/* ==========================================================================
   TRN Teknoloji - Referanslar sayfaları (Tüm Referanslar, Başarı Hikâyeleri)
   ========================================================================== */

.ref-page{background:#fff}

/* Sayfa başlığı + alt menü */
.ref-hero{padding:70px 0 52px;text-align:center;background:linear-gradient(180deg,#fff 0%,#f6f7f9 100%)}
.ref-hero .eyebrow{font-size:14px;letter-spacing:.16em}
.ref-hero h1{margin:0;font-size:clamp(40px,5vw,62px);line-height:1.06;letter-spacing:-.04em}
.ref-hero .lead{max-width:790px;margin:18px auto 0;color:#626874;font-size:19px}
.ref-subnav{display:flex;justify-content:center;gap:8px;margin-top:30px}
.ref-subnav a{padding:10px 18px;border:1px solid var(--line);border-radius:999px;background:#fff;font-weight:800}
.ref-subnav a:hover{border-color:var(--red);color:var(--red)}
.ref-subnav a[aria-current="page"]{border-color:var(--red);background:var(--red);color:#fff}

/* Logo listesi */
.ref-logos{padding:58px 0 82px;background:var(--soft)}
.ref-filters{display:flex;flex-wrap:wrap;justify-content:center;gap:9px;margin-bottom:30px}
.ref-filter{padding:10px 17px;border:1px solid var(--line);border-radius:999px;background:#fff;color:inherit;font:inherit;font-weight:800;cursor:pointer}
.ref-filter[aria-pressed="true"]{border-color:var(--red);background:var(--red);color:#fff}
.ref-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;margin:0;padding:0;list-style:none}
.ref-card{display:flex;height:168px;padding:14px;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:16px;background:#fff;transition:.2s}
.ref-card[hidden]{display:none}
.ref-card:hover{transform:translateY(-3px);border-color:#efb8b8;box-shadow:0 16px 38px rgba(18,22,33,.08)}
.ref-card img{width:auto;max-width:94%;max-height:112px;object-fit:contain}
.ref-card .ref-name{color:#1b1d22;font-size:1.35rem;font-weight:900;letter-spacing:-.01em;text-align:center}

/* Başarı hikâyeleri */
.stories{padding:58px 0 82px;background:var(--soft)}
.story{display:grid;grid-template-columns:340px 1fr;overflow:hidden;border:1px solid var(--line);border-radius:22px;background:#fff;box-shadow:0 16px 38px rgba(18,22,33,.08)}
.story+.story{margin-top:28px}
.story:nth-child(even){grid-template-columns:1fr 340px}
.story:nth-child(even) .story-image{order:2}
.story-image{min-height:510px;background:#eceef2}
.story-image img{width:100%;height:100%;object-fit:cover}
.story-copy{padding:42px 46px}
.story-copy .tag{color:var(--red);font-size:13px;font-weight:900;letter-spacing:.12em;text-transform:uppercase}
.story-copy h2{margin:7px 0 16px;font-size:34px;line-height:1.15;letter-spacing:-.02em}
.story-copy p{margin:0 0 15px;color:#3f444d;font-size:17px}
.story-quote{margin-top:24px;padding:20px 22px;border-left:4px solid var(--red);border-radius:0 12px 12px 0;background:#fff5f5}
.story-quote strong{display:block;color:var(--ink);font-size:18px}
.story-quote span{color:#626874}

/* CTA */
.ref-cta{padding:62px 0;background:#fff}
.ref-cta .cta-box{display:flex;align-items:center;justify-content:space-between;gap:25px;padding:35px 39px;border:1px solid var(--line);border-radius:20px;background:linear-gradient(135deg,#fff,#fff2f2)}
.ref-cta .eyebrow{font-size:14px;letter-spacing:.16em}
.ref-cta h2{margin:0 0 5px;font-size:32px;line-height:1.2}
.ref-cta p:not(.eyebrow){color:#626874}
.ref-cta .btn{flex:0 0 auto}

@media(max-width:980px){
  .ref-grid{grid-template-columns:repeat(4,1fr)}
  .story,.story:nth-child(even){grid-template-columns:290px 1fr}
  .story:nth-child(even) .story-image{order:0}
  .story-copy{padding:34px}
}
@media(max-width:720px){
  .ref-hero{padding:48px 0 38px}
  .ref-hero .lead{font-size:17px}
  .ref-subnav{flex-direction:column;align-items:stretch}
  .ref-subnav a{text-align:center}
  .ref-logos,.stories{padding:38px 0 55px}
  .ref-filters{flex-wrap:nowrap;justify-content:flex-start;overflow:auto;padding-bottom:5px}
  .ref-filter{white-space:nowrap}
  .ref-grid{grid-template-columns:repeat(2,1fr);gap:11px}
  .ref-card{height:132px;padding:12px}
  .ref-card img{max-width:96%;max-height:94px}
  .story,.story:nth-child(even){grid-template-columns:1fr}
  .story-image,.story:nth-child(even) .story-image{order:0;min-height:0;aspect-ratio:16/10}
  .story-copy{padding:27px 23px}
  .story-copy h2{font-size:28px}
  .story-copy p{font-size:16px}
  .ref-cta .cta-box{align-items:flex-start;flex-direction:column;padding:28px 24px}
}