/* ====== yazarkasabul.com — Genel Tasarım ====== */
:root{
  --primary:#29ABE2;      /* marka mavisi (logo) */
  --primary-dark:#1B8FC4;
  --accent:#F4CE14;       /* marka sarısı (logo) */
  --accent-ink:#0f172a;
  --navy:#0f172a;
  --navy-2:#1e293b;
  --wa:#25d366;
  --wa-dark:#1da851;
  --call:#2563eb;
  --bg:#f1f5f9;
  --card:#ffffff;
  --text:#0f172a;
  --muted:#64748b;
  --line:#e2e8f0;
  --radius:16px;
  --shadow:0 10px 30px rgba(2,8,23,.08);
  --shadow-lg:0 20px 50px rgba(2,8,23,.16);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  color:var(--text);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{width:min(1180px,92%);margin-inline:auto}

/* ====== Butonlar ====== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 22px;border:none;border-radius:12px;font-size:15px;font-weight:700;
  cursor:pointer;transition:.2s transform,.2s box-shadow,.2s background;white-space:nowrap;
}
.btn:hover{transform:translateY(-2px)}
.btn-lg{padding:16px 28px;font-size:16px;width:100%}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 8px 20px rgba(14,165,233,.35)}
.btn-primary:hover{background:var(--primary-dark)}
.btn-whatsapp{background:var(--wa);color:#fff;box-shadow:0 8px 20px rgba(37,211,102,.35)}
.btn-whatsapp:hover{background:var(--wa-dark)}
.btn-call{background:var(--call);color:#fff;box-shadow:0 8px 20px rgba(37,99,235,.3)}
.btn-call:hover{background:#1d4ed8}
.btn-contact{background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;width:100%;box-shadow:0 8px 20px rgba(14,165,233,.3)}

/* ====== Header ====== */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:14px 0;gap:16px}
.logo{display:flex;align-items:center;gap:10px}
.logo-img{height:48px;width:auto;display:block}
.logo-mark{display:grid;place-items:center;width:40px;height:40px;border-radius:11px;background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;font-weight:800;font-size:16px}
.logo-text{font-weight:700;color:var(--navy)}
.logo-text strong{color:var(--primary)}
.main-nav{display:flex;gap:26px;font-weight:600}
.main-nav a{color:var(--navy-2);transition:.2s color}
.main-nav a:hover{color:var(--primary)}
.header-call{font-size:14px;padding:10px 16px}

/* ====== Hero ====== */
.hero{position:relative;background:radial-gradient(1200px 500px at 80% -10%,rgba(14,165,233,.25),transparent),linear-gradient(135deg,var(--navy),var(--navy-2));color:#fff;padding:72px 0 84px;overflow:hidden}
.hero-eyebrow{display:inline-block;background:rgba(255,255,255,.12);padding:7px 14px;border-radius:30px;font-size:13px;font-weight:600;margin-bottom:18px}
.hero h1{font-size:clamp(30px,5vw,50px);line-height:1.12;font-weight:800;margin-bottom:16px;letter-spacing:-.5px}
.hero-text p{font-size:clamp(16px,2vw,19px);color:#cbd5e1;max-width:640px;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px}
.hero-badges{display:flex;flex-wrap:wrap;gap:22px;list-style:none;color:#e2e8f0;font-weight:600;font-size:15px}

/* ====== Bölüm başlığı ====== */
.section-head{text-align:center;max-width:720px;margin:0 auto 46px}
.section-head h2{font-size:clamp(26px,3.5vw,38px);font-weight:800;color:var(--navy);letter-spacing:-.5px}
.section-head p{color:var(--muted);margin-top:12px;font-size:17px}

