/* Fermat Eğitim Kurumları — shared design system (dark / sci-fi) */
:root{
  --bg:#08080b;--bg2:#0d0d12;--panel:rgba(20,20,26,.55);--panel-solid:#12121a;
  --fg:#f2f2f5;--dim:#9a9aa6;--line:rgba(255,255,255,.09);
  --accent:#ff2b41;--accent-2:#ff6274;--accent-deep:#b3000f;
  --radius:16px;--maxw:1180px;
  --shadow:0 20px 60px rgba(0,0,0,.5);
  --plate:#f5f2ec; /* light plate for the corporate logo on dark bg */
  --font:'Inter',system-ui,-apple-system,'Segoe UI',sans-serif;
  --display:'Sora','Inter',sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font);background:var(--bg);color:var(--fg);line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
h1,h2,h3,h4{font-family:var(--display);letter-spacing:-.02em;line-height:1.08;font-weight:800}
h1{font-size:clamp(38px,6vw,78px)}
h2{font-size:clamp(28px,4.2vw,50px)}
h3{font-size:20px}
p{color:#d5d5db}
.container{max-width:var(--maxw);margin:0 auto;padding:0 26px}
.dim{color:var(--dim)}
.accent{color:var(--accent)}
.eyebrow{display:inline-flex;align-items:center;gap:9px;font-size:12px;font-weight:700;letter-spacing:.18em;text-transform:uppercase;color:var(--accent);margin-bottom:18px}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--accent)}
.btn{display:inline-flex;align-items:center;gap:9px;font-weight:600;font-size:15px;padding:14px 26px;border-radius:40px;transition:.25s;cursor:pointer;border:1px solid transparent}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 10px 38px rgba(255,43,65,.32)}
.btn-accent:hover{transform:translateY(-2px);box-shadow:0 16px 50px rgba(255,43,65,.5)}
.btn-ghost{border-color:var(--line);color:var(--fg);background:rgba(255,255,255,.03);backdrop-filter:blur(6px)}
.btn-ghost:hover{background:rgba(255,255,255,.08);transform:translateY(-1px)}

/* layered background */
#bg{position:fixed;inset:0;z-index:0;pointer-events:none}
.grain{position:fixed;inset:0;z-index:1;pointer-events:none;opacity:.045;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}
.vignette{position:fixed;inset:0;z-index:1;pointer-events:none;background:radial-gradient(circle at 50% 38%,transparent 52%,rgba(0,0,0,.6) 100%)}
main{position:relative;z-index:2}

#prog{position:fixed;top:0;left:0;height:2px;width:0;background:linear-gradient(90deg,var(--accent),var(--accent-2));z-index:60}

/* header */
header{position:fixed;top:0;left:0;right:0;z-index:50;transition:.3s}
header.scrolled{background:rgba(8,8,11,.62);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:74px;gap:16px}
.logo{display:inline-flex;align-items:center;gap:10px}
.logo .plate{display:inline-flex;align-items:center}
.logo .plate img{height:44px;width:auto}
.logo .fallback{display:flex;flex-direction:column;line-height:1;font-family:Georgia,'Times New Roman',serif;font-weight:700;color:#f2f2f5;font-size:21px;letter-spacing:0}
.logo .fallback small{font-family:'Inter',sans-serif;font-size:7.5px;letter-spacing:.34em;color:#d33;font-weight:700;margin-top:4px}
.menu{display:flex;gap:2px;list-style:none;align-items:center}
.menu>li{position:relative}
.menu>li>a,.menu>li>.top{display:inline-flex;align-items:center;gap:5px;padding:9px 14px;border-radius:30px;font-size:14.5px;font-weight:500;color:var(--dim);transition:.2s;cursor:pointer}
.menu>li>a:hover,.menu>li>.top:hover,.menu>li>a.active{color:#fff;background:rgba(255,255,255,.06)}
.drop{position:absolute;top:calc(100% + 8px);left:0;min-width:230px;background:rgba(16,16,22,.96);backdrop-filter:blur(14px);border:1px solid var(--line);border-radius:16px;padding:8px;opacity:0;visibility:hidden;transform:translateY(8px);transition:.2s;list-style:none}
.menu>li:hover .drop{opacity:1;visibility:visible;transform:none}
.drop a{display:block;padding:10px 13px;border-radius:10px;font-size:14px;color:var(--dim);transition:.15s}
.drop a:hover{background:rgba(255,255,255,.06);color:#fff;padding-left:17px}
.nav-cta{display:flex;align-items:center;gap:10px}
.hamburger{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:8px}
.hamburger span{width:24px;height:2px;background:#fff;border-radius:2px;transition:.25s}
.mmenu{display:none;position:fixed;inset:74px 0 0;background:rgba(8,8,11,.97);backdrop-filter:blur(10px);z-index:49;padding:22px 26px;overflow:auto}
.mmenu.open{display:block}
.mmenu a{display:block;padding:15px 4px;font-size:17px;font-weight:600;border-bottom:1px solid var(--line);color:#eee}
.mmenu .sub a{font-size:15px;font-weight:400;color:var(--dim);padding-left:16px}

