/* YOLO Academic — unified light theme */
:root {
  --bg:#f3f6fb;
  --card:#ffffff;
  --text:#0f172a;
  --muted:#667085;
  --line:#e5e7eb;
  --accent:#2563eb;
  --accent2:#0ea5e9;
  --good:#16a34a;
  --warn:#f59e0b;
  --shadow: 0 10px 25px rgba(17,24,39,.08);
  --radius: 18px;
}
*{box-sizing:border-box;}
html,body{height:100%;}
body{margin:0;font-family:"Poppins",system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;background:var(--bg);color:var(--text);}
a{color:inherit;}
.container{max-width:1100px;margin:0 auto;padding:18px;}
.muted{color:var(--muted);}
.small{font-size:12px;}
.row{display:flex;align-items:center;gap:10px;}
.wrap{flex-wrap:wrap;}
.stack{display:flex;flex-direction:column;gap:14px;}
.grid{display:grid;grid-template-columns:repeat(12,1fr);gap:14px;}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px;}

/* Nav */
.nav{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);}
.nav-inner{max-width:1100px;margin:0 auto;padding:10px 18px;display:flex;align-items:center;justify-content:space-between;gap:14px;}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;}
.brand .logo{width:34px;height:34px;border-radius:10px;background:var(--accent);background-image:url("yolo-mark.svg");background-repeat:no-repeat;background-position:center;background-size:contain;box-shadow:none;}
.brand-text{display:flex;flex-direction:column;line-height:1.05;}
.brand-name{font-weight:700;letter-spacing:.2px;}
.brand-sub{font-size:12px;color:var(--muted);}
.tabs{display:flex;gap:10px;align-items:center;flex-wrap:wrap;}
.tab{text-decoration:none;color:var(--muted);padding:8px 12px;border-radius:999px;border:1px solid transparent;}
.tab:hover{background:rgba(37,99,235,.06);color:var(--text);}
.tab.active{background:#fff;color:var(--text);border:1px solid var(--line);box-shadow:0 8px 18px rgba(17,24,39,.06);}

.lang-toggle{position:relative;padding:8px 12px 8px 40px;border-radius:999px;border:1px solid var(--line);background:#fff;color:var(--text);cursor:pointer;box-shadow:0 8px 18px rgba(17,24,39,.06);}
.lang-toggle::before{content:"";position:absolute;left:12px;top:50%;transform:translateY(-50%);width:18px;height:12px;border-radius:2px;box-shadow:0 0 0 1px rgba(0,0,0,.08);background-size:cover;background-repeat:no-repeat;}
.lang-toggle[data-next="en"]::before{background-image:url("data:image/svg+xml,%3Csvg%20xmlns%3D%27http%3A//www.w3.org/2000/svg%27%20width%3D%2724%27%20height%3D%2716%27%20viewBox%3D%270%200%2024%2016%27%3E%0A%3Crect%20width%3D%2724%27%20height%3D%2716%27%20fill%3D%27%23012169%27/%3E%0A%3Cpath%20d%3D%27M0%2C0%20L24%2C16%20M24%2C0%20L0%2C16%27%20stroke%3D%27%23fff%27%20stroke-width%3D%274%27/%3E%0A%3Cpath%20d%3D%27M0%2C0%20L24%2C16%20M24%2C0%20L0%2C16%27%20stroke%3D%27%23C8102E%27%20stroke-width%3D%272%27/%3E%0A%3Crect%20x%3D%2710%27%20width%3D%274%27%20height%3D%2716%27%20fill%3D%27%23fff%27/%3E%0A%3Crect%20y%3D%276%27%20width%3D%2724%27%20height%3D%274%27%20fill%3D%27%23fff%27/%3E%0A%3Crect%20x%3D%2711%27%20width%3D%272%27%20height%3D%2716%27%20fill%3D%27%23C8102E%27/%3E%0A%3Crect%20y%3D%277%27%20width%3D%2724%27%20height%3D%272%27%20fill%3D%27%23C8102E%27/%3E%0A%3C/svg%3E");}
.lang-toggle[data-next="tr"]::before{background-image:url("data:image/svg+xml,%3Csvg%20xmlns%3D%27http%3A//www.w3.org/2000/svg%27%20width%3D%2724%27%20height%3D%2716%27%20viewBox%3D%270%200%2024%2016%27%3E%0A%3Crect%20width%3D%2724%27%20height%3D%2716%27%20fill%3D%27%23E30A17%27/%3E%0A%3Ccircle%20cx%3D%2710%27%20cy%3D%278%27%20r%3D%275%27%20fill%3D%27%23fff%27/%3E%0A%3Ccircle%20cx%3D%2711.5%27%20cy%3D%278%27%20r%3D%274%27%20fill%3D%27%23E30A17%27/%3E%0A%3Cpolygon%20points%3D%2715%2C8%2018%2C6.9%2016.7%2C9.8%2018%2C12.6%2015%2C11.4%2013.3%2C12.6%2014.1%2C10.4%2012.3%2C9.2%2014.5%2C9.2%27%20fill%3D%27%23fff%27/%3E%0A%3C/svg%3E");}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 14px;border-radius:12px;border:1px solid var(--line);background:#fff;color:var(--text);text-decoration:none;cursor:pointer;}
.btn:hover{background:rgba(15,23,42,.03);}
.btn.primary{background:var(--accent);border-color:transparent;color:#fff;}
.btn.primary:hover{filter:brightness(.98);}
.btn.ghost{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.22);color:#fff;}
.btn.ghost:hover{background:rgba(255,255,255,.18);}

