:root{--bg:#0b0b0b;--fg:#f7f7f7;--muted:#b8b8b8;--accent:#5ccf9a;--danger:#ff5a5a;--card:#161616;--card-border:#262626}*{box-sizing:border-box}body,html{margin:0;padding:0}body{background:var(--bg);color:var(--fg);font-family:ui-sans-serif,system-ui,Inter,Arial}.container{max-width:1040px;margin:0 auto;padding:0 16px}.header{border-bottom:1px solid var(--card-border);position:-webkit-sticky;position:sticky;top:0;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:hsla(0,0%,4%,.7)}.header .container{display:flex;align-items:center;justify-content:space-between;height:64px}.logo{color:var(--fg);font-weight:900;font-size:20px;letter-spacing:.5px}.logo,.nav a{text-decoration:none}.nav a{color:var(--muted);margin-left:16px}.nav a:hover{color:var(--fg)}.main{padding:32px 0 64px;min-height:calc(100vh - 64px - 60px)}.footer{border-top:1px solid var(--card-border);padding:16px 0;color:var(--muted)}h1,h2{margin:0 0 16px}p{color:var(--muted)}.grid{display:grid;grid-template-columns:repeat(12,1fr);grid-gap:16px;gap:16px}.card{background:var(--card);border:1px solid var(--card-border);border-radius:14px;padding:16px}.btn{display:inline-flex;align-items:center;justify-content:center;height:40px;padding:0 16px;border-radius:10px;cursor:pointer;border:1px solid transparent;text-decoration:none;color:#0b0b0b;background:var(--accent);font-weight:700}.btn:hover{filter:brightness(1.05)}.btn.secondary{background:transparent;color:var(--fg);border-color:var(--card-border)}.btn.danger{background:var(--danger);color:#fff}.btn.sm{height:32px;font-size:14px;padding:0 12px}.input{background:#0f0f0f;border:1px solid var(--card-border);border-radius:10px;color:var(--fg);height:40px;padding:0 12px;width:100%}.label{display:block;font-size:14px;color:var(--muted);margin-bottom:6px}.row{display:flex;gap:10px;align-items:center}.mt16{margin-top:16px}.mt24{margin-top:24px}.mt32{margin-top:32px}