/* sections */
section{position:relative;padding:110px 0}
.page-hero{padding:170px 0 90px;position:relative}
.page-hero .crumb{color:var(--dim);font-size:13px;margin-bottom:18px}
.page-hero .crumb a:hover{color:#fff}
.page-hero h1{max-width:900px}
.page-hero .sub{font-size:19px;max-width:620px;margin:24px 0 32px;color:#c9c9d2}
.hero-home{min-height:100vh;min-height:100svh;display:flex;align-items:center;padding:120px 0 90px}
.hero-home .k{max-width:940px}
.hero-home h1 .ln{display:block;overflow:hidden}
.hero-home h1 .ln>span{display:block;transform:translateY(106%);animation:rise .9s cubic-bezier(.2,.7,.2,1) forwards}
.hero-home h1 .ln:nth-child(2)>span{animation-delay:.1s}
.hero-home h1 .ln:nth-child(3)>span{animation-delay:.2s}
@keyframes rise{to{transform:none}}
.hero-home .sub{font-size:19px;max-width:560px;margin:28px 0 34px;opacity:0;animation:fade 1s .5s forwards}
.hero-home .ctas{display:flex;gap:14px;flex-wrap:wrap;opacity:0;animation:fade 1s .7s forwards}
@keyframes fade{to{opacity:1}}
.scrollcue{position:absolute;bottom:34px;left:50%;transform:translateX(-50%);color:var(--dim);font-size:11px;letter-spacing:.2em;text-transform:uppercase;display:flex;flex-direction:column;align-items:center;gap:10px;opacity:0;animation:fade 1s 1.1s forwards}
.scrollcue .line{width:1px;height:42px;background:linear-gradient(var(--accent),transparent);animation:cue 2s infinite}
@keyframes cue{0%,100%{opacity:.3}50%{opacity:1}}

.panel{background:var(--panel);border:1px solid var(--line);border-radius:24px;backdrop-filter:blur(16px);padding:56px}
.shead{max-width:730px;margin-bottom:50px}
.shead h2{margin-bottom:16px}
.shead p{font-size:18px;color:var(--dim)}

.manifesto{font-family:var(--display);font-weight:700;font-size:clamp(24px,3.4vw,42px);line-height:1.26;max-width:960px;letter-spacing:-.02em}
.manifesto b{color:var(--accent)}
.manifesto .muted{color:var(--dim)}

/* stats */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:20px;overflow:hidden}
.stat{background:rgba(12,12,16,.6);padding:36px 24px;text-align:center}
.stat .n{font-family:var(--display);font-size:clamp(34px,4.4vw,54px);font-weight:800;line-height:1;background:linear-gradient(180deg,#fff,#9a9aa6);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.stat .n .u{color:var(--accent);-webkit-text-fill-color:var(--accent)}
.stat .t{color:var(--dim);font-size:13.5px;margin-top:11px}

