/* ==========================================================================
   Bilişim Connect 2026 — tasarım sistemi
   ========================================================================== */
:root{
  --bg:#050b1a;--bg-2:#0a1428;--bg-3:#0f1d3a;--ink:#f3f6ff;--mute:#9fb0d0;--line:rgba(255,255,255,.1);
  --sea:#19c6d4;--sea-2:#3fa9ff;--gold:#f2c14e;--gold-2:#ffd982;--warn:#ff9f43;
  --glass:rgba(255,255,255,.05);--radius:22px;
  --font-body:Inter,system-ui,-apple-system,"Segoe UI",sans-serif;--font-head:Sora,Inter,system-ui,sans-serif;
  --header-h:76px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font-body);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
svg{fill:none;stroke:currentColor;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}
::selection{background:rgba(25,198,212,.35);color:#fff}
.container{width:min(1200px,100% - 48px);margin-inline:auto}
@media (max-width:640px){.container{width:min(1200px,100% - 32px)}}

/* progress bar */
.progress{position:fixed;left:0;top:0;height:3px;width:100%;z-index:1000;pointer-events:none}
.progress span{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--sea),var(--gold));box-shadow:0 0 12px rgba(25,198,212,.7)}

/* ---------- header ---------- */
.header{position:fixed;inset:0 0 auto 0;z-index:900;height:var(--header-h);transition:background .35s,box-shadow .35s,border-color .35s;border-bottom:1px solid transparent}
.header.is-scrolled{background:rgba(5,11,26,.72);backdrop-filter:blur(18px) saturate(1.4);-webkit-backdrop-filter:blur(18px) saturate(1.4);border-color:var(--line);box-shadow:0 10px 40px -20px rgba(0,0,0,.8)}
.header__in{height:100%;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;align-items:center;gap:12px}
.brand__mark{display:grid;place-items:center;width:44px;height:44px;border-radius:13px;background:linear-gradient(135deg,rgba(25,198,212,.28),rgba(63,169,255,.12));border:1px solid rgba(25,198,212,.45);box-shadow:0 10px 24px -12px rgba(25,198,212,.8),inset 0 1px 0 rgba(255,255,255,.15);flex:none}
.brand__mark svg{width:26px;height:26px;stroke:#9ff0f7;stroke-width:1.8;fill:none}
.brand__mark svg circle:first-child{fill:url(#brandCore);fill:#19c6d4;stroke:none}
.brand__text{display:flex;flex-direction:column;line-height:1.1}
.brand__text b{font:800 17px/1.1 var(--font-head);letter-spacing:-.01em;text-transform:uppercase;color:#fff}
.brand__text b em{font-style:normal;background:linear-gradient(90deg,#7fe6ef,#3fa9ff 55%,var(--gold-2));-webkit-background-clip:text;background-clip:text;color:transparent}
.brand__text small{font-size:10.5px;color:var(--gold);letter-spacing:.22em;text-transform:uppercase;margin-top:3px;font-weight:600}
.nav{display:flex;align-items:center;gap:6px}
.nav a{padding:10px 14px;border-radius:12px;font:500 14px var(--font-body);color:#dfe7ff;position:relative;transition:color .25s,background .25s}
.nav a:not(.btn)::after{content:"";position:absolute;left:14px;right:14px;bottom:6px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--sea),var(--gold));transform:scaleX(0);transform-origin:left;transition:transform .3s}
.nav a:not(.btn):hover::after,.nav a.is-active::after{transform:scaleX(1)}
.nav .btn{margin-left:8px}
.burger{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;background:var(--glass);cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:5px}
.burger span{width:18px;height:2px;background:#fff;border-radius:2px;transition:transform .3s,opacity .3s}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
@media (max-width:900px){
  .burger{display:flex}
  .brand__text b{font-size:15px}
  .nav{position:fixed;inset:var(--header-h) 0 auto 0;flex-direction:column;align-items:stretch;gap:4px;padding:16px;background:rgba(5,11,26,.96);backdrop-filter:blur(20px);border-bottom:1px solid var(--line);transform:translateY(-12px);opacity:0;pointer-events:none;transition:opacity .3s,transform .3s}
  .nav.is-open{opacity:1;transform:none;pointer-events:auto}
  .nav a{padding:14px 16px;font-size:16px}
  .nav .btn{margin:8px 0 0;justify-content:center}
  .brand__text small{display:none}
}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:14px 22px;border-radius:14px;font:600 15px var(--font-body);color:#fff;border:1px solid transparent;transition:transform .25s,box-shadow .25s,background .25s,border-color .25s;white-space:nowrap}
.btn svg{width:18px;height:18px}
.btn--primary{background:linear-gradient(135deg,#2ed0dd,#1e8fff);color:#04121f;box-shadow:0 14px 34px -10px rgba(25,198,212,.7),inset 0 1px 0 rgba(255,255,255,.35)}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 20px 44px -10px rgba(25,198,212,.9)}
.btn--ghost{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.2);backdrop-filter:blur(8px)}
.btn--ghost:hover{background:rgba(255,255,255,.12);transform:translateY(-2px)}
.btn--sm{padding:10px 16px;font-size:13.5px;border-radius:11px}
.btn--lg{padding:17px 28px;font-size:16px;border-radius:16px}
.btn--block{width:100%;margin-top:18px}

