/* =========================================================
   TR GROUP — core stylesheet
   Palette: navy #0B1220 / surface #121B2E / panel #182338
            gold #C9A227 / gold-light #E8C766 / steel #5B6472
            ink #EDEFF3
   Type: Space Grotesk (display) / Inter (body) / JetBrains Mono (data)
   ========================================================= */

:root{
  --navy-950:#070C15;
  --navy-900:#0B1220;
  --navy-800:#121B2E;
  --navy-700:#182338;
  --navy-600:#22304A;
  --gold:#C9A227;
  --gold-light:#E8C766;
  --steel:#5B6472;
  --steel-light:#8892A0;
  --ink:#EDEFF3;
  --ink-dim:#AEB6C2;
  --danger:#B4432E;
  --radius:14px;
}

body{ transition:background-color .3s ease, color .3s ease; }

*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  background:var(--navy-900);
  color:var(--ink);
  font-family:'Inter',ui-sans-serif,system-ui,sans-serif;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
.font-display{ font-family:'Space Grotesk',ui-sans-serif,sans-serif; }
.font-mono{ font-family:'JetBrains Mono',ui-monospace,monospace; }

@media (prefers-reduced-motion: reduce){
  *{ animation-duration:0.001ms !important; animation-iteration-count:1 !important; transition-duration:0.001ms !important; }
}

/* focus visibility */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible{
  outline:2px solid var(--gold-light);
  outline-offset:3px;
}

/* ---------- background texture: faint blueprint grid ---------- */
.grid-bg{
  background-image:
    linear-gradient(rgba(201,162,39,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(201,162,39,0.06) 1px, transparent 1px);
  background-size:44px 44px;
}
.grid-bg-fine{
  background-image:
    linear-gradient(rgba(237,239,243,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(237,239,243,0.035) 1px, transparent 1px);
  background-size:16px 16px;
}

/* ---------- neumorphic panel (soft-embossed, on navy) ---------- */
.panel-neu{
  background:linear-gradient(155deg, var(--navy-700), var(--navy-800));
  border-radius:var(--radius);
  box-shadow:
    8px 8px 20px rgba(0,0,0,0.45),
    -6px -6px 16px rgba(255,255,255,0.02),
    inset 0 1px 0 rgba(255,255,255,0.03);
  border:1px solid rgba(201,162,39,0.08);
}
.panel-neu-inset{
  background:var(--navy-900);
  border-radius:var(--radius);
  box-shadow:
    inset 6px 6px 14px rgba(0,0,0,0.55),
    inset -4px -4px 10px rgba(255,255,255,0.02);
  border:1px solid rgba(255,255,255,0.03);
}

/* ---------- skeuomorphic brushed-metal button ---------- */
.btn-metal{
  position:relative;
  display:inline-flex; align-items:center; gap:.5rem;
  padding:.85rem 1.6rem;
  font-family:'Space Grotesk',sans-serif;
  font-weight:600; letter-spacing:.02em;
  color:var(--navy-950);
  background:linear-gradient(180deg, var(--gold-light) 0%, var(--gold) 55%, #A9821A 100%);
  border-radius:10px;
  box-shadow:
    0 1px 0 rgba(255,255,255,0.5) inset,
    0 -2px 4px rgba(0,0,0,0.25) inset,
    0 6px 14px rgba(0,0,0,0.4);
  border:1px solid rgba(0,0,0,0.25);
  transition:transform .15s ease, box-shadow .15s ease;
}
.btn-metal:hover{ transform:translateY(-2px); box-shadow:0 1px 0 rgba(255,255,255,0.5) inset, 0 -2px 4px rgba(0,0,0,0.25) inset, 0 10px 20px rgba(0,0,0,0.45); }
.btn-metal:active{ transform:translateY(0); }

.btn-ghost{
  display:inline-flex; align-items:center; gap:.5rem;
  padding:.8rem 1.5rem;
  font-family:'Space Grotesk',sans-serif; font-weight:600; letter-spacing:.02em;
  color:var(--ink);
  background:rgba(255,255,255,0.02);
  border:1px solid rgba(237,239,243,0.18);
  border-radius:10px;
  transition:all .2s ease;
}
.btn-ghost:hover{ border-color:var(--gold-light); color:var(--gold-light); background:rgba(201,162,39,0.06); }

