/* ========================================
   CNSTECH Terms & Conditions — terms.css
   Dark technical theme, cyan accent
   ======================================== */

/* --- Reset & Base --- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

:root{
  --bg:#06090f;
  --bg-card:#0a0f1a;
  --bg-card-alt:#0f1626;
  --bg-surface:#131c30;
  --bg-header:rgba(10,15,26,.78);
  --border:rgba(255,255,255,.08);
  --border-light:rgba(255,255,255,.14);
  --border-cyan:rgba(0,180,216,.25);
  --text:#e6edf5;
  --text-muted:#9fb0c5;
  --text-heading:#f5f8fb;
  --accent:#00b4d8;
  --accent-dim:#0077b6;
  --accent-glow:rgba(0,180,216,.12);
  --link:#00b4d8;
  --link-hover:#48cae4;
  --max-w:1220px;
  --radius:6px;
  --font-body:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,monospace;
}

html{scroll-behavior:smooth;scroll-padding-top:80px}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

body{
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.7;
  color:var(--text);
  background-color:var(--bg);
  background-image:
    radial-gradient(700px 420px at 12% -10%, rgba(0,180,216,.12), transparent 62%),
    radial-gradient(760px 420px at 92% 12%, rgba(0,119,182,.10), transparent 64%),
    linear-gradient(180deg, var(--bg-card) 0%, var(--bg) 340px);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
}

a{color:var(--link);text-decoration:none;transition:color .15s}
a:hover,a:focus-visible{color:var(--link-hover)}
a:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:2px}

img{max-width:100%;height:auto;display:block}

/* --- Skip Link --- */
.skip-link{
  position:absolute;left:-9999px;top:auto;
  background:var(--accent);color:#000;padding:8px 16px;
  font-weight:600;z-index:9999;border-radius:0 0 var(--radius) var(--radius);
}
.skip-link:focus{left:50%;transform:translateX(-50%);top:0}

/* --- Progress Bar --- */
.progress-bar{
  position:fixed;top:0;left:0;height:3px;width:0;
  background:linear-gradient(90deg,var(--accent),var(--accent-dim));
  z-index:1001;transition:width .1s linear;
  pointer-events:none;
}

/* --- Header --- */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:var(--bg-header);
  border-bottom:1px solid var(--border);
  backdrop-filter:saturate(140%) blur(10px);
  -webkit-backdrop-filter:saturate(140%) blur(10px);
}
.header-inner{
  max-width:var(--max-w);margin:0 auto;
  display:flex;align-items:center;justify-content:space-between;
  padding:12px 24px;
}
.site-logo{width:154px;height:auto}
.logo-link{flex-shrink:0;display:flex;align-items:center}

.main-nav ul{display:flex;gap:28px;list-style:none}
.main-nav a{
  color:var(--text);font-weight:500;font-size:.95rem;
  padding:6px 0;position:relative;transition:color .15s;
}
.main-nav a::after{
  content:'';position:absolute;bottom:0;left:0;width:0;height:2px;
  background:var(--accent);transition:width .2s;
}
.main-nav a:hover::after,.main-nav a:focus-visible::after{width:100%}
.main-nav a:hover{color:var(--text-heading)}

.nav-toggle{
  display:none;background:none;border:none;color:var(--text);
  cursor:pointer;padding:8px;border-radius:var(--radius);
}
.nav-toggle:focus-visible{outline:2px solid var(--accent)}

/* Mobile nav */
@media(max-width:768px){
  .nav-toggle{display:flex;align-items:center}
  .main-nav{
    display:none;position:absolute;top:100%;left:0;right:0;
    background:var(--bg-header);border-bottom:1px solid var(--border);
    padding:12px 24px 20px;
  }
  .main-nav.open{display:block}
  .main-nav ul{flex-direction:column;gap:12px}
  .main-nav a{font-size:1.05rem;display:block;padding:8px 0}
}

/* --- Page Header --- */
.page-header{
  background-color:var(--bg-card);
  background-image:
    radial-gradient(820px 360px at 18% 0%, rgba(0,180,216,.16), transparent 62%),
    radial-gradient(640px 320px at 92% 12%, rgba(0,119,182,.14), transparent 66%),
    linear-gradient(180deg, var(--bg-card) 0%, var(--bg) 100%);
  border-bottom:1px solid var(--border);
  padding:32px 24px 28px;
  position:relative;
  overflow:hidden;
}
.page-header::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
  background-size:56px 56px;
  mask-image:linear-gradient(180deg, #000 0%, transparent 92%);
  -webkit-mask-image:linear-gradient(180deg, #000 0%, transparent 92%);
}
.page-header-inner{max-width:var(--max-w);margin:0 auto;position:relative;z-index:1}

.breadcrumb ol{display:flex;gap:8px;list-style:none;font-size:.85rem;color:var(--text-muted);margin-bottom:16px}
.breadcrumb li+li::before{content:"/";margin-right:8px;color:var(--border-light)}
.breadcrumb a{color:var(--text-muted)}
.breadcrumb a:hover{color:var(--accent)}

