/* ───────── LEDECH · Arena sahnesi + ana sayfa bölümleri ───────── */
.stage{height:900vh}
.viewport{--gx:18vw;background:var(--ink-900)}
.bg-glow{background:radial-gradient(50vmax 40vmax at calc(50% + var(--gx)) 40%,rgba(41,117,163,.26),transparent 62%),
  radial-gradient(30vmax 22vmax at calc(50% + var(--gx)) 78%,rgba(220,174,46,.10),transparent 60%)}
/* tribün ışıkları */
.beams{position:absolute;inset:0;z-index:-2;pointer-events:none;opacity:.9;
  background:conic-gradient(from 168deg at 70% -12%,transparent 0 6%,rgba(96,159,194,.13) 9%,transparent 14% 100%),
             conic-gradient(from 188deg at 86% -12%,transparent 0 4%,rgba(220,174,46,.08) 7%,transparent 11% 100%),
             conic-gradient(from 150deg at 52% -12%,transparent 0 4%,rgba(96,159,194,.09) 7%,transparent 11% 100%)}

.arena{position:absolute;z-index:2;right:var(--gutter);top:50%;transform:translateY(-47%);width:min(58vw,920px)}
.arena::before,.arena::after{content:"";position:absolute;top:-70vh;height:70vh;width:2px;background:linear-gradient(180deg,transparent,rgba(96,159,194,.55));left:14%}
.arena::after{left:auto;right:14%}
.board{position:relative;border-radius:14px;padding:clamp(9px,1.1vw,16px);
  background:linear-gradient(155deg,#243749,#0b141e 38%,#131f2c);
  box-shadow:0 50px 90px -30px rgba(0,0,0,.85),0 0 0 1px rgba(96,159,194,.28),inset 0 2px 0 rgba(255,255,255,.1),inset 0 -2px 0 rgba(0,0,0,.5)}
.board i{position:absolute;width:7px;height:7px;border-radius:50%;background:radial-gradient(circle at 35% 30%,#9db6c8,#33495b);box-shadow:0 1px 2px rgba(0,0,0,.6)}
.board i:nth-child(1){left:6px;top:6px}.board i:nth-child(2){right:6px;top:6px}.board i:nth-child(3){left:6px;bottom:6px}.board i:nth-child(4){right:6px;bottom:6px}
.led-wrap{position:relative;border-radius:6px;overflow:hidden;background:#050c15;aspect-ratio:140/64;box-shadow:inset 0 0 40px rgba(0,0,0,.75)}
.led-wrap canvas{position:absolute;inset:0;width:100%;height:100%;display:block}
#led-glow{filter:blur(10px) saturate(1.5);mix-blend-mode:screen;opacity:.9;pointer-events:none}
.led-wrap::after{content:"";position:absolute;inset:0;background:linear-gradient(115deg,rgba(255,255,255,.07),transparent 34%);pointer-events:none}
.board-meta{display:flex;justify-content:space-between;gap:16px;margin-top:16px;padding:0 4px;font:600 11px var(--f-mono);letter-spacing:.16em;text-transform:uppercase;color:var(--steel-300)}
.board-meta b{color:var(--sun);font-weight:600}
.floorglow{position:absolute;left:8%;right:8%;bottom:-46px;height:60px;background:radial-gradient(ellipse at 50% 0,rgba(41,117,163,.35),transparent 70%);filter:blur(14px);pointer-events:none}

.panel.hero h1{font-size:clamp(30px,4.1vw,66px);line-height:1.04}
.panel h2{font-size:clamp(34px,4vw,62px)}
.panel .lead{max-width:46ch}
.kicker .tri{border-bottom-color:var(--sun)}

/* ───────── bölümler ───────── */
.dv-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:20px}
.dv{grid-column:span 2;position:relative;display:flex;flex-direction:column;border-radius:10px;overflow:hidden;background:#fff;border:1.5px solid var(--paper-ink);transition:transform .5s var(--ease),box-shadow .35s}
.dv:nth-child(-n+2){grid-column:span 3}
.dv:hover{transform:translateY(-6px);box-shadow:0 30px 50px -28px rgba(6,17,29,.55)}
.dv-img{aspect-ratio:16/9;background:#dfe7ee;overflow:hidden;position:relative}
.dv:nth-child(-n+2) .dv-img{aspect-ratio:2/1}
.dv-img img{width:100%;height:100%;object-fit:cover;transition:transform .8s var(--ease)}
.dv:hover .dv-img img{transform:scale(1.06)}
.dv-img::after{content:"";position:absolute;left:0;bottom:0;height:4px;width:0;background:var(--sun);transition:width .5s var(--ease)}
.dv:hover .dv-img::after{width:100%}
.dv-n{position:absolute;left:14px;top:12px;z-index:2;font:700 13px var(--f-mono);letter-spacing:.14em;color:var(--sun-ink);background:var(--sun);padding:5px 9px;border-radius:5px}
.dv-b{padding:22px 24px 26px;display:flex;flex-direction:column;gap:10px;flex:1}
.dv h3{font:700 clamp(21px,1.9vw,28px)/1.1 var(--f-display);letter-spacing:.01em;color:var(--paper-ink);text-transform:uppercase}
.dv p{font-size:14.5px;line-height:1.65;color:var(--paper-dim)}
.dv .more{margin-top:auto;padding-top:8px;color:var(--steel)}