/* ---------- rivet corners (skeuomorphic panel detail) ---------- */
.rivets{ position:relative; }
.rivets::before,.rivets::after{
  content:''; position:absolute; width:6px; height:6px; border-radius:50%;
  background:radial-gradient(circle at 35% 30%, #F0D98C, var(--gold) 60%, #7A5E12 100%);
  box-shadow:0 1px 2px rgba(0,0,0,0.6);
  top:10px; left:10px;
}
.rivets::after{ left:auto; right:10px; }
.rivets .rivet-b1,.rivets .rivet-b2{
  position:absolute; width:6px; height:6px; border-radius:50%;
  background:radial-gradient(circle at 35% 30%, #F0D98C, var(--gold) 60%, #7A5E12 100%);
  box-shadow:0 1px 2px rgba(0,0,0,0.6);
  bottom:10px; left:10px;
}
.rivets .rivet-b2{ left:auto; right:10px; }

/* ---------- gold hairline divider ---------- */
.hr-gold{ height:1px; background:linear-gradient(90deg, transparent, rgba(201,162,39,0.55), transparent); border:0; }

/* ---------- eyebrow / status label ---------- */
.eyebrow{
  font-family:'JetBrains Mono',monospace;
  font-size:.72rem; letter-spacing:.16em; text-transform:uppercase;
  color:var(--gold-light);
  display:inline-flex; align-items:center; gap:.5rem;
}
.eyebrow::before{
  content:''; width:6px; height:6px; border-radius:50%;
  background:var(--gold-light); box-shadow:0 0 8px var(--gold-light);
}

/* ---------- radar sweep (signature motif) ---------- */
.radar{
  position:relative; border-radius:50%;
  border:1px solid rgba(201,162,39,0.25);
}
.radar::before{
  content:''; position:absolute; inset:0; border-radius:50%;
  background:conic-gradient(from 0deg, rgba(201,162,39,0.55), transparent 28%, transparent 100%);
  animation:sweep 4.5s linear infinite;
  mix-blend-mode:screen;
}
.radar::after{
  content:''; position:absolute; inset:14%; border-radius:50%; border:1px solid rgba(201,162,39,0.18);
}
@keyframes sweep{ to{ transform:rotate(360deg); } }

/* ---------- hex nav dial (hero sector selector) ---------- */
.hex{
  clip-path:polygon(25% 6%, 75% 6%, 100% 50%, 75% 94%, 25% 94%, 0% 50%);
}

/* ---------- scanline overlay for images (skeuomorphic HUD feel) ---------- */
.scan-frame{ position:relative; overflow:hidden; border-radius:var(--radius); }
.scan-frame::after{
  content:''; position:absolute; inset:0; pointer-events:none;
  background:repeating-linear-gradient(rgba(11,18,32,0) 0px, rgba(11,18,32,0) 3px, rgba(11,18,32,0.12) 4px);
  mix-blend-mode:multiply;
}
.scan-frame::before{
  content:''; position:absolute; inset:0; pointer-events:none; border-radius:inherit;
  box-shadow:inset 0 0 0 1px rgba(201,162,39,0.35), inset 0 0 30px rgba(0,0,0,0.5);
}

/* ---------- corner bracket frame ---------- */
.bracket{ position:relative; }
.bracket::before,.bracket::after{
  content:''; position:absolute; width:18px; height:18px; border-color:var(--gold); border-style:solid; opacity:.7;
}
.bracket::before{ top:-1px; left:-1px; border-width:2px 0 0 2px; }
.bracket::after{ bottom:-1px; right:-1px; border-width:0 2px 2px 0; }

/* ---------- nav ---------- */
.site-nav{
  backdrop-filter:blur(14px) saturate(140%);
  background:rgba(7,12,21,0.72);
  border-bottom:1px solid rgba(201,162,39,0.14);
}

/* ---------- lang toggle ---------- */
.lang-toggle{
  font-family:'JetBrains Mono',monospace; font-size:.72rem; letter-spacing:.08em;
  display:inline-flex; border:1px solid rgba(237,239,243,0.18); border-radius:8px; overflow:hidden;
}
.lang-toggle button{ padding:.4rem .65rem; color:var(--ink-dim); background:transparent; }
.lang-toggle button.active{ background:var(--gold); color:var(--navy-950); font-weight:700; }

/* ---------- language visibility ---------- */
[data-i18n-tr]{ display:none; }
html[lang="tr"] [data-i18n-en]{ display:none; }
html[lang="tr"] [data-i18n-tr]{ display:inline; }
html[lang="tr"] [data-i18n-tr].block-tr{ display:block; }

/* ---------- service card hover lift ---------- */
.svc-card{ transition:transform .35s cubic-bezier(.2,.8,.2,1), box-shadow .35s; }
.svc-card:hover{ transform:translateY(-6px); }

/* ---------- slider ---------- */
.slide{ position:absolute; inset:0; opacity:0; visibility:hidden; }
.slide.is-active{ opacity:1; visibility:visible; position:relative; }

