/* ===========================================================
   A Plus ArGe — Modern Kurumsal Tasarım Sistemi (modern.css)
   Marka: turkuaz #00a59b. Bağımsız, Bootstrap'a ihtiyaç duymaz.
   =========================================================== */

:root{
  --brand:#00a59b;
  --brand-600:#008f86;
  --brand-700:#00756e;
  --brand-900:#063b38;
  --ink:#16242b;
  --body:#475866;
  --muted:#7d8c97;
  --line:#e7edf0;
  --bg:#ffffff;
  --bg-soft:#f4f8f8;
  --bg-deep:#0c2b29;
  --accent:#ffb703;
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 10px 30px rgba(8,40,38,.08);
  --shadow-lg:0 24px 60px rgba(8,40,38,.16);
  --maxw:1180px;
  --font:'Montserrat',system-ui,-apple-system,'Segoe UI',Roboto,Arial,sans-serif;
  --head:'Lato','Montserrat',system-ui,sans-serif;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;font-family:var(--font);color:var(--body);
  background:var(--bg);line-height:1.7;font-size:16px;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand-700);text-decoration:none;transition:.2s}
a:hover{color:var(--brand)}
h1,h2,h3,h4{font-family:var(--head);color:var(--ink);line-height:1.2;margin:0 0 .5em;font-weight:700}
h2{font-size:clamp(1.6rem,3vw,2.3rem)}
h3{font-size:1.25rem}
p{margin:0 0 1rem}
.container{max-width:var(--maxw);margin:0 auto;padding:0 22px}
.center{text-align:center}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.55rem;cursor:pointer;
  font-family:var(--head);font-weight:700;font-size:.95rem;letter-spacing:.2px;
  padding:.85rem 1.6rem;border-radius:50px;border:2px solid transparent;transition:.2s;white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 20px rgba(0,165,155,.35)}
.btn-primary:hover{background:var(--brand-600);color:#fff;transform:translateY(-2px)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.6)}
.btn-ghost:hover{background:#fff;color:var(--brand-700);border-color:#fff}
.btn-outline{background:#fff;color:var(--brand-700);border-color:var(--line)}
.btn-outline:hover{border-color:var(--brand);color:var(--brand)}
.btn-lg{padding:1rem 2rem;font-size:1.02rem}

/* ---------- Topbar ---------- */
.topbar{background:var(--brand-900);color:#cfe9e6;font-size:.85rem}
.topbar .container{display:flex;justify-content:space-between;align-items:center;gap:14px;min-height:42px;flex-wrap:wrap}
.topbar a{color:#cfe9e6}
.topbar a:hover{color:#fff}
.topbar .tb-meta{display:flex;gap:20px;flex-wrap:wrap;align-items:center}
.topbar .tb-meta i{color:var(--brand);margin-right:6px}
.topbar .tb-social a{margin-left:14px}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);transition:.25s}
.site-header.scrolled{box-shadow:0 6px 24px rgba(8,40,38,.10)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:74px}
.brand{margin-left:-22px}
.brand img{height:62px;width:auto}
.main-nav{display:flex;align-items:center;gap:6px}
.main-nav a.navlink{font-family:var(--head);font-weight:700;color:var(--ink);padding:.6rem .9rem;border-radius:8px;font-size:.95rem}
.main-nav a.navlink:hover{background:var(--bg-soft);color:var(--brand-700)}
.nav-cta{display:flex;align-items:center;gap:12px}
.nav-cta .btn{padding:.5rem 1.1rem;font-size:.9rem}
.nav-phone{font-family:var(--head);font-weight:700;color:var(--brand-700);white-space:nowrap}
.nav-phone i{margin-right:6px}
.nav-toggle{display:none;background:none;border:0;font-size:1.6rem;color:var(--ink);cursor:pointer}

