/* ============================================================
   North Aero Aviation Services - shared design system
   Palette tuned to the logo: charcoal + white + gold accent
   ============================================================ */
:root{
  --char:#2f3338;       /* logo charcoal */
  --char2:#3d434c;      /* lighter charcoal */
  --ink:#1f2225;        /* body text */
  --paper:#f7f8f9;      /* page background */
  --card:#ffffff;
  --line:#e2e5e9;       /* hairlines */
  --grey:#6b7280;       /* muted text */
  --gold:#b8860b;       /* accent (Baron striping) */
  --gold-2:#caa23f;
  --ph:#b00000;         /* unfilled placeholder marker */
  --maxw:1120px;
  --r:12px;
  --shadow:0 2px 10px rgba(31,34,37,.06);
  --shadow-lg:0 8px 30px rgba(31,34,37,.12);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--ink);background:var(--paper);line-height:1.6;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.ph{color:var(--ph);font-weight:700}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.muted{color:var(--grey)}
.center{text-align:center}

/* ---------- buttons ---------- */
.btn{display:inline-block;font-weight:700;padding:12px 26px;border-radius:8px;border:2px solid transparent;cursor:pointer;transition:.15s;font-size:15px}
.btn-gold{background:var(--gold);color:#1a1a1a}
.btn-gold:hover{background:var(--gold-2)}
.btn-dark{background:var(--char);color:#fff}
.btn-dark:hover{background:var(--char2)}
.btn-ghost{border-color:rgba(255,255,255,.55);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.12)}
.btn-outline{border-color:var(--char);color:var(--char)}
.btn-outline:hover{background:var(--char);color:#fff}

/* ---------- top nav ---------- */
.nav{background:var(--char);color:#fff;position:sticky;top:0;z-index:50;box-shadow:var(--shadow)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:68px}
.brand{display:flex;align-items:center;gap:12px;font-weight:800;letter-spacing:1px}
.brand img{height:44px;width:44px;border-radius:50%;object-fit:cover;background:#23262a}
.brand .bt{font-size:18px;line-height:1}
.brand .bs{font-size:10px;letter-spacing:2.5px;color:var(--gold-2);font-weight:600}
.nav-links{display:flex;align-items:center;gap:22px}
.nav-links a{font-size:14.5px;color:#d7dade;font-weight:500;padding:6px 0;border-bottom:2px solid transparent}
.nav-links a:hover{color:#fff}
.nav-links a.active{color:#fff;border-bottom-color:var(--gold)}
.nav-cta{background:var(--gold);color:#1a1a1a !important;padding:9px 16px !important;border-radius:7px;border:0 !important;font-weight:700}
.nav-cta:hover{background:var(--gold-2)}
.nav-toggle{display:none;background:none;border:0;color:#fff;font-size:24px;cursor:pointer}
@media(max-width:840px){
  .nav-links{position:absolute;top:68px;left:0;right:0;background:var(--char);flex-direction:column;align-items:flex-start;gap:0;padding:8px 24px 16px;display:none}
  .nav-links.open{display:flex}
  .nav-links a{width:100%;padding:12px 0;border-bottom:1px solid rgba(255,255,255,.08)}
  .nav-toggle{display:block}
}

/* ---------- hero ---------- */
.hero{position:relative;background:#11151a;color:#fff}
.hero-img{height:520px;background-position:center;background-size:cover;position:relative}
.hero-img::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(17,21,26,.25),rgba(17,21,26,.82))}
.hero-copy{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:flex-end;z-index:2}
.hero-copy .wrap{padding-bottom:44px}
.hero h1{font-size:42px;line-height:1.1;font-weight:800;max-width:760px}
.hero p.lede{font-size:18px;color:#dfe3e7;margin-top:14px;max-width:620px}
.hero .hero-actions{margin-top:24px;display:flex;gap:12px;flex-wrap:wrap}
.hero .border-top{height:4px;background:var(--gold)}
@media(max-width:680px){.hero-img{height:430px}.hero h1{font-size:30px}}

/* ---------- sections ---------- */
.section{padding:64px 0}
.section.tight{padding:44px 0}
.section.alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section.dark{background:var(--char);color:#fff}
.eyebrow{text-transform:uppercase;letter-spacing:2.5px;font-size:12px;font-weight:700;color:var(--gold)}
.section h2{font-size:28px;font-weight:800;margin:8px 0 6px}
.section .sub{color:var(--grey);max-width:680px}
.section.dark .sub{color:#c3c8ce}

