/* TESPAM Group — shared stylesheet
   Palette matches the wider TESPAM corporate-identity work (navy / teal / gold). */

:root{
  --ink:#071426;
  --navy-d:#0B2440;
  --navy:#14304F;
  --navy-l:#245C8E;
  --teal:#2E9CA8;
  --teal-l:#45BDCB;
  --teal-p:#8FE3EC;
  --gold:#C9A227;
  --gold-l:#F0D877;
  --ice:#DCEAF6;
  --paper:#F5F8FA;
  --ink-text:#11202F;
  --muted:#5A7085;
  --line:#E2E9EE;
  --radius:14px;
  --maxw:1180px;
  --shadow:0 18px 40px -18px rgba(7,20,38,.28);
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
html,body{overflow-x:hidden;max-width:100%;}
body{
  margin:0;
  font-family:"Segoe UI",Inter,-apple-system,BlinkMacSystemFont,"Helvetica Neue",Arial,sans-serif;
  color:var(--ink-text);
  background:var(--paper);
  line-height:1.62;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0 0 .5em;line-height:1.22;font-weight:800;color:var(--navy);letter-spacing:-.01em;}
p{margin:0 0 1em;}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px;}
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);}

/* ---------------------------------------------------------------- header */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(7,20,38,.94);
  backdrop-filter:saturate(140%) blur(6px);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.site-header .container{display:flex;align-items:center;gap:22px;height:74px;}
.brand-mark{display:flex;align-items:center;gap:12px;margin-right:auto;min-width:0;flex-shrink:1;}
.brand-mark img{height:42px;width:auto;flex-shrink:0;}
.brand-mark .brand-name{color:#fff;font-weight:800;font-size:1.12rem;letter-spacing:.01em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;min-width:0;}
.brand-mark .brand-name small{display:block;font-weight:500;font-size:.62rem;letter-spacing:.14em;color:var(--teal-p);text-transform:uppercase;}

.main-nav{display:flex;align-items:center;gap:0;}
.main-nav a{
  color:#CBD9E6;font-size:.8rem;font-weight:600;padding:9px 10px;border-radius:8px;
  white-space:nowrap;transition:background .15s,color .15s;
}
.main-nav a:hover,.main-nav a.active{background:rgba(255,255,255,.08);color:#fff;}
.main-nav a.active{color:var(--gold-l);}

.lang-switch{display:flex;align-items:center;background:rgba(255,255,255,.08);border-radius:999px;padding:3px;flex-shrink:0;}
.lang-btn{
  border:0;background:transparent;color:#B9C9D8;font-weight:700;font-size:.74rem;letter-spacing:.04em;
  padding:6px 12px;border-radius:999px;cursor:pointer;transition:background .15s,color .15s;
}
.lang-btn.active{background:var(--gold-l);color:var(--ink);}

.nav-toggle{display:none;background:none;border:0;color:#fff;font-size:1.5rem;cursor:pointer;padding:4px 8px;}

/* ---------------------------------------------------------------- hero */
.hero{
  position:relative;color:#fff;overflow:hidden;
  background:linear-gradient(180deg,var(--navy-d),var(--ink));
  padding:96px 0 76px;
}
.hero .hero-bg{
  position:absolute;inset:0;background-size:cover;background-position:center;
  opacity:.55;mix-blend-mode:screen;
}
.hero .hero-scrim{position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,20,38,.35) 0%,rgba(7,20,38,.65) 55%,var(--ink) 100%);}
.hero .container{position:relative;z-index:1;}
.breadcrumb{font-size:.78rem;color:var(--teal-p);font-weight:600;margin-bottom:18px;letter-spacing:.02em;}
.breadcrumb a{color:var(--teal-p);opacity:.8;}
.breadcrumb a:hover{opacity:1;text-decoration:underline;}
.hero-logo-tile{
  display:inline-flex;align-items:center;background:rgba(238,242,245,.96);border-radius:14px;
  padding:12px 22px;margin-bottom:22px;box-shadow:0 14px 34px -14px rgba(0,0,0,.5);
}
.hero-logo{height:56px;width:auto;margin:0;display:block;}
.hero-wordmark{font-size:1.7rem;font-weight:800;color:#fff;letter-spacing:.03em;margin-bottom:22px;}
.hero-wordmark b{color:var(--gold-l);font-weight:800;}
.kicker{
  display:inline-block;font-size:.72rem;font-weight:800;letter-spacing:.16em;text-transform:uppercase;
  color:var(--gold-l);border:1px solid rgba(240,216,119,.4);border-radius:999px;padding:5px 14px;margin-bottom:18px;
}
.hero h1{color:#fff;font-size:clamp(1.9rem,4vw,3rem);max-width:820px;}
.hero .lead{color:var(--ice);font-size:1.1rem;max-width:640px;opacity:.92;}
.hero-figs{display:flex;flex-wrap:wrap;gap:34px;margin-top:34px;}
.hero-figs .fig-num{font-size:1.7rem;font-weight:800;color:#fff;}
.hero-figs .fig-lbl{font-size:.72rem;color:var(--teal-p);font-weight:600;letter-spacing:.04em;text-transform:uppercase;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}

