/* BiogenLab — tüm sayfalarda ortak stiller
   Sayfaya özel stiller her sayfanın kendi <style> bloğunda, bu dosyadan sonra yüklenir. */
:root{
  --purple:#4B3A8C;
  --purple-2:#5A4596;
  --purple-deep:#2C2257;      /* mor tonunun koyu varyantı: overlay ve derinlik için */
  --lavender:#C9C1E8;
  --ice:#9ED4EE;
  --ice-light:#EAF3FA;
  --white:#FFFFFF;
  --ink:#24232B;
  --ink-2:#696875;
  --neutral:#F6F7FA;
  --line:rgba(36,35,43,.12);
  --line-light:rgba(255,255,255,.18);

  --font:"Montserrat",ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  --font-display:var(--font);
  --ease:cubic-bezier(0.22,1,0.36,1);
  --t-hover:240ms;
  --t-text:700ms;
  --t-img:1000ms;

  --gutter:clamp(20px,4.4vw,72px);
  --max:1360px;
  --header-h:96px;
  --header-solid-h:76px;      /* beyaz (kaydırılmış) header yüksekliği; yapışkan öğeler de bunu kullanır */
  --section-y:clamp(72px,8vw,120px);
  --radius:4px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:76px}
body{margin:0;font-family:var(--font);font-size:15.5px;line-height:1.7;color:var(--ink);background:var(--white);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow-x:hidden}
img,video{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}
h1,h2,h3,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--purple);outline-offset:3px}
/* Koyu zeminlerde odak halkası açık renkte */
.on-dark :focus-visible,.hero :focus-visible,.footer :focus-visible,.header:not(.is-solid) :focus-visible{outline-color:var(--ice)}
body.menu-open .header :focus-visible{outline-color:var(--purple)}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:fixed;left:16px;top:-60px;z-index:200;background:var(--purple);color:#fff;padding:10px 16px;border-radius:var(--radius);transition:top .2s}
.skip:focus{top:16px}

.wrap{width:100%;max-width:var(--max);margin-inline:auto;padding-inline:var(--gutter)}

/* ---------- Tipografi ---------- */
.eyebrow{display:inline-block;font-size:11.5px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--purple)}
.on-dark .eyebrow{color:var(--ice)}
.h2{font-family:var(--font-display);font-size:clamp(26px,2.5vw,38px);line-height:1.18;font-weight:500;letter-spacing:-.025em;color:var(--ink);text-wrap:balance}
.on-dark .h2{color:#fff}
.lead{font-size:clamp(15.5px,1.05vw,17px);line-height:1.72;color:var(--ink-2);max-width:54ch;text-wrap:pretty}
.on-dark .lead{color:rgba(255,255,255,.78)}

/* ---------- Butonlar ---------- */
.btn{--bg:var(--purple);--fg:#fff;display:inline-flex;align-items:center;gap:14px;min-height:48px;padding:0 22px;background:var(--bg);color:var(--fg);border:1px solid var(--bg);border-radius:var(--radius);font-size:14.5px;font-weight:500;letter-spacing:.005em;transition:background-color var(--t-hover) var(--ease),color var(--t-hover) var(--ease),border-color var(--t-hover) var(--ease)}
.btn:hover{--bg:var(--purple-2)}
.btn .arrow{width:16px;height:16px;flex:none;transition:transform var(--t-hover) var(--ease)}
.btn:hover .arrow{transform:translateX(4px)}
.btn--light{--bg:#fff;--fg:var(--purple)}
.btn--light:hover{--bg:var(--ice-light)}
.btn--ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.45)}
.btn--ghost:hover{background:rgba(255,255,255,.08);border-color:#fff}
.link-arrow{display:inline-flex;align-items:center;gap:12px;font-size:14.5px;font-weight:500;color:var(--purple);padding-block:10px;border-bottom:1px solid currentColor;transition:color var(--t-hover) var(--ease),gap var(--t-hover) var(--ease)}
.link-arrow:hover{gap:18px;color:var(--purple-2)}
.link-arrow .arrow{width:16px;height:16px}
.on-dark .link-arrow{color:#fff}

