/* ZESTRA - Web sitesi stilleri */
:root{
  --primary:#1f6fd6; --accent:#e5383b; --banner-bg:#eaf3ff; --banner-text:#0d2747;
  --ink:#0d2747; --muted:#5d7392; --line:#dfe8f3; --bg:#f6f9fd; --white:#fff;
  --radius:18px; --shadow:0 20px 50px -20px rgba(13,39,71,.25); --shadow-sm:0 6px 20px -8px rgba(13,39,71,.18);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{margin:0;font-family:'Plus Jakarta Sans',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;color:var(--ink);background:var(--white);line-height:1.6;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none}
h1,h2,h3,h4{line-height:1.2;margin:0 0 .5em;letter-spacing:-.02em}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.ico{flex:none}

/* Butonlar */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:12px;padding:12px 20px;font:inherit;font-weight:700;font-size:15px;cursor:pointer;transition:transform .15s,box-shadow .2s,background .2s;white-space:nowrap}
.btn:hover{transform:translateY(-1px)}
.btn-sm{padding:9px 16px;font-size:14px}
.btn-lg{padding:15px 26px;font-size:16px}
.btn-block{width:100%}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 10px 24px -10px var(--primary)}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 10px 24px -10px var(--accent)}
.btn-ghost{background:rgba(255,255,255,.7);color:var(--banner-text);border:1px solid rgba(13,39,71,.12)}
.btn-white{background:#fff;color:var(--primary)}
.btn-outline-white{background:transparent;color:#fff;border:2px solid rgba(255,255,255,.7)}
.btn[disabled]{opacity:.6;pointer-events:none}

/* Üst menü */
.topbar{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.88);backdrop-filter:saturate(1.6) blur(12px);border-bottom:1px solid var(--line)}
.topbar-in{display:flex;align-items:center;gap:24px;height:72px}
.brand{display:flex;align-items:center}
.brand svg{height:44px;width:auto}
.logo-img{height:44px;width:auto}
.nav{display:flex;gap:28px;margin-left:auto}
.nav a{color:var(--ink);font-weight:600;font-size:15px;position:relative}
.nav a::after{content:"";position:absolute;left:0;right:100%;bottom:-6px;height:2px;background:var(--accent);transition:right .2s}
.nav a:hover::after{right:0}
.topbar-cta{display:flex;align-items:center;gap:14px}
.tel{display:inline-flex;align-items:center;gap:6px;color:var(--ink);font-weight:600;font-size:14px}
.menu-btn{display:none;background:none;border:0;padding:8px;cursor:pointer}
.menu-btn span{display:block;width:22px;height:2px;background:var(--ink);margin:5px 0;border-radius:2px}

/* Banner */
.hero{position:relative;background:var(--banner-bg);color:var(--banner-text);overflow:hidden;padding:64px 0 140px}
.hero-deco{position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(600px 300px at 85% 10%,rgba(255,255,255,.75),transparent 70%),
             radial-gradient(400px 400px at -5% 110%,color-mix(in srgb,var(--primary) 18%,transparent),transparent 70%)}
.hero-deco::after{content:"";position:absolute;right:-120px;bottom:-160px;width:420px;height:420px;border-radius:50%;border:56px solid color-mix(in srgb,var(--accent) 10%,transparent)}
.hero-in{position:relative;display:grid;grid-template-columns:1.02fr 1fr;gap:48px;align-items:center}
.kicker{display:inline-flex;align-items:center;gap:10px;background:#fff;padding:7px 14px 7px 10px;border-radius:999px;font-size:13px;font-weight:700;color:var(--primary);box-shadow:var(--shadow-sm)}
.kicker i{width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px color-mix(in srgb,var(--accent) 20%,transparent)}
.hero h1{font-size:clamp(34px,5vw,58px);font-weight:800;margin:20px 0 18px;letter-spacing:-.035em;color:var(--banner-text)}
.lead{font-size:18px;color:color-mix(in srgb,var(--banner-text) 75%,transparent);max-width:540px;margin:0 0 30px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.stats{display:flex;gap:36px;margin:40px 0 0;padding:0}
.stats div{border-left:3px solid var(--accent);padding-left:14px}
.stats dt{font-size:22px;font-weight:800}
.stats dd{margin:0;font-size:13px;color:color-mix(in srgb,var(--banner-text) 65%,transparent);font-weight:500}
.hero-media{position:relative}
.hero-img{border-radius:32px;overflow:hidden;box-shadow:var(--shadow);background:#fff;transform:rotate(1.2deg);border:6px solid #fff}
.hero-img img{width:100%;aspect-ratio:640/460;object-fit:cover}