/* ---------- typography ---------- */
.label{display:inline-flex;align-items:center;gap:10px;font:600 12px var(--font-body);letter-spacing:.2em;text-transform:uppercase;color:var(--sea);margin:0 0 16px}
.label::before{content:"";width:26px;height:2px;border-radius:2px;background:currentColor}
.label--center{justify-content:center;display:flex}
.label--center::before{display:none}
.title{font:800 clamp(32px,4.4vw,54px)/1.06 var(--font-head);letter-spacing:-.02em;margin:0 0 20px}
.title em{font-style:normal;background:linear-gradient(90deg,#7fe6ef 0%,var(--gold-2) 100%);-webkit-background-clip:text;background-clip:text;color:transparent}
.title--center{text-align:center}
.lead{font-size:clamp(16px,1.35vw,18px);line-height:1.7;color:#dbe4f7;margin:0 0 16px}
.lead--muted{color:var(--mute)}
.lead--center{text-align:center;max-width:720px;margin-inline:auto}
.section{padding:110px 0;position:relative}
.section--alt{background:linear-gradient(180deg,var(--bg-2),var(--bg))}
.section__head{max-width:760px;margin-bottom:48px}
.section__head--center{margin-inline:auto;text-align:center}
.section__head--center .label{display:flex;justify-content:center}
.section__head--center .label::before{display:none}
@media (max-width:640px){.section{padding:72px 0}}

/* reveal */
[data-reveal]{opacity:0;transform:translateY(28px);transition:opacity .8s cubic-bezier(.2,.7,.2,1),transform .8s cubic-bezier(.2,.7,.2,1)}
[data-reveal].in{opacity:1;transform:none}

