/* ==========================================================================
   ESCO-UAV — Savaşan İHA · Platform B
   Tasarım dili: "Ölçülmüş" — teknik, koyu, hassas. Enstrüman estetiği.
   ========================================================================== */

:root{
  --bg:        #070a0f;
  --bg-2:      #0b0f16;
  --surface:   #0e131c;
  --surface-2: #121826;
  --line:      #1c2433;
  --line-2:    #2a3547;
  --text:      #e8edf5;
  --text-dim:  #97a4b8;
  --text-mute: #64718a;
  --accent:    #4fd1e0;
  --accent-dim:#1e4d55;
  --amber:     #f2a63b;
  --green:     #4ade80;
  --red:       #f2555a;
  --violet:    #a78bfa;

  --mono: ui-monospace,"SF Mono",SFMono-Regular,"JetBrains Mono","Roboto Mono",Menlo,Consolas,monospace;
  --sans: "Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;

  --maxw: 1240px;
  --pad: clamp(20px,4vw,48px);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:var(--sans);font-size:16px;line-height:1.65;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{margin:0;line-height:1.15;letter-spacing:-0.02em;font-weight:650}
p{margin:0}

/* ---------- yardımcılar ---------- */
.wrap{max-width:var(--maxw);margin:0 auto;padding-inline:var(--pad)}
.mono{font-family:var(--mono)}
.dim{color:var(--text-dim)}
.mute{color:var(--text-mute)}

.eyebrow{
  font-family:var(--mono);font-size:11px;letter-spacing:.22em;text-transform:uppercase;
  color:var(--accent);display:flex;align-items:center;gap:10px;
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--accent);opacity:.7}

.section{padding:clamp(72px,10vw,132px) 0;position:relative}
.section + .section{border-top:1px solid var(--line)}
.sec-head{max-width:760px;margin-bottom:clamp(36px,5vw,60px)}
.sec-head h2{font-size:clamp(28px,4.2vw,44px);margin:16px 0 14px}
.sec-head p{color:var(--text-dim);font-size:clamp(15px,1.6vw,17.5px)}

/* ---------- arka plan ızgarası ---------- */
.grid-bg{
  position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:
    linear-gradient(to right,rgba(255,255,255,.028) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(255,255,255,.028) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(ellipse 100% 65% at 50% 0%,#000 30%,transparent 78%);
  -webkit-mask-image:radial-gradient(ellipse 100% 65% at 50% 0%,#000 30%,transparent 78%);
}
main,header,footer{position:relative;z-index:1}

/* ---------- nav ---------- */
.nav{
  position:sticky;top:0;z-index:60;
  background:rgba(7,10,15,.78);backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav-in{display:flex;align-items:center;gap:28px;height:62px}
.brand{display:flex;align-items:baseline;gap:9px;font-family:var(--mono);font-weight:700;
  letter-spacing:.16em;font-size:15px}
.brand .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);
  box-shadow:0 0 10px var(--accent);align-self:center}
.brand small{font-size:10px;letter-spacing:.18em;color:var(--text-mute);font-weight:500}
.nav-links{display:flex;gap:26px;margin-left:auto;font-size:13.5px}
.nav-links a{color:var(--text-dim);transition:color .18s}
.nav-links a:hover{color:var(--text)}
.nav-cta{
  font-family:var(--mono);font-size:11.5px;letter-spacing:.12em;text-transform:uppercase;
  border:1px solid var(--line-2);padding:8px 15px;border-radius:4px;color:var(--text-dim);
  transition:.2s;
}
.nav-cta:hover{border-color:var(--accent);color:var(--accent)}
@media(max-width:860px){.nav-links{display:none}}

