/* track1435 — κοινό στυλ (βάση: σχέδιο Α4). Χωρίς εξωτερικές γραμματοσειρές (GDPR, ταχύτητα). */
:root{
  --navy:#0F1B2D; --navy-2:#16243A; --grid:#1F3050;
  --ink:#0F1B2D; --muted:#3D4A5C; --line:#D9DEE5; --bg:#F6F7F9; --white:#FFFFFF;
  --accent:#C2410C; --accent-light:#F0854A; --accent-pale:#F7A576; --accent-text:#B03A0A;
  --on-navy:#C5CCD6;
  --sans:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --mono:ui-monospace,"Cascadia Mono","SF Mono",Consolas,"Liberation Mono",monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--sans);color:var(--ink);background:var(--bg);line-height:1.55}
a{color:var(--ink)}a:hover{color:var(--accent)}
:focus-visible{outline:3px solid var(--accent-light);outline-offset:2px}
.skip{position:absolute;left:-9999px;top:0;background:var(--white);color:var(--ink);padding:12px 16px;z-index:10}
.skip:focus{left:8px;top:8px}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px}
.eyebrow{margin:0 0 8px;font-family:var(--mono);font-size:13px;letter-spacing:.1em;text-transform:uppercase;color:var(--accent-text)}
.on-navy .eyebrow,.eyebrow.light{color:var(--accent-pale)}
h1,h2,h3{letter-spacing:-.02em}
h2{margin:0 0 24px;font-size:32px;font-weight:800}
h3{margin:0;font-size:20px}
.lead{font-size:18px;color:var(--muted);max-width:720px}

/* header */
.on-navy{background:var(--navy);color:var(--white)}
.site-header .wrap{padding-top:20px;padding-bottom:20px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-weight:700;font-size:20px;color:var(--white)}
.brand:hover{color:var(--white)}
.brand b{font-family:var(--mono);font-weight:500;color:var(--accent-light)}
.main-nav{display:flex;flex-wrap:wrap;align-items:center;gap:24px;font-size:15px;font-weight:500}
.main-nav a{text-decoration:none;padding:12px 0;color:var(--white)}
.main-nav a:hover{color:var(--accent-pale)}
.main-nav a[aria-current="page"]{border-bottom:2px solid var(--accent-light)}
.btn{display:inline-block;text-decoration:none;background:var(--accent);color:var(--white);padding:14px 24px;border-radius:6px;font-weight:700;font-size:16px;border:0;cursor:pointer;font-family:inherit}
.btn:hover{background:#9A3409;color:var(--white)}
.main-nav a.btn{padding:12px 20px;color:var(--white)}
.btn[disabled]{background:#6B7686;cursor:not-allowed}

/* hero */
.hero-text{flex:1 1 340px;min-width:0;display:flex;flex-direction:column;gap:20px}
.hero h1{margin:0;font-size:clamp(34px,5vw,56px);line-height:1.06;font-weight:800;letter-spacing:-.03em}
.hero .sub{margin:0;font-size:18px;color:var(--on-navy);max-width:520px}
.cta-row{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:4px}
.cta-row p{margin:0;font-size:15px}
.ticks{list-style:none;margin:8px 0 0;padding:0;display:flex;flex-direction:column;gap:8px;font-size:15px;color:var(--on-navy)}
.ticks li{display:flex;gap:10px;align-items:baseline}
.ticks li::before{content:"—";color:var(--accent-light);font-weight:700}
.hero-visual{flex:1 1 380px;min-width:0}
.panel{background:var(--navy-2);border:1px solid #55627A;border-radius:10px;padding:16px;background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);background-size:28px 28px}
.panel svg{display:block;width:100%;height:auto}

/* in-page nav */
.page-nav{background:var(--white);border-bottom:1px solid var(--line)}
.page-nav .wrap{display:flex;flex-wrap:wrap;gap:4px 28px;font-size:15px;font-weight:600}
.page-nav a{text-decoration:none;padding:16px 0;border-bottom:3px solid transparent}
.page-nav a:hover{border-bottom-color:var(--accent)}

