/* Yarışma akışı — yatay zaman çizelgesi (03.10.2026).
   Ana sayfadaki "Nasıl işliyor?" (#nasil) bölümü. Dört durak bir ray üzerinde;
   ray sayfa kaydırıldıkça (mobilde yatay kaydırmada) mavi → kırmızı → sarı dolar,
   ucundaki ışık durağa varınca durak yanar, sayaç sayar, kadro noktaları
   kademeli yanar (40 → 20 → 8 → 1). Hareket yalnız html.motion altında; hareket
   azaltma tercihinde her şey son hâliyle, durağan görünür (timeline.js). */

/* Arka plan (03.10.2026 rev.): marka ızgarası (brand.css .how-section) okunurluğu
   düşürdüğü için neredeyse görünmez; kenarlara doğru tamamen kaybolur. Yerine
   üç katman ışık: (1) bölüm geneli yavaş akan renk bulutları (.tl-aurora),
   (2) her durağın arkasında kendi renginde ışık (.tl-glows i) — durak yanınca
   açılır, ray dolunca rayın üzerinden geçen parıltıyla aynı anda nefes alır,
   (3) rayın ucunu izleyen sıcak ışık (.tl-sweep). */
.tl-section.how-section{position:relative;overflow:hidden;padding-block:96px 88px;background:#0b0b10}
.tl-section::before{content:'';position:absolute;inset:0;pointer-events:none;z-index:0;
  background:url('assets/grid.png') center/cover;opacity:.06;
  -webkit-mask-image:radial-gradient(ellipse 75% 70% at 50% 50%,#000 20%,transparent 80%);mask-image:radial-gradient(ellipse 75% 70% at 50% 50%,#000 20%,transparent 80%)}
.tl-section>.shell{position:relative;z-index:1}

.tl-aurora{position:absolute;inset:0;pointer-events:none;overflow:hidden;z-index:0}
.tl-aurora i{position:absolute;border-radius:50%;filter:blur(90px);opacity:.13;will-change:transform}
.tl-aurora i:nth-child(1){width:58vw;height:58vw;max-width:880px;max-height:880px;left:-18%;top:-30%;background:radial-gradient(circle,rgba(66,133,244,.9),transparent 62%)}
.tl-aurora i:nth-child(2){width:52vw;height:52vw;max-width:800px;max-height:800px;right:-16%;bottom:-34%;background:radial-gradient(circle,rgba(234,67,53,.85),transparent 62%);opacity:.09}
.tl-aurora i:nth-child(3){width:40vw;height:40vw;max-width:620px;max-height:620px;left:46%;top:22%;background:radial-gradient(circle,rgba(251,188,4,.7),transparent 62%);opacity:.05}

.tl-glows{position:absolute;inset:0;pointer-events:none;z-index:0}
.tl-glows i{--c:var(--blue);position:absolute;left:var(--x,0px);top:var(--rail-y);width:460px;height:460px;margin:-150px 0 0 -230px;border-radius:50%;
  background:radial-gradient(closest-side,color-mix(in srgb,var(--c) 34%,transparent),color-mix(in srgb,var(--c) 10%,transparent) 55%,transparent);
  opacity:.08;filter:blur(8px);transition:opacity 1.6s ease,transform 1.6s ease;will-change:opacity,transform}
.tl-glows i:nth-child(2){--c:var(--red)}
.tl-glows i:nth-child(3){--c:var(--yellow)}
.tl-glows i:nth-child(4){--c:var(--yellow)}
.tl-glows i.is-on{opacity:.5}
.tl-glows i:nth-child(4).is-on{opacity:.5}
.tl-sweep{position:absolute;top:var(--rail-y);left:calc(var(--rail-l,0px) + var(--fill,0px));width:300px;height:180px;margin:-90px 0 0 -150px;border-radius:50%;
  background:radial-gradient(closest-side,rgba(255,236,170,.16),rgba(251,188,4,.05) 50%,transparent);opacity:0;transition:left .5s var(--ease),opacity .5s}