/* ---------- Header ---------- */
.header{position:fixed;inset:0 0 auto;z-index:100;height:var(--header-h);display:flex;align-items:center;transition:background-color 350ms var(--ease),box-shadow 350ms var(--ease),height 350ms var(--ease)}
.header .wrap{display:flex;align-items:center;justify-content:space-between;gap:32px;max-width:none}
.logo{position:relative;display:block;width:184px;aspect-ratio:1294/451;flex:none}
.header .logo{transition:width 350ms var(--ease)}
.footer .logo{width:200px}
.logo img{position:absolute;inset:0;width:100%;height:100%;transition:opacity 300ms var(--ease)}
.logo .logo-color{opacity:0}
.nav{display:flex;align-items:center;gap:40px}
.nav > ul{display:flex;gap:34px}
.nav a.nav-link{position:relative;font-size:15px;font-weight:500;color:#fff;padding:8px 0;transition:color var(--t-hover) var(--ease)}
.nav a.nav-link::after{content:"";position:absolute;left:0;right:0;bottom:2px;height:1px;background:currentColor;transform:scaleX(0);transform-origin:right;transition:transform 280ms var(--ease)}
.nav a.nav-link:hover::after{transform:scaleX(1);transform-origin:left}
.nav a.nav-link[aria-current="page"]::after{transform:scaleX(1)}
.header .btn{min-height:44px;padding:0 20px;font-size:14.5px}
.nav-actions{display:flex;align-items:center;gap:10px}
/* Dil menüsü */
.flag{display:inline-block;flex:none;width:20px;height:14px;border-radius:2px;overflow:hidden;box-shadow:0 0 0 1px rgba(0,0,0,.12)}
.flag svg{display:block;width:100%;height:100%}
.lang{position:relative}
.lang-btn{display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 12px;border:1px solid rgba(255,255,255,.4);border-radius:var(--radius);font-size:13px;font-weight:600;letter-spacing:.06em;color:#fff;transition:border-color var(--t-hover) var(--ease),background-color var(--t-hover) var(--ease),color var(--t-hover) var(--ease)}
.lang-btn:hover,.lang.is-open .lang-btn{border-color:#fff;background:rgba(255,255,255,.08)}
.lang-btn .chev{width:12px;height:12px;transition:transform 280ms var(--ease)}
.lang.is-open .lang-btn .chev{transform:rotate(180deg)}
.lang-list{position:absolute;top:calc(100% + 10px);right:0;min-width:200px;padding:6px;background:#fff;border-radius:6px;box-shadow:0 0 0 1px rgba(36,35,43,.06),0 24px 48px -20px rgba(29,22,58,.45);opacity:0;visibility:hidden;transform:translateY(-6px);transition:opacity 220ms var(--ease),transform 220ms var(--ease),visibility 0s 220ms}
.lang.is-open .lang-list{opacity:1;visibility:visible;transform:none;transition-delay:0s}
.lang-list a{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:4px;font-size:14px;font-weight:500;color:var(--ink);transition:background-color var(--t-hover) var(--ease),color var(--t-hover) var(--ease)}
.lang-list a:hover,.lang-list a:focus-visible{background:var(--neutral);color:var(--purple)}
.lang-list .lang-code{margin-left:auto;font-size:11px;font-weight:600;letter-spacing:.1em;color:var(--ink-2)}
.lang-list a[aria-current]{background:var(--ice-light);color:var(--purple)}
/* Henüz yayında olmayan dil sürümleri */
.lang-list .is-soon{display:flex;align-items:center;gap:12px;padding:10px 12px;font-size:14px;font-weight:500;color:var(--ink-2);cursor:default}
.lang-list .is-soon .flag{opacity:.55}
.lang-list .is-soon .lang-code{margin-left:auto;font-size:10.5px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-2)}
.lang-list a[aria-current] .lang-code{color:var(--purple)}
.header.is-solid .lang-btn{color:var(--ink);border-color:var(--line)}
.header.is-solid .lang-btn:hover,.header.is-solid .lang.is-open .lang-btn{border-color:var(--purple);background:transparent;color:var(--purple)}
.header .btn{--bg:#fff;--fg:var(--purple)}
.header .btn:hover{--bg:var(--ice-light)}
/* Hero geçildiğinde: beyaz, kompakt ve her zaman görünür */
.header.is-solid{height:var(--header-solid-h);background:rgba(255,255,255,.96);-webkit-backdrop-filter:saturate(1.4) blur(14px);backdrop-filter:saturate(1.4) blur(14px);box-shadow:0 1px 0 var(--line),0 12px 32px -24px rgba(36,35,43,.35)}
.header.is-solid .logo{width:150px}
.header.is-solid .logo-white{opacity:0}
.header.is-solid .logo-color{opacity:1}
.header.is-solid .nav a.nav-link{color:var(--ink)}
.header.is-solid .nav a.nav-link:hover{color:var(--purple)}
.header.is-solid .btn{--bg:var(--purple);--fg:#fff}
.header.is-solid .btn:hover{--bg:var(--purple-2)}
.menu-toggle{display:none;width:44px;height:44px;align-items:center;justify-content:center;margin-right:-10px}
.menu-toggle span{position:relative;display:block;width:22px;height:1.5px;background:#fff;transition:background-color .2s}
.menu-toggle span::before,.menu-toggle span::after{content:"";position:absolute;left:0;width:22px;height:1.5px;background:#fff;transition:transform 300ms var(--ease),top 300ms var(--ease),background-color .2s}
.menu-toggle span::before{top:-7px}.menu-toggle span::after{top:7px}
.header.is-solid .menu-toggle span,.header.is-solid .menu-toggle span::before,.header.is-solid .menu-toggle span::after{background:var(--ink)}