/* ---------- Hero ---------- */
.hero{position:relative;color:#fff;overflow:hidden;background:#063b38}
.hero::before{content:"";position:absolute;inset:0;background:
  linear-gradient(120deg,rgba(6,40,38,.94) 0%,rgba(0,117,110,.82) 55%,rgba(0,165,155,.55) 100%),
  url('../img/intro-carousel/home-background.jpg') center/cover no-repeat;}
.hero .container{position:relative;padding:88px 22px 96px;max-width:var(--maxw)}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center}
.hero .eyebrow{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.25);padding:.4rem .9rem;border-radius:50px;font-size:.8rem;font-weight:600;letter-spacing:.4px;text-transform:uppercase;margin-bottom:18px}
.hero h1{color:#fff;font-size:clamp(2rem,4.4vw,3.3rem);margin-bottom:.5em}
.hero h1 span{color:#7ff3e9}
.hero p.lead{font-size:1.12rem;color:#dff3f1;max-width:560px;margin-bottom:28px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:26px}
.hero-badges{display:flex;gap:22px;flex-wrap:wrap;font-size:.9rem;color:#cdeae7}
.hero-badges i{color:#7ff3e9;margin-right:7px}
.hero-card{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);border-radius:var(--radius);padding:26px;backdrop-filter:blur(6px)}
.hero-card h3{color:#fff;font-size:1.1rem}
.hero-card ul{list-style:none;padding:0;margin:14px 0 0}
.hero-card li{display:flex;gap:10px;align-items:flex-start;padding:9px 0;border-bottom:1px dashed rgba(255,255,255,.18);color:#e6f6f4;font-size:.95rem}
.hero-card li:last-child{border-bottom:0}
.hero-card li i{color:#7ff3e9;margin-top:4px}

/* ---------- Trust / certifications strip ---------- */
.trust{background:var(--bg-soft);border-bottom:1px solid var(--line)}
.trust .container{display:flex;align-items:center;justify-content:center;gap:34px;flex-wrap:wrap;padding:22px 22px}
.trust .t-item{display:flex;align-items:center;gap:10px;font-family:var(--head);font-weight:700;color:var(--ink);font-size:.95rem}
.trust .t-item i{color:var(--brand);font-size:1.3rem}

/* ---------- Sections ---------- */
.section{padding:84px 0}
.section.alt{background:var(--bg-soft)}
.section.deep{background:var(--bg-deep);color:#cfe2df}
.section.deep h2,.section.deep h3{color:#fff}
.sec-head{max-width:720px;margin:0 auto 50px;text-align:center}
.sec-head .kicker{color:var(--brand);font-family:var(--head);font-weight:700;letter-spacing:1.5px;text-transform:uppercase;font-size:.8rem;display:block;margin-bottom:10px}
.sec-head p{color:var(--muted);font-size:1.05rem;margin:0}

/* ---------- Card grid ---------- */
.grid{display:grid;gap:26px}
.g-2{grid-template-columns:repeat(2,1fr)}
.g-3{grid-template-columns:repeat(3,1fr)}
.g-4{grid-template-columns:repeat(4,1fr)}

.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.25s;display:flex;flex-direction:column}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:transparent}
.card .card-img{aspect-ratio:4/3;overflow:hidden;background:var(--bg-soft)}
.card .card-img img{width:100%;height:100%;object-fit:cover;transition:.4s}
.card:hover .card-img img{transform:scale(1.06)}
.card-img.fit img{object-fit:contain;padding:10px}
.card .card-body{padding:22px;flex:1;display:flex;flex-direction:column}
.card h3{margin-bottom:.4em}
.card p{color:var(--muted);font-size:.95rem;flex:1}
.card .card-link{font-family:var(--head);font-weight:700;color:var(--brand-700);margin-top:10px;display:inline-flex;align-items:center;gap:6px}
.card .card-link i{transition:.2s}
.card:hover .card-link i{transform:translateX(4px)}

/* Feature / icon card */
.feature{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;transition:.25s}
.feature:hover{box-shadow:var(--shadow);transform:translateY(-4px)}
.feature .ic{width:58px;height:58px;border-radius:14px;display:grid;place-items:center;background:linear-gradient(135deg,var(--brand),var(--brand-700));color:#fff;font-size:1.5rem;margin-bottom:16px}
.feature h3{font-size:1.12rem}
.feature p{color:var(--muted);font-size:.95rem;margin:0}