/* Başlık */
.tl-head{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:end;gap:40px;margin-bottom:58px}
.tl-head .eyebrow{color:var(--yellow);margin-bottom:18px;justify-content:flex-start}
.tl-head h2{white-space:pre-line;font-size:clamp(36px,3.9vw,52px);line-height:.9;letter-spacing:0}
.tl-funnel{display:flex;align-items:flex-end;gap:14px;padding-bottom:6px}
.tl-funnel li{list-style:none;display:flex;flex-direction:column;align-items:center;gap:6px}
.tl-funnel b{font:400 34px/1 ArenaDisplay,Impact,sans-serif;color:var(--c)}
.tl-funnel small{font-size:8px;letter-spacing:1.6px;font-weight:700;color:var(--muted)}
.tl-funnel i{font-style:normal;color:#4a4a58;font-size:18px;padding-bottom:16px}
.tl-funnel ol{display:flex;align-items:flex-end;gap:14px;margin:0;padding:0}

/* Ray ve duraklar */
.tl{--rail-y:28px;position:relative}
.tl-scroller{position:relative}
.tl-lane{position:relative}
.tl-rail{position:absolute;top:calc(var(--rail-y) - 1px);left:0;width:0;height:2px;background:rgba(255,255,255,.1);border-radius:2px;z-index:0}
.tl-rail-fill{position:absolute;inset:0 auto 0 0;width:var(--fill,0px);border-radius:2px;
  background:linear-gradient(90deg,var(--blue),var(--red) 50%,var(--yellow));background-size:var(--rail-w,100%) 100%;
  box-shadow:0 0 10px rgba(251,188,4,.14)}
.tl-rail-fill::after{content:'';position:absolute;inset:-1px 0;background:linear-gradient(90deg,transparent,rgba(255,255,255,.5) 50%,transparent);
  background-size:120px 100%;background-repeat:no-repeat;opacity:0}
.tl-comet{position:absolute;top:50%;left:var(--fill,0px);width:10px;height:10px;margin:-5px 0 0 -5px;border-radius:50%;background:#fff;opacity:0;
  box-shadow:0 0 0 3px rgba(255,255,255,.1),0 0 12px 2px rgba(251,188,4,.32)}
.tl-comet::before{content:'';position:absolute;right:5px;top:50%;width:90px;height:2px;margin-top:-1px;background:linear-gradient(90deg,transparent,rgba(255,255,255,.85))}

.tl-list{list-style:none;margin:0;padding:0;position:relative;z-index:1;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:26px}
.tl-stop{--c:var(--blue);display:flex;flex-direction:column;min-width:0}
.tl-stop[data-stop="2"]{--c:var(--red)}
.tl-stop[data-stop="3"]{--c:var(--yellow)}
.tl-stop[data-stop="4"]{--c:#f5f4f1}

.tl-node{position:relative;width:56px;height:56px;flex:none;border-radius:50%;display:grid;place-items:center;
  background:#101015;border:1px solid #3a3a48;color:#6c6e7d;font:400 22px/1 ArenaDisplay,Impact,sans-serif;
  transition:border-color .45s,color .45s,background-color .45s,box-shadow .45s,transform .45s var(--ease)}
.tl-ring{position:absolute;inset:-1px;border-radius:50%;border:1px solid var(--c);opacity:0;pointer-events:none}
.tl-stop.is-on .tl-node{color:var(--white);border-color:var(--c);background:color-mix(in srgb,var(--c) 20%,#101015);
  box-shadow:0 0 0 5px color-mix(in srgb,var(--c) 10%,transparent),0 0 18px color-mix(in srgb,var(--c) 22%,transparent)}
.tl-stop[data-stop="4"].is-on .tl-node{color:#0b0b0f;background:var(--yellow);border-color:var(--yellow);
  box-shadow:0 0 0 5px rgba(251,188,4,.12),0 0 20px rgba(251,188,4,.28)}

