/* ===================================================================
   Sistem Sera CMS - Ön Yüz Stilleri
   Renk şeması: Koyu yeşil #006b4f, Açık yeşil #8cc63f
   =================================================================== */
:root{
    --green-dark:#006b4f;
    --green-darker:#00543d;
    --green-light:#8cc63f;
    --green-light-2:#a4d65e;
    --bg:#fcfdfc;
    --text:#222a28;
    --muted:#5c6b66;
    --white:#fff;
    --border:#e4eae8;
    --shadow:0 8px 30px rgba(0,40,30,.08);
    --radius:14px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
    font-family:'DM Sans',system-ui,Arial,sans-serif;
    color:var(--text);
    background:var(--bg);
    line-height:1.6;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{max-width:1180px;margin:0 auto;padding:0 20px}

/* ---------------- Topbar ---------------- */
.topbar{background:var(--green-dark);color:#dff3ec;font-size:.9rem}
.topbar-inner{display:flex;align-items:center;gap:24px;padding:8px 20px}
.topbar-link{opacity:.92;transition:opacity .2s}
.topbar-link:hover{opacity:1}
.topbar-lang{display:flex;align-items:center;gap:6px;margin-left:auto}
.topbar-lang a{display:inline-flex;align-items:center;gap:5px;padding:4px 8px;border-radius:20px;color:#dff3ec;font-weight:700;font-size:.78rem;line-height:1;transition:.2s}
.topbar-lang a:hover,.topbar-lang a.active{background:rgba(255,255,255,.16);color:#fff}
.topbar-lang .flag{width:17px;height:12px;object-fit:cover;border-radius:2px;box-shadow:0 0 0 1px rgba(255,255,255,.35)}

/* ---------------- Header ---------------- */
.site-header{background:rgba(255,255,255,.96);position:sticky;top:0;z-index:50;
    box-shadow:0 2px 14px rgba(0,40,30,.06);backdrop-filter:blur(6px)}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:14px 20px}
.logo img{height:46px}
.logo-text{font-size:1.6rem;font-weight:700;letter-spacing:.5px;color:var(--green-dark)}
.logo-accent{color:var(--green-light)}
.main-nav{display:flex;gap:6px;align-items:center}
.main-nav a{padding:10px 16px;font-weight:500;border-radius:8px;color:var(--text);transition:.2s}
.main-nav a:hover{color:var(--green-dark);background:#eef7f1}
.main-nav a.active{color:var(--green-dark)}
.main-nav a.nav-cta{background:var(--green-light);color:#0a3d2b;font-weight:700}
.main-nav a.nav-cta:hover{background:var(--green-light-2)}
.nav-toggle,.nav-toggle-label{display:none}

/* ---------------- Buttons ---------------- */
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 26px;border-radius:30px;
    font-weight:700;cursor:pointer;border:none;font-size:1rem;transition:.2s;font-family:inherit}
.btn-primary{background:var(--green-light);color:#0a3d2b}
.btn-primary:hover{background:var(--green-light-2);transform:translateY(-2px)}
.btn-outline{background:transparent;border:2px solid var(--white);color:var(--white)}
.btn-outline:hover{background:var(--white);color:var(--green-dark)}
.btn-dark{background:var(--green-dark);color:#fff}
.btn-dark:hover{background:var(--green-darker)}

/* ---------------- Hero ---------------- */
.hero{position:relative;color:#fff;padding:120px 0;background-size:cover;background-position:center;
    background-image:linear-gradient(120deg,rgba(0,84,61,.92),rgba(0,107,79,.7)),
        url('../images/hero.jpg')}
.hero h1{font-size:3.6rem;line-height:1.1;font-weight:700;margin-bottom:18px}
.hero h1 .accent{color:var(--green-light)}
.hero p{font-size:1.15rem;max-width:560px;opacity:.95;margin-bottom:30px}
.hero .badge{display:inline-block;background:rgba(255,255,255,.15);border:1px solid rgba(255,255,255,.3);
    padding:7px 16px;border-radius:30px;font-size:.85rem;margin-bottom:22px}
.hero-buttons{display:flex;gap:14px;flex-wrap:wrap}

/* ---------------- Sections ---------------- */
.section{padding:80px 0}
.section.alt{background:#f3f8f5}
.section-head{text-align:center;max-width:680px;margin:0 auto 50px}
.section-head .eyebrow{color:var(--green-light);font-weight:700;letter-spacing:1px;text-transform:uppercase;font-size:.85rem}
.section-head h2{font-size:2.3rem;color:var(--green-dark);margin:8px 0 12px}
.section-head p{color:var(--muted)}

