:root{
  --bg:#0f1419;
  --panel:#161d27;
  --panel-2:#1b2430;
  --text:#f7f8fa;
  --muted:#a9b2bd;
  --line:rgba(255,255,255,.09);
  --accent:#f0c400;
  --accent-2:#e8853a;
  --max:1180px;
  --radius:22px;
  --shadow:0 20px 50px rgba(0,0,0,.24);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:var(--bg);color:var(--text);line-height:1.6}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button,input,textarea{font:inherit}
.container{width:min(var(--max),calc(100% - 40px));margin-inline:auto}
.eyebrow{display:inline-flex;align-items:center;gap:9px;color:var(--accent);font-size:.78rem;letter-spacing:.14em;text-transform:uppercase;font-weight:800}
.eyebrow::before{content:"";width:24px;height:2px;background:var(--accent);border-radius:2px}
.section{padding:88px 0}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:34px}
.section-head h1,.section-head h2{margin:.45rem 0 0;font-size:clamp(2rem,5vw,3.7rem);line-height:1.02;letter-spacing:-.04em}
.section-head p{max-width:640px;color:var(--muted);margin:0}
.site-header{position:sticky;top:0;z-index:50;background:rgba(15,20,25,.82);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}
.nav{height:82px;display:flex;align-items:center;justify-content:space-between;gap:22px}
.brand{display:flex;align-items:center;gap:12px;min-width:0}
.brand img{width:52px;height:52px;border-radius:50%;object-fit:cover;background:#fff}
.brand-copy{display:grid;line-height:1.1}
.brand strong{font-size:1rem;white-space:nowrap}
.brand span{font-size:.75rem;color:var(--muted);margin-top:4px;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:24px;color:#dde2e7;font-weight:650;font-size:.93rem}
.nav-links a{position:relative;padding:10px 0}
.nav-links a::after{content:"";position:absolute;left:0;bottom:3px;width:100%;height:2px;background:var(--accent);transform:scaleX(0);transform-origin:right;transition:.25s}
.nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1);transform-origin:left}
.nav-cta{padding:11px 16px!important;border-radius:12px;background:var(--accent);color:#171717!important}
.nav-cta::after{display:none!important}
/* Mobile navigation trigger — rebuilt from scratch */
.menu-btn{
  display:none;
  width:48px;
  height:48px;
  padding:0;
  border:0;
  border-radius:0;
  background:transparent;
  color:var(--text);
  cursor:pointer;
  -webkit-tap-highlight-color:transparent;
  touch-action:manipulation;
  position:relative;
  z-index:80;
}
.menu-icon{
  position:absolute;
  inset:0;
  display:block;
}
.menu-icon span{
  position:absolute;
  right:8px;
  height:2px;
  background:currentColor;
  border-radius:999px;
  transform-origin:center;
  transition:top .28s cubic-bezier(.2,.8,.2,1),right .28s cubic-bezier(.2,.8,.2,1),width .28s cubic-bezier(.2,.8,.2,1),transform .28s cubic-bezier(.2,.8,.2,1),background-color .2s ease;
}
.menu-icon span:first-child{top:17px;width:26px}
.menu-icon span:last-child{top:29px;width:18px}
.menu-btn:hover .menu-icon span:last-child{width:26px}
.menu-btn.open{color:var(--accent)}
.menu-btn.open .menu-icon span{right:9px;top:23px;width:28px}
.menu-btn.open .menu-icon span:first-child{transform:rotate(45deg)}
.menu-btn.open .menu-icon span:last-child{transform:rotate(-45deg)}
body.menu-open{overflow:hidden}
.hero{position:relative;min-height:calc(100svh - 82px);display:grid;align-items:end;overflow:hidden;border-bottom:1px solid var(--line)}
.hero-media{position:absolute;inset:0}
.hero-media img{width:100%;height:100%;object-fit:cover;object-position:center 38%;filter:saturate(.9) contrast(1.06)}