/* ---------- hero ---------- */
.hero{padding-top:clamp(40px,6vw,64px);padding-bottom:0;overflow:hidden}
.hero-head{max-width:820px}
.hero h1{
  font-size:clamp(38px,7.4vw,84px);font-weight:700;letter-spacing:-0.035em;
  margin:18px 0 0;line-height:1.02;
}
.hero h1 .thin{font-weight:300;color:var(--text-dim);display:block;font-size:.5em;
  letter-spacing:-0.01em;margin-top:12px}
.hero h1 .pre{font-weight:300;color:var(--text-mute);font-size:.46em;display:block;
  letter-spacing:.18em;margin-bottom:6px;font-family:var(--mono)}
.hero-lede{color:var(--text-dim);font-size:clamp(16px,2vw,19px);max-width:640px;margin-top:22px}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:26px}
.tag{
  font-family:var(--mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;
  border:1px solid var(--line-2);border-radius:3px;padding:6px 11px;color:var(--text-dim);
  background:var(--surface);
}
.tag.on{border-color:var(--accent-dim);color:var(--accent);background:rgba(79,209,224,.06)}

/* ---------- 3D görüntüleyici ---------- */
.viewer-shell{margin-top:clamp(30px,4.5vw,48px);position:relative}
.viewer{
  position:relative;width:100%;height:clamp(460px,82vh,900px);
  border:1px solid var(--line);border-radius:10px;overflow:hidden;
  background:
    radial-gradient(ellipse 70% 55% at 50% 42%,rgba(79,209,224,.075),transparent 70%),
    linear-gradient(180deg,var(--bg-2),#05070b);
  cursor:grab;touch-action:none;
}
.viewer:active{cursor:grabbing}
.viewer canvas{display:block;width:100%;height:100%}
.viewer-corner{position:absolute;width:16px;height:16px;border-color:var(--line-2);
  border-style:solid;border-width:0;pointer-events:none;opacity:.9}
.vc-tl{top:12px;left:12px;border-top-width:1px;border-left-width:1px}
.vc-tr{top:12px;right:12px;border-top-width:1px;border-right-width:1px}
.vc-bl{bottom:12px;left:12px;border-bottom-width:1px;border-left-width:1px}
.vc-br{bottom:12px;right:12px;border-bottom-width:1px;border-right-width:1px}

.viewer-hud{
  position:absolute;top:16px;left:18px;font-family:var(--mono);font-size:10.5px;
  letter-spacing:.12em;color:var(--text-mute);pointer-events:none;line-height:1.9;
  text-transform:uppercase;
}
.viewer-hud b{color:var(--accent);font-weight:500}
.viewer-hint{
  position:absolute;bottom:16px;left:50%;transform:translateX(-50%);
  font-family:var(--mono);font-size:10.5px;letter-spacing:.14em;color:var(--text-mute);
  text-transform:uppercase;pointer-events:none;transition:opacity .5s;
  display:flex;align-items:center;gap:9px;
}
.viewer-hint.gone{opacity:0}
.viewer-hint svg{opacity:.7}

.viewer-load{
  position:absolute;inset:0;display:grid;place-content:center;gap:14px;justify-items:center;
  background:var(--bg-2);transition:opacity .55s;font-family:var(--mono);font-size:11px;
  letter-spacing:.16em;color:var(--text-mute);text-transform:uppercase;z-index:3;
}
.viewer-load.gone{opacity:0;pointer-events:none}
.load-bar{width:180px;height:2px;background:var(--line);overflow:hidden;border-radius:2px}
.load-bar i{display:block;height:100%;width:0;background:var(--accent);transition:width .25s}

.viewer-tools{
  display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;align-items:center;
}
.vtools-note{font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--text-mute);margin-left:auto}
@media(max-width:720px){.vtools-note{display:none}}
.vbtn{
  font-family:var(--mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;
  background:var(--surface);border:1px solid var(--line-2);color:var(--text-dim);
  padding:9px 14px;border-radius:4px;cursor:pointer;transition:.18s;
}
.vbtn:hover{color:var(--text);border-color:var(--text-mute)}
.vbtn.on{background:rgba(79,209,224,.1);border-color:var(--accent);color:var(--accent)}
.vbtn-sep{width:1px;height:20px;background:var(--line-2);margin-inline:6px}

