:root{
  --ink:#101b2d;
  --ink-deep:#0a131f;
  --ink-mid:#1a2941;
  --amber:#e3a438;
  --amber-deep:#b97d1f;
  --amber-pale:#f3d99a;
  --forest:#2f4a3d;
  --forest-light:#4a6b57;
  --paper:#f6f1e7;
  --paper-line:#e2d9c3;
  --paper-card:#fffdf8;
  --ink-soft:#4c5670;
  --ink-faint:#8791a8;
  --white:#fbfaf6;
  --r-s:10px;
  --r-m:18px;
  --r-l:32px;
  --font-display:'PT Serif', Georgia, serif;
  --font-body:'PT Sans', Arial, sans-serif;
  --font-mono:'IBM Plex Mono', monospace;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-body);
  line-height:1.5;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;}
h1,h2,h3{font-family:var(--font-display); margin:0; font-weight:700;}
:focus-visible{outline:2px solid var(--amber); outline-offset:3px; border-radius:4px;}

.wrap{max-width:1180px; margin:0 auto; padding:0 32px;}
@media (max-width:640px){ .wrap{padding:0 20px;} }

/* ---------- BUTTONS ---------- */
.btn{
  display:inline-flex; align-items:center; gap:8px;
  padding:12px 24px; border-radius:999px; border:none;
  font-family:var(--font-body); font-weight:700; font-size:0.92rem;
  cursor:pointer; text-decoration:none; transition:transform .15s ease, box-shadow .15s ease;
}
.btn:hover{transform:translateY(-1px);}
.btn-amber{background:var(--amber); color:var(--ink-deep); box-shadow:0 6px 20px -8px rgba(227,164,56,0.7);}
.btn-amber:hover{background:var(--amber-deep); color:var(--white);}
.btn-ghost{background:transparent; color:var(--ink-soft); border:1px solid var(--paper-line);}
.btn-ghost:hover{border-color:var(--ink-soft); color:var(--ink);}
.btn-outline{background:transparent; color:var(--white); border:1px solid rgba(251,250,246,0.35);}
.btn-outline:hover{border-color:var(--amber); color:var(--amber);}
.btn:disabled{opacity:0.45; cursor:not-allowed; transform:none;}

/* ---------- SITE HEADER ---------- */
.site-header{
  position:sticky; top:0; z-index:50;
  background:rgba(16,27,45,0.92);
  backdrop-filter:blur(8px);
  border-bottom:1px solid rgba(227,164,56,0.18);
}
.site-header .wrap{
  display:flex; align-items:center; justify-content:space-between;
  height:76px;
}
.logo{
  display:flex; align-items:baseline; gap:2px;
  font-family:var(--font-display); font-weight:700;
  font-size:1.3rem; color:var(--white); text-decoration:none;
}
.logo em{font-style:italic; color:var(--amber); font-weight:400;}

nav.primary-nav{display:flex; align-items:center; gap:34px;}
nav.primary-nav a{
  color:var(--paper); opacity:0.8; text-decoration:none; font-size:0.95rem;
  transition:opacity .15s ease;
}
nav.primary-nav a:hover{opacity:1;}
.header-actions{display:flex; align-items:center; gap:18px;}

.back-link{
  display:flex; align-items:center; gap:8px;
  color:var(--paper); opacity:0.8; text-decoration:none; font-size:0.9rem;
}
.back-link:hover{opacity:1; color:var(--amber);}
.back-link i{font-size:0.8rem;}

.lang-toggle{
  display:flex; border:1px solid rgba(251,250,246,0.25);
  border-radius:999px; overflow:hidden; font-family:var(--font-mono);
  font-size:0.78rem;
}
.lang-toggle button{
  background:transparent; border:none; color:var(--paper);
  padding:6px 12px; cursor:pointer; opacity:0.55;
  font-family:var(--font-mono); font-size:0.78rem;
  transition:opacity .15s ease, background .15s ease;
}
.lang-toggle button.active{background:var(--amber); color:var(--ink-deep); opacity:1; font-weight:600;}

