*{box-sizing:border-box;margin:0;padding:0}
:root{--blue:#1d4ed8;--blue-2:#3b82f6;--cyan:#22d3ee;--ink:#0f172a;--ink-2:#334155;--mute:#64748b;--line:#e2e8f0;--bg:#f8fafc}
html,body{background:#fff;color:var(--ink);font-family:'Inter',system-ui,sans-serif;-webkit-font-smoothing:antialiased;line-height:1.6}
a{color:var(--blue);text-decoration:none}a:hover{text-decoration:underline}
.container{max-width:1280px;margin:0 auto;padding:0 24px}

header.main{padding:18px 0;border-bottom:1px solid var(--line);background:rgba(255,255,255,.92);backdrop-filter:saturate(150%) blur(8px);position:sticky;top:0;z-index:50}
header.main .row{display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand{display:flex;align-items:center;gap:11px;font-weight:900;font-size:18px;letter-spacing:-.018em;color:var(--ink)}
.brand .m{width:30px;height:30px;background:linear-gradient(135deg,var(--blue-2),var(--blue));border-radius:8px;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:900;font-size:12px}
.crumb{font-size:13px;color:var(--mute);font-weight:600}
.crumb a{color:var(--mute)}.crumb a:hover{color:var(--blue);text-decoration:none}

.hero-page{padding:40px 0 24px;background:linear-gradient(180deg,#f8fafc 0%,#fff 100%)}
.eyebrow{display:inline-block;padding:5px 12px;background:rgba(29,78,216,.08);color:var(--blue);border-radius:999px;font-size:11px;font-weight:800;letter-spacing:.16em;text-transform:uppercase;margin-bottom:14px}
h1{font-size:42px;font-weight:900;letter-spacing:-.025em;line-height:1.1;margin-bottom:10px;color:var(--ink)}
.lead{font-size:17px;color:var(--mute);max-width:780px}

.app{padding:30px 0 70px}
.app-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
@media(max-width:960px){.app-grid{grid-template-columns:1fr}}

.panel{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden}
.panel-head{padding:20px 24px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:12px}
.panel-head h2{font-size:15px;font-weight:800;color:var(--ink);letter-spacing:.04em;text-transform:uppercase}
.panel-body{padding:24px}

.field{margin-bottom:16px}
.field label{display:block;font-size:13px;font-weight:700;color:var(--ink-2);margin-bottom:6px}
.field .hint{font-size:12px;color:var(--mute);margin-top:5px}
.field input,.field textarea,.field select{width:100%;padding:11px 13px;border:1.5px solid var(--line);border-radius:9px;font-size:14px;font-family:inherit;color:var(--ink);transition:border-color .15s;background:#fff}
.field input:focus,.field textarea:focus,.field select:focus{outline:0;border-color:var(--blue);box-shadow:0 0 0 3px rgba(29,78,216,.08)}
.field textarea{resize:vertical;min-height:80px;font-family:'JetBrains Mono',monospace;font-size:13px}

.btn{display:inline-flex;align-items:center;gap:8px;padding:11px 20px;border-radius:10px;font-weight:700;font-size:14px;cursor:pointer;border:none;transition:all .15s;font-family:inherit}
.btn-primary{background:var(--blue);color:#fff}.btn-primary:hover{background:#1e40af}
.btn-secondary{background:#f1f5f9;color:var(--ink);border:1.5px solid var(--line)}.btn-secondary:hover{border-color:var(--blue)}
.btn-ghost{background:transparent;color:var(--blue);border:1.5px solid var(--blue)}.btn-ghost:hover{background:rgba(29,78,216,.06)}
.btn-small{padding:7px 13px;font-size:12px}

.preview{background:#0a0f1e;color:#e2e8f0;font-family:'JetBrains Mono',monospace;font-size:13px;padding:24px;min-height:540px;max-height:780px;overflow:auto;white-space:pre-wrap;word-wrap:break-word;line-height:1.65;border-radius:0 0 17px 17px}

.toolbar{display:flex;gap:8px;align-items:center}

.helper{background:linear-gradient(135deg,rgba(29,78,216,.04),rgba(34,211,238,.04));border-left:3px solid var(--blue);padding:14px 16px;border-radius:8px;font-size:13px;color:var(--ink-2);margin-bottom:24px}
.helper strong{color:var(--ink)}

.type-btn{padding:8px 16px;background:#f1f5f9;color:var(--ink-2);border:1.5px solid var(--line);border-radius:9px;font-weight:600;font-size:13px;cursor:pointer;transition:all .15s;font-family:inherit}
.type-btn:hover{border-color:var(--blue);color:var(--blue)}
.type-btn.active{background:var(--blue);color:#fff;border-color:var(--blue)}

section.context{padding:80px 0;background:var(--bg)}
section.context .container{max-width:880px}
.context h2{font-size:32px;font-weight:900;margin-bottom:14px;letter-spacing:-.02em}
.context p{font-size:16px;color:var(--ink-2);margin-bottom:14px;line-height:1.75}
.context h3{font-size:21px;font-weight:800;margin-top:30px;margin-bottom:10px}
.context ul{margin:10px 0 20px 22px;color:var(--ink-2)}
.context li{margin-bottom:8px}

footer.bot{background:#0a0f1e;color:#94a3b8;padding:36px 0 28px;text-align:center;font-size:13px}
footer.bot a{color:#67e8f9}
.strip{height:4px;background:linear-gradient(90deg,#22d3ee 0%,#3b82f6 40%,#1d4ed8 70%,#0e7490 100%);margin-top:22px}