.hero-media::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(8,11,15,.94) 0%,rgba(8,11,15,.72) 42%,rgba(8,11,15,.18) 72%),linear-gradient(0deg,var(--bg) 0%,transparent 35%)}
.hero-inner{position:relative;z-index:2;padding:78px 0 84px;max-width:790px}
.hero-kicker{display:flex;align-items:center;gap:10px;color:var(--accent);font-weight:800;letter-spacing:.12em;text-transform:uppercase;font-size:.8rem}
.hero h1{margin:16px 0 20px;font-size:clamp(3.2rem,8vw,7rem);line-height:.9;letter-spacing:-.065em;max-width:850px}
.hero h1 span{color:var(--accent)}
.hero p{font-size:clamp(1rem,2vw,1.2rem);color:#d2d8df;max-width:680px;margin:0 0 30px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:14px 19px;border-radius:13px;border:1px solid var(--line);font-weight:800;transition:.2s;cursor:pointer}
.btn-primary{background:var(--accent);color:#171717;border-color:transparent}
.btn-secondary{background:rgba(22,29,39,.75);backdrop-filter:blur(10px)}
.btn:hover{transform:translateY(-2px)}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border-block:1px solid var(--line)}
.stat{background:var(--bg);padding:32px 18px;text-align:center}
.stat strong{display:block;color:var(--accent);font-size:1.8rem;letter-spacing:-.04em}
.stat span{display:block;color:var(--muted);font-size:.9rem;margin-top:3px}
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:42px;align-items:center}
.about-photo{position:relative}
.about-photo img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius);box-shadow:var(--shadow)}
.about-photo .logo-card{position:absolute;right:-18px;bottom:-25px;width:128px;padding:12px;background:white;border-radius:24px;box-shadow:var(--shadow)}
.copy h2{font-size:clamp(2.2rem,5vw,4rem);line-height:1.02;letter-spacing:-.045em;margin:12px 0 18px}
.copy p{color:var(--muted);font-size:1.05rem}
.pill-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:24px}
.pill{border:1px solid var(--line);background:var(--panel);padding:9px 12px;border-radius:999px;color:#d8dee5;font-size:.86rem;font-weight:700}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:0 12px 30px rgba(0,0,0,.13);transition:.25s}
.card:hover{transform:translateY(-5px);border-color:rgba(240,196,0,.35)}
.card-media{aspect-ratio:16/11;overflow:hidden;background:#0b0f14}
.card-media img{width:100%;height:100%;object-fit:cover;transition:.35s}
.card:hover .card-media img{transform:scale(1.035)}
.card-body{padding:22px}
.card-meta{display:flex;align-items:center;justify-content:space-between;gap:10px;color:var(--muted);font-size:.77rem;font-weight:750;text-transform:uppercase;letter-spacing:.06em}
.card-meta b{color:var(--accent)}
.card h3{font-size:1.28rem;line-height:1.22;letter-spacing:-.02em;margin:12px 0 7px}
.card p{margin:0;color:var(--muted);font-size:.93rem}
.gallery{display:grid;grid-template-columns:repeat(12,1fr);grid-auto-rows:170px;gap:12px}
.gallery button{padding:0;border:0;border-radius:18px;overflow:hidden;background:var(--panel);cursor:zoom-in;position:relative}
.gallery button:nth-child(1){grid-column:span 7;grid-row:span 2}
.gallery button:nth-child(2){grid-column:span 5;grid-row:span 2}
.gallery button:nth-child(n+3){grid-column:span 4}
.gallery img{width:100%;height:100%;object-fit:cover;transition:.3s}
.gallery button:hover img{transform:scale(1.04)}
.gallery button::after{content:"↗";position:absolute;right:12px;top:12px;width:36px;height:36px;border-radius:50%;display:grid;place-items:center;background:rgba(15,20,25,.78);border:1px solid rgba(255,255,255,.14);color:white;opacity:0;transform:translateY(4px);transition:.2s}
.gallery button:hover::after{opacity:1;transform:none}