.tl-card{position:relative;flex:1;margin-top:24px;padding:26px 24px 22px;border:1px solid var(--line);border-radius:4px;overflow:hidden;
  background:linear-gradient(180deg,rgba(24,24,31,.76),rgba(14,14,19,.8));-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  transition:border-color .45s,transform .45s var(--ease),box-shadow .45s}
.tl-card::before{content:'';position:absolute;left:0;top:0;height:2px;width:100%;background:var(--c);transform:scaleX(0);transform-origin:left;
  transition:transform .7s var(--ease) .1s}
.tl-stop.is-on .tl-card{border-color:color-mix(in srgb,var(--c) 32%,var(--line))}
.tl-stop.is-on .tl-card::before{transform:scaleX(1)}
.tl-kicker{display:block;font-size:9px;letter-spacing:1.8px;font-weight:700;color:var(--c);text-transform:uppercase;margin-bottom:14px}
.tl-stop[data-stop="4"] .tl-kicker{color:var(--yellow)}
.tl-card h3{font:400 30px/1.04 ArenaDisplay,Impact,sans-serif;text-transform:uppercase;letter-spacing:0;margin-bottom:14px}
.tl-card p{font-size:12px;line-height:1.7;color:var(--muted);white-space:pre-line}
.tl-card p.tl-note{margin-top:12px;font-size:10.5px;line-height:1.6;font-style:italic;color:rgba(255,255,255,.42);white-space:normal}

.tl-meta{display:flex;align-items:flex-end;justify-content:space-between;gap:14px;margin-top:22px;padding-top:18px;border-top:1px solid rgba(255,255,255,.07)}
.tl-count{display:flex;flex-direction:column;gap:6px}
.tl-count strong{font:400 46px/.85 ArenaDisplay,Impact,sans-serif;color:var(--c);font-variant-numeric:tabular-nums}
.tl-stop[data-stop="4"] .tl-count strong{color:var(--yellow)}
.tl-count span{font-size:8px;letter-spacing:1.6px;font-weight:700;color:var(--muted)}
.tl-dots{display:grid;grid-template-columns:repeat(10,7px);gap:4px;justify-content:end;align-content:end}
.tl-dots i{width:7px;height:7px;border-radius:1px;background:var(--c);opacity:.95}
.tl-dots.is-champ{grid-template-columns:repeat(1,30px)}
.tl-dots.is-champ i{width:30px;height:30px;border-radius:50%;background:radial-gradient(circle at 35% 30%,#fff3c4,var(--yellow) 55%,#b98800);
  box-shadow:0 0 22px rgba(251,188,4,.55)}

/* Bölüm sonu çağrısı */
.tl-foot{display:flex;align-items:center;justify-content:center;gap:24px;margin-top:44px}
.tl-foot .text-button{color:var(--white)}

/* Mobil gezinme (masaüstünde gizli) */
.tl-nav{display:none}

/* ---------- Hareket katmanı ---------- */
html.motion .tl-section.tl-js .tl-head>*{opacity:0;transform:translateY(22px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
html.motion .tl-section.is-in .tl-head>*{opacity:1;transform:none}
html.motion .tl-section.is-in .tl-head>*:nth-child(2){transition-delay:.12s}
html.motion .tl-section.tl-js .tl-funnel li{opacity:0;transform:translateY(10px);transition:opacity .5s,transform .5s var(--ease)}
html.motion .tl-section.is-in .tl-funnel li{opacity:1;transform:none}
html.motion .tl-section.is-in .tl-funnel li:nth-child(1){transition-delay:.25s}
html.motion .tl-section.is-in .tl-funnel li:nth-child(2){transition-delay:.35s}
html.motion .tl-section.is-in .tl-funnel li:nth-child(3){transition-delay:.45s}
html.motion .tl-section.is-in .tl-funnel li:nth-child(4){transition-delay:.55s}
html.motion .tl-section.is-in .tl-funnel li:nth-child(5){transition-delay:.65s}
html.motion .tl-section.is-in .tl-funnel li:nth-child(6){transition-delay:.75s}
html.motion .tl-section.is-in .tl-funnel li:nth-child(7){transition-delay:.85s}