/* ---------- hero ---------- */
.hero{position:relative;height:250vh}
.hero__sticky{position:sticky;top:0;height:100vh;height:100svh;overflow:hidden;display:flex;align-items:center}
.hero__bg{position:absolute;inset:0;z-index:0;overflow:hidden}
.hero__poster,.hero__video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:50% 50%}
.hero__video{opacity:0;transition:opacity .8s}
.hero__video.is-ready{opacity:1}
.hero__poster{transform-origin:50% 50%;animation:approach 30s ease-in-out infinite alternate}
.hero__video.is-ready+.hero__poster,.hero__bg:has(.hero__video.is-ready) .hero__poster{animation:none}
@keyframes approach{from{transform:scale(1)}to{transform:scale(1.15)}}
.hero__shade{position:absolute;inset:0;z-index:2;background:linear-gradient(90deg,rgba(5,11,26,.9) 0%,rgba(5,11,26,.7) 40%,rgba(5,11,26,.3) 72%,rgba(5,11,26,.45) 100%),linear-gradient(180deg,rgba(5,11,26,.6) 0%,rgba(5,11,26,.15) 35%,rgba(5,11,26,.4) 75%,var(--bg) 100%)}
.hero__video,.hero__poster{filter:saturate(1.05) brightness(.92)}
.hero__grain{position:absolute;inset:0;z-index:2;opacity:.06;pointer-events:none;background-image:radial-gradient(rgba(255,255,255,.9) .6px,transparent .7px);background-size:3px 3px}
.hero__content{position:relative;z-index:3;padding-top:var(--header-h);width:min(1200px,100% - 48px)}
.hero__grid{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center;min-height:calc(100svh - var(--header-h))}
.hero__left{position:relative;min-height:520px}
.stage{position:absolute;left:0;right:0;top:50%;transform:translateY(-50%) translateY(30px);opacity:0;pointer-events:none;transition:opacity .7s cubic-bezier(.2,.7,.2,1),transform .7s cubic-bezier(.2,.7,.2,1)}
.stage.is-active{opacity:1;transform:translateY(-50%);pointer-events:auto}
.hero__track{height:100vh}
.kicker{display:inline-flex;align-items:center;gap:10px;max-width:100%;padding:9px 16px 9px 10px;border-radius:999px;background:rgba(5,11,26,.5);border:1px solid rgba(255,255,255,.16);backdrop-filter:blur(10px);font:600 12.5px var(--font-body);letter-spacing:.12em;text-transform:uppercase;color:#e8f6ff;margin:0 0 26px}
.kicker__dot{width:9px;height:9px;border-radius:50%;background:var(--sea);box-shadow:0 0 0 4px rgba(25,198,212,.25);animation:pulse 2.2s infinite}
.kicker--warn .kicker__dot{background:var(--warn);box-shadow:0 0 0 4px rgba(255,159,67,.25)}
@keyframes pulse{50%{box-shadow:0 0 0 8px rgba(25,198,212,.08)}}
.hero__title{margin:0 0 30px;display:flex;flex-direction:column;gap:6px;text-shadow:0 10px 40px rgba(0,0,0,.45)}
.hero__line{display:flex;flex-wrap:wrap;align-items:baseline;gap:0 .25em}
.hero__line--top{font:800 clamp(26px,3.1vw,44px)/1 var(--font-head);letter-spacing:-.02em;align-items:center;gap:0 .3em}
.hero__line--summit{margin-top:4px}
.hero__summit{position:relative;display:inline-block;font:800 clamp(44px,6.4vw,92px)/.95 var(--font-head);letter-spacing:-.03em;white-space:nowrap;color:#ffd982;background:linear-gradient(100deg,#ffe9b0 0%,#f2c14e 28%,#fff3c9 50%,#f2c14e 72%,#ffb347 100%);background-size:220% 100%;-webkit-background-clip:text;background-clip:text;color:transparent;animation:rise .9s .12s cubic-bezier(.2,.8,.2,1) both,shine 5.5s 1.2s linear infinite;filter:drop-shadow(0 0 18px rgba(242,193,78,.45)) drop-shadow(0 14px 30px rgba(0,0,0,.5))}
.hero__summit::after{content:attr(data-text);position:absolute;inset:0;z-index:-1;color:transparent;-webkit-text-stroke:1.5px rgba(255,217,130,.35);background:none;transform:translate(0,0);filter:blur(8px);opacity:.9}
@keyframes shine{0%{background-position:120% 0}100%{background-position:-120% 0}}
.hero__title{text-wrap:balance}
.hero__word{display:inline-block;animation:rise .9s cubic-bezier(.2,.8,.2,1) both}
.hero__word--accent{background:linear-gradient(90deg,#8ff0f7,var(--sea-2) 60%,#b4d9ff);-webkit-background-clip:text;background-clip:text;color:transparent;animation-delay:.12s}
.hero__year{display:inline-block;font:700 clamp(13px,1.3vw,18px)/1 var(--font-head);letter-spacing:.2em;color:var(--gold);padding:8px 12px;margin-left:.1em;border:1.5px solid rgba(242,193,78,.55);border-radius:14px;animation:rise .9s .25s cubic-bezier(.2,.8,.2,1) both;transform-origin:left;background:rgba(5,11,26,.35);box-shadow:0 0 0 4px rgba(242,193,78,.08),0 0 24px rgba(242,193,78,.25)}
@keyframes rise{from{opacity:0;transform:translateY(40px)}}
.hero__meta{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:30px}
.date-pill{display:flex;flex-direction:column;gap:2px;padding:12px 18px;border-radius:16px;background:rgba(5,11,26,.6);border:1px solid rgba(255,255,255,.14);backdrop-filter:blur(12px)}
.date-pill__label{font:600 11px var(--font-body);letter-spacing:.16em;text-transform:uppercase;color:var(--mute)}
.date-pill__value{font:700 20px/1.1 var(--font-head)}
.date-pill__value em{font-style:normal;color:var(--sea)}
.date-pill--warn{border-color:rgba(255,159,67,.45)}
.date-pill--warn .date-pill__value{color:var(--gold-2)}
.hero__cta{display:flex;flex-wrap:wrap;gap:12px}
.stage__title{font:800 clamp(38px,5.6vw,76px)/1.02 var(--font-head);letter-spacing:-.03em;margin:0 0 20px;text-shadow:0 10px 40px rgba(0,0,0,.45)}
.stage__title em{font-style:normal;background:linear-gradient(90deg,#8ff0f7,var(--gold-2));-webkit-background-clip:text;background-clip:text;color:transparent}
.stage__text{font-size:clamp(17px,1.6vw,21px);line-height:1.6;color:#e2ebff;max-width:560px;margin:0}

