:root{
  --bg:#f6f8ff;
  --text:#111827;
  --muted:#64748b;
  --card:#ffffff;
  --primary:#4f46e5;
  --primary2:#06b6d4;
  --accent:#f97316;
  --green:#10b981;
  --ring:rgba(79,70,229,.18);
  --border:#e5e7eb;
  --shadow:0 20px 55px rgba(15,23,42,.10);
  --radius:22px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;color:var(--text);background:
  radial-gradient(circle at 12% 10%, rgba(79,70,229,.13), transparent 28%),
  radial-gradient(circle at 88% 8%, rgba(6,182,212,.13), transparent 28%),
  linear-gradient(180deg,#fff 0%,var(--bg) 42%,#fff 100%);
}
a{color:inherit;text-decoration:none}
.container{max-width:1180px;margin:0 auto;padding:0 20px}
.header{position:sticky;top:0;z-index:10;background:rgba(255,255,255,.78);backdrop-filter:blur(16px);border-bottom:1px solid rgba(226,232,240,.75)}
.nav{height:74px;display:flex;align-items:center;justify-content:space-between;gap:18px}
.logo{display:flex;align-items:center;gap:10px;font-weight:900;font-size:24px;letter-spacing:-.03em}
.logo-mark{width:42px;height:42px;border-radius:14px;background:linear-gradient(135deg,var(--primary),var(--primary2));display:grid;place-items:center;box-shadow:0 10px 24px rgba(79,70,229,.25)}
.logo-mark svg{width:25px;height:25px}
.nav-links{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.nav-links a{padding:10px 12px;border-radius:999px;color:#334155;font-weight:700;font-size:14px}
.nav-links a:hover{background:#eef2ff;color:#3730a3}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:14px;background:linear-gradient(135deg,var(--primary),var(--primary2));color:#fff;font-weight:800;padding:13px 18px;cursor:pointer;box-shadow:0 12px 25px rgba(79,70,229,.22);transition:.18s ease}
.btn:hover{transform:translateY(-2px);box-shadow:0 18px 35px rgba(79,70,229,.27)}
.btn.secondary{background:#fff;color:var(--primary);border:1px solid #c7d2fe;box-shadow:none}
.hero{padding:72px 0 44px}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:34px;align-items:center}
.badge{display:inline-flex;gap:8px;align-items:center;padding:8px 12px;border:1px solid #c7d2fe;background:#eef2ff;color:#3730a3;border-radius:999px;font-weight:800;font-size:13px}
h1{font-size:clamp(38px,6vw,74px);line-height:.96;margin:18px 0 18px;letter-spacing:-.06em}
.lead{font-size:19px;line-height:1.7;color:var(--muted);max-width:760px}
.hero-card,.card,.calc-box,.article-card{background:rgba(255,255,255,.84);border:1px solid rgba(226,232,240,.9);border-radius:var(--radius);box-shadow:var(--shadow)}
.hero-card{padding:24px;position:relative;overflow:hidden}
.hero-card:before{content:"";position:absolute;inset:-80px -80px auto auto;width:220px;height:220px;background:linear-gradient(135deg,rgba(249,115,22,.22),rgba(6,182,212,.22));border-radius:50%}
.search-panel{position:relative;background:#fff;border:1px solid var(--border);border-radius:18px;padding:14px;box-shadow:0 14px 38px rgba(2,6,23,.08)}
.search-row{display:flex;gap:10px}
.search-row input{flex:1;border:0;outline:0;font-size:17px;padding:14px;border-radius:13px;background:#f8fafc}
.quick-chips{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}
.chip{display:inline-flex;align-items:center;padding:9px 12px;border-radius:999px;background:#fff;border:1px solid #e2e8f0;color:#334155;font-weight:700;font-size:13px}
.chip:hover{border-color:#a5b4fc;background:#eef2ff;color:#3730a3}
.section{padding:44px 0}
.section-title{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:22px}
h2{font-size:clamp(27px,3vw,42px);letter-spacing:-.04em;margin:0}
.section-title p{margin:8px 0 0;color:var(--muted);line-height:1.6}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.card,.article-card{padding:22px;transition:.18s ease}
