/* ============ TDT — Tsarov-Donov Tech — shared styles ============ */

:root{
  --bg:#0b0b0d;
  --bg-alt:#141416;
  --bg-card:#18181b;
  --line:#2a2a2e;
  --text:#eaeaea;
  --text-dim:#a3a3a8;
  --gold:#d4af37;
  --gold-bright:#f3d374;
  --gold-dim:#a8791f;
  --sidebar-w:230px;
  --radius:10px;
  --shadow:0 10px 30px rgba(0,0,0,.45);
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:'Inter',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  line-height:1.55;
}
h1,h2,h3,h4{
  font-family:'Rajdhani','Inter',sans-serif;
  font-weight:700;
  letter-spacing:.02em;
  margin:0 0 .5em;
}
p{margin:0 0 1em;color:var(--text-dim);}
a{color:inherit;text-decoration:none;}
img,svg{max-width:100%;display:block;}
.container{max-width:1080px;margin:0 auto;padding:0 28px;}

/* ---------- Diagonal repeating "TDT" background texture ---------- */
.tdt-texture{
  position:fixed;
  inset:0;
  z-index:-1;
  pointer-events:none;
  background:
    repeating-linear-gradient(135deg,
      transparent 0 40px,
      rgba(212,175,55,.035) 40px 41px,
      transparent 41px 80px);
  opacity:.9;
}
.tdt-texture::before{
  content:"TDT  TDT  TDT  TDT  TDT  TDT  TDT  TDT  TDT  TDT  TDT  TDT  TDT  TDT  TDT  TDT  TDT  TDT  TDT  TDT  ";
  position:absolute;
  inset:-50% -20%;
  display:block;
  font-family:'Rajdhani',sans-serif;
  font-weight:700;
  font-size:13px;
  line-height:60px;
  color:rgba(212,175,55,.05);
  letter-spacing:6px;
  transform:rotate(-35deg);
  white-space:pre-wrap;
  word-break:break-all;
}

/* ---------- Layout: sidebar + main ---------- */
.layout{
  display:flex;
  min-height:100vh;
}

.sidebar{
  width:var(--sidebar-w);
  flex-shrink:0;
  background:linear-gradient(180deg,var(--bg-alt),var(--bg));
  border-right:1px solid var(--line);
  padding:28px 18px 24px;
  position:sticky;
  top:0;
  height:100vh;
  display:flex;
  flex-direction:column;
  align-items:center;
}

.sidebar .logo-link{display:block;width:84px;margin:0 auto 6px;}
.sidebar .brand{
  text-align:center;
  font-family:'Rajdhani',sans-serif;
  font-weight:700;
  font-size:1.35rem;
  letter-spacing:.12em;
  color:var(--gold);
  margin-bottom:2px;
}
.sidebar .brand-sub{
  text-align:center;
  font-size:.65rem;
  color:var(--text-dim);
  letter-spacing:.14em;
  text-transform:uppercase;
  line-height:1.7;
  margin-bottom:26px;
}

.nav-links{
  list-style:none;
  padding:0;
  margin:0;
  width:100%;
  display:flex;
  flex-direction:column;
  gap:4px;
}
.nav-links a{
  display:block;
  padding:11px 14px;
  border-radius:6px;
  color:var(--text-dim);
  font-family:'Rajdhani',sans-serif;
  font-weight:600;
  font-size:.95rem;
  letter-spacing:.04em;
  text-transform:uppercase;
  text-align:center;
  transition:color .18s ease, background .18s ease;
}
.nav-links a:hover,
.nav-links a:focus-visible,
.nav-links a.active{
  color:var(--gold-bright);
  background:rgba(212,175,55,.08);
}

/* ---------- Language switcher ---------- */
.lang-switch{
  display:flex;
  align-items:center;
  gap:6px;
  font-family:'Rajdhani',sans-serif;
  font-weight:700;
  font-size:.85rem;
  letter-spacing:.08em;
  color:#5f5f66;
}
.lang-switch .lang-opt{
  color:var(--text-dim);
  padding:2px 4px;
  border-radius:4px;
  transition:color .18s ease;
}
.lang-switch .lang-opt:hover{color:var(--gold-bright);}
.lang-switch .lang-opt.active{color:var(--gold);}
.sidebar-lang{
  justify-content:center;
  margin-top:22px;
  padding-top:18px;
  border-top:1px solid var(--line);
  width:100%;
}

.sidebar-footer{
  margin-top:auto;
  text-align:center;
  font-size:.72rem;
  color:#5f5f66;
  padding-top:18px;
}