/* Sector card (compact) */
.sector{position:relative;border-radius:var(--radius);overflow:hidden;min-height:210px;display:flex;align-items:flex-end;color:#fff;border:1px solid var(--line)}
.sector img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0}
.sector.sector-fit img{object-fit:contain;background:#ffffff}
.sector::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,40,38,.05),rgba(6,40,38,.86));z-index:1}
.sector .s-body{position:relative;z-index:2;padding:20px}
.sector h3{color:#fff;font-size:1.1rem;margin-bottom:4px}
.sector p{color:rgba(255,255,255,.85);font-size:.88rem;margin:0}

/* ---------- Stats ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center}
.stat .num{font-family:var(--head);font-weight:700;font-size:clamp(2rem,4vw,2.8rem);color:#fff;line-height:1}
.stat .lbl{color:#9fc4bf;font-size:.95rem;margin-top:8px}

/* ---------- Split content (ISG) ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.split img{border-radius:var(--radius);box-shadow:var(--shadow)}
.split .chips{display:flex;flex-wrap:wrap;gap:10px;margin:18px 0 6px}
.chip{background:var(--bg-soft);border:1px solid var(--line);color:var(--brand-700);font-weight:600;font-size:.85rem;padding:.45rem .9rem;border-radius:50px}
.tick{list-style:none;padding:0;margin:18px 0 0}
.tick li{display:flex;gap:12px;align-items:flex-start;padding:8px 0}
.tick li i{color:var(--brand);margin-top:5px}

/* ---------- FAQ ---------- */
.faq{max-width:840px;margin:0 auto}
.faq details{background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);margin-bottom:14px;padding:0 22px;transition:.2s}
.faq details[open]{box-shadow:var(--shadow);border-color:transparent}
.faq summary{list-style:none;cursor:pointer;font-family:var(--head);font-weight:700;color:var(--ink);padding:18px 0;display:flex;justify-content:space-between;align-items:center;gap:16px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"\f067";font-family:"Font Awesome 5 Free";font-weight:900;color:var(--brand);transition:.2s}
.faq details[open] summary::after{content:"\f068"}
.faq details p{color:var(--muted);padding-bottom:18px;margin:0;font-size:.97rem}

/* ---------- CTA banner ---------- */
.cta{background:linear-gradient(120deg,var(--brand-700),var(--brand));color:#fff;border-radius:var(--radius);padding:48px;display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap;box-shadow:var(--shadow-lg)}
.cta h2{color:#fff;margin:0 0 .3em}
.cta p{color:#e3f6f4;margin:0}

/* ---------- Footer ---------- */
.site-footer{background:var(--bg-deep);color:#a9c5c1;padding:64px 0 0;font-size:.93rem}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:34px}
.site-footer h4{color:#fff;font-size:1rem;letter-spacing:.4px;margin-bottom:18px}
.site-footer a{color:#a9c5c1;display:block;padding:5px 0}
.site-footer a:hover{color:#7ff3e9}
.foot-brand img{height:54px;margin-bottom:16px;background:#fff;padding:8px 12px;border-radius:8px}
.foot-contact li{display:flex;gap:12px;align-items:flex-start;padding:7px 0;list-style:none}
.foot-contact ul{padding:0;margin:0}
.foot-contact i{color:var(--brand);margin-top:5px}
.foot-social{display:flex;gap:12px;margin-top:16px}
.foot-social a{width:40px;height:40px;border-radius:50%;background:rgba(255,255,255,.08);display:grid;place-items:center;color:#cfe2df}
.foot-social a:hover{background:var(--brand);color:#fff}
.foot-bottom{border-top:1px solid rgba(255,255,255,.1);margin-top:44px;padding:22px 0;text-align:center;color:#7fa39e;font-size:.85rem}

/* ---------- Page banner (iç sayfalar) ---------- */
.page-hero{position:relative;color:#fff;background:linear-gradient(120deg,var(--brand-900),var(--brand-700));padding:64px 0 54px;text-align:center}
.page-hero h1{color:#fff;font-size:clamp(1.7rem,3.4vw,2.4rem);margin:0}
.page-hero .crumb{color:rgba(255,255,255,.8);font-size:.9rem;margin-top:10px}
.page-hero .crumb a{color:#bfeae6}