/* ---------------------------------------------------------------- buttons */
.btn{
  display:inline-flex;align-items:center;gap:8px;font-weight:700;font-size:.92rem;
  padding:13px 24px;border-radius:10px;border:1px solid transparent;cursor:pointer;transition:transform .15s,box-shadow .15s,background .15s;
}
.btn:hover{transform:translateY(-1px);}
.btn-gold{background:linear-gradient(180deg,var(--gold-l),var(--gold));color:var(--ink);box-shadow:0 10px 26px -10px rgba(201,162,39,.55);}
.btn-outline{background:transparent;color:#fff;border-color:rgba(255,255,255,.5);}
.btn-outline:hover{background:rgba(255,255,255,.1);}
.btn-navy{background:var(--navy);color:#fff;}
.btn-navy:hover{background:var(--navy-l);}

/* ---------------------------------------------------------------- sections */
.section{padding:72px 0;}
.section-alt{background:#fff;}
.section-navy{background:var(--navy);color:#fff;}
.section-navy h2,.section-navy h3{color:#fff;}
.eyebrow{
  font-size:.72rem;font-weight:800;letter-spacing:.14em;text-transform:uppercase;color:var(--teal);margin-bottom:10px;
}
.section-navy .eyebrow{color:var(--teal-p);}
.section h2{font-size:clamp(1.5rem,2.6vw,2.05rem);}
.section .section-lead{color:var(--muted);max-width:760px;font-size:1.03rem;}
.section-navy .section-lead{color:var(--ice);opacity:.9;}

/* ---------------------------------------------------------------- grids/cards */
.grid{display:grid;gap:22px;}
.grid-2{grid-template-columns:repeat(2,1fr);}
.grid-3{grid-template-columns:repeat(3,1fr);}
.grid-4{grid-template-columns:repeat(4,1fr);}

.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;
  box-shadow:0 10px 24px -18px rgba(7,20,38,.18);transition:transform .15s,box-shadow .15s;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow);}
.card h3{font-size:1.05rem;margin-bottom:8px;}
.card p{color:var(--muted);font-size:.94rem;margin-bottom:0;}
.card .card-tag{font-size:.68rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--teal);margin-bottom:10px;display:block;}

/* brand grid on the homepage */
.brand-card{
  position:relative;display:flex;flex-direction:column;gap:14px;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);padding:26px;box-shadow:0 10px 24px -18px rgba(7,20,38,.18);transition:transform .15s,box-shadow .15s,border-color .15s;
}
.brand-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--teal-l);}
.brand-card .logo-wrap{
  height:64px;width:fit-content;max-width:100%;display:flex;align-items:center;
  background:#EEF2F5;border-radius:10px;padding:8px 16px;
}
.brand-card .logo-wrap img{height:100%;width:auto;max-width:140px;object-fit:contain;}
.brand-card .logo-wrap.text-logo{font-weight:800;font-size:1.05rem;color:var(--navy);letter-spacing:.01em;}
.brand-card .logo-wrap.text-logo b{color:var(--teal);font-weight:800;}
.brand-card h3{font-size:1.08rem;margin-bottom:4px;}
.brand-card p{color:var(--muted);font-size:.9rem;flex-grow:1;}
.brand-card .go{font-size:.82rem;font-weight:700;color:var(--navy);display:inline-flex;align-items:center;gap:6px;}
.brand-card:hover .go{color:var(--teal);}

/* simple bulleted service list, teal accent bar */
.svc-list{display:grid;grid-template-columns:repeat(2,1fr);gap:10px 28px;}
.svc-list li{
  position:relative;padding:10px 0 10px 20px;font-size:.95rem;border-bottom:1px solid var(--line);
}
.svc-list li::before{content:"";position:absolute;left:0;top:16px;width:8px;height:8px;border-radius:2px;background:var(--teal);}
.section-navy .svc-list li{border-color:rgba(255,255,255,.14);}
.section-navy .svc-list li::before{background:var(--gold-l);}