/* Mobile top bar + toggle */
.topbar{
  display:none;
  align-items:center;
  justify-content:space-between;
  padding:14px 18px;
  background:var(--bg-alt);
  border-bottom:1px solid var(--line);
  position:sticky;
  top:0;
  z-index:40;
}
.topbar .logo-link{width:40px;display:flex;align-items:center;gap:10px;}
.topbar .brand{font-family:'Rajdhani',sans-serif;font-weight:700;letter-spacing:.1em;color:var(--gold);}
.nav-toggle{
  background:none;
  border:1px solid var(--line);
  border-radius:6px;
  width:40px;height:36px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
  cursor:pointer;
}
.nav-toggle span{width:20px;height:2px;background:var(--gold);display:block;}

main{flex:1;min-width:0;}

/* ---------- Hero ---------- */
.hero{
  padding:90px 0 64px;
  border-bottom:1px solid var(--line);
}
.hero .eyebrow{
  color:var(--gold);
  font-family:'Rajdhani',sans-serif;
  font-weight:700;
  letter-spacing:.18em;
  text-transform:uppercase;
  font-size:.8rem;
  margin-bottom:14px;
}
.hero h1{font-size:clamp(2.1rem,4vw,3.2rem);max-width:820px;}
.hero p.lead{font-size:1.1rem;max-width:640px;}

.value-row{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(150px,1fr));
  gap:18px;
  margin-top:40px;
}
.value-item{
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:16px 14px;
  background:var(--bg-card);
}
.value-item .num{color:var(--gold);font-family:'Rajdhani',sans-serif;font-weight:700;font-size:1.1rem;display:block;margin-bottom:4px;}
.value-item span.label{font-size:.85rem;color:var(--text-dim);}

/* ---------- Tile grid ---------- */
.tile-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(260px,1fr));
  gap:22px;
  padding:56px 0 80px;
}
.tile{
  position:relative;
  display:block;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--bg-card);
  overflow:hidden;
  transition:border-color .2s ease, transform .2s ease, box-shadow .2s ease;
}
.tile:hover,.tile:focus-visible{
  border-color:var(--gold);
  transform:translateY(-4px);
  box-shadow:var(--shadow);
}
.tile .tile-art{
  aspect-ratio:4/3;
  background:linear-gradient(160deg,#1b1b1f,#0e0e10);
  display:flex;align-items:center;justify-content:center;
  position:relative;
  overflow:hidden;
}
.tile .tile-photo{
  width:100%;height:100%;
  object-fit:cover;
  filter:brightness(.88) saturate(1.05);
  transition:filter .25s ease, transform .35s ease;
}
.tile:hover .tile-photo{filter:brightness(1) saturate(1.1);transform:scale(1.03);}
/* second image revealed on hover (Corporate tile) */
.tile .tile-photo.hover-swap{
  position:absolute;inset:0;
  opacity:0;
}
.tile:hover .tile-photo.hover-swap{opacity:1;}
.tile .tile-icon{
  position:absolute;
  top:12px;right:12px;
  width:34px;height:34px;
  opacity:.55;
  filter:grayscale(1) brightness(1.4);
  transition:opacity .2s ease, filter .2s ease;
}
.tile:hover .tile-icon{opacity:1;filter:none;}
.tile .tile-body{padding:18px 18px 22px;}
.tile h3{font-size:1.15rem;margin-bottom:6px;color:var(--text);}
.tile:hover h3{color:var(--gold-bright);}
.tile p{font-size:.92rem;margin-bottom:0;}
.tile .go{
  display:inline-block;margin-top:10px;font-size:.8rem;
  color:var(--gold);font-family:'Rajdhani',sans-serif;font-weight:700;letter-spacing:.06em;text-transform:uppercase;
}

/* ---------- Generic sections ---------- */
.section{padding:64px 0;border-bottom:1px solid var(--line);}
.section:last-of-type{border-bottom:none;}
.section .kicker{
  color:var(--gold);
  font-family:'Rajdhani',sans-serif;
  font-weight:700;
  letter-spacing:.16em;
  text-transform:uppercase;
  font-size:.78rem;
  margin-bottom:10px;
}
.two-col{
  display:grid;
  grid-template-columns:1.1fr 1fr;
  gap:44px;
  align-items:center;
}
@media (max-width:820px){.two-col{grid-template-columns:1fr;}}

.illustration-frame{
  background:linear-gradient(160deg,#1b1b1f,#0d0d0f);
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
}
.illustration-frame img{
  width:100%;
  height:auto;
  display:block;
}