/* feature grid */
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.f{padding:30px;border:1px solid var(--line);border-radius:18px;background:rgba(14,14,18,.5);transition:.3s}
.f:hover{border-color:rgba(255,43,65,.5);background:rgba(22,15,17,.6);transform:translateY(-4px)}
.f .ic{width:46px;height:46px;border-radius:12px;background:rgba(255,43,65,.12);display:grid;place-items:center;font-size:20px;margin-bottom:18px}
.f h3{margin-bottom:8px}
.f p{color:var(--dim);font-size:14.5px}

/* split */
.split{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}
.chips{list-style:none;display:grid;gap:13px;margin-top:20px}
.chips li{display:flex;gap:13px;align-items:flex-start;font-size:15.5px}
.chips .c{width:24px;height:24px;border-radius:50%;background:rgba(255,43,65,.15);color:var(--accent);display:grid;place-items:center;font-size:12px;font-weight:800;flex-shrink:0;margin-top:2px}

/* orbit visual */
.orbit{aspect-ratio:1;border-radius:24px;border:1px solid var(--line);background:radial-gradient(circle at 50% 45%,rgba(255,43,65,.16),transparent 60%),rgba(10,10,14,.5);position:relative;overflow:hidden;display:grid;place-items:center}
.orbit .core{width:120px;height:120px;border-radius:50%;border:1px solid rgba(255,43,65,.4);display:grid;place-items:center;font-family:var(--display);font-weight:800;color:#fff;position:relative;animation:spin 20s linear infinite}
.orbit .core::before,.orbit .core::after{content:"";position:absolute;border:1px solid rgba(255,255,255,.08);border-radius:50%}
.orbit .core::before{inset:-24px}
.orbit .core::after{inset:-50px;border-color:rgba(255,43,65,.16)}
@keyframes spin{to{transform:rotate(360deg)}}
.orbit .node{position:absolute;width:9px;height:9px;border-radius:50%;background:var(--accent);box-shadow:0 0 16px var(--accent)}

/* rank list */
.rank{list-style:none;display:grid;gap:12px}
.rank li{display:flex;justify-content:space-between;padding:16px 20px;border:1px solid var(--line);border-radius:14px;background:rgba(14,14,18,.5);font-weight:600}
.rank li b{color:var(--accent);font-family:var(--display)}

/* basarilar interactive */
.ba-wrap{display:grid;grid-template-columns:250px 1fr;gap:34px;align-items:start}
.ba-side{border:1px solid var(--line);border-radius:18px;padding:16px;position:sticky;top:94px;background:rgba(14,14,18,.55)}
.ba-side .grp{font-size:11px;text-transform:uppercase;letter-spacing:.08em;color:var(--dim);font-weight:700;margin:6px 8px 8px}
.cat-btn{display:flex;justify-content:space-between;align-items:center;width:100%;text-align:left;padding:11px 13px;border-radius:11px;border:none;background:none;cursor:pointer;font-size:14.5px;font-weight:600;color:var(--dim);transition:.18s}
.cat-btn:hover{background:rgba(255,255,255,.05);color:#fff}
.cat-btn.active{background:var(--accent);color:#fff}
.cat-btn .c{font-size:11px;background:rgba(255,255,255,.14);padding:1px 8px;border-radius:20px}
.years{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:26px}
.yr{padding:9px 16px;border-radius:11px;border:1px solid var(--line);background:rgba(255,255,255,.02);color:var(--fg);cursor:pointer;font-weight:700;font-size:14px;transition:.18s}
.yr:hover{border-color:var(--accent-2)}
.yr.active{background:var(--accent);color:#fff;border-color:var(--accent)}
.ba-head h3{font-size:26px;margin-bottom:8px}
.ba-head p{color:var(--dim);margin-bottom:22px;max-width:640px}
.rank-tab{width:100%;border-collapse:collapse;border:1px solid var(--line);border-radius:14px;overflow:hidden;margin-bottom:26px}
.rank-tab th{background:rgba(255,255,255,.04);text-align:left;padding:14px 18px;font-size:12px;text-transform:uppercase;letter-spacing:.05em;color:var(--dim)}
.rank-tab td{padding:14px 18px;border-top:1px solid var(--line);font-weight:600}
.rank-tab td:last-child{color:var(--accent);text-align:right;font-weight:800}
.champs{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.champ{display:flex;align-items:center;gap:11px;padding:12px 14px;border:1px solid var(--line);border-radius:12px;font-size:14px;font-weight:600;background:rgba(14,14,18,.5);transition:.2s}
.champ:hover{border-color:var(--accent);transform:translateY(-2px)}
.champ .chk{width:20px;height:20px;border-radius:50%;background:rgba(61,220,132,.14);color:#3ddc84;display:grid;place-items:center;font-size:11px;flex-shrink:0}
.champ .who small{display:block;color:var(--dim);font-size:12px;font-weight:400}
.note{font-size:12.5px;color:#d8c48a;background:rgba(120,90,20,.18);border:1px solid rgba(210,180,90,.35);border-radius:11px;padding:9px 13px;margin-bottom:16px;display:inline-flex;gap:6px}

