:root{--bg: #12161c;--panel: #1a1f28;--text: #e8ecf1;--muted: #7a8599;--accent: #f5a623;--danger: #e74c3c;--btn-radius: 12px;--btn-pad-y: 10px;--btn-pad-x: 14px;--btn-font: 14px}html,body,#root{margin:0;padding:0;height:100%}body{font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica Neue,Noto Sans,Liberation Sans,Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji",Segoe UI Symbol,"Noto Color Emoji";-webkit-font-smoothing:antialiased;-webkit-text-size-adjust:100%;-webkit-tap-highlight-color:rgba(0,0,0,0)}*{box-sizing:border-box}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 14px;font-size:14px;font-weight:600;color:var(--panel);background-color:#91bdd3;border:1px solid rgba(255,255,255,.12);border-radius:8px;cursor:pointer;transition:background-color .2s,border-color .2s,color .2s}.dark-btn{background-color:var(--panel)}.btn:hover{background-color:#2a3b51}.btn:focus-visible{outline:none;border-color:var(--accent);box-shadow:0 0 0 2px #00e5ff40}.btn:disabled{cursor:not-allowed;opacity:.5}.btn-primary{color:var(--panel)}.btn-secondary{color:#363f4c}.btn-ghost{background:transparent;border:none;color:var(--muted)}.btn-ghost:hover{background-color:var(--panel-hover)}.btn-danger{border-color:var(--danger);color:var(--danger)}.btn .icon{width:16px;height:16px}