/* ══ TREVLIX Shared Navigation & Footer ══════════════════════════
   Gemeinsame Styles für alle Seiten — v1.5.0 Visual Upgrade
   ════════════════════════════════════════════════════════════════ */

/* ── CSS Variables (matching index.html theme) ── */
:root {
  --ink:   #020507;
  --ink1:  #060c12;
  --ink2:  #091017;
  --ink3:  #0d1820;
  --ink4:  #122030;
  --jade:  #D4AF37;
  --jade2: #C9A227;
  --blue:  #0ea5e9;
  --amber: #f59e0b;
  --red:   #ef4444;
  --muted: #1e3344;
  --sub:   #3a5568;
  --dim:   #7a9ab0;
  --txt:   #b8d0e4;
  --white: #e8f4ff;
  --line:  rgba(212,175,55,.08);
  --line2: rgba(255,255,255,.06);
  --fw: 'Barlow', sans-serif;
  --fc: 'Barlow Condensed', sans-serif;
  --fm: 'Fira Code', monospace;
  --radius: 10px;
  --shadow-jade: 0 0 24px rgba(212,175,55,.22);
  --shadow-blue: 0 0 24px rgba(14,165,233,.18);
}

/* ── Skip to Content (Accessibility) ── */
.skip-link {
  position: absolute; top:-100px; left:16px; z-index:9999;
  background: var(--jade); color: var(--ink); font-weight:700;
  padding: 10px 20px; border-radius: 0 0 8px 8px;
  font-family: var(--fw); font-size: 14px;
  text-decoration: none; transition: top .3s;
}
.skip-link:focus { top: 0; }

/* ── Site Navigation Bar ── */
.site-nav {
  position: fixed; top:0; left:0; right:0; z-index:400;
  height: 62px;
  display: flex; align-items:center; justify-content:space-between;
  padding: 0 5vw;
  background: rgba(2,5,7,.88);
  backdrop-filter: blur(32px) saturate(2);
  -webkit-backdrop-filter: blur(32px) saturate(2);
  border-bottom: 1px solid var(--line);
  transition: background .4s, box-shadow .4s;
}
.site-nav::after {
  content: '';
  position: absolute; bottom: -1px; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(212,175,55,.22), rgba(201,162,39,.12), transparent);
  pointer-events: none;
}
.site-nav.scrolled {
  background: rgba(2,5,7,.97);
  box-shadow: 0 4px 32px rgba(0,0,0,.4);
}

.site-nav-logo { display:flex; align-items:center; gap:10px; text-decoration:none; }
.site-nav-logo-mark {
  width:32px; height:32px; border-radius:8px;
  background: linear-gradient(135deg, var(--jade) 0%, #C9A227 60%, #B8960C 100%);
  display:flex; align-items:center; justify-content:center;
  font-size:15px; flex-shrink:0;
  box-shadow: 0 0 20px rgba(212,175,55,.4), inset 0 1px 0 rgba(255,255,255,.15);
  transition: box-shadow .3s, transform .2s;
}
.site-nav-logo:hover .site-nav-logo-mark {
  box-shadow: 0 0 32px rgba(212,175,55,.6), inset 0 1px 0 rgba(255,255,255,.2);
  transform: scale(1.05);
}
.site-nav-logo-txt {
  font-family: var(--fc); font-weight:900; font-size:22px;
  letter-spacing:1px; color:var(--white); line-height:1;
  transition: color .2s;
}
.site-nav-logo-txt em { font-style:normal; color:var(--jade); font-weight:900; }
.site-nav-logo-sub { font-family:var(--fm); font-size:8px; color:var(--sub); letter-spacing:1px; margin-top:1px; }

.site-nav-center { display:flex; gap:28px; }
.site-nav-center a {
  font-size:13px; font-weight:500; color:var(--dim);
  text-decoration:none; letter-spacing:.3px;
  transition: color .2s; position:relative; padding: 4px 0;
}
.site-nav-center a::after {
  content:''; position:absolute; bottom:-4px; left:0; right:100%;
  height:1px; background: linear-gradient(90deg, var(--jade), var(--jade2));
  transition: right .3s cubic-bezier(.4,0,.2,1);
}
.site-nav-center a:hover { color:var(--white); }
.site-nav-center a:hover::after { right:0; }
.site-nav-center a.active { color:var(--jade); }
.site-nav-center a.active::after { right:0; }