/* ---------- ölçü şeridi ---------- */
.specstrip{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));
  border:1px solid var(--line);border-top:0;border-radius:0 0 10px 10px;overflow:hidden;
  background:var(--surface);
}
.viewer{border-radius:10px 10px 0 0}
.spec{padding:20px 22px;border-right:1px solid var(--line)}
.spec:last-child{border-right:0}
.spec-k{font-family:var(--mono);font-size:10px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--text-mute)}
.spec-v{font-family:var(--mono);font-size:clamp(20px,2.6vw,27px);font-weight:600;
  margin-top:7px;letter-spacing:-0.02em}
.spec-v span{font-size:.5em;color:var(--text-mute);font-weight:400;margin-left:3px}
@media(max-width:640px){.spec{border-right:0;border-bottom:1px solid var(--line)}}

/* ---------- teknik çizim ---------- */
.drawing{
  border:1px solid var(--line);border-radius:10px;background:var(--surface);
  padding:clamp(18px,3vw,32px);overflow-x:auto;
}
.drawing svg{display:block;min-width:640px;width:100%;height:auto}
.dwg-cap{font-family:var(--mono);font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--text-mute);margin-bottom:18px;display:flex;justify-content:space-between;gap:16px;
  flex-wrap:wrap}

/* ---------- kartlar / tablolar ---------- */
.cards{display:grid;gap:14px;grid-template-columns:repeat(auto-fit,minmax(272px,1fr))}
.card{
  border:1px solid var(--line);border-radius:9px;background:var(--surface);
  padding:24px;transition:border-color .2s,transform .2s;
}
.card:hover{border-color:var(--line-2)}
.card h3{font-size:17px;margin-bottom:8px;display:flex;align-items:center;gap:10px}
.card p{color:var(--text-dim);font-size:14.5px}
.card-ix{font-family:var(--mono);font-size:10px;color:var(--text-mute);letter-spacing:.16em;
  display:block;margin-bottom:12px}

.hw{display:grid;gap:0;border:1px solid var(--line);border-radius:9px;overflow:hidden}
.hw-row{
  display:grid;grid-template-columns:1.4fr 1fr 1fr auto;gap:18px;align-items:center;
  padding:18px 22px;border-bottom:1px solid var(--line);background:var(--surface);
}
.hw-row:last-child{border-bottom:0}
.hw-row:hover{background:var(--surface-2)}
.hw-name{font-weight:600;font-size:15px}
.hw-name small{display:block;font-weight:400;color:var(--text-mute);font-size:12.5px;
  margin-top:3px;font-family:var(--mono)}
.hw-val{font-family:var(--mono);font-size:13px;color:var(--text-dim)}
.hw-val b{color:var(--text);font-weight:500}
@media(max-width:820px){
  .hw-row{grid-template-columns:1fr 1fr;gap:10px}
  .hw-row .hw-name{grid-column:1/-1}
}

/* ---------- rozetler ---------- */
.badge{
  font-family:var(--mono);font-size:10px;letter-spacing:.1em;text-transform:uppercase;
  padding:5px 9px;border-radius:3px;border:1px solid;white-space:nowrap;
}
.b-ok{color:var(--green);border-color:rgba(74,222,128,.35);background:rgba(74,222,128,.08)}
.b-wait{color:var(--amber);border-color:rgba(242,166,59,.35);background:rgba(242,166,59,.08)}
.b-block{color:var(--red);border-color:rgba(242,85,90,.35);background:rgba(242,85,90,.08)}
.b-info{color:var(--accent);border-color:var(--accent-dim);background:rgba(79,209,224,.08)}
.b-mute{color:var(--text-mute);border-color:var(--line-2);background:transparent}

/* ---------- otorite barı ---------- */
.auth{display:grid;gap:11px;margin-top:8px}
.auth-row{display:grid;grid-template-columns:220px 1fr 54px;gap:16px;align-items:center;font-size:13.5px}
.auth-k{font-family:var(--mono);font-size:11.5px;letter-spacing:.06em;color:var(--text-dim)}
.auth-bar{height:7px;border-radius:4px;background:var(--line);overflow:hidden}
.auth-bar i{display:block;height:100%;border-radius:4px;transition:width 1.1s cubic-bezier(.2,.8,.2,1)}
.auth-n{font-family:var(--mono);font-size:13px;text-align:right;color:var(--text-dim)}
@media(max-width:640px){.auth-row{grid-template-columns:1fr 46px;gap:6px}
  .auth-bar{grid-column:1/-1}}

