:root{
  --blue-900:#0b2a5b;
  --blue-700:#14489e;
  --blue-600:#1a56c4;
  --blue-500:#2f6fe0;
  --cyan:#35b6d6;
  --ink:#111318;
  --ink-2:#3d434d;
  --ink-3:#6b7280;
  --ink-4:#9aa1ac;
  --line:#dfe3e8;
  --bg:#ffffff;
  --bg-soft:#f3f6fb;
  --bg-card:#ffffff;
  --radius:12px;
  --shadow:0 8px 30px rgba(11,42,91,.08);
  --grad:linear-gradient(135deg,var(--blue-600),var(--cyan));
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--sans);color:var(--ink);background:var(--bg);line-height:1.5}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:none;background:none}
.container{max-width:1120px;margin:0 auto;padding:0 24px}

/* ---------- Butonlar ---------- */
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 22px;border-radius:10px;font-size:15px;font-weight:600;transition:transform .15s ease,box-shadow .15s ease,background .15s ease}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 6px 18px rgba(26,86,196,.30)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 10px 24px rgba(26,86,196,.36)}
.btn-ghost{border:1px solid var(--line);color:var(--ink-2);background:#fff}
.btn-ghost:hover{border-color:var(--blue-500);color:var(--blue-600)}
.btn-sm{padding:8px 16px;font-size:14px}

/* ---------- Nav ---------- */
.nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.9);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;gap:24px;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:var(--blue-900)}
.brand img{height:26px;width:auto}
.nav-links{display:flex;gap:24px;margin-left:24px;font-size:15px;color:var(--ink-2)}
.nav-links a:hover{color:var(--blue-600)}
.nav .btn{margin-left:auto}
.nav-toggle{display:none;margin-left:auto;width:40px;height:40px;border-radius:8px;color:var(--ink-2)}
.nav-toggle:hover{background:var(--bg-soft);color:var(--ink)}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:radial-gradient(900px 480px at 80% -10%,rgba(53,182,214,.16),transparent 60%),radial-gradient(700px 420px at 10% 110%,rgba(26,86,196,.12),transparent 60%),var(--bg-soft)}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;padding:72px 24px}
.hero h1{font-size:clamp(32px,4.6vw,52px);line-height:1.12;letter-spacing:0;font-weight:800;color:var(--blue-900)}
.hero h1 em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p{margin:20px 0 28px;font-size:18px;color:var(--ink-2);max-width:34em}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap}
.hero-badge{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--blue-700);background:rgba(26,86,196,.08);border:1px solid rgba(26,86,196,.18);padding:6px 14px;border-radius:999px;margin-bottom:20px}

/* Sohbet mockup */
.mockup{background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);overflow:hidden}
.mockup-top{display:flex;align-items:center;gap:10px;padding:12px 16px;border-bottom:1px solid var(--line)}
.mockup-top img{height:20px;width:auto}
.mockup-top b{font-size:14px;color:var(--blue-900)}
.mockup-top span{margin-left:auto;font-size:12px;color:var(--ink-4);border:1px solid var(--line);border-radius:6px;padding:2px 8px}
.mockup-body{padding:16px;display:flex;flex-direction:column;gap:12px;min-height:280px}
.bubble{max-width:85%;padding:10px 14px;border-radius:12px;font-size:14.5px;line-height:1.55}
.bubble.user{align-self:flex-end;background:var(--blue-900);color:#fff;border-bottom-right-radius:4px}
.bubble.ai{align-self:flex-start;background:var(--bg-soft);color:var(--ink);border:1px solid var(--line);border-bottom-left-radius:4px}
.bubble.ai code{font-family:var(--mono);font-size:13px;background:#e8edf5;border-radius:4px;padding:1px 5px}
.mockup-input{display:flex;gap:8px;padding:12px 16px;border-top:1px solid var(--line)}
.mockup-input .fake{flex:1;border:1px solid var(--line);border-radius:10px;padding:10px 14px;font-size:14px;color:var(--ink-4);background:#fff}
.mockup-input .send{width:38px;height:38px;border-radius:9px;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center}
.typing{display:inline-flex;gap:4px;padding:4px 2px}
.typing i{width:6px;height:6px;border-radius:50%;background:var(--ink-4);animation:blink 1.2s infinite}
.typing i:nth-child(2){animation-delay:.2s}
.typing i:nth-child(3){animation-delay:.4s}
@keyframes blink{0%,80%,100%{opacity:.25}40%{opacity:1}}

