var(--navy)}

/* --------------------------------------------------- page head */
.page-head{
  background:linear-gradient(180deg,#FDFEFF,#EAF3FA); border-bottom:1px solid var(--line);
  padding:56px 0 44px; position:relative; overflow:hidden;
}
.page-head::before{
  content:""; position:absolute; inset:0; background:var(--iso);
  mask-image:linear-gradient(100deg,transparent 45%,#000 90%);
  -webkit-mask-image:linear-gradient(100deg,transparent 45%,#000 90%);
}
.page-head .wrap{position:relative}
.page-head-slim{padding:22px 0}
.page-title{
  font-family:var(--display); font-weight:700; text-transform:uppercase;
  font-size:clamp(2.1rem,4vw,3.2rem); line-height:1; margin:0; color:var(--navy);
}
.page-sub{color:var(--muted); margin:12px 0 0; max-width:62ch}
.crumbs{margin:0; font-family:var(--mono); font-size:.78rem; letter-spacing:.08em}
.crumbs a{text-decoration:none}
.crumbs span{color:var(--muted); margin:0 6px}

/* ------------------------------------------------------ detail */
.detail-grid{display:grid; grid-template-columns:1.15fr .85fr; gap:48px; align-items:start}
.detail-title{
  font-family:var(--display); font-weight:700; text-transform:uppercase;
  font-size:clamp(1.7rem,2.8vw,2.4rem); line-height:1.02; margin:0 0 12px; color:var(--navy);
}
.detail-summary{color:var(--muted); margin:0 0 22px}
.detail-note{font-size:.85rem; color:var(--muted); margin:10px 0 0}

.plate{
  border:1px solid var(--line); border-radius:12px; background:#fff; box-shadow:var(--shadow);
  margin:0 0 22px; position:relative;
}
.plate::before,.plate::after{
  content:""; position:absolute; width:6px; height:6px; border-radius:50%;
  background:var(--line); top:10px;
}
.plate::before{left:10px}
.plate::after{right:10px}
.plate-row{
  display:flex; justify-content:space-between; align-items:baseline; gap:16px;
  padding:13px 20px; border-bottom:1px solid var(--line);
}
.plate-row:last-child{border-bottom:0}
.plate-row span{font-family:var(--mono); font-size:.7rem; letter-spacing:.16em; text-transform:uppercase; color:var(--muted)}
.plate-row b{font-weight:600; text-align:right}
.plate-row b a{text-decoration:none}
.plate-price b{font-family:var(--display); font-size:1.7rem; font-weight:700; color:var(--steel)}
.plate-price i{font-style:normal; font-family:var(--mono); font-size:.75rem; color:var(--muted)}

.btn{
  display:inline-block; text-decoration:none; font-weight:600; font-size:.98rem;
  padding:13px 28px; border-radius:999px; border:1.5px solid transparent;
  cursor:pointer; font-family:var(--body); transition:all .18s ease; text-align:center;
}
.btn-primary{background:var(--grad); color:#fff; box-shadow:0 6px 18px -6px rgba(31,169,224,.55)}
.btn-primary:hover{filter:brightness(1.08); color:#fff; transform:translateY(-1px)}
.btn-ghost{background:#fff; color:var(--navy); border-color:var(--line)}
.btn-ghost:hover{border-color:var(--steel); color:var(--steel)}
.btn-light{background:#fff; color:var(--navy)}
.btn-light:hover{background:var(--cyan-soft); color:var(--navy)}
.btn-block{display:block; width:100%}

/* ----------------------------------------------------- gallery */
.gallery-main{position:relative; border-radius:var(--r); overflow:hidden; border:1px solid var(--line); background:#EEF4FA; box-shadow:var(--shadow-lg)}
.gallery-main a{display:block; aspect-ratio:4/3}
.gallery-main img{width:100%; height:100%; object-fit:cover}
.gal-btn{
  position:absolute; top:50%; transform:translateY(-50%); z-index:2;
  width:44px; height:44px; border-radius:50%; border:1px solid var(--line);
  background:rgba(255,255,255,.94); color:var(--navy); font-size:1.15rem; cursor:pointer;
  display:grid; place-items:center; transition:all .15s ease;
}
.gal-btn:hover{background:var(--navy); color:#fff}
.gal-prev{left:14px} .gal-next{right:14px}
.gal-hint{
  position:absolute; right:14px; bottom:12px; background:rgba(13,36,64,.78); color:#fff;
  font-family:var(--mono); font-size:.66rem; letter-spacing:.1em; padding:6px 12px; border-radius:6px;
  pointer-events:none;
}
.gallery-thumbs{display:flex; gap:10px; margin-top:12px; flex-wrap:wrap}
.thumb{
  width:86px; height:64px; border-radius:8px; overflow:hidden; border:2px solid var(--line);
  padding:0; cursor:pointer; background:#EEF4FA; flex:none;
}
.thumb img{width:100%; height:100%; object-fit:cover}
.thumb.is-active{border-color:var(--cyan)}
.gallery-none{position:relative; border-radius:var(--r); overflow:hidden; border:1px solid var(--line); box-shadow:var(--shadow)}
.gallery-none img{width:100%}

.infobox{margin-top:44px; background:#fff; border:1px solid var(--line); border-radius:var(--r); padding:34px 38px; box-shadow:var(--shadow)}
.infobox-title{
  font-family:var(--display); font-weight:600; text-transform:uppercase; letter-spacing:.03em;
  font-size:1.4rem; margin:0 0 14px; color:var(--navy);
}