/* connect / network görseli */
.hero__visual{position:relative;aspect-ratio:1;max-width:560px;width:100%;margin-left:auto;animation:rise 1.1s .3s cubic-bezier(.2,.8,.2,1) both}
.net{position:absolute;inset:0;width:100%;height:100%;overflow:visible}
.net__lines{fill:none;stroke-width:1.4;stroke-dasharray:7 9;opacity:.8;animation:dash 6s linear infinite}
@keyframes dash{to{stroke-dashoffset:-160}}
.net__nodes circle{stroke-width:2.2;animation:nodePulse 3s ease-in-out infinite}
.net__nodes circle:nth-child(2){animation-delay:-.6s}.net__nodes circle:nth-child(3){animation-delay:-1.2s}.net__nodes circle:nth-child(4){animation-delay:-1.8s}.net__nodes circle:nth-child(5){animation-delay:-2.4s}.net__nodes circle:nth-child(6){animation-delay:-3s}
@keyframes nodePulse{50%{stroke:#f2c14e;transform:scale(1.25)}}
.net__nodes circle{transform-box:fill-box;transform-origin:center}
.net__core{filter:drop-shadow(0 0 14px rgba(25,198,212,.9))}
.net__ring{stroke-width:1.2;opacity:.7;transform-box:fill-box;transform-origin:center;animation:ring 3s ease-out infinite}
.net__ring--2{animation-delay:1.5s}
@keyframes ring{from{transform:scale(.5);opacity:.9}to{transform:scale(1.6);opacity:0}}
.shot{position:absolute;margin:0;border-radius:22px;overflow:hidden;box-shadow:0 40px 90px -30px rgba(0,0,0,.9),0 0 0 1px rgba(255,255,255,.14);background:#0a1428}
.shot img{width:100%;height:100%;object-fit:cover;display:block}
.shot--main{right:0;top:9%;width:66%;aspect-ratio:4/3;transform:rotate(-3deg);animation:float 7s ease-in-out infinite}
.shot--sub{left:2%;bottom:6%;width:44%;aspect-ratio:4/3;transform:rotate(4deg);animation:float 7s -3.5s ease-in-out infinite}
.shot::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 55%,rgba(5,11,26,.55));pointer-events:none}
.tag{position:absolute;display:inline-flex;align-items:center;gap:8px;padding:9px 14px;border-radius:999px;background:rgba(5,11,26,.82);border:1px solid rgba(255,255,255,.18);backdrop-filter:blur(10px);font:700 12.5px var(--font-body);letter-spacing:.08em;text-transform:uppercase;color:#fff;box-shadow:0 16px 30px -16px rgba(0,0,0,.9);animation:float 6s ease-in-out infinite}
.tag i{width:8px;height:8px;border-radius:50%;background:var(--sea);box-shadow:0 0 0 3px rgba(25,198,212,.25)}
.tag--1{left:6%;top:12%}
.tag--2{right:2%;bottom:24%;animation-delay:-2s}.tag--2 i{background:var(--gold);box-shadow:0 0 0 3px rgba(242,193,78,.25)}
.tag--3{left:38%;bottom:-2%;animation-delay:-4s}.tag--3 i{background:#ff9ec0;box-shadow:0 0 0 3px rgba(255,158,192,.25)}
@keyframes float{50%{transform:translateY(-8px) rotate(var(--rot,0deg))}}
.shot--main{--rot:-3deg}.shot--sub{--rot:4deg}

.hero__countdown{position:relative;left:auto;right:auto;bottom:auto;z-index:4;display:inline-flex;align-items:baseline;gap:6px;width:max-content;max-width:100%;margin-top:24px;margin-left:0;padding:12px 16px;border-radius:16px;background:rgba(5,11,26,.6);border:1px solid rgba(255,255,255,.14);backdrop-filter:blur(12px)}.hero__countdown-label{font:600 11px var(--font-body);letter-spacing:.14em;text-transform:uppercase;color:var(--mute);margin-right:8px}
.hero__countdown b{font:700 22px/1 var(--font-head);color:#fff;font-variant-numeric:tabular-nums}
.hero__countdown small{font-size:11px;color:var(--mute);margin-right:8px}
.hero__scroll{position:absolute;left:50%;bottom:26px;z-index:4;transform:translateX(-50%);display:flex;flex-direction:column;align-items:center;gap:8px;font:600 11px var(--font-body);letter-spacing:.24em;text-transform:uppercase;color:var(--mute)}
.hero__scroll i{width:1px;height:44px;background:linear-gradient(180deg,var(--sea),transparent);position:relative;overflow:hidden}
.hero__scroll i::after{content:"";position:absolute;left:0;top:-100%;width:100%;height:100%;background:#fff;animation:drop 1.8s infinite}
@keyframes drop{to{top:100%}}
.hero__dots{position:absolute;left:24px;top:50%;transform:translateY(-50%);z-index:4;display:flex;flex-direction:column;gap:10px}
.hero__dots i{width:6px;height:6px;border-radius:50%;background:rgba(255,255,255,.3);transition:background .3s,transform .3s}
.hero__dots i.is-on{background:var(--sea);transform:scale(1.5);box-shadow:0 0 0 4px rgba(25,198,212,.25)}
@media (max-width:1100px){.hero__grid{grid-template-columns:1.1fr .9fr;gap:24px}.hero__visual{max-width:440px}}
@media (max-width:900px){
  .hero__dots,.hero__countdown,.hero__scroll,.hero__track{display:none}
  .hero{height:auto}
  .hero__sticky{position:relative;height:auto;min-height:100svh;padding-bottom:56px;align-items:flex-start}
  .hero__grid{grid-template-columns:1fr;min-height:auto;align-items:start;gap:28px}
  .hero__left{min-height:0;padding-top:32px}
  .stage,.stage.is-active{position:relative;top:auto;transform:none;opacity:1;pointer-events:auto}
  .stage--cta{display:none}
  .hero__title{margin-bottom:24px;gap:4px}
  .hero__line--top{font-size:clamp(22px,6.2vw,30px)}
  .hero__summit{font-size:clamp(42px,12.2vw,56px)}
  .hero__year{padding:7px 10px;font-size:12px}
  .hero__visual{max-width:min(78vw,380px);margin:8px auto 0;aspect-ratio:1.15;animation:none}
  .hero__shade{background:linear-gradient(180deg,rgba(5,11,26,.86) 0%,rgba(5,11,26,.6) 45%,rgba(5,11,26,.55) 80%,var(--bg) 100%)}
  .ticker{mask-image:linear-gradient(90deg,transparent,#000 4%,#000 96%,transparent);-webkit-mask-image:linear-gradient(90deg,transparent,#000 4%,#000 96%,transparent)}
}
@media (max-width:640px){
  .hero__line{gap:0 .18em}.hero__visual{max-width:min(84vw,320px)}.tag{font-size:11px;padding:7px 11px}.hero__meta{gap:8px}.date-pill{padding:10px 14px}.date-pill__value{font-size:17px}
  .kicker{font-size:11.5px;letter-spacing:.1em;padding:8px 14px 8px 10px;margin-bottom:20px}
  .hero__cta .btn{width:100%}
}
@media (prefers-reduced-motion:reduce){.hero__summit{animation:none}.hero{height:auto}.hero__sticky{position:relative}.hero__track{display:none}.stage{position:relative;top:auto;transform:none;opacity:1;pointer-events:auto;margin-bottom:40px}.hero__word,.hero__year,.hero__poster,.net__lines,.net__nodes circle,.net__ring,.shot,.tag,.hero__visual{animation:none}[data-reveal]{opacity:1;transform:none}}