.site-nav-right { display:flex; align-items:center; gap:12px; }
.site-nav-gh {
  display:flex; align-items:center; gap:7px;
  font-family:var(--fw); font-size:12px; font-weight:600;
  color:var(--dim); text-decoration:none; padding:7px 14px;
  border:1px solid var(--muted); border-radius:8px;
  transition: all .25s; white-space:nowrap;
  background: rgba(255,255,255,.02);
}
.site-nav-gh:hover {
  border-color:rgba(212,175,55,.4); color:var(--jade);
  background: rgba(212,175,55,.04);
  box-shadow: 0 0 16px rgba(212,175,55,.12);
}
.site-nav-gh svg { flex-shrink:0; }

.site-nav-cta {
  font-family:var(--fc); font-size:14px; font-weight:800;
  background: linear-gradient(135deg, var(--jade) 0%, #C9A227 100%);
  color:var(--ink); text-decoration:none;
  padding:9px 22px; border-radius:8px; letter-spacing:.5px;
  transition: all .25s; white-space:nowrap; text-transform:uppercase;
  box-shadow: 0 2px 12px rgba(212,175,55,.25);
}
.site-nav-cta:hover {
  background: linear-gradient(135deg, #F5D060 0%, #D4AF37 100%);
  box-shadow: 0 4px 24px rgba(212,175,55,.45);
  transform: translateY(-1px);
}

.site-nav-auth-login {
  font-family:var(--fw); font-size:12px; font-weight:600;
  color:var(--dim); text-decoration:none; padding:7px 14px;
  border:1px solid var(--muted); border-radius:8px;
  transition: all .25s; white-space:nowrap;
  background: rgba(255,255,255,.02);
}
.site-nav-auth-login:hover {
  border-color:rgba(14,165,233,.4); color:var(--blue);
  background: rgba(14,165,233,.04);
}
.site-nav-auth-register {
  font-family:var(--fw); font-size:12px; font-weight:700;
  color:var(--ink); text-decoration:none; padding:7px 16px;
  border-radius:8px; transition: all .25s; white-space:nowrap;
  background: linear-gradient(135deg, var(--blue) 0%, #0284c7 100%);
  box-shadow: 0 2px 12px rgba(14,165,233,.2);
}
.site-nav-auth-register:hover {
  background: linear-gradient(135deg, #38bdf8 0%, #0ea5e9 100%);
  box-shadow: 0 4px 24px rgba(14,165,233,.4);
  transform: translateY(-1px);
}

.site-nav-mobile-btn {
  display:none; background:none; border:none; color:var(--txt);
  font-size:22px; cursor:pointer; padding:4px;
  transition: color .2s;
}
.site-nav-mobile-btn:hover { color:var(--jade); }

/* ── Mobile Nav Overlay ── */
.site-mobile-nav {
  display:none; position:fixed; top:62px; left:0; right:0; z-index:399;
  background:rgba(2,5,7,.98);
  border-bottom:1px solid rgba(0,255,136,.1);
  padding:20px 5vw; flex-direction:column; gap:14px;
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
}
.site-mobile-nav a {
  color:var(--dim); text-decoration:none; font-size:16px; font-weight:500;
  padding:8px 0; transition: color .2s;
  border-bottom: 1px solid rgba(255,255,255,.04);
}
.site-mobile-nav a:last-child { border-bottom: none; }
.site-mobile-nav a:hover { color:var(--jade); }
.site-mobile-nav a.active { color:var(--jade); }
.site-mobile-nav hr {
  border:none; border-top:1px solid var(--muted);
}

/* ── Breadcrumbs ── */
.breadcrumbs {
  display: flex; align-items:center; gap:8px; flex-wrap:wrap;
  padding: 14px 0 0;
  font-size: 12px; font-family: var(--fm);
  color: var(--sub);
}
.breadcrumbs a { color: var(--dim); text-decoration:none; transition: color .2s; }
.breadcrumbs a:hover { color: var(--jade); }
.breadcrumbs .sep { color: var(--muted); }