.card:hover,.article-card:hover{transform:translateY(-4px);box-shadow:0 25px 60px rgba(15,23,42,.14)}
.icon{width:45px;height:45px;border-radius:16px;background:linear-gradient(135deg,#eef2ff,#ecfeff);display:grid;place-items:center;font-size:22px;margin-bottom:14px}
.card h3,.article-card h3{font-size:20px;margin:4px 0 9px;letter-spacing:-.03em}
.card p,.article-card p{color:var(--muted);line-height:1.6;margin:0}
.category{font-size:12px;font-weight:900;color:#4338ca;text-transform:uppercase;letter-spacing:.08em}
.calc-layout{display:grid;grid-template-columns:minmax(0,760px) minmax(280px,1fr);gap:26px;align-items:start}
.calc-box{padding:26px}
.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.field{display:flex;flex-direction:column;gap:7px}
label{font-weight:900;color:#1f2937;font-size:14px}
input,select,textarea{width:100%;border:1px solid #dbe3ef;background:#fff;border-radius:14px;padding:14px 15px;font-size:16px;outline:none;transition:.15s}
input:focus,select:focus,textarea:focus{border-color:#818cf8;box-shadow:0 0 0 5px var(--ring)}
.result{display:none;margin-top:20px;border-radius:18px;background:linear-gradient(135deg,#eef2ff,#ecfeff);border:1px solid #c7d2fe;padding:20px}
.result h3{margin:0 0 10px}
.result-row{display:flex;justify-content:space-between;gap:20px;border-top:1px solid rgba(79,70,229,.13);padding:11px 0;color:#334155}
.result-row strong{color:#0f172a}
.sidebar{display:grid;gap:16px}
.mini-box{padding:18px;border-radius:20px;background:#fff;border:1px solid var(--border);box-shadow:0 14px 35px rgba(15,23,42,.07)}
.ad-slot{display:none}
.content{max-width:880px;margin:30px auto 0;line-height:1.78;color:#334155;font-size:17px}
.content h2,.content h3{color:#111827;margin-top:30px}
.content ul{padding-left:22px}
.content li{margin:8px 0}
.notice{border-left:5px solid var(--primary);background:#eef2ff;padding:16px 18px;border-radius:16px;color:#334155}
.footer{margin-top:60px;background:#0f172a;color:#cbd5e1;padding:44px 0}
.footer-grid{display:grid;grid-template-columns:1.3fr .7fr .7fr;gap:24px}
.footer a{display:block;color:#cbd5e1;margin:9px 0}
.footer a:hover{color:#fff}
.tools-filter{margin:20px 0;display:flex;gap:12px;flex-wrap:wrap}
.tools-filter input{max-width:460px}
.kpi{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:22px}
.kpi div{background:#fff;border:1px solid var(--border);border-radius:18px;padding:18px;text-align:center}
.kpi b{font-size:24px;color:var(--primary)}
@media(max-width:900px){.hero-grid,.calc-layout,.footer-grid{grid-template-columns:1fr}.grid,.grid-4{grid-template-columns:repeat(2,1fr)}.form-grid{grid-template-columns:1fr}h1{font-size:44px}.nav{height:auto;padding:14px 0;align-items:flex-start}.nav-links{justify-content:flex-end}}
@media(max-width:620px){.grid,.grid-4{grid-template-columns:1fr}.search-row{flex-direction:column}.hero{padding:42px 0 24px}.nav{display:block}.nav-links{margin-top:12px}.logo{font-size:22px}.container{padding:0 14px}}

/* === Hesaplion visual balance patch v2 ===
   İçeriği değiştirmez; sadece ölçü, boşluk ve okunabilirlik düzenler. */
:root{
  --radius:18px;
  --shadow:0 14px 38px rgba(15,23,42,.08);
}
.container{max-width:1120px;padding:0 18px}
.nav{height:66px}
.logo{font-size:22px}
.logo-mark{width:38px;height:38px;border-radius:13px}
.logo-mark img{width:34px;height:34px}
.nav-links a{padding:8px 10px;font-size:13.5px}
.hero{padding:46px 0 30px}
.hero-grid{grid-template-columns:1.05fr .95fr;gap:26px}
.badge{font-size:12.5px;padding:7px 10px}
.hero h1{font-size:clamp(30px,4.6vw,54px);line-height:1.05;letter-spacing:-.045em;margin:14px 0 12px;max-width:720px}