/* ---------- value props ---------- */
.props{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:32px}
.prop{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:24px;box-shadow:var(--shadow)}
.prop .ic{width:42px;height:42px;border-radius:9px;background:#f1ece0;color:var(--gold);display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:800}
.prop h3{margin:14px 0 6px;font-size:17px}
.prop p{color:var(--grey);font-size:14.5px}
@media(max-width:780px){.props{grid-template-columns:1fr}}

/* ---------- listings grid ---------- */
.grid-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:32px}
@media(max-width:920px){.grid-cards{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.grid-cards{grid-template-columns:1fr}}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow);transition:.18s;display:flex;flex-direction:column}
.card:hover{box-shadow:var(--shadow-lg);transform:translateY(-3px)}
.card .ph-img{height:200px;background:#e9edf1 center/cover no-repeat;position:relative}
.card .tag{position:absolute;top:12px;left:12px;background:var(--gold);color:#1a1a1a;font-size:11px;font-weight:800;letter-spacing:.6px;text-transform:uppercase;padding:4px 10px;border-radius:5px}
.card .tag.sold{background:#b00000;color:#fff}
.card .body{padding:18px;display:flex;flex-direction:column;flex:1}
.card h3{font-size:18px;margin-bottom:2px}
.card .reg{font-size:13px;color:var(--grey);letter-spacing:1px}
.card .price{font-size:22px;font-weight:800;color:var(--char);margin:10px 0 8px}
.card .mini{display:flex;flex-wrap:wrap;gap:6px 16px;font-size:13px;color:var(--grey);margin-bottom:16px}
.card .mini b{color:var(--ink);font-weight:700}
.card .body .btn{margin-top:auto}

/* ---------- detail page ---------- */
.detail-hero{height:460px;background:#11151a center/cover no-repeat;border-bottom:4px solid var(--gold)}
.detail-bar{background:var(--char);color:#fff}
.detail-bar .inner{display:flex;justify-content:space-between;align-items:flex-end;flex-wrap:wrap;gap:14px;padding:22px 0}
.detail-bar h1{font-size:30px;font-weight:800}
.detail-bar .sub{color:#c3c8ce;font-size:14.5px;margin-top:4px}
.detail-bar .price .lbl{font-size:11px;letter-spacing:1.5px;text-transform:uppercase;color:#b9bec5;text-align:right}
.detail-bar .price .amt{font-size:30px;font-weight:800;text-align:right}
.kpis{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:26px 0}
@media(max-width:720px){.kpis{grid-template-columns:repeat(2,1fr)}}
.kpi{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:16px;box-shadow:var(--shadow)}
.kpi .v{font-size:18px;font-weight:800;color:var(--char)}
.kpi .k{font-size:11.5px;text-transform:uppercase;letter-spacing:.6px;color:var(--grey);margin-top:3px}
.panel{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:24px;margin-bottom:20px;box-shadow:var(--shadow)}
.panel h2{font-size:19px;color:var(--char);border-bottom:2px solid var(--line);padding-bottom:10px;margin-bottom:14px}
.specs{display:grid;grid-template-columns:1fr 1fr;gap:6px 30px}
@media(max-width:640px){.specs{grid-template-columns:1fr}}
.specs .row{display:flex;justify-content:space-between;gap:12px;border-bottom:1px dotted var(--line);padding:7px 0}
.specs .row span:first-child{color:var(--grey)}
.specs .row span:last-child{font-weight:600;text-align:right}
ul.feat{list-style:none;display:grid;grid-template-columns:1fr 1fr;gap:7px 26px}
@media(max-width:640px){ul.feat{grid-template-columns:1fr}}
ul.feat li{padding-left:22px;position:relative}
ul.feat li::before{content:"\2713";color:var(--gold);position:absolute;left:0;font-weight:800}
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
@media(max-width:640px){.gallery{grid-template-columns:1fr 1fr}}
.gallery figure{margin:0}
.gallery img{width:100%;height:180px;object-fit:cover;border-radius:9px;border:1px solid var(--line);cursor:zoom-in;transition:.15s}
.gallery img:hover{filter:brightness(1.05)}
.gallery figcaption{font-size:12px;color:var(--grey);margin-top:4px}