/* About split */
.split{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}
.split img{border-radius:var(--radius);box-shadow:var(--shadow);width:100%;height:100%;object-fit:cover}
.split .eyebrow{color:var(--green-light);font-weight:700;text-transform:uppercase;letter-spacing:1px;font-size:.85rem}
.split h2{font-size:2.1rem;color:var(--green-dark);margin:8px 0 16px}
.split p{color:var(--muted);margin-bottom:14px}

/* ---------------- Cards grid ---------------- */
.grid{display:grid;gap:26px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.card{background:var(--white);border:1px solid var(--border);border-radius:var(--radius);
    overflow:hidden;box-shadow:var(--shadow);transition:transform .25s}
.card:hover{transform:translateY(-6px)}
.card .card-img{height:190px;background:#dfeee6 center/cover no-repeat;display:flex;align-items:center;justify-content:center;font-size:3rem}
.card .card-img.card-photo{position:relative}
.card .card-img.card-photo::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,84,61,.02),rgba(0,84,61,.2))}
.card .card-body{padding:22px}
.card h3{color:var(--green-dark);font-size:1.2rem;margin-bottom:10px}
.card p{color:var(--muted);font-size:.96rem}

/* ---------------- Process ---------------- */
.process-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:20px}
.process-step{text-align:center;padding:24px 14px;background:var(--white);border-radius:var(--radius);
    border:1px solid var(--border);box-shadow:var(--shadow)}
.process-step .num{font-size:2.4rem;font-weight:700;color:var(--green-light);line-height:1}
.process-step h4{color:var(--green-dark);margin:10px 0 8px;font-size:1.05rem}
.process-step p{color:var(--muted);font-size:.9rem}

/* ---------------- Products categories ---------------- */
.cat-block{background:var(--white);border:1px solid var(--border);border-radius:var(--radius);
    padding:0 26px 26px;box-shadow:var(--shadow);overflow:hidden}
.cat-img{height:150px;margin:0 -26px 24px;background:#dfeee6 center/cover no-repeat}
.cat-block h3{color:var(--green-dark);margin-bottom:14px;padding-bottom:12px;border-bottom:2px solid var(--green-light)}
.cat-block ul{list-style:none}
.cat-block li{padding:8px 0 8px 26px;position:relative;color:var(--text);border-bottom:1px dashed var(--border)}
.cat-block li:last-child{border-bottom:none}
.cat-block li::before{content:'✓';position:absolute;left:0;color:var(--green-light);font-weight:700}
.cat-block li span{display:block;color:var(--muted);font-size:.88rem}

/* ---------------- Production and references ---------------- */
.production-section{background:#fff}
.production-grid{align-items:stretch}
.production-card,.reference-card{background:var(--white);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.production-card img{width:100%;height:280px;object-fit:cover}
.production-body{padding:26px}
.production-body .eyebrow{display:block;color:var(--green-light);font-weight:700;text-transform:uppercase;font-size:.78rem;margin-bottom:8px}
.production-body h3,.reference-body h3{color:var(--green-dark);font-size:1.35rem;margin-bottom:10px}
.production-body p,.reference-body dd{color:var(--muted)}
.reference-card img{width:100%;height:260px;object-fit:cover}
.reference-body{padding:24px}
.reference-top{display:flex;justify-content:space-between;gap:16px;align-items:flex-start;margin-bottom:18px}
.reference-top span{background:#eef7f1;color:var(--green-dark);font-weight:700;border-radius:30px;padding:7px 12px;white-space:nowrap}
.reference-body dl{display:grid;grid-template-columns:150px 1fr;gap:8px 16px;margin:0}
.reference-body dt{font-weight:700;color:var(--green-dark)}
.reference-body dd{margin:0}

/* ---------------- CTA ---------------- */
.cta{position:relative;color:#fff;text-align:center;padding:90px 0;
    background-image:linear-gradient(rgba(0,84,61,.9),rgba(0,107,79,.9)),url('../images/cta.jpg');
    background-size:cover;background-position:center}
.cta h2{font-size:2.4rem;margin-bottom:14px}
.cta p{max-width:560px;margin:0 auto 28px;opacity:.95}