.lightbox{position:fixed;inset:0;z-index:100;display:none;place-items:center;background:rgba(0,0,0,.9);padding:24px}
.lightbox.open{display:grid}
.lightbox img{max-width:min(1100px,92vw);max-height:84vh;border-radius:16px;box-shadow:var(--shadow)}
.lightbox-close{position:fixed;top:22px;right:24px;border:1px solid rgba(255,255,255,.2);background:rgba(25,25,25,.8);color:white;width:46px;height:46px;border-radius:50%;font-size:1.4rem;cursor:pointer}
.cta{padding:40px;border-radius:28px;background:linear-gradient(135deg,var(--panel),var(--panel-2));border:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;gap:28px}
.cta h2{font-size:clamp(1.8rem,4vw,3rem);margin:0 0 8px;letter-spacing:-.04em}
.cta p{color:var(--muted);margin:0}
.page-hero{padding:82px 0 52px;border-bottom:1px solid var(--line);background:radial-gradient(circle at 85% 10%,rgba(240,196,0,.08),transparent 32%)}
.page-hero h1{font-size:clamp(3rem,7vw,5.5rem);line-height:.94;letter-spacing:-.06em;margin:16px 0 18px}
.page-hero p{max-width:690px;color:var(--muted);font-size:1.08rem}
.timeline{display:grid;gap:12px}
.timeline-item{display:grid;grid-template-columns:110px 1fr;gap:24px;padding:23px;border:1px solid var(--line);border-radius:18px;background:var(--panel)}
.timeline-item strong{color:var(--accent);font-size:1.1rem}
.timeline-item h3{margin:0 0 6px}
.timeline-item p{margin:0;color:var(--muted)}
.contact-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:20px}
.contact-card,.contact-form{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:28px}
.contact-row{padding:18px 0;border-bottom:1px solid var(--line)}
.contact-row:last-child{border-bottom:0}
.contact-row small{display:block;color:var(--muted);margin-bottom:4px}
.contact-row a,.contact-row strong{font-size:1.06rem}
.field{display:grid;gap:8px;margin-bottom:14px}
.field label{font-size:.82rem;color:#cbd2d9;font-weight:800}
.field input,.field textarea{width:100%;border:1px solid var(--line);background:#0f151d;color:white;border-radius:13px;padding:14px 15px;outline:none}
.field input:focus,.field textarea:focus{border-color:rgba(240,196,0,.55);box-shadow:0 0 0 3px rgba(240,196,0,.08)}
.field textarea{min-height:150px;resize:vertical}
.form-note{color:var(--muted);font-size:.8rem;margin-top:12px}
.footer{border-top:1px solid var(--line);padding:42px 0 28px;background:#0b1015}
.footer-grid{display:grid;grid-template-columns:1.3fr .7fr .7fr;gap:36px}
.footer-brand p{max-width:500px;color:var(--muted)}
.footer h4{margin:0 0 12px}
.footer-links{display:grid;gap:8px;color:var(--muted)}
.footer-links a:hover{color:var(--accent)}
.footer-bottom{display:flex;justify-content:space-between;gap:16px;padding-top:28px;margin-top:28px;border-top:1px solid var(--line);color:#7f8994;font-size:.82rem}
.notice{padding:14px 16px;border:1px solid rgba(240,196,0,.22);background:rgba(240,196,0,.07);border-radius:14px;color:#e7e0b6;font-size:.9rem}
@media(max-width:900px){
  .site-header{z-index:70;transition:background .25s ease,border-color .25s ease}
  body.menu-open .site-header{background:#0c1117;border-bottom-color:rgba(255,255,255,.08)}
  .nav{position:relative;z-index:72}

  /* Full-screen architectural mobile menu */
  .nav-links{
    position:fixed;
    z-index:68;
    inset:82px 0 0;
    display:flex;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    margin:0;
    padding:38px max(24px,calc((100vw - var(--max))/2 + 20px)) 28px;
    background:
      linear-gradient(180deg,rgba(255,255,255,.018),transparent 24%),
      #0c1117;
    border:0;
    border-radius:0;
    box-shadow:none;
    overflow-y:auto;
    overscroll-behavior:contain;