.vals{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:1px solid rgba(96,159,194,.25)}
.val{padding:30px 28px 34px 0;border-bottom:1px solid rgba(96,159,194,.2);position:relative}
.val:not(:nth-child(3n+1)){padding-left:28px;border-left:1px solid rgba(96,159,194,.2)}
.val-n{font:700 44px/1 var(--f-display);color:transparent;-webkit-text-stroke:1.3px var(--steel);letter-spacing:.02em}
.val h3{font:700 22px/1.2 var(--f-display);color:#fff;margin:14px 0 10px;letter-spacing:.01em}
.val p{font-size:15px;color:var(--txt-dim);line-height:1.7;max-width:38ch}
.global{margin-top:clamp(36px,5vw,64px);display:grid;grid-template-columns:1fr auto;gap:clamp(24px,4vw,56px);align-items:center;padding:clamp(26px,3.4vw,46px);border:1px solid rgba(220,174,46,.4);border-radius:12px;background:linear-gradient(120deg,rgba(220,174,46,.10),rgba(41,117,163,.08));position:relative;overflow:hidden}
.global::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(220,174,46,.22) 1px,transparent 1.4px);background-size:10px 10px;-webkit-mask-image:linear-gradient(90deg,transparent 40%,#000);mask-image:linear-gradient(90deg,transparent 40%,#000);pointer-events:none}
.global h3{font:700 clamp(24px,2.6vw,38px)/1.1 var(--f-display);color:var(--sun);text-transform:uppercase;margin-bottom:12px;position:relative}
.global p{font-size:clamp(15px,1.2vw,18px);color:var(--txt);line-height:1.7;max-width:64ch;position:relative}

.partners{display:flex;flex-wrap:wrap;gap:clamp(24px,5vw,72px);align-items:center;justify-content:center;margin-top:12px}
.partners a,.partners span{display:grid;place-items:center;height:78px;padding:0 6px;opacity:.9;transition:opacity .25s,transform .35s var(--ease);filter:grayscale(.15)}
.partners img{max-height:64px;width:auto;object-fit:contain}
.partners a:hover{opacity:1;transform:translateY(-3px);filter:none}

.certs.led .cert{border-color:var(--steel)}

@media (max-width:1100px){.vals{grid-template-columns:1fr 1fr}.val:not(:nth-child(3n+1)){padding-left:0;border-left:0}.val:nth-child(2n){padding-left:28px;border-left:1px solid rgba(96,159,194,.2)}}
@media (max-width:900px){
  .arena{position:absolute;left:18px;right:18px;top:11vh;width:auto;transform:none}
  .arena::before,.arena::after{display:none}
  .board-meta{font-size:10px}
  .dv-grid{grid-template-columns:1fr 1fr}.dv,.dv:nth-child(-n+2){grid-column:span 2}
  .dv:nth-child(-n+2) .dv-img{aspect-ratio:16/9}
  .global{grid-template-columns:1fr}
}
@media (max-width:620px){.vals{grid-template-columns:1fr}.val,.val:nth-child(2n){padding-left:0!important;border-left:0!important}.dv-grid{grid-template-columns:1fr}.dv,.dv:nth-child(-n+2){grid-column:auto}}
@media (max-width:820px){.panel h2{font-size:clamp(28px,8vw,40px)}}

/* koyu zeminde belge kartları */
.sec.dark .dc-t{color:#fff}
.sec.dark .dc-cover{border-color:rgba(96,159,194,.5);box-shadow:0 18px 30px -18px rgba(0,0,0,.7)}
.sec.dark .dc-cover::after{background:linear-gradient(225deg,var(--ink-900) 50%,#cfd8e0 50%)}
#sertifika .dg{grid-template-columns:repeat(auto-fill,minmax(170px,1fr))}