/* ---------- form ---------- */
.field{
  width:100%; background:var(--navy-900);
  border:1px solid rgba(237,239,243,0.14);
  border-radius:10px; padding:.85rem 1rem; color:var(--ink);
  box-shadow:inset 3px 3px 8px rgba(0,0,0,0.5), inset -2px -2px 6px rgba(255,255,255,0.02);
}
.field:focus{ border-color:var(--gold); }
.field::placeholder{ color:var(--steel-light); }

/* ---------- scrollbar ---------- */
::-webkit-scrollbar{ width:10px; }
::-webkit-scrollbar-track{ background:var(--navy-900); }
::-webkit-scrollbar-thumb{ background:var(--navy-600); border-radius:6px; }

/* ---------- misc ---------- */
.text-gold{ color:var(--gold-light); }
.bg-navy-800{ background:var(--navy-800); }
.bg-navy-700{ background:var(--navy-700); }
.marquee-track{ display:flex; width:max-content; animation:marquee 28s linear infinite; }
@keyframes marquee{ from{ transform:translateX(0);} to{ transform:translateX(-50%);} }

/* ---------- product gallery ---------- */
.gallery-thumb{ border-radius:8px; border:1px solid rgba(255,255,255,0.08); transition:opacity .2s, border-color .2s; }
.gallery-thumb:hover{ opacity:1 !important; border-color:var(--gold); }
.gallery-thumb.active{ opacity:1; border-color:var(--gold-light); }

/* ---------- content motifs (per-sector hero decoration) ---------- */
.motif{ position:absolute; pointer-events:none; opacity:.22; }
.motif svg{ width:100%; height:100%; overflow:visible; }

/* ---------- hero visual scenes (replace the old hero photo) ---------- */
.hero-radar-sweep{ animation:hero-radar-spin 4.5s linear infinite; }
@keyframes hero-radar-spin{ to{ transform:rotate(360deg); } }

/* ---------- logo (shield draw) ---------- */
.logo-shield .shield-text{ opacity:0; }
.logo-shield.logo-static .shield-text{ opacity:1; }

/* ---------- bento grids ---------- */
.bento{ display:grid; grid-template-columns:repeat(3,1fr); gap:16px; }
.bento .b-wide{ grid-column:span 2; }
.bento .b-tall{ grid-row:span 2; }
@media (max-width:820px){ .bento{ grid-template-columns:1fr 1fr; } .bento .b-wide{ grid-column:span 2; } }
@media (max-width:560px){ .bento{ grid-template-columns:1fr; } .bento .b-wide{ grid-column:span 1; } }

.bento-even{ display:grid; grid-template-columns:repeat(4,1fr); gap:14px; }
@media (max-width:820px){ .bento-even{ grid-template-columns:repeat(2,1fr); } }
@media (max-width:480px){ .bento-even{ grid-template-columns:1fr; } }

.bento-cell{ transition:transform .3s cubic-bezier(.2,.8,.2,1); }
.bento-cell:hover{ transform:translateY(-4px); }

.brand-tag{
  display:inline-flex; align-items:center; gap:6px;
  font-family:'JetBrains Mono',monospace; font-size:10px; letter-spacing:.06em;
  color:var(--gold); background:rgba(201,162,39,0.1); border:1px solid rgba(201,162,39,0.25);
  border-radius:20px; padding:3px 10px; text-transform:uppercase;
}

/* ---------- accordion (FAQ) ---------- */
.acc-item{ border-bottom:1px solid rgba(255,255,255,0.06); }
.acc-trigger{
  width:100%; text-align:left; display:flex; align-items:center; justify-content:space-between; gap:16px;
  padding:18px 4px; background:none; border:0; cursor:pointer;
  font-family:'Space Grotesk',sans-serif; font-weight:600; font-size:15px; color:var(--ink);
}
.acc-trigger:hover{ color:var(--gold-light); }
.acc-icon{ flex-shrink:0; width:20px; height:20px; position:relative; }
.acc-icon::before, .acc-icon::after{
  content:''; position:absolute; background:var(--gold-light); border-radius:2px; top:50%; left:50%;
  transform:translate(-50%,-50%);
}
.acc-icon::before{ width:12px; height:2px; }
.acc-icon::after{ width:2px; height:12px; transition:transform .25s ease; }
.acc-item.open .acc-icon::after{ transform:translate(-50%,-50%) rotate(90deg) scaleY(0); }
.acc-panel{ max-height:0; overflow:hidden; transition:max-height .35s ease; }
.acc-panel-inner{ padding:0 4px 18px; color:var(--ink-dim); font-size:14px; line-height:1.7; }