/* ---------- yazılım ızgarası ---------- */
.stack{display:grid;gap:1px;background:var(--line);border:1px solid var(--line);
  border-radius:9px;overflow:hidden;grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.stack-i{background:var(--surface);padding:22px;transition:background .18s}
.stack-i:hover{background:var(--surface-2)}
.stack-i h4{font-family:var(--mono);font-size:12.5px;letter-spacing:.08em;color:var(--accent);
  margin-bottom:9px}
.stack-i p{font-size:13.5px;color:var(--text-dim)}

/* ---------- zaman çizelgesi ---------- */
.tl{display:grid;gap:0;position:relative;margin-top:8px}
.tl::before{content:"";position:absolute;left:7px;top:10px;bottom:10px;width:1px;background:var(--line)}
.tl-i{display:grid;grid-template-columns:auto 1fr;gap:22px;padding:14px 0;align-items:start}
.tl-dot{width:15px;height:15px;border-radius:50%;border:1px solid var(--line-2);
  background:var(--bg);margin-top:5px;position:relative;z-index:1}
.tl-i.done .tl-dot{border-color:var(--green);background:var(--green);box-shadow:0 0 0 3px rgba(74,222,128,.13)}
.tl-i.now .tl-dot{border-color:var(--accent);background:var(--accent);
  box-shadow:0 0 0 4px rgba(79,209,224,.16)}
.tl-h{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.tl-h b{font-size:15.5px;font-weight:600}
.tl-h span{font-family:var(--mono);font-size:10.5px;color:var(--text-mute);letter-spacing:.12em}
.tl-i p{color:var(--text-dim);font-size:14px;margin-top:5px}

/* ---------- galeri ---------- */
.gal{display:grid;gap:14px;grid-template-columns:repeat(auto-fit,minmax(290px,1fr))}
.gal figure{margin:0;border:1px solid var(--line);border-radius:9px;overflow:hidden;
  background:var(--surface)}
.gal img{aspect-ratio:16/10;object-fit:cover;object-position:center;transition:transform .45s}
.gal figure:hover img{transform:scale(1.03)}
.gal figcaption{padding:14px 18px;font-family:var(--mono);font-size:11px;letter-spacing:.08em;
  color:var(--text-mute);border-top:1px solid var(--line)}

/* ---------- uyarı kutusu ---------- */
.note{
  border:1px solid var(--line-2);border-left:2px solid var(--amber);
  background:linear-gradient(90deg,rgba(242,166,59,.05),transparent 55%);
  border-radius:0 8px 8px 0;padding:20px 24px;font-size:14.5px;color:var(--text-dim);
}
.note b{color:var(--amber);font-family:var(--mono);font-size:11px;letter-spacing:.14em;
  text-transform:uppercase;display:block;margin-bottom:7px}

/* ---------- footer ---------- */
.foot{border-top:1px solid var(--line);padding:56px 0 42px;background:var(--bg-2)}
.foot-in{display:flex;gap:32px;flex-wrap:wrap;justify-content:space-between;align-items:flex-start}
.foot p{color:var(--text-mute);font-size:13.5px;max-width:420px;margin-top:12px}
.foot-meta{font-family:var(--mono);font-size:11px;color:var(--text-mute);letter-spacing:.1em;
  line-height:2.1;text-align:right}
@media(max-width:640px){.foot-meta{text-align:left}}

/* ---------- animasyon ---------- */
.rv{opacity:0;transform:translateY(18px);transition:opacity .75s cubic-bezier(.2,.8,.2,1),
  transform .75s cubic-bezier(.2,.8,.2,1)}
.rv.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  .rv{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}