/* ---------- ticker ---------- */
.ticker{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:linear-gradient(90deg,rgba(25,198,212,.08),transparent,rgba(242,193,78,.08));overflow:hidden;padding:16px 0;mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);-webkit-mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent)}
.ticker__track{display:flex;gap:52px;width:max-content;animation:marquee 40s linear infinite}
.ticker:hover .ticker__track{animation-play-state:paused}
.ticker__track span{display:inline-flex;align-items:center;gap:16px;font:600 14px var(--font-body);letter-spacing:.06em;text-transform:uppercase;color:#dfe7ff;white-space:nowrap}
.ticker__track span::before{content:"";width:8px;height:8px;border-radius:50%;background:linear-gradient(135deg,var(--sea),var(--gold))}
@keyframes marquee{to{transform:translateX(-50%)}}

/* ---------- about ---------- */
.about{display:grid;grid-template-columns:1.15fr .85fr;gap:64px;align-items:center}
.features{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:34px}
.feature{padding:20px 18px 18px;border-radius:18px;background:var(--glass);border:1px solid var(--line);transition:transform .35s,border-color .35s,background .35s}
.feature:hover{transform:translateY(-4px);border-color:rgba(25,198,212,.45);background:rgba(255,255,255,.08)}
.feature__icon{display:grid;place-items:center;width:44px;height:44px;border-radius:13px;margin-bottom:14px;background:linear-gradient(135deg,rgba(25,198,212,.3),rgba(63,169,255,.15));border:1px solid rgba(25,198,212,.35)}
.feature__icon svg{width:22px;height:22px;stroke:#9ff0f7}
.feature b{display:block;font:700 17px var(--font-head);margin-bottom:6px}
.feature span{font-size:14px;line-height:1.55;color:var(--mute)}
.about__visual{position:relative}
.poster{position:relative;border-radius:26px;overflow:hidden;box-shadow:0 50px 100px -40px rgba(0,0,0,.9),0 0 0 1px rgba(255,255,255,.1);transform:perspective(1200px) rotateY(var(--ry,0deg)) rotateX(var(--rx,0deg));transition:transform .15s ease-out}
.poster img{width:100%;height:auto}
.poster__glow{position:absolute;inset:-30%;background:radial-gradient(circle at var(--gx,50%) var(--gy,50%),rgba(255,255,255,.18),transparent 35%);pointer-events:none;mix-blend-mode:screen}
.chip{position:absolute;padding:12px 16px;border-radius:14px;background:rgba(5,11,26,.85);border:1px solid rgba(255,255,255,.16);backdrop-filter:blur(10px);box-shadow:0 20px 40px -20px rgba(0,0,0,.8);animation:float 6s ease-in-out infinite}
.chip b{display:block;font:700 17px var(--font-head)}
.chip span{font-size:12px;color:var(--mute);letter-spacing:.1em;text-transform:uppercase}
.chip--a{left:-22px;top:32px}
.chip--b{right:-18px;bottom:44px;animation-delay:-3s}
.chip--b b{color:var(--gold)}
@keyframes float{50%{transform:translateY(-8px)}}
@media (max-width:980px){.about{grid-template-columns:1fr;gap:44px}.about__visual{max-width:520px;margin:0 auto}}
@media (max-width:980px){.features{grid-template-columns:repeat(3,1fr)}}
@media (max-width:640px){.features{grid-template-columns:1fr;gap:10px}.feature{display:grid;grid-template-columns:44px 1fr;column-gap:14px;align-items:center;padding:14px 16px}.feature__icon{margin:0;grid-row:1/3}.feature b{margin-bottom:2px}.chip--a{left:8px}.chip--b{right:8px}}