/* ---------- Bölümler ---------- */
.section{padding:72px 0}
.section-head{text-align:center;max-width:640px;margin:0 auto 48px}
.section-head .tag{font-size:13px;font-weight:700;color:var(--blue-600);text-transform:uppercase;letter-spacing:.06em}
.section-head h2{font-size:clamp(26px,3vw,36px);color:var(--blue-900);margin:8px 0 12px}
.section-head p{color:var(--ink-2);font-size:16px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.card{background:var(--bg-card);border:1px solid var(--line);border-radius:var(--radius);padding:24px;transition:transform .15s ease,box-shadow .15s ease}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.card .ico{width:44px;height:44px;border-radius:10px;background:rgba(26,86,196,.09);color:var(--blue-600);display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.card h3{font-size:17px;color:var(--ink);margin-bottom:8px}
.card p{font-size:14.5px;color:var(--ink-3)}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.step{text-align:center;padding:32px 24px}
.step .no{width:36px;height:36px;margin:0 auto 16px;border-radius:50%;background:var(--grad);color:#fff;font-weight:700;display:flex;align-items:center;justify-content:center}
.step h3{font-size:17px;margin-bottom:8px;color:var(--ink)}
.step p{font-size:14.5px;color:var(--ink-3)}

/* CTA bandı */
.cta-band{background:var(--grad);border-radius:16px;padding:48px 32px;text-align:center;color:#fff}
.cta-band h2{font-size:clamp(24px,3vw,34px);margin-bottom:12px}
.cta-band p{opacity:.92;margin-bottom:24px}
.btn-white{background:#fff;color:var(--blue-700)}
.btn-white:hover{transform:translateY(-1px)}

/* Footer */
.footer{border-top:1px solid var(--line);padding:32px 0;color:var(--ink-3);font-size:14px}
.footer-inner{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.footer img{height:20px;width:auto}
.footer nav{margin-left:auto;display:flex;gap:20px}
.footer a:hover{color:var(--blue-600)}