/* ------------------------------------------------------- prose */
.prose{color:var(--ink)}
.prose p{margin:0 0 1em}
.prose ul,.prose ol{padding-left:1.3em}
.prose li{margin:.3em 0}
.prose h2,.prose h3{font-family:var(--display); text-transform:uppercase; color:var(--navy); line-height:1.1; margin:1.6em 0 .5em}
.prose h2{font-size:1.7rem}
.prose h3{font-size:1.3rem}
.prose img{border-radius:10px}

/* ---------------------------------------------------- cta band */
.cta-band{background:var(--navy); position:relative; overflow:hidden}
.cta-band::before{
  content:""; position:absolute; inset:0;
  background:
    repeating-linear-gradient(60deg, rgba(31,169,224,.14) 0 1px, transparent 1px 34px),
    repeating-linear-gradient(-60deg, rgba(31,169,224,.14) 0 1px, transparent 1px 34px);
  mask-image:linear-gradient(100deg,#000 20%,transparent 70%);
  -webkit-mask-image:linear-gradient(100deg,#000 20%,transparent 70%);
}
.cta-in{position:relative; display:flex; align-items:center; justify-content:space-between; gap:30px; padding-top:56px; padding-bottom:56px; flex-wrap:wrap}
.cta-band h2{
  font-family:var(--display); font-weight:700; text-transform:uppercase;
  color:#fff; font-size:clamp(1.6rem,3vw,2.3rem); margin:0 0 8px; line-height:1.05;
}
.cta-band p{color:#B9D3EA; margin:0; max-width:56ch}

/* ------------------------------------------------------ contact */
.contact-grid{display:grid; grid-template-columns:1.2fr .8fr; gap:48px; align-items:start}
.field{margin-bottom:18px}
.field-2col{display:grid; grid-template-columns:1fr 1fr; gap:18px}
label{display:block; font-weight:600; font-size:.88rem; margin-bottom:6px}
.opt{color:var(--muted); font-weight:400}
input[type=text],input[type=email],input[type=tel],input[type=password],input[type=number],select,textarea{
  width:100%; padding:12px 15px; border:1.5px solid var(--line); border-radius:10px;
  font:inherit; background:#fff; color:var(--ink);
}
input:focus,select:focus,textarea:focus{border-color:var(--cyan); outline:none; box-shadow:0 0 0 3px rgba(31,169,224,.18)}
input[readonly]{background:var(--cyan-soft); font-family:var(--mono); font-size:.9rem}
.hp{position:absolute; left:-5000px}
.notice{padding:13px 18px; border-radius:10px; margin-bottom:16px; font-size:.94rem}
.notice-ok{background:#E4F6EC; color:#0E6A3A; border:1px solid #BCE5CD}
.notice-err{background:#FCEDEA; color:#9B2C1B; border:1px solid #F3CDC5}
.contact-note{color:var(--muted); font-size:.92rem}
.empty{
  text-align:center; padding:30px 20px; color:var(--muted);
}
.empty img{max-width:340px; margin:0 auto 18px; border-radius:12px; border:1px solid var(--line)}

/* ------------------------------------------------------- footer */
.site-foot{background:#0C1E38; color:#B9CCE0; margin-top:0}
.foot-grid{display:grid; grid-template-columns:1.4fr 1fr 1fr; gap:44px; padding:58px 24px 40px}
.foot-name{font-family:var(--display); font-weight:600; font-size:1.55rem; color:#fff; margin:14px 0 6px}
.foot-name b{color:var(--cyan); font-weight:700}
.foot-tag{margin:0; font-size:.92rem; color:#8AA6C2; max-width:34ch}
.foot-h{font-family:var(--mono); font-size:.68rem; letter-spacing:.22em; text-transform:uppercase; color:#6E8CAB; margin:4px 0 14px}
.site-foot a{display:block; color:#D4E3F1; text-decoration:none; margin-bottom:9px; font-size:.95rem}
.site-foot a:hover{color:var(--cyan)}
.foot-addr{font-size:.92rem; margin:4px 0 0; color:#8AA6C2}
.foot-base{
  display:flex; justify-content:space-between; gap:16px; flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.1); padding-top:22px; padding-bottom:26px;
  font-size:.82rem; color:#6E8CAB;
}
.foot-mono{font-family:var(--mono); letter-spacing:.18em; font-size:.68rem}

/* --------------------------------------------------- responsive */
@media (max-width: 940px){
  .hero-grid{grid-template-columns:1fr; gap:38px; padding-top:48px; padding-bottom:64px}
  .detail-grid,.contact-grid{grid-template-columns:1fr; gap:36px}
  .trust-grid{grid-template-columns:1fr}
  .trust-item{border-right:0; border-bottom:1px solid var(--line); padding:26px 0}
  .trust-item:last-child{border-bottom:0}
  .foot-grid{grid-template-columns:1fr; gap:30px}
}
@media (max-width: 760px){
  .site-nav{
    display:none; position:absolute; top:72px; left:0; right:0; flex-direction:column;
    background:#fff; border-bottom:1px solid var(--line); padding:18px 24px 24px; gap:16px;
    align-items:flex-start; box-shadow:var(--shadow-lg);
  }
  body.nav-open .site-nav{display:flex}
  .nav-burger{display:block}
  .spec-strip{width:100%}
  .spec{flex:1 1 40%; border-bottom:1px solid var(--line)}
  .field-2col{grid-template-columns:1fr}
}

@media (prefers-reduced-motion: reduce){
  *{animation:none !important; transition:none !important; scroll-behavior:auto !important}
}