/* ---------- Product detail ---------- */
.product{display:grid;grid-template-columns:.95fr 1.05fr;gap:44px;align-items:start;margin-bottom:10px}
.product-gallery .main{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff}
.product-gallery .main img{width:100%;aspect-ratio:4/3;object-fit:contain;background:#fff;cursor:zoom-in;padding:12px}
.urun-thumbs{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
.urun-thumbs img{width:74px;height:74px;object-fit:cover;border:1px solid var(--line);border-radius:10px;padding:4px;background:#fff;cursor:pointer;transition:.2s}
.urun-thumbs img:hover,.urun-thumbs img.active{border-color:var(--brand)}
.product-info h1{font-size:clamp(1.4rem,2.6vw,2rem);margin-bottom:.4em}
.product-info .ozet{color:var(--body);font-size:1.05rem}
.product-info .ozet h1,.product-info .ozet h3{font-size:1.05rem;color:var(--brand-700);margin:.6em 0 .2em}
.product-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}

/* ---------- Category intro ---------- */
.cat-intro{display:grid;grid-template-columns:1.1fr .9fr;gap:42px;align-items:center;margin-bottom:54px}
.cat-intro img{border-radius:var(--radius);box-shadow:var(--shadow)}
.cat-intro p{color:var(--body);font-size:1.05rem}

/* ---------- Referanslar ---------- */
.ref-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:22px}
.ref-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;transition:.25s}
.ref-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:transparent}
.ref-logo{aspect-ratio:16/9;display:flex;align-items:center;justify-content:center;background:var(--bg-soft);border-bottom:1px solid var(--line);padding:14px}
.ref-logo img{max-width:100%;max-height:100%;object-fit:contain}
.ref-logo .ref-mark{font-family:var(--head);font-weight:900;font-size:1.9rem;letter-spacing:1px;color:var(--brand)}
.ref-body{padding:16px 18px;flex:1;display:flex;align-items:center;justify-content:center;text-align:center}
.ref-body p{margin:0;font-size:.82rem;line-height:1.5;color:var(--muted);font-weight:600}

/* ---------- Prose (açıklama / statik metin) ---------- */
.prose{color:var(--body);line-height:1.85;max-width:880px}
.prose h2,.prose h3,.prose h4{color:var(--ink);margin-top:1.6em}
.prose h3,.prose h4{color:var(--brand-700)}
.prose p{margin:0 0 1.1em}
.prose img{border-radius:12px;margin:16px 0;height:auto}
.prose ul{padding-left:1.25em;margin:0 0 1.1em}
.prose li{margin:.35em 0}
.prose a{color:var(--brand-700);text-decoration:underline}
.prose iframe{max-width:100%;border:0;border-radius:12px;margin:16px 0}

@media(max-width:980px){
  .product{grid-template-columns:1fr;gap:26px}
  .cat-intro{grid-template-columns:1fr;gap:24px}
}

/* ---------- Reveal animation ---------- */
.reveal{opacity:0;transform:translateY(24px);transition:.7s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}

/* ---------- Responsive ---------- */
@media(max-width:980px){
  .hero-grid{grid-template-columns:1fr}
  .hero-card{display:none}
  .g-4{grid-template-columns:repeat(2,1fr)}
  .g-3{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr;gap:28px}
  .stats{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:760px){
  .main-nav,.nav-phone{display:none}
  .nav-toggle{display:block}
  .main-nav.open{display:flex;position:absolute;top:74px;left:0;right:0;flex-direction:column;align-items:stretch;background:#fff;border-bottom:1px solid var(--line);padding:12px 18px;gap:2px;box-shadow:var(--shadow)}
  .main-nav.open a.navlink{padding:.8rem .6rem;border-radius:8px}
  .section{padding:60px 0}
  .g-4,.g-3,.g-2{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .cta{padding:32px;text-align:center;justify-content:center}
  .topbar .tb-meta .tb-hide{display:none}
}