.lead{font-size:16.5px;line-height:1.62;max-width:680px}
.search-panel{border-radius:16px;padding:11px;margin-top:18px;max-width:680px}
.search-row{gap:8px;align-items:center}
.search-row input{font-size:15.5px;padding:12px 13px;border-radius:12px;min-height:44px}
.search-row .btn{padding:12px 17px;min-height:44px;border-radius:12px;white-space:nowrap}
.quick-chips{gap:8px;margin-top:12px;align-items:flex-start}
.chip{padding:7px 10px;font-size:12.5px;line-height:1.15;white-space:normal;text-align:center}
.kpi{gap:10px;margin-top:16px;max-width:620px}
.kpi div{padding:13px 10px;border-radius:15px;font-size:13px;line-height:1.35}
.kpi b{font-size:20px}
.hero-card{padding:20px;border-radius:20px}
.hero-card h2{font-size:26px;line-height:1.15}
.hero-card .lead{font-size:15.5px;margin:8px 0 0}
.section{padding:34px 0}
.section-title{margin-bottom:18px;align-items:center}
h2{font-size:clamp(24px,2.5vw,34px);line-height:1.16;letter-spacing:-.035em}
.section-title p{font-size:15px;line-height:1.55}
.grid{gap:15px}
.grid-4{gap:14px}
.card,.article-card{padding:18px;border-radius:18px}
.card h3,.article-card h3{font-size:18px;line-height:1.25;margin:5px 0 7px}
.card p,.article-card p{font-size:14.5px;line-height:1.55}
.category{font-size:11px;line-height:1.2}
.icon{width:40px;height:40px;border-radius:14px;font-size:20px;margin-bottom:10px}
.btn{padding:11px 15px;border-radius:12px;font-size:14px;line-height:1.2}
.calc-layout{gap:22px;grid-template-columns:minmax(0,720px) minmax(270px,1fr)}
.calc-box{padding:22px;border-radius:20px}
.form-grid{gap:14px}
label{font-size:13.5px}
input,select,textarea{font-size:15px;padding:12px 13px;border-radius:12px}
.result{padding:17px;border-radius:16px}
.result-row{padding:9px 0;font-size:14.5px}
.mini-box{padding:16px;border-radius:18px;font-size:14.5px;line-height:1.55}
.content{max-width:840px;margin-top:24px;font-size:16px;line-height:1.72;color:#334155}
.content h1{font-size:clamp(30px,4vw,46px);line-height:1.08;letter-spacing:-.045em;margin:16px 0 12px}
.content h2{font-size:clamp(23px,2.4vw,31px);line-height:1.18;margin-top:26px;margin-bottom:10px}
.content h3{font-size:21px;line-height:1.25;margin-top:22px;margin-bottom:8px}
.content p{margin:12px 0}
.content li{margin:6px 0}
.notice{padding:14px 16px;border-radius:14px;font-size:15px;line-height:1.6}
.tools-filter{gap:10px;margin:16px 0}
.tools-filter input{max-width:420px}
.footer{margin-top:46px;padding:36px 0}
.footer p,.footer a{font-size:14.5px;line-height:1.55}

@media(max-width:900px){
  .hero{padding:36px 0 24px}
  .hero-grid{gap:20px}
  .hero h1{font-size:38px}
  .lead{font-size:15.5px}
  .section-title{align-items:flex-start}
  .grid,.grid-4{grid-template-columns:repeat(2,1fr)}
  .content{font-size:15.5px}
}
@media(max-width:620px){
  .container{padding:0 14px}
  .nav{padding:12px 0}
  .nav-links{gap:6px}
  .nav-links a{font-size:12.5px;padding:7px 9px}
  .hero{padding:28px 0 18px}
  .hero h1{font-size:32px;margin-top:12px}
  .search-panel{padding:10px;border-radius:15px}
  .search-row{flex-direction:column;align-items:stretch}
  .search-row .btn{width:100%}
  .quick-chips{gap:7px}
  .chip{font-size:12px;padding:7px 9px;max-width:100%}
  .kpi{grid-template-columns:repeat(3,1fr);gap:7px}
  .kpi div{padding:10px 6px;font-size:12px}
  .kpi b{font-size:18px}
  .hero-card{padding:16px}
  .hero-card h2{font-size:23px}
  .section{padding:28px 0}
  .section-title{display:block}
  .section-title .btn{margin-top:12px}
  .grid,.grid-4{grid-template-columns:1fr}
  .card,.article-card{padding:16px}
  .content{font-size:15.2px;line-height:1.68}
  .content h1{font-size:30px}
  .content h2{font-size:23px}
  .footer-grid{gap:18px}
}