html.motion .tl-aurora i:nth-child(1){animation:tl-drift-a 24s ease-in-out infinite alternate}
html.motion .tl-aurora i:nth-child(2){animation:tl-drift-b 28s ease-in-out infinite alternate}
html.motion .tl-aurora i:nth-child(3){animation:tl-drift-c 19s ease-in-out infinite alternate}
@keyframes tl-drift-a{from{transform:translate(0,0) scale(1)}to{transform:translate(14%,10%) scale(1.15)}}
@keyframes tl-drift-b{from{transform:translate(0,0) scale(1.05)}to{transform:translate(-12%,-8%) scale(.92)}}
@keyframes tl-drift-c{from{transform:translate(-10%,0) scale(.9);opacity:.03}to{transform:translate(12%,-12%) scale(1.15);opacity:.07}}
/* Durak yanınca ışık bir kez açılır; ray dolunca rayın parıltısı durağın üstünden
   geçtiği anda en parlak olacak şekilde (gecikme --d, timeline.js) nefes alır. */
html.motion .tl-glows i.is-on{animation:tl-bloom 1.2s var(--ease)}
@keyframes tl-bloom{0%{opacity:.08;transform:scale(.8)}60%{opacity:.6;transform:scale(1.04)}100%{transform:scale(1)}}
html.motion .tl.is-full .tl-glows i.is-on{animation:tl-breathe 6s ease-in-out var(--d,0s) infinite}
@keyframes tl-breathe{0%,100%{opacity:.56;transform:scale(1.03)}50%{opacity:.38;transform:scale(.98)}}
html.motion .tl.is-moving .tl-sweep{opacity:1}
html.motion .tl-rail-fill{transition:width .5s var(--ease)}
html.motion .tl-comet{transition:left .5s var(--ease),opacity .4s}
html.motion .tl.is-moving .tl-comet{opacity:1}
html.motion .tl.is-full .tl-rail-fill::after{opacity:.55;animation:tl-glint 6s linear infinite}
html.motion .tl-rail-fill::after{transition:opacity .6s}
@keyframes tl-glint{from{background-position:-120px 0}to{background-position:calc(100% + 120px) 0}}

html.motion .tl-stop .tl-card{opacity:.28;transform:translateY(26px) scale(.985)}
html.motion .tl-stop.is-on .tl-card{opacity:1;transform:none}
html.motion .tl-stop .tl-card{transition:opacity .7s var(--ease),transform .7s var(--ease),border-color .45s,box-shadow .45s}
html.motion .tl-stop.is-on .tl-node{animation:tl-pop .6s var(--ease)}
@keyframes tl-pop{0%{transform:scale(.7)}55%{transform:scale(1.14)}100%{transform:scale(1)}}
html.motion .tl-stop.is-current .tl-ring{animation:tl-pulse 2.2s ease-out infinite}
@keyframes tl-pulse{0%{opacity:.9;transform:scale(1)}100%{opacity:0;transform:scale(1.9)}}

html.motion .tl-dots i{opacity:.12;background:#8d92a4;transform:scale(.6);
  transition:opacity .35s,transform .35s var(--ease),background-color .35s;transition-delay:calc(var(--i) * 14ms + .25s)}
html.motion .tl-stop.is-on .tl-dots i{opacity:.95;background:var(--c);transform:none}
html.motion .tl-dots.is-champ i{opacity:.15;background:#3a3a48;box-shadow:none;transform:scale(.5) rotate(-90deg)}
html.motion .tl-stop.is-on .tl-dots.is-champ i{opacity:1;transform:none;
  background:radial-gradient(circle at 35% 30%,#fff3c4,var(--yellow) 55%,#b98800);box-shadow:0 0 14px rgba(251,188,4,.3);
  animation:tl-champ 2.6s ease-in-out 1s infinite}
@keyframes tl-champ{0%,100%{box-shadow:0 0 12px rgba(251,188,4,.25)}50%{box-shadow:0 0 20px rgba(251,188,4,.42)}}