.subgroup{margin-bottom:38px;}
.subgroup:last-child{margin-bottom:0;}
.subgroup h3{
  font-size:.98rem;color:var(--navy);display:flex;align-items:center;gap:10px;margin-bottom:16px;
  padding-bottom:10px;border-bottom:2px solid var(--gold-l);
}
.section-navy .subgroup h3{color:#fff;border-bottom-color:var(--gold-l);}

/* stat strip */
.stat-strip{display:flex;flex-wrap:wrap;gap:0;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff;}
.stat-strip .stat{flex:1 1 160px;padding:26px 22px;border-right:1px solid var(--line);}
.stat-strip .stat:last-child{border-right:0;}
.stat .num{font-size:1.7rem;font-weight:800;color:var(--navy);}
.stat .lbl{font-size:.78rem;color:var(--muted);font-weight:600;}

/* CTA banner */
.cta-banner{
  background:linear-gradient(120deg,var(--navy-d),var(--navy) 55%,var(--teal) 150%);
  color:#fff;border-radius:20px;padding:44px;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
}
.cta-banner h2{color:#fff;margin-bottom:6px;font-size:1.5rem;}
.cta-banner p{color:var(--ice);opacity:.9;margin-bottom:0;max-width:520px;}

/* external-link portal card (Akademi / Yayınevi) */
.portal-card{
  background:linear-gradient(160deg,#fff,var(--paper));border:1px solid var(--line);border-radius:20px;
  padding:38px;display:flex;align-items:center;gap:28px;flex-wrap:wrap;box-shadow:var(--shadow);
}
.portal-card .portal-icon{
  width:64px;height:64px;border-radius:16px;background:var(--navy);color:var(--gold-l);
  display:flex;align-items:center;justify-content:center;font-size:1.6rem;flex-shrink:0;
}
.portal-card .portal-body{flex:1 1 320px;}
.portal-card h3{margin-bottom:6px;}
.portal-card p{color:var(--muted);margin-bottom:0;}
.portal-card .portal-url{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.86rem;color:var(--teal);}

/* ---------------------------------------------------------------- footer */
.site-footer{background:var(--ink);color:#B9C9D8;padding:56px 0 26px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;margin-bottom:40px;}
.footer-grid h4{color:#fff;font-size:.82rem;letter-spacing:.06em;text-transform:uppercase;margin-bottom:16px;}
.footer-grid ul li{margin-bottom:9px;font-size:.88rem;}
.footer-grid ul li a:hover{color:#fff;text-decoration:underline;}
.footer-about img{height:40px;margin-bottom:14px;}
.footer-about p{font-size:.86rem;color:#8FA3B6;max-width:280px;}
.footer-contact li{display:flex;gap:8px;}
.footer-contact li span.k{color:#6E869B;flex-shrink:0;min-width:88px;font-weight:600;font-size:.78rem;text-transform:uppercase;letter-spacing:.04em;padding-top:1px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding-top:22px;display:flex;justify-content:space-between;
  flex-wrap:wrap;gap:10px;font-size:.8rem;color:#6E869B;
}

/* ---------------------------------------------------------------- responsive */
@media (max-width:980px){
  .grid-4{grid-template-columns:repeat(2,1fr);}
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:1260px){
  .main-nav{
    position:fixed;inset:74px 0 0 0;background:var(--ink);flex-direction:column;align-items:stretch;
    padding:14px;gap:4px;transform:translateX(100%);transition:transform .22s ease;overflow-y:auto;
  }
  .main-nav.open{transform:translateX(0);}
  .main-nav a{padding:14px 12px;font-size:1rem;border-bottom:1px solid rgba(255,255,255,.06);border-radius:0;}
  .nav-toggle{display:block;}
  .brand-mark .brand-name{font-size:1rem;}
}
@media (max-width:640px){
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr;}
  .svc-list{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .hero{padding:70px 0 56px;}
  .cta-banner{padding:30px;}
  .portal-card{padding:26px;}
  .section{padding:52px 0;}
}
@media (max-width:460px){
  .footer-grid{grid-template-columns:1fr;}
}
@media (max-width:480px){
  .container{padding:0 16px;}
  .site-header .container{gap:10px;}
  .brand-mark img{height:32px;}
  .brand-mark .brand-name{font-size:.86rem;max-width:120px;}
  .brand-mark .brand-name small{font-size:.56rem;}
  .lang-switch{flex-shrink:0;}
  .lang-btn{padding:5px 9px;font-size:.7rem;}
  .nav-toggle{flex-shrink:0;padding:4px 4px;font-size:1.3rem;}
  .hero-figs{gap:20px;}
  .stat-strip .stat{padding:20px 16px;}
}