/* Hero slider */
.hero-slider{position:relative;min-height:72vh;overflow:hidden;display:flex;align-items:stretch;}
.hero-slides{position:absolute;inset:0;}
.hero-slide{position:absolute;inset:0;background-size:cover;background-position:center;opacity:0;transform:scale(1.03);transition:opacity 700ms ease,transform 1400ms ease;}
.hero-slide.is-active{opacity:1;transform:scale(1.0);}
.hero-grad{position:absolute;inset:0;background:linear-gradient(90deg, rgba(10,20,35,.78) 0%, rgba(10,20,35,.55) 45%, rgba(10,20,35,.25) 100%);}
.hero-content{position:relative;z-index:2;display:flex;flex-direction:column;justify-content:center;padding-top:44px;padding-bottom:44px;}
.hero-kicker{color:rgba(255,255,255,.85);font-weight:600;letter-spacing:.3px;margin-bottom:10px;}
.hero-title{color:#fff;font-size:clamp(30px,4vw,54px);line-height:1.06;margin:0 0 10px 0;}
.hero-text{color:rgba(255,255,255,.84);max-width:62ch;margin:0 0 14px 0;}
.trust-chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:8px;}
.chip{display:inline-flex;padding:6px 10px;border-radius:999px;border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.10);color:rgba(255,255,255,.90);font-size:12px;}
.hero-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:10px;}
.hero-dots{display:flex;gap:8px;margin-top:18px;}
.dot{width:10px;height:10px;border-radius:999px;border:1px solid rgba(255,255,255,.45);background:rgba(255,255,255,.18);cursor:pointer;}
.dot.is-active{background:rgba(255,255,255,.85);border-color:rgba(255,255,255,.85);}

/* Sections */
.section{padding:54px 0;}
.section-light{background:#f8fafc;}
.section-white{background:#fff;}
.section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:18px;flex-wrap:wrap;margin-bottom:16px;}
.cards-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;}
@media (max-width:980px){.cards-4{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (max-width:560px){.cards-4{grid-template-columns:1fr;}}
.card.soft{border:1px solid var(--line);background:#fff;border-radius:18px;box-shadow:var(--shadow);padding:16px;}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
@media (max-width:980px){.grid-2{grid-template-columns:1fr;}}
.item{border:1px solid var(--line);border-radius:16px;background:#fff;padding:14px;box-shadow:0 8px 18px rgba(17,24,39,.05);}
.item h3{margin:0 0 6px 0;}
.meta{display:flex;gap:10px;flex-wrap:wrap;color:var(--muted);font-size:12px;}
.badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px;}
.badge{display:inline-flex;align-items:center;gap:6px;padding:6px 10px;border-radius:999px;border:1px solid var(--line);background:#fff;font-size:12px;color:var(--text);text-decoration:none;}
.badge.good{border-color:rgba(22,163,74,.25);background:rgba(22,163,74,.08);color:#14532d;}
.badge.warn{border-color:rgba(245,158,11,.25);background:rgba(245,158,11,.10);color:#7c2d12;}
.badge-link{cursor:pointer;}
.why{margin-top:10px;color:var(--muted);font-size:12px;line-height:1.45;}
.title-link{text-decoration:none;color:inherit;}
.title-link:hover{text-decoration:underline;}