.page-header h1{
  font-size:clamp(1.6rem,3vw,2.2rem);
  color:var(--text-heading);font-weight:700;
  margin-bottom:10px;line-height:1.25;
}
.page-subtitle{
  color:var(--text-muted);font-size:1rem;
  max-width:700px;line-height:1.6;margin-bottom:12px;
}
.last-updated{
  font-size:.85rem;color:var(--accent-dim);
  font-weight:500;
}

/* --- Document Layout --- */
.document-layout{
  max-width:var(--max-w);margin:0 auto;
  display:grid;
  grid-template-columns:280px 1fr;
  gap:40px;
  padding:32px 24px 64px;
  align-items:start;
}

/* --- TOC Sidebar --- */
.toc-sidebar{position:sticky;top:80px}

.toc-mobile{display:none}

.toc-desktop{
  background:linear-gradient(180deg, var(--bg-card-alt) 0%, var(--bg-card) 100%);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:20px;
}
.toc-heading{
  font-size:.8rem;text-transform:uppercase;letter-spacing:.08em;
  color:var(--text-muted);font-weight:600;margin-bottom:14px;
}
.toc-nav ol{list-style:none;counter-reset:toc}
.toc-nav li{margin-bottom:6px}
.toc-nav a{
  font-size:.87rem;color:var(--text-muted);
  display:block;padding:4px 8px;border-left:2px solid transparent;
  border-radius:0 3px 3px 0;transition:all .15s;line-height:1.4;
}
.toc-nav a:hover,.toc-nav a.active{
  color:var(--accent);border-left-color:var(--accent);
  background:var(--accent-glow);
}

/* Mobile TOC */
@media(max-width:900px){
  .document-layout{grid-template-columns:1fr;gap:0;padding:16px 16px 48px}
  .toc-sidebar{position:relative;top:auto;margin-bottom:24px}
  .toc-desktop{display:none}
  .toc-mobile{
    display:block;
    background:linear-gradient(180deg, var(--bg-card-alt) 0%, var(--bg-card) 100%);
    border:1px solid var(--border);
    border-radius:var(--radius);
  }
  .toc-mobile summary{
    padding:14px 18px;cursor:pointer;font-weight:600;
    color:var(--text-heading);font-size:.95rem;
    list-style:none;display:flex;align-items:center;justify-content:space-between;
  }
  .toc-mobile summary::after{content:"▾";font-size:1.1rem;color:var(--accent)}
  .toc-mobile[open] summary::after{content:"▴"}
  .toc-mobile summary::-webkit-details-marker{display:none}
  .toc-mobile .toc-nav{padding:0 18px 14px}
  .toc-mobile .toc-nav a{padding:6px 8px;min-height:44px;display:flex;align-items:center}
}

/* --- Terms Content --- */
.terms-content{min-width:0}

/* Identity Card */
.identity-card{
  background:linear-gradient(180deg, var(--bg-card-alt) 0%, var(--bg-card) 100%);
  border:1px solid var(--border);
  border-radius:var(--radius);padding:24px 28px;margin-bottom:28px;
  border-left:3px solid var(--accent);
}
.identity-title{font-size:1rem;color:var(--accent);margin-bottom:14px;font-weight:600}
.identity-list{display:grid;grid-template-columns:auto 1fr;gap:6px 16px;font-size:.92rem}
.identity-list dt{color:var(--text-muted);font-weight:500}
.identity-list dd{color:var(--text)}

/* Key Points */
.key-points{
  background:linear-gradient(180deg, var(--bg-surface) 0%, var(--bg-card-alt) 100%);
  border:1px solid var(--border);
  border-radius:var(--radius);padding:24px 28px;margin-bottom:32px;
}
.key-points h2{font-size:1.05rem;color:var(--text-heading);margin-bottom:14px;font-weight:600}
.key-points ul{list-style:none;padding:0}
.key-points li{
  padding:6px 0 6px 22px;position:relative;
  font-size:.93rem;color:var(--text);line-height:1.6;
}
.key-points li::before{
  content:"";position:absolute;left:0;top:14px;
  width:8px;height:8px;border-radius:50%;
  background:var(--accent);opacity:.7;
}

/* Sections */
.terms-section{margin-bottom:36px;scroll-margin-top:80px}

.terms-section h2{
  font-size:1.25rem;color:var(--text-heading);
  font-weight:700;margin-bottom:14px;
  padding-bottom:8px;border-bottom:1px solid var(--border);
  line-height:1.35;
}
.terms-section h3{
  font-size:1.05rem;color:var(--text-heading);
  font-weight:600;margin:20px 0 10px;
}

.terms-section p{margin-bottom:12px;max-width:72ch}

.terms-section ul,.terms-section ol{
  margin:8px 0 16px 20px;
}
.terms-section li{
  margin-bottom:6px;line-height:1.6;
  padding-left:4px;
}