.checklist{list-style:none;padding:0;margin:18px 0 0;}
.checklist li{
  padding-left:26px;
  position:relative;
  margin-bottom:10px;
  color:var(--text);
}
.checklist li::before{
  content:"";
  position:absolute;left:0;top:7px;
  width:9px;height:9px;
  background:var(--gold);
  transform:rotate(45deg);
}

/* ---------- Icon-only art (consoles, prices) ---------- */
.tile-art.icon-only,
.icon-art{
  display:flex;
  align-items:center;
  justify-content:center;
  background:linear-gradient(160deg,#1b1b1f,#0d0d0f);
}
.icon-art{
  aspect-ratio:3/2;
  padding:30px;
}
.tile-art.icon-only svg,
.icon-art svg{transition:transform .3s ease;}
.tile:hover .tile-art.icon-only svg{transform:scale(1.06);}

/* ---------- Price tables ---------- */
.price-group{margin-bottom:34px;}
.price-group h3{
  font-size:1.05rem;
  color:var(--gold);
  letter-spacing:.06em;
  text-transform:uppercase;
  margin-bottom:12px;
  padding-bottom:8px;
  border-bottom:1px solid var(--line);
}
.price-table{
  width:100%;
  border-collapse:collapse;
}
.price-table td{
  padding:11px 0;
  border-bottom:1px solid rgba(42,42,46,.6);
  vertical-align:top;
  color:var(--text);
  font-size:.95rem;
}
.price-table tr:last-child td{border-bottom:none;}
.price-table td.price{
  text-align:right;
  white-space:nowrap;
  padding-left:18px;
  font-family:'Rajdhani',sans-serif;
  font-weight:700;
  font-size:1.05rem;
  color:var(--gold);
}
.price-table .note{
  display:block;
  font-size:.82rem;
  color:var(--text-dim);
  margin-top:3px;
}
.price-note{
  font-size:.88rem;
  border-left:2px solid var(--gold-dim);
  padding-left:16px;
  margin-top:26px;
}

/* ---------- FAQ accordion ---------- */
.faq-item{border-bottom:1px solid var(--line);padding:18px 0;}
.faq-item summary{
  cursor:pointer;
  font-family:'Rajdhani',sans-serif;
  font-weight:700;
  font-size:1.05rem;
  color:var(--text);
  list-style:none;
  display:flex;
  justify-content:space-between;
  align-items:center;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";
  color:var(--gold);
  font-size:1.4rem;
  font-weight:400;
  margin-left:12px;
  transition:transform .2s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-item summary:hover{color:var(--gold-bright);}
.faq-item p{margin-top:12px;}

/* ---------- Contact ---------- */
.contact-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
  gap:20px;
  margin-top:30px;
}
.contact-card{
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--bg-card);
  padding:22px;
}
.contact-card h3{font-size:1rem;color:var(--gold);margin-bottom:8px;}

/* ---------- CTA banner ---------- */
.cta-banner{
  border:1px solid var(--gold-dim);
  background:linear-gradient(120deg,rgba(212,175,55,.08),rgba(212,175,55,.02));
  border-radius:var(--radius);
  padding:34px 30px;
  display:flex;
  flex-wrap:wrap;
  gap:20px;
  align-items:center;
  justify-content:space-between;
}
.btn{
  display:inline-block;
  padding:12px 22px;
  border-radius:6px;
  background:var(--gold);
  color:#141414;
  font-family:'Rajdhani',sans-serif;
  font-weight:700;
  letter-spacing:.04em;
  text-transform:uppercase;
  font-size:.88rem;
  transition:background .2s ease, transform .2s ease;
}
.btn:hover{background:var(--gold-bright);transform:translateY(-2px);}
.btn.ghost{
  background:none;
  border:1px solid var(--gold);
  color:var(--gold);
}

footer.site-footer{
  padding:30px 0 40px;
  color:#5f5f66;
  font-size:.82rem;
  text-align:center;
}

/* ---------- Responsive: collapse sidebar ---------- */
@media (max-width:900px){
  .layout{flex-direction:column;}
  .sidebar{display:none;}
  .topbar{display:flex;}
  .sidebar.mobile-open{
    display:flex;
    position:fixed;
    inset:0 0 0 auto;
    width:78vw;
    max-width:300px;
    height:100vh;
    z-index:50;
    box-shadow:-10px 0 30px rgba(0,0,0,.5);
  }
  .sidebar-backdrop{
    display:none;
    position:fixed;inset:0;background:rgba(0,0,0,.55);z-index:45;
  }
  .sidebar-backdrop.show{display:block;}
}