/* blog */
.posts{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.post{border:1px solid var(--line);border-radius:18px;overflow:hidden;background:rgba(14,14,18,.5);transition:.3s;display:flex;flex-direction:column}
.post:hover{transform:translateY(-4px);border-color:rgba(255,43,65,.4)}
.post .thumb{aspect-ratio:16/9;background:linear-gradient(135deg,#16161d,#0d0d12);position:relative;overflow:hidden;display:grid;place-items:center;font-family:var(--display);font-size:34px;color:rgba(255,43,65,.5)}
.post .thumb .tag{position:absolute;top:12px;left:12px;font-size:11px;font-weight:700;background:var(--accent);color:#fff;padding:4px 10px;border-radius:20px}
.post .body{padding:22px;flex:1;display:flex;flex-direction:column}
.post .meta{font-size:12px;color:var(--dim);margin-bottom:9px}
.post h3{font-size:18px;margin-bottom:9px;line-height:1.25}
.post p{color:var(--dim);font-size:14px;flex:1}
.post .go{margin-top:14px;font-weight:600;font-size:14px;color:var(--accent)}

/* article */
.article{max-width:760px;margin:0 auto}
.article h2{font-size:28px;margin:38px 0 14px}
.article h3{font-size:21px;margin:28px 0 10px}
.article p{margin-bottom:16px;font-size:16.5px;color:#d5d5db}
.article ul{margin:0 0 18px 20px;color:#d5d5db}
.article li{margin-bottom:8px}
.article .kv{border-left:2px solid var(--accent);padding:10px 18px;color:#e7e7ee;font-style:italic;margin:22px 0;background:rgba(255,43,65,.05)}

/* info */
.info{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.info .box{padding:28px;border:1px solid var(--line);border-radius:18px;background:rgba(14,14,18,.5)}
.info .box .ic{font-size:22px;margin-bottom:12px}
.info .box h3{font-size:16px;margin-bottom:8px}
.info .box p{color:var(--dim);font-size:14.5px}
.info .box a{color:#fff;font-weight:700}

/* cta */
.cta .panel{padding:70px 40px;text-align:center;background:radial-gradient(circle at 50% 0%,rgba(255,43,65,.15),transparent 62%),var(--panel)}
.cta h2{margin-bottom:14px}
.cta p{color:var(--dim);max-width:520px;margin:0 auto 28px;font-size:17px}

/* footer */
footer{position:relative;z-index:2;border-top:1px solid var(--line);padding:60px 0 34px;color:var(--dim)}
.fgrid{display:flex;justify-content:space-between;flex-wrap:wrap;gap:32px;margin-bottom:36px}
.fgrid .col{min-width:150px}
.fgrid .col a{display:block;color:var(--dim);padding:5px 0;font-size:14.5px;transition:.2s}
.fgrid .col a:hover{color:#fff;padding-left:3px}
.fgrid h4{color:#fff;font-size:12.5px;text-transform:uppercase;letter-spacing:.06em;margin-bottom:14px}
.fbrand{max-width:290px}
.social{display:flex;gap:9px;margin-top:16px}
.social a{display:grid;place-items:center;color:#c9c9c9;padding:4px;transition:.2s}
.social a:hover{color:var(--accent);transform:translateY(-2px)}
.social a svg{width:21px;height:21px;display:block}
.fbot{border-top:1px solid var(--line);padding-top:22px;font-size:13px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}