.mobile-menu{position:fixed;inset:0;z-index:99;background:#fff;padding:calc(var(--header-h) + 24px) var(--gutter) 32px;display:flex;flex-direction:column;justify-content:space-between;visibility:hidden;opacity:0;transform:translateY(-8px);transition:opacity 350ms var(--ease),transform 450ms var(--ease),visibility 0s 450ms}
.mobile-menu nav li{border-bottom:1px solid var(--line)}
.mobile-menu nav a{display:flex;justify-content:space-between;align-items:center;padding:18px 0;font-family:var(--font-display);font-size:24px;font-weight:500;letter-spacing:-.025em;color:var(--ink)}
.mobile-menu nav a span{font-size:12px;color:var(--ink-2);letter-spacing:.1em}
.mobile-menu .mm-foot{display:grid;gap:18px;font-size:15px;color:var(--ink-2)}
.mm-lang{display:flex;flex-wrap:wrap;gap:8px}
.mm-lang a,.mm-lang .is-soon{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border:1px solid var(--line);border-radius:var(--radius);font-size:12.5px;font-weight:600;letter-spacing:.06em;color:var(--ink)}
.mm-lang .is-soon{color:var(--ink-2);opacity:.6}
.mm-lang a[aria-current]{border-color:var(--purple);background:var(--ice-light);color:var(--purple)}
.mobile-menu .btn{justify-content:space-between;width:100%}
body.menu-open{overflow:hidden}
body.menu-open .mobile-menu{visibility:visible;opacity:1;transform:none;transition-delay:0s}
body.menu-open .header{background:#fff;box-shadow:none}
body.menu-open .header .logo-white{opacity:0}
body.menu-open .header .logo-color{opacity:1}
body.menu-open .menu-toggle span{background:transparent!important}
body.menu-open .menu-toggle span::before{top:0;transform:rotate(45deg);background:var(--ink)}
body.menu-open .menu-toggle span::after{top:0;transform:rotate(-45deg);background:var(--ink)}

