/* ΠΡΩΤΟΜΑΣΤΟΡΑΣ ΚΑΤΑΣΚΕΥΑΣΤΙΚΗ Α.Ε. — static site | NK-Techsupport */
:root{
  --blue:#0186ba; --blue-d:#046a94; --blue-l:#04acec;
  --ink:#1f2a33; --muted:#5b6b78; --line:#e3e8ec; --bg:#f5f7f9; --white:#fff;
  --radius:10px; --max:1100px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--ink);background:var(--white);line-height:1.6;font-size:16px}
img{max-width:100%;height:auto}
a{color:var(--blue);text-decoration:none}
a:hover{color:var(--blue-d);text-decoration:underline}
.container{max-width:var(--max);margin:0 auto;padding:0 20px}
h1,h2,h3{line-height:1.25;margin:0 0 .6em;font-weight:600}
h1{font-size:2rem}
h2{font-size:1.6rem;color:var(--blue-d)}
h3{font-size:1.15rem}
p{margin:0 0 1em}
.muted{color:var(--muted)}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:var(--white);border-bottom:1px solid var(--line);box-shadow:0 1px 6px rgba(0,0,0,.04)}
.site-header .container{display:flex;align-items:center;justify-content:space-between;min-height:76px}
.brand img{height:58px;width:auto;display:block}
.nav{display:flex;gap:6px;align-items:center;list-style:none;margin:0;padding:0}
.nav a{display:block;padding:10px 14px;border-radius:6px;font-weight:600;font-size:.92rem;letter-spacing:.02em;text-transform:uppercase;color:var(--ink)}
.nav a:hover,.nav a.active{background:var(--blue);color:#fff;text-decoration:none}
.nav-toggle{display:none;background:none;border:1px solid var(--line);border-radius:6px;padding:8px 10px;cursor:pointer;color:var(--ink)}
.nav-toggle span{display:block;width:22px;height:2px;background:var(--ink);margin:4px 0}

/* hero */
.hero{background:linear-gradient(160deg,var(--blue-l) 0%,var(--blue) 55%,var(--blue-d) 100%);color:#fff;padding:70px 0 60px}
.hero h1{color:#fff;font-size:2.2rem;max-width:760px}
.hero p{font-size:1.15rem;max-width:720px;color:rgba(255,255,255,.92)}
.hero .btn{margin-top:14px}
.btn{display:inline-block;background:#fff;color:var(--blue-d);font-weight:600;padding:12px 22px;border-radius:6px;border:0;cursor:pointer}
.btn:hover{background:#eef6fb;text-decoration:none}
.btn.primary{background:var(--blue);color:#fff}
.btn.primary:hover{background:var(--blue-d)}

/* sections */
section{padding:60px 0}
section.alt{background:var(--bg)}
.section-title{margin-bottom:28px}
.section-title h2{margin-bottom:6px}
.section-title p{color:var(--muted);margin:0}
.grid{display:grid;gap:22px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px}
.card h3{color:var(--blue-d)}

/* balance sheets list */
.doc-list{list-style:none;margin:0;padding:0;display:grid;gap:12px;grid-template-columns:repeat(auto-fill,minmax(220px,1fr))}
.doc-list a{display:flex;align-items:center;gap:12px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:16px 18px;font-weight:600;color:var(--ink);transition:.15s}
.doc-list a:hover{border-color:var(--blue);box-shadow:0 4px 14px rgba(1,134,186,.12);text-decoration:none;color:var(--blue-d)}
.doc-list svg{flex:none;width:28px;height:28px;fill:none;stroke:var(--blue);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.doc-list small{display:block;font-weight:400;color:var(--muted);font-size:.8rem}

/* contact */
.contact-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:28px}
.info-table{width:100%;border-collapse:collapse}
.info-table th,.info-table td{text-align:left;padding:9px 0;border-bottom:1px solid var(--line);vertical-align:top}
.info-table th{width:150px;color:var(--muted);font-weight:600;font-size:.9rem}

/* footer */
.site-footer{background:#1c2730;color:#c6d0d8;padding:36px 0 22px;font-size:.92rem}
.site-footer a{color:#fff}
.footer-row{display:flex;flex-wrap:wrap;gap:16px;justify-content:space-between;align-items:center}
.footer-links{display:flex;flex-wrap:wrap;gap:14px;list-style:none;margin:0;padding:0}
.credit{margin-top:18px;padding-top:14px;border-top:1px solid #2d3a45;font-size:.82rem;color:#93a2ae;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between}

/* legal pages */
.legal{max-width:820px}
.legal h2{font-size:1.2rem;margin-top:1.8em}
.legal ul{padding-left:1.2em}

/* cookie banner */
.cookie-banner{position:fixed;left:16px;right:16px;bottom:16px;z-index:100;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 10px 30px rgba(0,0,0,.18);padding:18px 20px;display:none;max-width:560px;margin:0 auto}
.cookie-banner.show{display:block}
.cookie-banner p{margin:0 0 12px;font-size:.92rem}
.cookie-actions{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.cookie-actions .btn{padding:9px 16px;font-size:.9rem}
.btn.ghost{background:#fff;border:1px solid var(--line);color:var(--ink)}
.lang-toggle{margin-left:auto;background:none;border:0;color:var(--muted);cursor:pointer;font-size:.85rem;text-decoration:underline}
[data-lang]{display:none}
.cookie-banner[data-current="el"] [data-lang="el"],.cookie-banner[data-current="en"] [data-lang="en"]{display:inline}

/* responsive */
@media (max-width:860px){
  .grid-2,.grid-3,.contact-grid{grid-template-columns:1fr}
  .nav{display:none;position:absolute;left:0;right:0;top:100%;background:#fff;flex-direction:column;padding:10px 16px 16px;border-bottom:1px solid var(--line);gap:2px}
  .nav.open{display:flex}
  .nav-toggle{display:block}
  .hero{padding:50px 0 44px}
  .hero h1{font-size:1.7rem}
  section{padding:44px 0}
}