/* ===== Fetrion — Kurumsal Fix Pack (Renk + Logo + Mobile) ===== */

/* Konteyner ve genel tipografi */
:root{
  --bg:#f6f7f9; --ink:#0b1220; --muted:#445268; --line:#dbe2ea;
  --card:#ffffff; --brand:#1e40af; --accent:#0ea5a8; --ctaText:#ffffff;
}
html,body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.65 system-ui,-apple-system,Segoe UI,Roboto,Inter,Arial}
*{box-sizing:border-box}
img,video{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
.container{max-width:1200px;margin:0 auto;padding:0 20px}

/* HEADER — beyaz, tek logo, okunaklı menü */
.site-header{
  position:sticky; top:0; z-index:1000;
  background:#fff; border-bottom:1px solid #e5e7eb;
  box-shadow:0 2px 12px rgba(17,24,39,.06);
}
.topbar{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:10px 0}
.brand{display:flex;align-items:center;gap:10px;min-width:0}
.brand img{height:40px;width:auto;object-fit:contain;display:none}
/* SADECE profesyonel logo kalsın, diğerleri gizlensin */
.brand img[src*="fetrion-logo.svg"]{display:block}
.site-header .brand img:not([src*="fetrion-logo.svg"]){display:none!important}
.brand .title{display:none}

/* Menü */
.primary-nav{margin-left:auto;display:flex;gap:18px}
.primary-nav a{color:#1f2937;font-weight:600;opacity:.95;padding:8px 0;border-bottom:2px solid transparent}
.primary-nav a:hover{opacity:1}
.primary-nav a.active{color:#0f172a;border-bottom-color:var(--brand)}

/* HAMBURGER */
.nav-toggle{display:none;margin-left:auto;border:1px solid #e5e7eb;background:#fff;color:#374151;border-radius:10px;padding:6px 10px}

/* HERO — açık gri, net CTA */
.hero{background:#eef2f9;border-bottom:1px solid var(--line)}
.hero .container{display:grid;grid-template-columns:1.4fr .6fr;gap:26px;align-items:center;padding:28px 0}
.hero h1{letter-spacing:.2px;margin:0 0 8px}
.hero p{color:var(--muted);margin:0 0 16px}
.hero .cta{display:inline-flex;align-items:center;gap:10px;background:var(--brand);color:var(--ctaText);border-radius:10px;padding:12px 16px;font-weight:700}
.hero .cta:hover{filter:brightness(.95)}
.hero .img{background:#f1f5f9 url('/assets/hero-pcb.jpg') center/cover no-repeat;border:1px solid var(--line);border-radius:12px;min-height:240px}

/* KARTLAR */
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;box-shadow:0 1px 2px rgba(17,24,39,.06)}
.card:hover{border-color:#cbd6e2;box-shadow:0 2px 8px rgba(17,24,39,.08)}
.muted{color:var(--muted)}

/* GRID/SATIR */
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.row{display:grid;grid-template-columns:1fr 1fr;gap:16px}

/* SIDEBAR */
.sidebar{background:transparent;padding:0}
.sidebar .widget{background:#fff;border:1px solid var(--line);border-radius:12px}

/* FOOTER */
.site-footer{background:#0f172a;color:#e2e8f0}
.site-footer a{color:#93c5fd}

/* WHATSAPP */
.whatsapp{display:inline-flex;align-items:center;gap:8px;border:1px solid #16a34a;background:#f0fff4;color:#065f46;padding:10px 14px;border-radius:12px;font-weight:600}
.whatsapp:hover{background:#dcfce7}
.fab{position:fixed;right:18px;bottom:18px;z-index:1000;display:flex;align-items:center;justify-content:center;width:56px;height:56px;border-radius:50%;border:none;background:#22c55e;box-shadow:0 8px 18px rgba(0,0,0,.18)}
.fab svg{width:28px;height:28px;fill:#fff}

/* MOBIL */
@media (max-width:980px){
  .brand img[src*="fetrion-logo.svg"]{height:36px}
  .nav-toggle{display:inline-block}
  .primary-nav{display:none}
  .primary-nav.open{
    display:flex;flex-direction:column;gap:8px;
    position:absolute;right:20px;top:60px;width:calc(100% - 40px);
    background:#fff;border:1px solid #e5e7eb;border-radius:12px;
    box-shadow:0 10px 24px rgba(17,24,39,.16);padding:10px 12px;
  }
  .primary-nav.open a{padding:10px 6px;border-bottom:0}
  .hero .container{grid-template-columns:1fr;gap:18px}
  .grid{grid-template-columns:1fr}
  .row{grid-template-columns:1fr}
}