/* ---------- Footer ---------- */
.footer{background:var(--purple-deep);color:rgba(255,255,255,.75);font-size:14px}
.footer-top{display:grid;grid-template-columns:minmax(0,1.3fr) repeat(3,minmax(0,1fr));gap:40px;padding-block:clamp(64px,7vw,96px) 56px}
.footer .brand p{margin-top:18px;font-size:13.5px;color:rgba(255,255,255,.6);max-width:30ch}
.footer h4{margin:0 0 16px;font-size:10.5px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--lavender)}
.footer li+li{margin-top:10px}
.footer a{transition:color var(--t-hover)}
.footer a:hover{color:#fff}
.footer address{font-style:normal;line-height:1.6}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12)}
.footer-bottom .wrap{display:grid;grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);align-items:center;gap:16px 28px;padding-block:22px;font-size:12.5px;color:rgba(255,255,255,.5)}
/* Sosyal medya: platform simgeleriyle */
.footer .social a{display:inline-flex;align-items:center;gap:10px}
.footer .social svg{flex:none;width:18px;height:18px;color:var(--ice)}
/* Yasal metinler: sosyal medya sütununun altında */
.footer .legal-links{margin-top:22px;padding-top:18px;border-top:1px solid rgba(255,255,255,.12);font-size:13px}
.footer .legal-links li+li{margin-top:8px}
.footer .legal-links a{color:rgba(255,255,255,.6)}
.footer .legal-links a:hover{color:#fff}
/* Alt satır: telif solda, Digitalix ortada, başa dön sağda */
.made-by{display:inline-flex;align-items:center;justify-self:center;padding-block:10px;opacity:.75;transition:opacity var(--t-hover) var(--ease)}
.made-by:hover{opacity:1}
.made-by img{width:auto;height:20px}
.to-top{display:inline-flex;align-items:center;gap:8px;justify-self:end}
.to-top svg{width:14px;height:14px;transform:rotate(-90deg)}

/* ---------- Kırık görsel güvencesi ---------- */
.img-failed{background:linear-gradient(135deg,var(--ice-light),var(--lavender))!important}
.img-failed img{opacity:0}

/* ---------- Animasyonlar ---------- */
.js .reveal{opacity:0;transform:translateY(22px);transition:opacity var(--t-text) var(--ease),transform var(--t-text) var(--ease)}
.js .reveal.is-in{opacity:1;transform:none}
.js .reveal[data-delay="1"]{transition-delay:90ms}
.js .reveal[data-delay="2"]{transition-delay:180ms}
.js .reveal[data-delay="3"]{transition-delay:270ms}
/* Kapsayıcı kırpılmaz: clip-path kapsayıcıyı gizlerse IntersectionObserver ve lazy-load tetiklenmez */
.js .reveal-img img{opacity:0;transform:scale(1.06);transition:opacity var(--t-img) var(--ease),transform 1400ms var(--ease)}
.js .reveal-img.is-in img{opacity:1;transform:scale(1)}
.js .reveal-img img[data-parallax]{transition:opacity var(--t-img) var(--ease)}
[data-parallax]{will-change:transform}

/* ---------- Responsive ---------- */
@media (max-width:1180px){
  .nav > ul{gap:24px}.nav{gap:28px}
}
@media (max-width:980px){
  :root{--header-h:80px;--header-solid-h:68px}
  .logo{width:150px}
  .header.is-solid .logo{width:128px}
  .nav > ul,.nav .nav-actions{display:none}
  .menu-toggle{display:inline-flex}
  .footer-top{grid-template-columns:1fr 1fr}
  .footer .brand{grid-column:1/-1}
}
@media (max-width:640px){
  body{font-size:15px}
  .wrap{padding-inline:20px}
  :root{--gutter:20px;--section-y:64px}
  .footer-top{grid-template-columns:1fr;gap:36px}
  .footer-bottom .wrap{grid-template-columns:1fr;justify-items:center;text-align:center}
  .to-top{justify-self:center}
}

/* ---------- Mobil dokunma alanları ve okunabilirlik ---------- */
@media (max-width:980px){
  /* Footer bağlantıları: en az ~40px dokunma yüksekliği */
  .footer li+li{margin-top:0}
  .footer li a{display:inline-flex;align-items:center;min-height:40px}
  .footer address{padding-block:8px}
  .footer .legal-links li+li{margin-top:0}
  /* Yol bilgisi: görünümü değiştirmeden dokunma alanı büyür */
  .crumbs a{display:inline-block;padding-block:10px;margin-block:-10px}
  .to-top{min-height:40px}
}
@media (max-width:640px){
  .footer h4{font-size:12px}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
  .js .reveal{opacity:1;transform:none}
  .js .reveal-img img{opacity:1;transform:none}
}