/* ── Site Footer ── */
.site-footer {
  border-top: 1px solid rgba(0,255,136,.06);
  margin-top: 80px;
  padding: 56px 5vw 36px;
  background: linear-gradient(180deg, var(--ink1) 0%, var(--ink) 100%);
  position: relative;
  overflow: hidden;
}
.site-footer::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(212,175,55,.3), rgba(201,162,39,.18), transparent);
}
.site-footer-inner {
  max-width: 1200px; margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 2fr 1fr;
  gap: 48px;
  position: relative; z-index: 1;
}
.site-footer-brand .footer-logo {
  font-family: var(--fc); font-weight:900; font-size:26px;
  color: var(--white); letter-spacing:.5px;
}
.site-footer-brand .footer-logo em { font-style:normal; color:var(--jade); font-weight:900; }
.site-footer-brand .footer-desc {
  font-size:13px; color:var(--sub); margin-top:8px; line-height:1.7;
}
.site-footer-brand .footer-version {
  font-family:var(--fm); font-size:10px; color:var(--muted); margin-top:10px;
  padding: 3px 8px; background: rgba(212,175,55,.04);
  border: 1px solid rgba(212,175,55,.1); border-radius: 4px; display: inline-block;
}

.site-footer-links {
  display: grid; grid-template-columns: 1fr 1fr; gap: 24px;
}
.site-footer-links h4 {
  font-family: var(--fc); font-size:13px; font-weight:800;
  color: var(--white); letter-spacing:1.5px; text-transform:uppercase;
  margin-bottom: 14px;
}
.site-footer-links a {
  display: block; font-size:13px; color:var(--sub);
  text-decoration:none; padding:4px 0; transition: color .2s, padding-left .2s;
}
.site-footer-links a:hover { color:var(--jade); padding-left: 6px; text-shadow: 0 0 12px rgba(212,175,55,.3); }

.site-footer-right {
  text-align: right;
}
.site-footer-right .footer-gh {
  display:inline-flex; align-items:center; gap:8px;
  padding:10px 20px; border:1px solid var(--muted); border-radius:10px;
  color:var(--dim); text-decoration:none; font-size:13px; font-weight:600;
  transition: all .25s; background: rgba(255,255,255,.02);
}
.site-footer-right .footer-gh:hover {
  border-color:rgba(212,175,55,.4); color:var(--jade);
  background: rgba(212,175,55,.04);
  box-shadow: var(--shadow-jade);
}

.site-footer-bottom {
  max-width: 1200px; margin: 28px auto 0;
  padding-top: 20px;
  border-top: 1px solid rgba(255,255,255,.04);
  display: flex; justify-content:space-between; align-items:center;
  flex-wrap: wrap; gap:12px;
  font-size:12px; color:var(--muted); font-family:var(--fm);
}

/* ── Back to Top Button ── */
.back-to-top {
  position:fixed; bottom:24px; right:24px; z-index:300;
  width:44px; height:44px; border-radius:12px;
  background: rgba(9,16,23,.9);
  border:1px solid rgba(212,175,55,.2);
  color:var(--jade); font-size:18px;
  display:flex; align-items:center; justify-content:center;
  cursor:pointer; transition: all .3s;
  opacity:0; pointer-events:none; transform:translateY(14px);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 4px 20px rgba(0,0,0,.4);
}
.back-to-top.visible { opacity:1; pointer-events:auto; transform:translateY(0); }
.back-to-top:hover {
  background: rgba(212,175,55,.08);
  border-color:rgba(212,175,55,.5);
  box-shadow: var(--shadow-jade);
  transform: translateY(-2px);
}

/* ── Print Stylesheet ── */
@media print {
  .site-nav, .site-mobile-nav, .back-to-top, .skip-link,
  .lang-switcher, .site-nav-mobile-btn { display:none !important; }
  body { background:#fff !important; color:#000 !important; }
  .site-footer { border-top:1px solid #ccc; background:#fff !important; }
  .site-footer, .site-footer * { color:#333 !important; }
  a { color:#0066cc !important; }
  pre, code { background:#f5f5f5 !important; color:#000 !important; border-color:#ccc !important; }
}

/* ── Responsive ── */
@media (max-width: 768px) {
  .site-nav-center { display:none; }
  .site-nav-mobile-btn { display:block; }
  .site-nav-gh, .site-nav-cta, .site-nav-auth-login, .site-nav-auth-register { display:none; }

  .site-footer-inner { grid-template-columns:1fr; gap:28px; }
  .site-footer-right { text-align:left; }
  .site-footer-bottom { flex-direction:column; text-align:center; }
}

@media (max-width: 480px) {
  .site-nav { padding:0 16px; }
  .site-footer { padding:32px 16px 24px; }
}