:root{
  --bg:#080a0f; --card:#0e1117; --elev:#121722;
  --text:#e8ecf1; --muted:#9aa3af;
  --accent:#59aaff; --accent2:#67d39f;
  --border:#1b2230; --err:#ff6b6b;
}

*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;font-family:Inter,ui-sans-serif,system-ui,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--text);}

.container{max-width:980px;margin:0 auto;padding:0 16px}

.bg{position:fixed;inset:0;pointer-events:none;z-index:-1}
.gradient{position:absolute;inset:-20%;background:
 radial-gradient(800px 480px at 15% 10%, rgba(89,170,255,.25), transparent 60%),
 radial-gradient(700px 420px at 85% -10%, rgba(103,211,159,.20), transparent 60%);
filter:blur(16px);}

.site-header{position:sticky;top:0;background:rgba(8,10,15,.5);backdrop-filter:blur(8px);border-bottom:1px solid #0e1320;z-index:5}
.site-header .container{display:flex;align-items:center;justify-content:space-between;height:56px}
.brand{font-weight:900;letter-spacing:.5px}
.nav{display:flex;gap:16px}
.nav-link{color:var(--muted);text-decoration:none}
.nav-link.active,.nav-link:hover{color:var(--text)}

.card{background:linear-gradient(180deg,rgba(14,17,23,.9),rgba(10,13,18,.9));border:1px solid var(--border);border-radius:16px;box-shadow:0 20px 60px rgba(0,0,0,.35)}
.hero{margin:28px 0;padding:20px}
.title{margin:0 0 6px;font-size:28px}
.subtitle{margin:0 0 16px;color:var(--muted)}

.form .grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media (max-width:720px){.form .grid{grid-template-columns:1fr}}

.field{display:flex;flex-direction:column;gap:6px}
.field.full{grid-column:1/-1}

.input{width:100%;border:1px solid var(--border);background:#0b0f18;color:var(--text);border-radius:12px;padding:12px 12px;outline:none}
.input:focus{border-color:#263247;box-shadow:0 0 0 3px rgba(89,170,255,.15)}

.actions{display:flex;align-items:center;gap:12px;margin-top:12px}
.btn{display:inline-flex;align-items:center;gap:10px;background:linear-gradient(90deg,var(--accent),var(--accent2));color:#09121a;border:none;border-radius:12px;padding:12px 16px;font-weight:800;cursor:pointer}
.btn:disabled{opacity:.6;cursor:not-allowed}

.spinner{width:16px;height:16px;border-radius:50%;border:2px solid rgba(0,0,0,.2);border-top-color:#09121a;animation:spin .9s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

.note{color:var(--muted);font-size:13px}
.toast{margin-top:10px;background:#101521;border:1px solid #1c2636;border-radius:12px;padding:10px 12px;color:var(--text)}
.toast.err{border-color:#3b1f26;background:#1a0f13;color:#ffd2d2}

.ad-slot{margin:18px 0;height:120px;border:1px dashed #263247;border-radius:14px;background:rgba(15,20,30,.6);display:flex;align-items:center;justify-content:center;color:#7f8ea6}
.footer{margin:20px 0 40px;color:var(--muted);text-align:center}