:root{--bg:#050812;--panel:#0b1120;--gold:#f6b83f;--red:#dc3448;--cyan:#35c9ff;--text:#f5f7fb;--muted:#9aa7bb}*{box-sizing:border-box}html,body{margin:0;min-height:100%;background:radial-gradient(circle at top,#111c31 0,#050812 46%,#03050a 100%);color:var(--text);font-family:Segoe UI,Arial,sans-serif}button{font:inherit}#app{min-height:100vh;display:flex;flex-direction:column}.topbar{display:flex;justify-content:space-between;align-items:center;padding:15px clamp(15px,4vw,45px);border-bottom:1px solid #ffffff14}.brand{display:flex;gap:11px;align-items:center}.brand-mark{width:43px;height:43px;border:1px solid var(--gold);display:grid;place-items:center;color:var(--gold);font-size:25px;font-weight:900;border-radius:12px}.brand span,.brand strong{display:block}.brand span{font-size:10px;color:var(--gold);letter-spacing:2px}.brand strong{font-size:14px;letter-spacing:1px}.icon-btn{background:#101a2b;border:1px solid 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