    scrollbar-width:none;
    -ms-overflow-style:none;
    opacity:0;
    visibility:hidden;
    pointer-events:none;
    transform:translate3d(100%,0,0);
    transition:transform .42s cubic-bezier(.22,1,.36,1),opacity .24s ease,visibility .42s;
  }
  .nav-links::-webkit-scrollbar{display:none}
  .nav-links::before{
    content:"ΠΛΟΗΓΗΣΗ";
    display:block;
    margin:0 0 18px;
    color:var(--muted);
    font-size:.68rem;
    font-weight:850;
    letter-spacing:.2em;
  }
  .nav-links::after{
    content:"Μ.Α.Σ. ΑΕΤΟΣ  •  ΑΝΩ ΣΤΑΥΡΟΣ";
    display:block;
    margin-top:auto;
    padding-top:28px;
    color:#65707b;
    font-size:.66rem;
    font-weight:750;
    letter-spacing:.14em;
    border-top:1px solid var(--line);
  }
  .nav-links.open{
    opacity:1;
    visibility:visible;
    pointer-events:auto;
    transform:translate3d(0,0,0);
  }
  .nav-links a{
    position:relative;
    display:flex;
    align-items:center;
    min-height:74px;
    padding:16px 46px 16px 0;
    border-bottom:1px solid var(--line);
    color:#f1f4f7;
    font-size:clamp(1.45rem,5.5vw,2rem);
    font-weight:720;
    line-height:1.08;
    letter-spacing:-.035em;
    opacity:0;
    transform:translateX(22px);
    transition:color .2s ease,opacity .35s ease,transform .35s ease;
  }
  .nav-links.open a{opacity:1;transform:none}
  .nav-links.open a:nth-of-type(1){transition-delay:.06s}
  .nav-links.open a:nth-of-type(2){transition-delay:.10s}
  .nav-links.open a:nth-of-type(3){transition-delay:.14s}
  .nav-links.open a:nth-of-type(4){transition-delay:.18s}
  .nav-links.open a:nth-of-type(5){transition-delay:.22s}
  .nav-links a::before{
    content:"↗";
    position:absolute;
    right:0;
    top:50%;
    transform:translateY(-50%) rotate(45deg);
    color:#5f6974;
    font-size:1rem;
    font-weight:500;
    transition:transform .2s ease,color .2s ease;
  }
  .nav-links a::after{display:none}
  .nav-links a:hover,.nav-links a:focus-visible{color:var(--accent)}
  .nav-links a:hover::before,.nav-links a:focus-visible::before{color:var(--accent);transform:translateY(-50%) rotate(0deg)}
  .nav-links a.active{color:var(--accent)}
  .nav-links a.active::before{content:"—";transform:translateY(-50%);color:var(--accent);font-size:1.25rem}
  .nav-cta{
    padding:16px 46px 16px 0!important;
    border-radius:0;
    background:transparent;
    color:#f1f4f7!important;
    text-align:left;
  }
  .nav-cta:hover,.nav-cta:focus-visible,.nav-cta.active{color:var(--accent)!important}
  .menu-btn{display:block}

  .split,.contact-grid{grid-template-columns:1fr}.about-photo .logo-card{right:16px;bottom:-18px}
  .cards{grid-template-columns:repeat(2,1fr)}
  .gallery button:nth-child(1),.gallery button:nth-child(2),.gallery button:nth-child(n+3){grid-column:span 6}
  .footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}
}
@media(max-width:620px){
  .container{width:min(100% - 28px,var(--max))}.brand span{display:none}.nav{height:72px}.brand img{width:44px;height:44px}.nav-links{inset:72px 0 0;padding:30px 20px 24px}.nav-links a{min-height:68px;font-size:clamp(1.38rem,7vw,1.8rem)}
  .hero{min-height:760px}.hero-inner{padding:72px 0 55px}.hero-media::after{background:linear-gradient(0deg,var(--bg) 0%,rgba(8,11,15,.76) 48%,rgba(8,11,15,.3) 100%)}
  .hero h1{font-size:clamp(3.5rem,18vw,5.2rem)}.hero-actions .btn{width:100%}
  .section{padding:64px 0}.section-head{align-items:start;flex-direction:column}.stats{grid-template-columns:1fr}.stat{padding:22px}.cards{grid-template-columns:1fr}