/* sections */
section.block{padding:72px 0}
section.alt{background:var(--white);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:24px}
.steps li{display:flex;flex-direction:column;gap:8px;border-top:3px solid var(--navy);padding-top:16px}
.steps .n{margin:0;font-family:var(--mono);font-size:28px;font-weight:500;color:var(--accent)}
.steps p{margin:0;color:var(--muted);font-size:15px}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px}
.card{background:var(--bg);border:1px solid var(--line);border-radius:8px;overflow:hidden;display:flex;flex-direction:column}
.card svg{display:block;width:100%;height:auto;background:var(--navy)}
.card-body{padding:20px 24px 24px;display:flex;flex-direction:column;gap:8px;flex:1}
.card-body h3{font-size:19px}
.card-body p{margin:0;color:var(--muted);font-size:15px;flex:1}
.card-body a{font-size:15px;font-weight:600;padding:10px 0}
.band{display:block;width:100%;height:420px}

/* download */
.dl .wrap{padding-top:72px;padding-bottom:72px;display:flex;flex-wrap:wrap;gap:48px;align-items:center}
.dl-text{flex:1 1 320px;min-width:0;display:flex;flex-direction:column;gap:16px}
.dl h2{margin:0;font-size:34px;color:var(--white)}
.dl p{margin:0;color:var(--on-navy);font-size:17px}
.form{flex:1 1 320px;min-width:0;display:flex;flex-direction:column;gap:12px;background:var(--white);color:var(--ink);border-radius:10px;padding:28px}
.form label{font-size:14px;font-weight:600}
.form input{font:inherit;font-size:16px;padding:14px 16px;border-radius:6px;border:1px solid #556275;background:var(--white);color:var(--ink)}
.form input[disabled]{background:#EEF0F3;color:#556275}
.form .note{font-size:13px;color:var(--muted);margin:0}

/* faq, definition lists */
details{border-top:1px solid var(--line);padding:14px 0}
details:last-child{border-bottom:1px solid var(--line)}
summary{font-size:16px;font-weight:600;cursor:pointer;padding:4px 0}
details p{margin:8px 0 0;color:var(--muted);font-size:15px}
.cols{display:flex;flex-wrap:wrap;gap:48px}
.cols>div{flex:1 1 320px;min-width:0}

/* program page */
.page-title .wrap{padding-top:48px;padding-bottom:56px}
.page-title h1{margin:0 0 12px;font-size:clamp(32px,4.5vw,46px);font-weight:800;letter-spacing:-.03em;line-height:1.1}
.page-title p{margin:0;color:var(--on-navy);font-size:18px;max-width:720px}
.feature{display:flex;flex-wrap:wrap;gap:32px;padding:40px 0;border-top:1px solid var(--line)}
.feature:first-of-type{border-top:0}
.feature .f-head{flex:1 1 240px;min-width:0}
.feature .f-head .k{font-family:var(--mono);font-size:13px;letter-spacing:.1em;color:var(--accent-text);margin:0 0 6px}
.feature .f-body{flex:2 1 420px;min-width:0}
.feature ul{margin:0;padding-left:20px;display:flex;flex-direction:column;gap:8px;color:var(--muted);font-size:16px}
.feature p{margin:0 0 12px;color:var(--muted);font-size:16px}
.tag{display:inline-block;font-family:var(--mono);font-size:12px;letter-spacing:.06em;background:var(--accent);color:var(--white);padding:2px 8px;border-radius:4px;margin-left:8px;vertical-align:middle}
.levels{list-style:none;padding:0!important;display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px}
.levels li{background:var(--white);border:1px solid var(--line);border-radius:6px;padding:12px 14px;font-size:15px;color:var(--ink)}
.levels b{font-family:var(--mono);margin-right:6px}
dl.spec{margin:0;display:grid;grid-template-columns:minmax(140px,auto) 1fr;gap:0 24px;font-size:16px}
dl.spec dt{padding:12px 0;border-top:1px solid var(--line);font-weight:600}
dl.spec dd{margin:0;padding:12px 0;border-top:1px solid var(--line);color:var(--muted)}
dl.spec dt:last-of-type,dl.spec dd:last-of-type{border-bottom:1px solid var(--line)}

/* footer */
.site-footer{background:var(--navy);color:var(--on-navy)}
.site-footer .wrap{padding-top:32px;padding-bottom:32px;display:flex;flex-wrap:wrap;justify-content:space-between;gap:16px;font-size:14px}
.site-footer p{margin:0}
.site-footer a{color:var(--white)}

@media (max-width:560px){
  h2{font-size:26px}
  section.block{padding:48px 0}
  dl.spec{grid-template-columns:1fr}
  dl.spec dt{border-bottom:0;padding-bottom:0}
  dl.spec dd{border-top:0;padding-top:4px}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}