/* Form */
.form-section{position:relative;margin-top:-96px;z-index:5;padding-bottom:30px}
.form-card{background:#fff;border-radius:24px;box-shadow:var(--shadow);padding:30px 32px 26px;border:1px solid var(--line);position:relative;overflow:hidden}
.form-card::before{content:"";position:absolute;left:0;top:0;right:0;height:5px;background:linear-gradient(90deg,var(--primary) 0 70%,var(--accent) 70%)}
.form-head{display:flex;justify-content:space-between;align-items:flex-start;gap:20px;margin-bottom:20px}
.form-head h2{font-size:24px;margin:0 0 4px}
.form-head p{margin:0;color:var(--muted)}
.wa-inline{display:inline-flex;align-items:center;gap:8px;background:#e9f9ef;color:#128c4a;font-weight:700;padding:10px 16px;border-radius:12px;font-size:14px;white-space:nowrap}
.wa-inline .wa-ico{width:22px;height:22px}
.lead-form{display:grid;grid-template-columns:repeat(4,1fr);gap:16px 18px}
.field label{display:block;font-size:13px;font-weight:700;margin-bottom:6px}
.field input{width:100%;font:inherit;font-size:15px;padding:12px 14px;border-radius:12px;border:1.5px solid var(--line);background:var(--bg);color:var(--ink);transition:border .15s,background .15s}
.field input:focus{outline:none;border-color:var(--primary);background:#fff;box-shadow:0 0 0 4px color-mix(in srgb,var(--primary) 14%,transparent)}
.field input.invalid{border-color:var(--accent);background:#fff6f6}
.captcha-field{grid-column:span 2}
.captcha-row{display:flex;gap:10px;align-items:center}
.captcha-row img{border-radius:10px;border:1.5px solid var(--line);flex:none;height:48px;width:150px;background:#f1f6fc}
.captcha-refresh{flex:none;width:44px;height:48px;border-radius:10px;border:1.5px solid var(--line);background:#fff;font-size:20px;cursor:pointer;color:var(--primary)}
.captcha-row input{text-transform:uppercase;letter-spacing:3px;font-weight:700}
.submit-field{grid-column:span 2;display:flex;flex-direction:column;justify-content:flex-end;gap:10px}
.check{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--muted);font-weight:500 !important;cursor:pointer}
.check input{width:18px;height:18px;margin:2px 0 0;accent-color:var(--primary);flex:none}
.hp{position:absolute !important;left:-9999px !important;width:1px;height:1px;opacity:0}
.form-msg{grid-column:1/-1;display:none;padding:12px 16px;border-radius:12px;font-weight:600;font-size:14px}
.form-msg.ok{display:block;background:#e7f7ee;color:#14693c}
.form-msg.err{display:block;background:#fdecec;color:#b42323}

/* Bölümler */
.section{padding:84px 0}
.section-alt{background:var(--bg)}
.sec-head{text-align:center;max-width:640px;margin:0 auto 46px}
.sec-head h2,.sol-intro h2{font-size:clamp(28px,3.4vw,40px);font-weight:800}
.eyebrow{display:inline-block;color:var(--accent);font-weight:800;font-size:13px;letter-spacing:.14em;text-transform:uppercase;margin-bottom:10px}
.features{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.feature{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px 24px;transition:transform .2s,box-shadow .2s}
.feature:hover{transform:translateY(-4px);box-shadow:var(--shadow-sm)}
.f-ico{width:54px;height:54px;border-radius:16px;display:grid;place-items:center;background:color-mix(in srgb,var(--primary) 10%,#fff);color:var(--primary);margin-bottom:18px}
.feature:nth-child(even) .f-ico{background:color-mix(in srgb,var(--accent) 10%,#fff);color:var(--accent)}
.feature h3{font-size:18px}
.feature p{margin:0;color:var(--muted);font-size:15px}

.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:22px;counter-reset:s}
.steps li{position:relative;background:#fff;border-radius:var(--radius);padding:30px 24px 26px;border:1px solid var(--line)}
.steps li:not(:last-child)::after{content:"";position:absolute;top:50px;right:-22px;width:22px;border-top:2px dashed color-mix(in srgb,var(--primary) 40%,transparent)}
.step-no{display:inline-grid;place-items:center;width:44px;height:44px;border-radius:50%;background:var(--primary);color:#fff;font-weight:800;margin-bottom:16px;box-shadow:0 0 0 6px color-mix(in srgb,var(--primary) 14%,transparent)}
.steps li:last-child .step-no{background:var(--accent);box-shadow:0 0 0 6px color-mix(in srgb,var(--accent) 14%,transparent)}
.steps h3{font-size:18px}
.steps p{margin:0;color:var(--muted);font-size:15px}

/* Akıllı Çözümler */
.solutions{display:grid;grid-template-columns:.8fr 1.2fr;gap:56px;align-items:start}
.sol-intro{position:sticky;top:110px}
.sol-intro p{color:var(--muted);font-size:17px;margin:0 0 24px}
.accordion{display:flex;flex-direction:column;gap:12px}
.acc{background:#fff;border:1px solid var(--line);border-radius:16px;transition:box-shadow .2s,border-color .2s}
.acc[open]{border-color:color-mix(in srgb,var(--primary) 35%,transparent);box-shadow:var(--shadow-sm)}
.acc summary{list-style:none;display:flex;align-items:center;gap:14px;padding:18px 20px;cursor:pointer;font-weight:700;font-size:17px}
.acc summary::-webkit-details-marker{display:none}
.acc-ico{width:40px;height:40px;border-radius:12px;display:grid;place-items:center;background:color-mix(in srgb,var(--primary) 10%,#fff);color:var(--primary);flex:none}
.acc[open] .acc-ico{background:var(--primary);color:#fff}
.acc-title{flex:1}
.acc-chev{width:28px;height:28px;border-radius:50%;background:var(--bg);position:relative;flex:none;transition:transform .25s,background .2s}
.acc-chev::before{content:"";position:absolute;left:10px;top:9px;width:7px;height:7px;border-right:2px solid var(--ink);border-bottom:2px solid var(--ink);transform:rotate(45deg)}
.acc[open] .acc-chev{transform:rotate(180deg);background:color-mix(in srgb,var(--accent) 12%,#fff)}
.acc[open] .acc-chev::before{border-color:var(--accent)}
.acc-body{padding:0 20px 20px 74px;color:var(--muted);font-size:15.5px}