/* ====== Ürünler ====== */
.products-section{padding:72px 0}
.product-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:26px}
.product-card{position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;box-shadow:var(--shadow);transition:.25s transform,.25s box-shadow;scroll-margin-top:90px}
.product-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.badge{position:absolute;top:14px;left:14px;z-index:2;background:var(--accent);color:var(--accent-ink);font-size:12px;font-weight:800;padding:6px 12px;border-radius:30px;box-shadow:0 4px 12px rgba(244,206,20,.45)}
.product-img{aspect-ratio:4/3;background:#f8fafc;display:grid;place-items:center;overflow:hidden}
.product-img img{width:100%;height:100%;object-fit:cover;transition:.4s transform}
.product-card:hover .product-img img{transform:scale(1.05)}
.product-body{padding:22px;display:flex;flex-direction:column;flex:1}
.product-brand{font-size:13px;font-weight:700;color:var(--primary);text-transform:uppercase;letter-spacing:.5px}
.product-body h3{font-size:21px;font-weight:800;color:var(--navy);margin:4px 0 10px}
.product-desc{color:var(--muted);font-size:14.5px;margin-bottom:14px}
.product-features{list-style:none;margin-bottom:18px;display:flex;flex-direction:column;gap:7px}
.product-features li{position:relative;padding-left:24px;font-size:14px;color:var(--navy-2)}
.product-features li::before{content:"✓";position:absolute;left:0;top:0;width:17px;height:17px;background:var(--wa);color:#fff;border-radius:50%;font-size:11px;display:grid;place-items:center;font-weight:800;margin-top:3px}
.product-footer{margin-top:auto;display:flex;flex-direction:column;gap:14px;padding-top:14px;border-top:1px solid var(--line)}
.product-price{font-size:28px;font-weight:800;color:var(--navy)}

/* ====== Neden Biz ====== */
.features-section{padding:72px 0;background:#fff;border-block:1px solid var(--line)}
.feature-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:24px}
.feature-box{text-align:center;padding:30px 22px;border-radius:var(--radius);background:var(--bg);transition:.2s transform}
.feature-box:hover{transform:translateY(-4px)}
.feature-box .fi{font-size:38px;display:block;margin-bottom:14px}
.feature-box h3{font-size:18px;color:var(--navy);margin-bottom:8px}
.feature-box p{color:var(--muted);font-size:14.5px}

/* ====== İletişim ====== */
.contact-section{padding:72px 0;background:linear-gradient(135deg,var(--navy),var(--navy-2));color:#fff}
.contact-inner{display:grid;grid-template-columns:1.4fr 1fr;gap:48px;align-items:center}
.contact-section h2{font-size:clamp(26px,3.5vw,36px);font-weight:800;margin-bottom:14px}
.contact-section p{color:#cbd5e1;margin-bottom:22px;font-size:17px}
.contact-list{list-style:none;display:flex;flex-direction:column;gap:14px;font-size:18px}
.contact-list a:hover{color:var(--primary)}
.contact-cta{display:flex;flex-direction:column;gap:14px;background:rgba(255,255,255,.06);padding:28px;border-radius:var(--radius)}

/* ====== Footer ====== */
.site-footer{background:#0b1220;color:#94a3b8;padding:30px 0;text-align:center;font-size:14px}
.footer-logo{height:54px;width:auto;margin:0 auto 14px;background:#fff;padding:8px 14px;border-radius:12px}
.site-footer .footer-links{margin-top:8px}
.site-footer a{color:#64748b}
.site-footer a:hover{color:var(--primary)}

/* ====== Sabit WhatsApp ====== */
.float-wa{position:fixed;right:20px;bottom:20px;z-index:60;width:60px;height:60px;border-radius:50%;background:var(--wa);color:#fff;display:grid;place-items:center;box-shadow:0 10px 25px rgba(37,211,102,.5);animation:pulse 2.5s infinite}
.float-wa:hover{background:var(--wa-dark);transform:scale(1.06)}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(37,211,102,.5)}70%{box-shadow:0 0 0 16px rgba(37,211,102,0)}100%{box-shadow:0 0 0 0 rgba(37,211,102,0)}}

/* ====== İletişim Modalı ====== */
.contact-modal{position:fixed;inset:0;z-index:100;display:grid;place-items:center;padding:20px}
.contact-modal[hidden]{display:none}
.modal-backdrop{position:absolute;inset:0;background:rgba(2,8,23,.6);backdrop-filter:blur(3px)}
.modal-card{position:relative;background:#fff;border-radius:20px;padding:34px 28px;width:min(420px,100%);text-align:center;box-shadow:var(--shadow-lg);animation:pop .25s ease}
@keyframes pop{from{transform:scale(.9);opacity:0}to{transform:scale(1);opacity:1}}
.modal-card h3{font-size:22px;color:var(--navy);margin-bottom:6px}
.modal-product{color:var(--primary);font-weight:700;margin-bottom:22px}
.modal-actions{display:flex;flex-direction:column;gap:12px}
.modal-close{position:absolute;top:12px;right:16px;background:none;border:none;font-size:28px;line-height:1;color:var(--muted);cursor:pointer}
.modal-close:hover{color:var(--navy)}

/* ====== Mobil ====== */
@media(max-width:820px){
  .main-nav,.header-call{display:none}
  .contact-inner{grid-template-columns:1fr;gap:30px}
  .hero{padding:54px 0 64px}
}