/* ---------- Sohbet uygulaması ---------- */
.app-shell{display:flex;height:100vh;min-height:520px}
.app-side{width:260px;flex:none;display:flex;flex-direction:column;gap:10px;padding:14px;border-right:1px solid var(--line);background:var(--bg-soft)}
.app-new{display:flex;align-items:center;gap:8px;padding:11px 14px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--ink);font-size:14px;font-weight:600;transition:background .15s ease}
.app-new:hover{background:#eef3fb}
.side-label{font-size:12px;color:var(--ink-3);padding:2px 6px 0}
.side-hist{overflow:auto;flex:1;display:flex;flex-direction:column;gap:2px}
.side-none{padding:8px 6px;font-size:12px;color:var(--ink-4)}
.hist-item{position:relative;display:flex;align-items:center;gap:6px;width:100%;padding:9px 10px;border-radius:8px;font-size:14px;color:var(--ink-2);text-align:left;border:none;background:transparent}
.hist-item:hover{background:#e9eff8}
.hist-item.on{background:#e9eff8;color:var(--ink);font-weight:600}
.hist-item>span:first-child{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.hist-del{opacity:0;flex:none;display:flex;padding:3px;border-radius:6px;color:var(--ink-4);transition:opacity .12s ease}
.hist-item:hover .hist-del,.hist-item:focus-within .hist-del{opacity:1}
.hist-del:hover{background:#fff;color:#d33}
.side-foot{font-size:11.5px;color:var(--ink-4);padding:6px}
.app-main{flex:1;display:flex;flex-direction:column;min-width:0}
.app-top{height:56px;flex:none;display:flex;align-items:center;gap:10px;padding:0 16px;border-bottom:1px solid var(--line);background:#fff}
.app-top .brand{font-size:16px}
.app-top .brand img{height:22px}
.chip{margin-left:auto;font-size:12px;color:var(--ink-3);border:1px solid var(--line);border-radius:6px;padding:2px 8px}
.app-body{flex:1;overflow-y:auto;padding:24px 20px;background:#fff}
.chat-col{max-width:760px;margin:0 auto;display:flex;flex-direction:column;gap:18px}
.empty-state{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;padding:24px;text-align:center}
.empty-state img{height:72px;width:auto}
.empty-state h1{font-size:clamp(22px,3vw,30px);color:var(--blue-900)}
.sug-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;max-width:560px;width:100%;margin-top:6px}
.sug{border:1px solid var(--line);border-radius:10px;background:#fff;padding:14px;text-align:left;transition:border-color .15s ease,background .15s ease}
.sug:hover{border-color:var(--blue-500);background:var(--bg-soft)}
.sug b{display:block;font-size:14.5px;color:var(--ink)}
.sug i{font-style:normal;font-size:12.5px;color:var(--ink-3)}
.msg{display:flex;gap:10px}
.msg.user{justify-content:flex-end}
.avatar{width:30px;height:30px;flex:none;border-radius:9px;background:#e8eef7;display:flex;align-items:center;justify-content:center;border:1px solid var(--line)}
.avatar img{height:20px;width:auto}
.msg-body{min-width:0;max-width:85%;font-size:16px;line-height:1.55;color:var(--ink)}
.msg-body p{margin:0 0 8px}
.msg-body ul{margin:0 0 8px;padding-left:20px}
.msg-body pre{background:var(--bg-soft);border:1px solid var(--line);border-radius:10px;padding:12px;overflow:auto;font-family:var(--mono);font-size:13px;line-height:1.5;margin:8px 0}
.msg-body .icn{font-family:var(--mono);font-size:13px;background:var(--bg-soft);border:1px solid var(--line);border-radius:4px;padding:0 4px}
.bubble-user{background:var(--blue-900);color:#fff;border-radius:14px;border-bottom-right-radius:4px;padding:10px 14px;overflow-wrap:break-word}
.msg-actions{display:flex;gap:4px;margin-top:4px;opacity:0;transition:opacity .12s ease}
.msg:hover .msg-actions{opacity:1}
.act{width:28px;height:28px;border-radius:8px;color:var(--ink-4);display:flex;align-items:center;justify-content:center}
.act:hover{background:var(--bg-soft);color:var(--ink)}
.app-foot{flex:none;padding:14px 20px 18px;background:#fff;border-top:1px solid var(--line)}
.composer{max-width:760px;margin:0 auto;background:#fff;border:1px solid var(--line);border-radius:14px;padding:10px 10px 10px 16px;display:flex;align-items:flex-end;gap:8px;box-shadow:0 4px 16px rgba(11,42,91,.06)}
.composer:focus-within{border-color:var(--blue-500)}
.composer textarea{flex:1;border:none;outline:none;resize:none;background:transparent;color:var(--ink);font-size:16px;line-height:1.5;max-height:130px;padding:4px 0;font-family:var(--sans)}
.composer textarea::placeholder{color:var(--ink-4)}
.round{width:36px;height:36px;flex:none;border-radius:9px;display:flex;align-items:center;justify-content:center;background:var(--grad);color:#fff}
.round:disabled{opacity:.35;cursor:default}
.foot-note{max-width:760px;margin:8px auto 0;font-size:12px;color:var(--ink-4);text-align:center}
.app-toggle{display:none;width:34px;height:34px;border-radius:8px;color:var(--ink-2)}
.app-toggle:hover{background:var(--bg-soft)}

/* ---------- Duyarlılık ---------- */
@media (max-width:900px){
  .hero-grid{grid-template-columns:1fr;padding:56px 24px;gap:32px}
  .grid-4{grid-template-columns:1fr 1fr}
  .grid-3{grid-template-columns:1fr}
}
@media (max-width:760px){
  .nav-links{display:none;position:absolute;top:64px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);flex-direction:column;padding:16px 24px;gap:14px}
  .nav-links.open{display:flex}
  .nav-toggle{display:flex;align-items:center;justify-content:center}
  .nav .btn{display:none}
  .app-side{position:fixed;z-index:60;top:0;bottom:0;left:0;transform:translateX(-100%);transition:transform .2s ease;box-shadow:0 0 40px rgba(0,0,0,.15)}
  .app-side.open{transform:none}
  .app-toggle{display:flex;align-items:center;justify-content:center}
  .sug-grid{grid-template-columns:1fr}
  .msg-body{max-width:100%}
}
@media (max-width:560px){
  .grid-4{grid-template-columns:1fr}
  .hero p{font-size:16px}
}
iframe[src*="netlify"] { display: none !important; }
div:has(iframe[src*="netlify"]) { display: none !important; }
body { padding-bottom: 0 !important; }
.nl-wrap, .nl-badge { display: none !important; }
iframe { display: none !important; }