.menu-toggle{
  display:none;
  background:transparent; border:none; color:var(--white);
  font-size:1.3rem; cursor:pointer; padding:6px 8px;
}

@media (max-width:900px){
  nav.primary-nav{display:none;}
  .lang-toggle{display:none;}
  .header-actions .btn{display:none;}
  .menu-toggle{display:block;}
}

/* ---------- MOBILE NAVIGATION OVERLAY & DRAWER ---------- */
.mobile-nav-overlay{
  position:fixed; inset:0; background:rgba(10,19,31,0.55);
  opacity:0; pointer-events:none; transition:opacity .25s ease;
  z-index:60;
}
.mobile-nav-overlay.open{opacity:1; pointer-events:auto;}

.mobile-nav{
  position:fixed; top:0; right:0; height:100%;
  width:min(320px, 84vw);
  background:var(--ink-deep);
  border-left:1px solid rgba(227,164,56,0.2);
  z-index:70;
  transform:translateX(100%);
  transition:transform .3s ease;
  display:flex; flex-direction:column;
  padding:22px 26px 32px;
}
.mobile-nav.open{transform:translateX(0);}

.mobile-nav-top{
  display:flex; justify-content:space-between; align-items:center;
  margin-bottom:36px;
}
.mobile-nav-close{
  background:transparent; border:none; color:var(--white);
  font-size:1.3rem; cursor:pointer; padding:6px;
}
.mobile-nav-links{
  list-style:none; margin:0; padding:0;
  display:flex; flex-direction:column; gap:6px;
}
.mobile-nav-links a{
  display:block; padding:14px 4px; text-decoration:none;
  color:var(--paper); font-family:var(--font-display); font-size:1.15rem;
  border-bottom:1px solid rgba(251,250,246,0.08);
}
.mobile-nav-links a:hover{color:var(--amber);}

.mobile-lang-toggle{
  display:flex; border:1px solid rgba(251,250,246,0.25);
  border-radius:999px; overflow:hidden; font-family:var(--font-mono);
  font-size:0.8rem; margin-top:28px; align-self:flex-start;
}
.mobile-lang-toggle button{
  background:transparent; border:none; color:var(--paper);
  padding:8px 16px; cursor:pointer; opacity:0.55;
  font-family:var(--font-mono); font-size:0.8rem;
}
.mobile-lang-toggle button.active{
  background:var(--amber); color:var(--ink-deep); opacity:1; font-weight:600;
}
.mobile-nav .btn{margin-top:28px; justify-content:center;}

/* ---------- SITE FOOTER ---------- */
.site-footer{
  background:var(--ink-deep); color:var(--ink-faint); padding:70px 0 30px;
  font-size:0.88rem;
}
.footer-grid{
  display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:40px;
  padding-bottom:44px; border-bottom:1px solid rgba(251,250,246,0.1);
}
@media (max-width:760px){ .footer-grid{grid-template-columns:1fr 1fr; gap:32px;} }
.footer-grid h4{
  color:var(--white); font-family:var(--font-body); font-size:0.86rem;
  text-transform:uppercase; letter-spacing:0.04em; margin-bottom:16px;
}
.footer-grid ul{list-style:none; padding:0; margin:0; display:flex; flex-direction:column; gap:10px;}
.footer-grid a{text-decoration:none; color:var(--ink-faint);}
.footer-grid a:hover{color:var(--amber);}
.footer-note{
  font-size:0.82rem; color:var(--ink-faint); max-width:34ch; margin-top:14px; font-style:italic;
}
.footer-bottom{
  display:flex; justify-content:space-between; padding-top:24px; flex-wrap:wrap; gap:12px;
  font-size:0.76rem;
}

@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  *{animation-duration:0.001ms !important; transition-duration:0.001ms !important;}
}