:root{--bg:#0b1220;--card:#131f33;--card2:#182742;--ink:#eef2f8;--mut:#9fb0c8;--acc:#38e1c6;--acc2:#ffb454;--line:#24344f}
*{box-sizing:border-box}
body{margin:0;font-family:"Segoe UI",system-ui,-apple-system,Roboto,"Helvetica Neue",Arial,sans-serif;background:var(--bg);color:var(--ink);line-height:1.65}
a{color:var(--acc)}
header{background:linear-gradient(180deg,#0e1930,#0b1220);border-bottom:1px solid var(--line);padding:16px 20px;display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between;position:sticky;top:0;z-index:10}
.logo{font-size:24px;font-weight:800;color:#fff;text-decoration:none;letter-spacing:.3px;display:inline-flex;align-items:center}.logo span{color:var(--acc)}.logo-img{height:36px;width:auto;border-radius:9px;margin-right:10px}
nav a{margin:0 9px;color:#cbd8ea;text-decoration:none;font-weight:500}nav a:hover{color:var(--acc)}
.menu-btn{display:none;background:none;border:1px solid var(--line);color:#fff;font-size:24px;line-height:1;border-radius:10px;padding:6px 12px;cursor:pointer}
@media (max-width:640px){.menu-btn{display:block}nav{display:none;width:100%}nav.open{display:block}nav a{display:block;margin:10px 2px}}
main{max-width:920px;margin:0 auto;padding:26px 18px 70px}
.hero{background:radial-gradient(600px 220px at 20% 0%,rgba(56,225,198,.22),transparent 60%),radial-gradient(500px 200px at 90% 20%,rgba(255,180,84,.16),transparent 60%),linear-gradient(180deg,#12233f,#0f1c33);border:1px solid var(--line);border-radius:20px;padding:28px 26px;margin:6px 0 22px}
.hero h1{margin:0 0 8px;font-size:38px;line-height:1.2}
.hero p{color:#c6d4e8;font-size:18px;margin:0}
h1{font-size:32px;line-height:1.25}h2{margin-top:38px;padding-bottom:6px}
h2::after{content:"";display:block;width:56px;height:3px;background:var(--acc);border-radius:3px;margin-top:8px}
.card{background:linear-gradient(180deg,var(--card2),var(--card));border:1px solid var(--line);border-radius:16px;padding:20px;margin:18px 0;box-shadow:0 10px 30px rgba(0,0,0,.25)}
textarea,input[type=text],input[type=email],select{width:100%;background:#0b1220;color:var(--ink);border:1px solid #3b4d6e;border-radius:12px;padding:12px 14px;font-size:17px}
textarea{min-height:120px}textarea:focus,input:focus,select:focus{outline:2px solid var(--acc);border-color:var(--acc)}
label{color:var(--mut);font-size:14px}
button{background:var(--acc);color:#032b24;border:0;border-radius:12px;padding:11px 20px;font-size:16px;font-weight:700;cursor:pointer;margin:6px 6px 6px 0;box-shadow:0 4px 14px rgba(56,225,198,.25)}
button.sec{background:#22344f;color:#fff;box-shadow:none}button:hover{filter:brightness(1.08);transform:translateY(-1px)}
.row{display:flex;gap:14px;flex-wrap:wrap}.row>div{flex:1;min-width:230px}
.controls{display:flex;gap:18px;flex-wrap:wrap;align-items:center;margin:14px 0}
.controls input[type=range]{width:150px;accent-color:var(--acc)}
table{width:100%;border-collapse:collapse}th,td{padding:9px 11px;border-bottom:1px solid var(--line);text-align:left}
tr:hover td{background:rgba(56,225,198,.05)}
td.code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:18px;letter-spacing:2px;color:#ffd9a0}
.muted{color:var(--mut);font-size:14px}.big{font-size:64px;letter-spacing:8px;font-family:ui-monospace,Menlo,monospace;color:var(--acc)}
#flash{position:fixed;inset:0;background:#fff;opacity:0;pointer-events:none;z-index:50}
footer{border-top:1px solid var(--line);padding:26px 18px;text-align:center;color:var(--mut);line-height:2}
.dropzone{border:2px dashed #3b4d6e;border-radius:16px;padding:30px 20px;text-align:center;cursor:pointer;background:#0b1220}
.dropzone.drag{border-color:var(--acc);background:#12233f}
.filebtn{display:inline-block;background:#22344f;color:#fff;border-radius:12px;padding:11px 20px;font-weight:700;cursor:pointer;margin:6px 6px 6px 0}
.pill{display:inline-block;background:#0b1220;border:1px solid #3b4d6e;border-radius:99px;padding:4px 12px;margin:3px;font-size:14px}
.feat{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:14px;margin:18px 0}
.feat div{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px}
.feat b{font-size:18px}
@media(max-width:600px){h1,.hero h1{font-size:27px}.big{font-size:44px}.hero{padding:22px 18px}}
@media print{header,footer,button,.noprint{display:none!important}body{background:#fff;color:#000}.card{border:1px solid #999;box-shadow:none}}