/* ---------------- Page header ---------------- */
.page-hero{background:linear-gradient(120deg,var(--green-darker),var(--green-dark));color:#fff;padding:70px 0;text-align:center}
.page-hero h1{font-size:2.6rem;margin-bottom:10px}
.page-hero p{opacity:.92;max-width:640px;margin:0 auto}

/* ---------------- Contact ---------------- */
.contact-grid{display:grid;grid-template-columns:1fr 1.3fr;gap:40px}
.contact-info{background:var(--white);border:1px solid var(--border);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow)}
.contact-info h3{color:var(--green-dark);margin-bottom:20px}
.contact-info .info-item{display:flex;gap:14px;margin-bottom:18px;align-items:flex-start}
.contact-info .info-item .ico{font-size:1.4rem}
.contact-info .info-item strong{display:block;color:var(--green-dark)}
.contact-info .info-item span{color:var(--muted)}
.contact-form{background:var(--white);border:1px solid var(--border);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow)}
.form-group{margin-bottom:18px}
.form-group label{display:block;font-weight:500;margin-bottom:6px}
.form-group label .req{color:#d33}
.form-control{width:100%;padding:12px 14px;border:1px solid var(--border);border-radius:10px;font-family:inherit;font-size:1rem;transition:.2s}
.form-control:focus{outline:none;border-color:var(--green-light);box-shadow:0 0 0 3px rgba(140,198,63,.2)}
textarea.form-control{min-height:130px;resize:vertical}
.form-note{font-size:.85rem;color:var(--muted);margin-bottom:14px}

/* ---------------- Alerts ---------------- */
.alert{padding:14px 18px;border-radius:10px;margin-bottom:20px;font-weight:500}
.alert-success{background:#e3f6ea;color:#137a3e;border:1px solid #aee0bf}
.alert-error{background:#fdeaea;color:#c0392b;border:1px solid #f3b8b2}

/* ---------------- Footer ---------------- */
.site-footer{background:var(--green-darker);color:#cfe6dd;padding-top:54px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1.2fr;gap:36px;padding-bottom:36px}
.footer-logo{color:#fff;font-size:1.5rem}
.footer-col p{margin-top:12px;font-size:.95rem;opacity:.85}
.footer-col h4{color:#fff;margin-bottom:16px;font-size:1.05rem}
.footer-col ul{list-style:none}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a:hover{color:var(--green-light)}
.footer-contact li{opacity:.9}
.footer-social{display:flex;gap:14px;margin-top:14px}
.footer-social a{font-size:.85rem;opacity:.85}
.footer-social a:hover{color:var(--green-light)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:18px 0;font-size:.9rem;opacity:.8}

/* Article content */
.article{max-width:880px;margin:0 auto}
.article h3{color:var(--green-dark);margin:24px 0 10px}
.article ul{margin:14px 0 14px 22px}
.article li{margin-bottom:8px}
.article p{margin-bottom:14px;color:var(--muted)}

/* ---------------- Responsive ---------------- */
@media(max-width:900px){
    .grid-3,.process-grid{grid-template-columns:repeat(2,1fr)}
    .split,.contact-grid{grid-template-columns:1fr}
    .hero h1{font-size:2.6rem}
    .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:680px){
    .nav-toggle-label{display:flex;flex-direction:column;cursor:pointer;width:30px;height:24px;justify-content:center}
    .nav-toggle-label span,.nav-toggle-label span::before,.nav-toggle-label span::after{
        content:'';display:block;height:3px;width:30px;background:var(--green-dark);border-radius:2px;position:relative;transition:.2s}
    .nav-toggle-label span::before{position:absolute;top:-9px}
    .nav-toggle-label span::after{position:absolute;top:9px}
    .main-nav{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;flex-direction:column;
        padding:10px 20px;box-shadow:var(--shadow)}
    .nav-toggle:checked ~ .main-nav{display:flex}
    .main-nav a{width:100%}
    .grid-3,.grid-2,.process-grid{grid-template-columns:1fr}
    .production-card img,.reference-card img{height:220px}
    .reference-body dl{grid-template-columns:1fr}
    .reference-top{flex-direction:column}
    .footer-grid{grid-template-columns:1fr}
    .hero{padding:80px 0}
    .hero h1{font-size:2.1rem}
    .topbar-inner{gap:10px;font-size:.78rem;flex-wrap:wrap}
    .topbar-lang{width:100%;margin-left:0;gap:4px}
    .topbar-lang a{padding:4px 7px}
}