/* CTA */
.cta-band{background:linear-gradient(120deg,var(--primary),color-mix(in srgb,var(--primary) 70%,#0d2747));color:#fff;position:relative;overflow:hidden}
.cta-band::after{content:"";position:absolute;right:-60px;top:-80px;width:280px;height:280px;border-radius:50%;background:var(--accent);opacity:.9}
.cta-in{display:flex;justify-content:space-between;align-items:center;gap:30px;padding:56px 20px;position:relative;z-index:1}
.cta-in h2{font-size:clamp(24px,3vw,34px);margin:0 0 6px}
.cta-in p{margin:0;opacity:.85}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* Footer */
.footer{background:#0b1f3a;color:#b9c8dc;padding:60px 0 0}
.footer-in{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px}
.footer .brand svg text{fill:#fff}
.footer .brand svg text tspan{fill:var(--accent)}
.footer .brand svg text + text{fill:#8aa0bd}
.f-brand p{max-width:360px;margin:16px 0 0}
.footer h4{color:#fff;font-size:16px;margin-bottom:16px}
.f-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.f-list li{display:flex;gap:10px;align-items:flex-start}
.f-list .ico{margin-top:3px;color:var(--accent)}
.f-list a{color:#dbe5f2}
.f-list a:hover{color:#fff}
.copy{border-top:1px solid rgba(255,255,255,.08);margin-top:44px;padding:20px;font-size:13px;color:#7f93ad;text-align:center;max-width:none}

/* WhatsApp sabit buton */
.wa-float{position:fixed;right:22px;bottom:26px;z-index:60;width:62px;height:62px;border-radius:50%;background:#25d366;color:#fff;display:grid;place-items:center;box-shadow:0 12px 30px -8px rgba(37,211,102,.7)}
.wa-float .wa-ico{width:34px;height:34px}
.wa-float::before{content:"";position:absolute;inset:0;border-radius:50%;background:#25d366;animation:pulse 2.2s infinite;z-index:-1}
.wa-tip{position:absolute;right:76px;white-space:nowrap;background:#fff;color:var(--ink);font-weight:700;font-size:14px;padding:9px 14px;border-radius:10px;box-shadow:var(--shadow-sm);opacity:0;transform:translateX(8px);transition:.2s;pointer-events:none}
.wa-float:hover .wa-tip{opacity:1;transform:none}
@keyframes pulse{0%{transform:scale(1);opacity:.6}100%{transform:scale(1.6);opacity:0}}

/* Mobil */
@media (max-width:1024px){
  .lead-form{grid-template-columns:1fr 1fr}
  .features,.steps{grid-template-columns:1fr 1fr}
  .steps li::after{display:none}
  .tel{display:none}
}
@media (max-width:860px){
  .hero{padding:40px 0 130px}
  .hero-in{grid-template-columns:1fr;gap:34px}
  .hero-img{transform:none}
  .stats{gap:20px;flex-wrap:wrap}
  .solutions{grid-template-columns:1fr;gap:30px}
  .sol-intro{position:static}
  .nav{position:fixed;top:72px;left:0;right:0;background:#fff;flex-direction:column;gap:0;padding:8px 20px 16px;border-bottom:1px solid var(--line);box-shadow:var(--shadow-sm);transform:translateY(-130%);transition:transform .25s;z-index:-1}
  .nav a{padding:12px 0;border-bottom:1px solid var(--line)}
  .nav-open .nav{transform:none}
  .menu-btn{display:block}
  .footer-in{grid-template-columns:1fr}
  .cta-in{flex-direction:column;align-items:flex-start}
  .form-head{flex-direction:column}
}
@media (max-width:600px){
  .wrap{padding:0 16px}
  .lead-form{grid-template-columns:1fr}
  .captcha-field,.submit-field{grid-column:auto}
  .features,.steps{grid-template-columns:1fr}
  .form-card{padding:24px 18px}
  .brand svg,.logo-img{height:38px}
  .topbar-cta .btn{display:none}
  .acc-body{padding-left:20px}
  .section{padding:60px 0}
  .wa-float{right:16px;bottom:18px;width:56px;height:56px}
  .wa-tip{display:none}
  .captcha-row{flex-wrap:wrap}
  .captcha-row input{flex:1 1 100%}
}