/* Form */
form.form .grid{grid-template-columns:repeat(2,minmax(0,1fr));}
@media (max-width:980px){form.form .grid{grid-template-columns:1fr;}}
.field{display:flex;flex-direction:column;gap:6px;}
label{font-size:12px;color:var(--muted);font-weight:600;}
input,select{border:1px solid var(--line);border-radius:12px;padding:10px 12px;font:inherit;background:#fff;color:var(--text);}
input:focus,select:focus{outline:2px solid rgba(37,99,235,.25);border-color:rgba(37,99,235,.35);}
.hint{margin-top:6px;}
.actions{margin-top:14px;justify-content:space-between;}

/* Page head */
.page-head{display:flex;justify-content:space-between;align-items:flex-end;gap:18px;flex-wrap:wrap;}
.page-title{margin:6px 0 0;}
.page-sub{margin:8px 0 0;max-width:72ch;}
.eyebrow{font-weight:600;letter-spacing:.3px;color:var(--muted);}

/* About + insights language blocks */
.lang-tr{display:inline;}
.lang-en{display:none;}
html[lang="en"] .lang-tr{display:none;}
html[lang="en"] .lang-en{display:inline;}

.about-grid{display:grid;grid-template-columns:1.2fr .9fr;gap:16px;}
@media (max-width:980px){.about-grid{grid-template-columns:1fr;}}
.prose p{line-height:1.65;}
.callout{margin-top:12px;border:1px solid var(--line);border-radius:16px;padding:12px 14px;background:rgba(37,99,235,.05);}
.callout-title{font-weight:700;margin-bottom:8px;}
.timeline{margin-top:10px;display:flex;flex-direction:column;gap:12px;}
.tl-item{display:flex;gap:10px;align-items:flex-start;}
.tl-dot{width:10px;height:10px;border-radius:999px;margin-top:7px;background:rgba(37,99,235,.9);}
.tl-title{font-weight:700;}
.contact-list{display:flex;flex-direction:column;gap:10px;}
.contact-row{display:flex;gap:10px;align-items:flex-start;}
.icon{width:34px;height:34px;display:grid;place-items:center;border:1px solid var(--line);border-radius:12px;background:#fff;}
.icon svg{width:18px;height:18px;}
.contact-label{font-weight:700;font-size:12px;color:var(--muted);margin-bottom:2px;}
.map-wrap{border:1px solid var(--line);border-radius:16px;overflow:hidden;background:#fff;}
.map-wrap iframe{width:100%;height:220px;border:0;display:block;}
.cards-2{display:grid;grid-template-columns:1.4fr .6fr;gap:14px;}
@media (max-width:980px){.cards-2{grid-template-columns:1fr;}}
.post-title a{color:inherit;text-decoration:none;}
.post-title a:hover{text-decoration:underline;}
.badge svg{width:14px;height:14px;margin-right:6px;vertical-align:-2px;}

/* CTA band + socials */
.cta-band{background:linear-gradient(135deg, rgba(37,99,235,.16), rgba(14,165,233,.12));border-top:1px solid var(--line);}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;}
.socials{display:flex;gap:10px;flex-wrap:wrap;margin-top:10px;}
.socials a{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;border:1px solid rgba(255,255,255,.25);background:rgba(255,255,255,.16);color:#fff;text-decoration:none;}
.socials a:hover{background:rgba(255,255,255,.22);}
.socials svg{width:18px;height:18px;}



/* Services slider */
.services-head h2{font-size:34px;letter-spacing:-.02em;}
@media (max-width:720px){.services-head h2{font-size:28px;}}

.services-slider{position:relative;}
.svc-viewport{
  overflow-x:auto;
  overflow-y:hidden;
  scroll-snap-type:x mandatory;
  -webkit-overflow-scrolling:touch;
  scrollbar-width:none;
  padding-bottom:10px;
}
.svc-viewport::-webkit-scrollbar{display:none;}

.svc-track{
  display:flex;
  gap:14px;
  padding:4px 2px;
}
.svc-card{
  scroll-snap-align:start;
  min-width:260px;
  max-width:320px;
}
@media (min-width:900px){
  .svc-card{min-width:280px;}
}

.svc-nav{
  position:absolute;
  top:50%;
  transform:translateY(-60%);
  width:40px;
  height:40px;
  border-radius:999px;
  border:1px solid rgba(15,23,42,.12);
  background:rgba(255,255,255,.85);
  box-shadow:0 10px 22px rgba(0,0,0,.10);
  color:#0f172a;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:22px;
}
.svc-nav.prev{left:-10px;}
.svc-nav.next{right:-10px;}
.svc-nav:hover{background:rgba(255,255,255,.95);}
@media (max-width:720px){
  .svc-nav{display:none;}
}

.svc-dots{display:flex;gap:8px;justify-content:center;margin-top:8px;}