/* reveal */
.reveal{opacity:0;transform:translateY(38px);transition:opacity .9s cubic-bezier(.2,.7,.2,1),transform .9s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}
[data-par]{will-change:transform}

@media(prefers-reduced-motion:reduce){*{animation:none!important}.reveal{opacity:1;transform:none}#bg{opacity:.35}}
@media(max-width:900px){
  .menu,.nav-cta .btn-ghost{display:none}
  .hamburger{display:flex}
  .stats{grid-template-columns:1fr 1fr}
  .grid3,.grid2,.split,.ba-wrap,.info,.posts,.champs{grid-template-columns:1fr}
  .panel{padding:34px 24px}
  section{padding:80px 0}
  .ba-side{position:static}
}
@media(max-width:560px){.stats{grid-template-columns:1fr 1fr}.champs{grid-template-columns:1fr}}

/* neural IEPA visual */
.orbit.neural{position:relative;overflow:hidden}
.orbit.neural canvas{position:absolute;inset:0;width:100%!important;height:100%!important;display:block}
.core-label{position:relative;z-index:2;font-family:'Sora';font-weight:800;font-size:22px;letter-spacing:.18em;color:#fff;text-shadow:0 0 28px rgba(255,43,65,.95),0 0 60px rgba(255,43,65,.5);pointer-events:none}
/* blueprint diagram */
.bp{display:grid;gap:10px;margin-top:10px}
.bp-row{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.bp-box{border:1px dashed rgba(255,255,255,.28);border-radius:14px;padding:20px;background:rgba(14,14,18,.55);transition:.25s}
.bp-box:hover{border-color:var(--accent);transform:translateY(-2px)}
.bp-box h4{font-size:12.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--accent);margin-bottom:8px;font-family:'Sora'}
.bp-box p{font-size:13.5px;color:var(--dim)}
.bp-arrow{text-align:center;color:var(--accent);font-size:22px;line-height:1;opacity:.8}
.bp-tag{display:inline-block;font-size:11px;border:1px solid var(--line);padding:3px 9px;border-radius:16px;color:#b9b9c2;margin:6px 4px 0 0}
.pub{display:flex;flex-direction:column;gap:6px}
.pub .doi{font-size:12.5px;color:var(--accent);font-family:monospace}
@media(max-width:900px){.bp-row{grid-template-columns:1fr}}

/* responsive hardening */
/* touch: dropdown opens on tap (JS toggles .open) */
.menu>li.open .drop{opacity:1;visibility:visible;transform:none}
/* tablet: tighten nav so 7 items + logo + CTA fit 901-1120px */
@media(max-width:1120px) and (min-width:901px){
  .menu>li>a,.menu>li>.top{padding:8px 9px;font-size:13.5px}
  .logo .plate img{height:36px}
  .nav-cta .btn{padding:10px 16px;font-size:14px}
}
/* tablet: 3-col grids to 2-col before collapsing */
@media(max-width:1024px) and (min-width:901px){
  .grid3,.posts,.info{grid-template-columns:repeat(2,1fr)}
  .bp-row{grid-template-columns:repeat(2,1fr)}
}
/* small screens: tables scroll instead of overflow */
@media(max-width:560px){
  .rank-tab{display:block;overflow-x:auto;-webkit-overflow-scrolling:touch}
  .hero-home{padding:100px 0 70px}
  h1{font-size:clamp(32px,9vw,44px)}
  .panel{padding:28px 18px}
  .btn{padding:13px 20px;font-size:14.5px}
  .years{gap:6px}
  .orbit{max-width:100%;aspect-ratio:1}
  .core-label{font-size:18px}
}
/* safe areas (iPhone notch) */
.mmenu{padding-bottom:calc(24px + env(safe-area-inset-bottom))}
footer{padding-bottom:calc(34px + env(safe-area-inset-bottom))}
/* prevent accidental horizontal scroll everywhere */
html,body{max-width:100%;overflow-x:hidden}
/* larger tap targets in mobile menu */
.mmenu a{min-height:48px;display:flex;align-items:center}