/* ---------- location ---------- */
.location{position:relative;padding:130px 0;overflow:hidden;isolation:isolate}
.location__bg{position:absolute;inset:-12% 0;z-index:-2}
.location__bg img{width:100%;height:100%;object-fit:cover;filter:saturate(1.15) brightness(.75)}
.location__shade{position:absolute;inset:0;z-index:-1;background:linear-gradient(90deg,rgba(5,11,26,.95) 0%,rgba(5,11,26,.8) 45%,rgba(5,11,26,.45) 100%),linear-gradient(180deg,var(--bg) 0%,transparent 18%,transparent 82%,var(--bg) 100%)}
.location__in{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.location__card{padding:44px;border-radius:28px;background:rgba(5,11,26,.6);border:1px solid var(--line);backdrop-filter:blur(14px)}
.info{list-style:none;margin:8px 0 0;padding:0;display:grid;gap:12px}
.info li{display:flex;align-items:center;gap:14px;padding:14px 16px;border-radius:16px;background:rgba(255,255,255,.05);border:1px solid var(--line)}
.info i{flex:none;display:grid;place-items:center;width:42px;height:42px;border-radius:12px;background:rgba(25,198,212,.14);border:1px solid rgba(25,198,212,.3)}
.info svg{width:20px;height:20px;stroke:#9ff0f7}
.info small{display:block;font:600 11px var(--font-body);letter-spacing:.16em;text-transform:uppercase;color:var(--mute)}
.info b{font:700 16px var(--font-head)}
.location__photo{margin:0;position:relative;border-radius:28px;overflow:hidden;box-shadow:0 50px 100px -40px rgba(0,0,0,.9),0 0 0 1px rgba(255,255,255,.12)}
.location__photo img{width:100%;height:100%;aspect-ratio:4/3;object-fit:cover;transition:transform 1.2s cubic-bezier(.2,.7,.2,1)}
.location__photo:hover img{transform:scale(1.04)}
.location__photo figcaption{position:absolute;left:18px;bottom:18px;padding:8px 14px;border-radius:999px;background:rgba(5,11,26,.75);border:1px solid rgba(255,255,255,.16);font:600 12px var(--font-body);letter-spacing:.1em;text-transform:uppercase;backdrop-filter:blur(8px)}
@media (max-width:980px){.location__in{grid-template-columns:1fr}.location__card{padding:30px 24px}.location{padding:90px 0}}

/* ---------- katılım şartları ---------- */
.intro{display:grid;grid-template-columns:1.4fr .8fr;gap:22px;margin-bottom:34px}
.intro__col{padding:32px;border-radius:24px;background:var(--glass);border:1px solid var(--line)}
.intro__col p{margin:0 0 14px;color:#dbe4f7;line-height:1.75}
.intro__col p:last-child{margin:0}
.intro strong{color:#fff}
.alert{display:flex;gap:14px;align-items:flex-start;align-self:start;padding:26px;border-radius:24px;background:linear-gradient(160deg,rgba(255,159,67,.14),rgba(242,193,78,.06));border:1px solid rgba(255,159,67,.4);line-height:1.65;color:#ffe7c4}
.alert i{flex:none;display:grid;place-items:center;width:40px;height:40px;border-radius:12px;background:rgba(255,159,67,.18)}
.alert svg{width:20px;height:20px;stroke:var(--warn)}
.alert strong{color:#fff}
.tiers{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;align-items:stretch}
.tier{position:relative;padding:30px 28px;border-radius:26px;background:var(--glass);border:1px solid var(--line);display:flex;flex-direction:column;transition:transform .35s,border-color .35s,box-shadow .35s}
.tier:hover{transform:translateY(-6px);border-color:rgba(255,255,255,.25)}
.tier__head{display:flex;align-items:center;gap:14px;margin-bottom:22px}
.tier__badge{display:grid;place-items:center;width:52px;height:52px;border-radius:16px;background:rgba(255,255,255,.08);border:1px solid var(--line)}
.tier__badge svg{width:24px;height:24px}
.tier__name{font:800 22px var(--font-head);letter-spacing:.06em;text-transform:uppercase}
.tier__list{list-style:none;margin:0 0 22px;padding:0;display:grid;gap:12px}
.tier__list li{display:flex;gap:11px;align-items:flex-start;font-size:14.5px;line-height:1.55;color:#dbe4f7}
.tier__list i{flex:none;margin-top:4px;width:16px;height:16px}
.tier__list svg{width:16px;height:16px;stroke:var(--sea)}
.tier__list strong{color:#fff}
.prices{margin-top:auto;display:grid;grid-template-columns:1fr 1fr;gap:10px}
.price{padding:14px 14px 12px;border-radius:16px;background:rgba(5,11,26,.5);border:1px solid var(--line)}
.price small{display:block;font:600 10.5px var(--font-body);letter-spacing:.14em;text-transform:uppercase;color:var(--mute);margin-bottom:6px}
.price b{display:block;font:800 26px/1 var(--font-head);margin-bottom:6px}
.price span{font-size:11.5px;color:var(--mute)}
.tier--platinum{background:linear-gradient(180deg,rgba(25,198,212,.16),rgba(255,255,255,.04));border-color:rgba(25,198,212,.5);box-shadow:0 40px 80px -40px rgba(25,198,212,.5)}
.tier--platinum .tier__badge{background:linear-gradient(135deg,#2ed0dd,#1e8fff);border-color:transparent;color:#04121f}
.tier--platinum .tier__name{color:#9ff0f7}
.tier--platinum .price b{color:#fff}
.tier--gold .tier__badge{color:var(--gold)}
.tier--gold .tier__name{color:var(--gold-2)}
.tier--gold .tier__list svg{stroke:var(--gold)}
.tier--silver .tier__badge{color:#cfd8e6}
.tier--silver .tier__name{color:#d8e0ee}
.tier--silver .tier__list svg{stroke:#b9c6dc}
@media (min-width:981px){.tier--platinum{transform:scale(1.03)}.tier--platinum:hover{transform:scale(1.03) translateY(-6px)}}
.notes{list-style:none;margin:30px 0 0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:12px}
.notes li{display:flex;gap:12px;align-items:flex-start;padding:16px 18px;border-radius:16px;background:var(--glass);border:1px solid var(--line);font-size:14.5px;line-height:1.55;color:#dbe4f7}
.notes i{flex:none;display:grid;place-items:center;width:24px;height:24px;border-radius:50%;background:rgba(25,198,212,.16);margin-top:1px}
.notes svg{width:13px;height:13px;stroke:var(--sea);stroke-width:2.6}
.notes strong{color:#fff}
@media (max-width:980px){.tiers{grid-template-columns:1fr;max-width:560px;margin-inline:auto}.intro{grid-template-columns:1fr}.notes{grid-template-columns:1fr}}