  .gallery{grid-auto-rows:145px}.gallery button:nth-child(1),.gallery button:nth-child(2),.gallery button:nth-child(n+3){grid-column:span 12}.gallery button:nth-child(1),.gallery button:nth-child(2){grid-row:span 2}
  .cta{padding:28px;align-items:flex-start;flex-direction:column}.cta .btn{width:100%}.timeline-item{grid-template-columns:1fr;gap:7px}.footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:auto}.footer-bottom{flex-direction:column}
}


/* ===== Mobile navigation v4 — isolated from sticky header stacking ===== */
.mobile-nav-panel{display:none}
@media (max-width:900px){
  .site-header .nav-links{display:none!important}
  .site-header{z-index:1000}
  .nav{z-index:auto}
  .menu-btn{display:block;z-index:1002}

  .mobile-nav-panel{
    display:block;
    position:fixed;
    top:82px;
    right:0;
    bottom:0;
    left:0;
    z-index:999;
    background:#0c1117;
    opacity:0;
    visibility:hidden;
    pointer-events:none;
    transform:translateY(-10px);
    transition:opacity .22s ease,transform .32s cubic-bezier(.22,1,.36,1),visibility .32s;
    overflow-y:auto;
    -webkit-overflow-scrolling:touch;
    overscroll-behavior:contain;
    scrollbar-width:none;
  }
  .mobile-nav-panel::-webkit-scrollbar{display:none}
  body.menu-open .mobile-nav-panel{
    opacity:1;
    visibility:visible;
    pointer-events:auto;
    transform:none;
  }
  .mobile-nav-inner{
    min-height:100%;
    width:min(100%,760px);
    margin:0 auto;
    padding:34px 24px 24px;
    display:flex;
    flex-direction:column;
  }
  .mobile-nav-kicker{
    margin-bottom:18px;
    color:#7e8994;
    font-size:.68rem;
    font-weight:850;
    letter-spacing:.2em;
  }
  .mobile-nav-links{display:flex;flex-direction:column}
  .mobile-nav-links a{
    display:flex;
    align-items:center;
    justify-content:space-between;
    min-height:72px;
    gap:20px;
    border-bottom:1px solid rgba(255,255,255,.09);
    color:#f4f6f8;
    font-size:clamp(1.42rem,5.8vw,1.95rem);
    font-weight:750;
    line-height:1.05;
    letter-spacing:-.035em;
    opacity:0;
    transform:translateY(12px);
    transition:color .18s ease,opacity .28s ease,transform .28s ease;
  }
  body.menu-open .mobile-nav-links a{opacity:1;transform:none}
  body.menu-open .mobile-nav-links a:nth-child(1){transition-delay:.03s}
  body.menu-open .mobile-nav-links a:nth-child(2){transition-delay:.06s}
  body.menu-open .mobile-nav-links a:nth-child(3){transition-delay:.09s}
  body.menu-open .mobile-nav-links a:nth-child(4){transition-delay:.12s}
  body.menu-open .mobile-nav-links a:nth-child(5){transition-delay:.15s}
  .mobile-nav-links a span{
    flex:0 0 auto;
    color:#66717d;
    font-size:1rem;
    font-weight:500;
    transform:rotate(45deg);
    transition:transform .18s ease,color .18s ease;
  }
  .mobile-nav-links a:hover,.mobile-nav-links a:focus-visible,.mobile-nav-links a.active{color:var(--accent)}
  .mobile-nav-links a:hover span,.mobile-nav-links a:focus-visible span{color:var(--accent);transform:rotate(0deg)}
  .mobile-nav-links a.active span{color:var(--accent);transform:none}
  .mobile-nav-links a.active span::before{content:"—";font-size:1.25rem}
  .mobile-nav-links a.active span{font-size:0}
  .mobile-nav-footer{
    margin-top:auto;
    padding-top:26px;
    display:flex;
    flex-direction:column;
    gap:3px;
    color:#66717d;
    font-size:.72rem;
    letter-spacing:.08em;
    text-transform:uppercase;
  }
  .mobile-nav-footer strong{color:#9ca6af;font-size:.76rem;letter-spacing:.12em}
  body.menu-open{overflow:hidden}
}
@media (max-width:620px){
  .mobile-nav-panel{top:72px}
  .mobile-nav-inner{padding:26px 20px 20px}
  .mobile-nav-links a{min-height:66px}
}