@media (hover:hover){
  html.motion .tl-stop.is-on .tl-card:hover{transform:translateY(-6px);box-shadow:0 18px 40px rgba(0,0,0,.45),0 0 0 1px color-mix(in srgb,var(--c) 45%,transparent)}
  html.motion .tl-stop.is-on:hover .tl-node{transform:scale(1.08)}
}

/* ---------- Dar ekran ---------- */
@media (max-width:1100px){
  .tl-card{padding:22px 18px 18px}
  .tl-card h3{font-size:26px}
  .tl-list{gap:18px}
  .tl-funnel b{font-size:28px}
}
/* 900 px altı: yatay kaydırmalı akış. Ray şeritle birlikte kayar, kartlar birbirine
   bağlı kalır; sonraki kart kenardan görünür. */
@media (max-width:900px){
  .tl-section{padding-block:64px 58px}
  .tl-head{grid-template-columns:1fr;gap:26px;margin-bottom:38px}
  .tl-head h2{font-size:36px}
  .tl-funnel{padding-bottom:0}
  .tl-scroller{overflow-x:auto;overflow-y:hidden;scroll-snap-type:x mandatory;scroll-padding-inline:20px;overscroll-behavior-x:contain;
    margin:-24px -20px 0;padding:30px 20px 10px;scrollbar-width:none;-webkit-overflow-scrolling:touch}
  .tl-scroller::-webkit-scrollbar{display:none}
  .tl-lane{width:max-content}
  .tl-list{grid-template-columns:repeat(4,min(78vw,320px));gap:16px}
  .tl-stop{scroll-snap-align:start}
  .tl-card h3{font-size:28px}
  .tl-glows i{width:320px;height:320px;margin:-40px 0 0 -100px}
  .tl-sweep{width:200px;height:120px;margin:-60px 0 0 -100px}
  .tl-aurora i{filter:blur(60px)}
  .tl-nav{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:18px}
  .tl-arrows{order:-1}
  .tl-hint{order:2}
  .tl-steps{display:flex;gap:6px;flex:1;max-width:220px}
  .tl-steps button{flex:1;height:4px;min-height:0;padding:0;border:0;border-radius:2px;background:rgba(255,255,255,.14);cursor:pointer;position:relative}
  .tl-steps button::after{content:'';position:absolute;inset:-12px 0}
  .tl-steps button.is-on{background:var(--yellow)}
  .tl-arrows{display:flex;gap:8px}
  .tl-arrows button{width:42px;height:42px;display:grid;place-items:center;border:1px solid #3a3a48;border-radius:50%;background:#15151d;color:var(--white);font-size:16px;cursor:pointer}
  .tl-arrows button:disabled{opacity:.35;cursor:default}
  .tl-hint{font-size:9px;letter-spacing:1.6px;font-weight:700;color:var(--muted);white-space:nowrap}
  .tl-foot{margin-top:26px}
}
@media (max-width:900px){
  html.motion .tl-hint b{display:inline-block;animation:tl-hint 1.4s ease-in-out infinite}
  @keyframes tl-hint{0%,100%{transform:translateX(0)}50%{transform:translateX(6px)}}
}
@media (max-width:420px){
  .tl-head h2{font-size:32px}
  .tl-funnel{gap:10px}
  .tl-funnel ol{gap:10px}
  .tl-funnel b{font-size:24px}
  .tl-funnel i{font-size:14px;padding-bottom:14px}
}
/* 07.10.2026: "Kampanya koşulları" "Sen de arenaya katıl"ın solunda; ikincil
   (soluk) bağlantı, araya ince ayraç. Dar ekranda alt alta, ortalı. */
.tl-foot .tl-terms{color:#b8bccb;position:relative}
.tl-foot .tl-terms::after{content:"";position:absolute;right:-13px;top:50%;width:1px;height:18px;transform:translateY(-50%);background:#3a3a46}
.tl-foot .tl-terms:hover{color:var(--white)}
@media (max-width:520px){.tl-foot{flex-direction:column;gap:6px}.tl-foot .tl-terms::after{display:none}}