/* ---------- sponsors ---------- */
.stat{display:inline-flex;align-items:center;gap:14px;margin:4px auto 0;padding:14px 24px 14px 18px;border-radius:18px;background:rgba(25,198,212,.1);border:1px solid rgba(25,198,212,.4);text-align:left}
.stat b{font:800 40px/1 var(--font-head);background:linear-gradient(180deg,#fff,#9ff0f7);-webkit-background-clip:text;background-clip:text;color:transparent;font-variant-numeric:tabular-nums}
.stat span{display:flex;flex-direction:column;font:700 15px/1.2 var(--font-head);color:#fff}
.stat span small{display:block}
.stat small{font:500 12px var(--font-body);color:var(--mute);margin-top:4px}
.logos{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.logo{position:relative;display:grid;place-items:center;min-height:118px;padding:24px;border-radius:20px;background:var(--glass);border:1px solid var(--line);transition:transform .35s,border-color .35s,background .35s,box-shadow .35s;overflow:hidden}
.logo::before{content:"";position:absolute;inset:0;background:radial-gradient(300px circle at var(--mx,50%) var(--my,50%),rgba(25,198,212,.18),transparent 45%);opacity:0;transition:opacity .35s}
.logo:hover{transform:translateY(-4px);border-color:rgba(25,198,212,.5);box-shadow:0 30px 60px -30px rgba(25,198,212,.5)}
.logo:hover::before{opacity:1}
.logo img{position:relative;max-height:44px;max-width:78%;object-fit:contain;filter:grayscale(1) brightness(1.4);opacity:.85;transition:filter .35s,opacity .35s}
.logo img[src*="elitarge"]{max-height:64px}
.logo img[src*="isyazilim"]{max-height:34px;max-width:86%}
.logo img.x{width:auto;max-width:78%;object-fit:contain;filter:grayscale(1) brightness(1.4);opacity:.85;transition:filter .35s,opacity .35s}
.logo:hover img{filter:none;opacity:1}
.logo--light img{filter:brightness(0) invert(1) opacity(.85);max-height:52px;max-width:78%;width:auto;height:auto}
.logo--light:hover img{filter:none;opacity:1}
.logo--color img{filter:none;opacity:1;max-height:70px;width:auto}
.logo img[src*="anadolu-ajansi"]{max-height:76px}
.logo img[src*="peakeye"]{max-height:60px}
.logo--placeholder{border-style:dashed;border-color:rgba(255,255,255,.2)}
.logo--text span{font:800 22px var(--font-head);letter-spacing:.06em;text-transform:uppercase;color:#dfe7ff}
.logo--placeholder span{font:600 13px var(--font-body);letter-spacing:.12em;text-transform:uppercase;color:var(--mute)}
@media (max-width:900px){.logos{grid-template-columns:repeat(3,1fr)}}
@media (max-width:560px){.logos{grid-template-columns:repeat(2,1fr);gap:10px}.logo{min-height:96px;padding:16px}}

/* katılımcı grupları */
.pgroups{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;align-items:start}
.pgroup{padding:22px;border-radius:24px;background:var(--glass);border:1px solid var(--line)}
.pgroup__head{display:flex;align-items:center;gap:12px;margin:0 0 16px;font:800 18px var(--font-head);letter-spacing:.04em;text-transform:uppercase}
.pgroup__badge{display:grid;place-items:center;width:42px;height:42px;border-radius:13px;background:rgba(255,255,255,.08);border:1px solid var(--line);flex:none}
.pgroup__badge svg{width:20px;height:20px}
.pgroup__logos{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.pgroup .logo{min-height:96px;padding:16px}
.pgroup .logo img{max-height:36px}
.pgroup--platinum{background:linear-gradient(180deg,rgba(25,198,212,.14),rgba(255,255,255,.04));border-color:rgba(25,198,212,.45);box-shadow:0 40px 80px -40px rgba(25,198,212,.45)}
.pgroup--platinum .pgroup__badge{background:linear-gradient(135deg,#2ed0dd,#1e8fff);border-color:transparent;color:#04121f}
.pgroup--platinum .pgroup__head{color:#9ff0f7}
.pgroup--gold .pgroup__badge{color:var(--gold)}.pgroup--gold .pgroup__head{color:var(--gold-2)}
.pgroup--silver .pgroup__badge{color:#cfd8e6}.pgroup--silver .pgroup__head{color:#d8e0ee}
@media (max-width:980px){.pgroups{grid-template-columns:1fr}}
@media (max-width:420px){.pgroup__logos{grid-template-columns:1fr 1fr;gap:8px}.pgroup .logo{min-height:80px;padding:12px}}