.terms-section strong{color:var(--text-heading)}

/* Contact Panel */
.contact-panel{
  background:linear-gradient(180deg, var(--bg-card-alt) 0%, var(--bg-card) 100%);
  border:1px solid var(--border);
  border-radius:var(--radius);padding:24px 28px;
  margin-top:12px;
}
.contact-panel h2{font-size:1rem;color:var(--accent);margin-bottom:14px;font-weight:600}
.contact-panel ul{list-style:none}
.contact-panel li{
  display:flex;align-items:center;gap:10px;
  margin-bottom:10px;font-size:.92rem;
}
.contact-panel svg{flex-shrink:0;color:var(--accent);opacity:.7}
.contact-ref{font-size:.85rem;color:var(--text-muted);margin-top:12px}

/* --- Back to Top --- */
.back-to-top{
  position:fixed;bottom:28px;right:28px;
  width:44px;height:44px;border-radius:50%;
  background:var(--accent);color:#000;border:none;
  cursor:pointer;display:flex;align-items:center;justify-content:center;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .2s,visibility .2s,transform .2s;
  z-index:900;box-shadow:0 2px 12px rgba(0,200,255,.25);
}
.back-to-top.visible{opacity:1;visibility:visible;transform:translateY(0)}
.back-to-top:hover{background:var(--link-hover)}
.back-to-top:focus-visible{outline:2px solid #fff;outline-offset:2px}

/* --- Footer --- */
.site-footer{
  background:var(--bg-card);
  border-top:1px solid var(--border);
  padding:48px 24px 0;
}
.footer-inner{
  max-width:var(--max-w);margin:0 auto;
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:36px;
}
.footer-brand p{font-size:.88rem;color:var(--text-muted);margin:14px 0;line-height:1.6}
.footer-logo{width:140px;height:auto}

.google-review-btn{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--accent);color:#000;
  font-size:.82rem;font-weight:600;
  padding:8px 16px;border-radius:var(--radius);
  transition:background .15s;
}
.google-review-btn:hover{background:var(--link-hover);color:#000}

.footer-col h3{
  font-size:.75rem;text-transform:uppercase;letter-spacing:.1em;
  color:var(--text-muted);font-weight:600;margin-bottom:14px;
}
.footer-col ul{list-style:none}
.footer-col li{margin-bottom:8px}
.footer-col a{color:var(--text);font-size:.88rem;transition:color .15s}
.footer-col a:hover{color:var(--accent)}

.footer-bottom{
  max-width:var(--max-w);margin:36px auto 0;
  padding:18px 0;border-top:1px solid var(--border);
  text-align:left;font-size:.8rem;color:var(--text-muted);
  display:flex;align-items:center;justify-content:space-between;gap:1rem;flex-wrap:wrap;
}
.footer-legal-separator{color:rgba(255,255,255,.32);margin:0 .35rem}
.footer-bottom .footer-legal-link{color:var(--text);font-size:inherit}
.footer-bottom .footer-legal-link:hover{color:var(--accent)}
.footer-social{display:flex;align-items:center;justify-content:flex-end;gap:.55rem;flex-wrap:wrap}
.footer-social a{
  width:34px;height:34px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid rgba(0,214,255,.28);border-radius:8px;background:rgba(0,214,255,.06);
  color:rgba(221,236,255,.78);transition:color .15s,border-color .15s,background .15s,transform .15s;
}
.footer-social a:hover,.footer-social a:focus-visible{
  color:var(--accent);border-color:rgba(0,214,255,.62);background:rgba(0,214,255,.13);transform:translateY(-1px);
}
.footer-social svg{width:17px;height:17px;display:block;fill:currentColor}

@media(max-width:900px){
  .footer-inner{grid-template-columns:1fr 1fr;gap:28px}
}
@media(max-width:540px){
  .footer-inner{grid-template-columns:1fr;gap:24px}
  .footer-bottom{text-align:left;padding:16px 0;align-items:flex-start}
  .footer-social{justify-content:flex-start}
}

/* --- Print Styles --- */
@media print{
  *{background:transparent!important;color:#000!important;box-shadow:none!important}
  body{font-size:11pt;line-height:1.5}

  .site-header,.site-footer,.progress-bar,
  .back-to-top,.nav-toggle,.toc-sidebar,
  .google-review-btn,.contact-panel{display:none!important}

  .document-layout{display:block;padding:0}
  .page-header{padding:12px 0;border-bottom:1px solid #ccc}

  a[href]::after{content:" (" attr(href) ")";font-size:.8em;color:#666}
  a[href^="/"]{text-decoration:underline}
  a[href^="/"]::after{content:" (https://www.cnstech.gr" attr(href) ")"}
  a[href^="tel:"]::after,a[href^="mailto:"]::after{content:""}

  .terms-section{page-break-inside:avoid}
  h2,h3{page-break-after:avoid}

  .identity-card{border:1px solid #ccc;padding:12px}
  .key-points{border:1px solid #ccc;padding:12px}
}

/* --- Reduced Motion --- */
@media(prefers-reduced-motion:reduce){
  *{transition-duration:0s!important;animation-duration:0s!important}
  .progress-bar{display:none}
}