/* lightbox */
.lb{position:fixed;inset:0;background:rgba(15,18,22,.92);display:none;align-items:center;justify-content:center;z-index:100;padding:30px}
.lb.open{display:flex}
.lb img{max-width:94vw;max-height:90vh;border-radius:6px}
.lb .x{position:absolute;top:18px;right:26px;color:#fff;font-size:34px;cursor:pointer;line-height:1}

/* ---------- process steps ---------- */
.steps{counter-reset:step;margin-top:28px;display:grid;gap:14px}
.step{display:flex;gap:18px;background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:20px 22px;box-shadow:var(--shadow)}
.step::before{counter-increment:step;content:counter(step);flex:0 0 auto;width:40px;height:40px;border-radius:50%;background:var(--char);color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center}
.step h3{font-size:17px;margin-bottom:4px}
.step p{color:var(--grey);font-size:14.5px}

/* ---------- contact ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px;margin-top:30px}
@media(max-width:780px){.contact-grid{grid-template-columns:1fr}}
.field{margin-bottom:14px}
.field label{display:block;font-size:13px;font-weight:600;margin-bottom:5px}
.field input,.field textarea,.field select{width:100%;padding:11px 13px;border:1px solid var(--line);border-radius:8px;font:inherit;background:#fff}
.field textarea{min-height:120px;resize:vertical}
.info-row{display:flex;gap:12px;align-items:flex-start;margin-bottom:18px}
.info-row .ic{flex:0 0 auto;width:38px;height:38px;border-radius:9px;background:#f1ece0;color:var(--gold);display:flex;align-items:center;justify-content:center;font-weight:800}

/* ---------- CTA band ---------- */
.cta-band{background:var(--char);color:#fff;text-align:center;padding:56px 0}
.cta-band h2{font-size:26px;font-weight:800}
.cta-band p{color:#c3c8ce;margin:8px 0 22px;max-width:560px;margin-left:auto;margin-right:auto}

/* ---------- footer ---------- */
footer.site{background:#23262a;color:#aeb4bb;font-size:14px}
footer.site .cols{display:grid;grid-template-columns:2fr 1fr 1fr;gap:30px;padding:46px 0 28px}
@media(max-width:780px){footer.site .cols{grid-template-columns:1fr;gap:22px}}
footer.site h4{color:#fff;font-size:14px;letter-spacing:1px;text-transform:uppercase;margin-bottom:12px}
footer.site a{display:block;color:#aeb4bb;padding:3px 0}
footer.site a:hover{color:#fff}
footer.site .fbrand{display:flex;align-items:center;gap:12px;margin-bottom:12px}
footer.site .fbrand img{height:46px;width:46px;border-radius:50%;background:#2f3338}
footer.site .fbrand .bt{color:#fff;font-weight:800;letter-spacing:1px;font-size:16px}
footer.site .legal{border-top:1px solid #34383d;padding:16px 0;font-size:12.5px;color:#878d94}

/* ---------- breadcrumb ---------- */
.crumb{font-size:13px;color:var(--grey);padding:16px 0}
.crumb a:hover{color:var(--char)}

/* notice / disclaimer */
.notice{background:#fbf6ea;border:1px solid #ecdcb3;border-radius:10px;padding:14px 16px;font-size:13.5px;color:#6b5a2f}

/* ---------- documents / logbooks ---------- */
.docs{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
@media(max-width:640px){.docs{grid-template-columns:1fr}}
.doc{display:flex;align-items:center;gap:13px;border:1px solid var(--line);border-radius:10px;padding:13px 15px;background:#fff;transition:.15s}
.doc:hover{box-shadow:var(--shadow);border-color:#cfd4da}
.doc .fic{flex:0 0 auto;width:38px;height:46px;border-radius:5px;background:#f3e7e7;color:#b00000;display:flex;align-items:center;justify-content:center;font-size:10px;font-weight:800;letter-spacing:.5px}
.doc .dt{font-weight:700;font-size:14.5px}
.doc .dm{font-size:12px;color:var(--grey)}
.doc .open{margin-left:auto;font-size:13px;font-weight:700;color:var(--gold)}
.doc.empty{color:var(--grey);font-style:italic;justify-content:center;border-style:dashed}