/* ---------- registration ---------- */
.reg{position:relative;padding:130px 0;overflow:hidden;isolation:isolate;text-align:center}
.reg__bg{position:absolute;inset:0;z-index:-1}
.reg__bg img{width:100%;height:100%;object-fit:cover;filter:blur(2px) brightness(.35) saturate(1.2);transform:scale(1.06)}
.reg__bg::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,var(--bg) 0%,rgba(5,11,26,.6) 30%,rgba(5,11,26,.7) 70%,var(--bg) 100%),radial-gradient(700px 400px at 50% 50%,rgba(25,198,212,.2),transparent 65%)}
.countdown{display:flex;justify-content:center;align-items:center;gap:14px;margin:38px 0 26px}
.countdown i{font:800 40px/1 var(--font-head);color:var(--sea);opacity:.7;padding-bottom:26px}
.cd{min-width:118px;padding:20px 12px 16px;border-radius:22px;background:rgba(5,11,26,.6);border:1px solid rgba(255,255,255,.16);backdrop-filter:blur(12px);box-shadow:0 30px 60px -30px rgba(0,0,0,.9),inset 0 1px 0 rgba(255,255,255,.08)}
.cd b{display:block;font:800 clamp(36px,5vw,58px)/1 var(--font-head);font-variant-numeric:tabular-nums;background:linear-gradient(180deg,#fff,#bfe9ff);-webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:8px}
.cd span{font:600 11px var(--font-body);letter-spacing:.2em;text-transform:uppercase;color:var(--mute)}
.deadline{display:inline-flex;align-items:center;gap:10px;padding:10px 18px;border-radius:999px;background:rgba(255,159,67,.14);border:1px solid rgba(255,159,67,.45);font:700 13px var(--font-body);letter-spacing:.14em;text-transform:uppercase;color:#ffd9ad;margin:0 0 22px}
.deadline svg{width:16px;height:16px;stroke:var(--warn)}
.reg__cta{display:flex;justify-content:center;gap:14px;flex-wrap:wrap;margin-top:30px}
@media (max-width:640px){.countdown{gap:6px}.cd{min-width:0;flex:1;padding:14px 6px 12px;border-radius:16px}.countdown i{font-size:26px;padding-bottom:20px}.reg{padding:90px 0}}

/* ---------- footer ---------- */
.footer{border-top:1px solid var(--line);background:linear-gradient(180deg,#040917,#02060f);padding:56px 0 40px}
.footer__in{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:32px;align-items:start}
.footer__brand{display:flex;align-items:center;gap:14px}
.footer__brand img{width:52px;height:52px;border-radius:14px;background:#fff;padding:5px}
.footer__brand b{display:block;font:700 16px var(--font-head)}
.footer__brand span{font-size:13px;color:var(--mute)}
.footer__contact{display:flex;flex-direction:column;gap:8px}
.footer__contact a{color:#dfe7ff;transition:color .25s}
.footer__contact a:hover{color:var(--sea)}
.footer__social span{display:block;font:600 11px var(--font-body);letter-spacing:.2em;text-transform:uppercase;color:var(--mute);margin-bottom:12px}
.footer__social nav{display:flex;gap:10px}
.footer__social a{display:grid;place-items:center;width:42px;height:42px;border-radius:12px;background:var(--glass);border:1px solid var(--line);transition:transform .25s,border-color .25s,background .25s}
.footer__social a:hover{transform:translateY(-3px);border-color:rgba(25,198,212,.5);background:rgba(25,198,212,.12)}
.footer__social svg{width:18px;height:18px}
.footer__copy{grid-column:1/-1;margin-top:24px;padding-top:20px;border-top:1px solid var(--line);font-size:13px;color:var(--mute);display:flex;gap:14px;flex-wrap:wrap}
@media (max-width:820px){.footer__in{grid-template-columns:1fr;gap:26px}}

/* ---------- to top ---------- */
.totop{position:fixed;left:22px;bottom:22px;z-index:800;display:grid;place-items:center;width:46px;height:46px;border-radius:14px;background:rgba(5,11,26,.8);border:1px solid var(--line);backdrop-filter:blur(10px);opacity:0;transform:translateY(12px);pointer-events:none;transition:opacity .3s,transform .3s,border-color .3s}
.totop.is-visible{opacity:1;transform:none;pointer-events:auto}
.totop:hover{border-color:var(--sea)}
.totop svg{width:18px;height:18px}

/* sohbet balonu sağ altta (fichat) — sağ alt köşeyi boş bırak */
.footer{padding-bottom:96px}
@media (max-width:640px){.reg__cta{margin-bottom:24px}}