:root{--bg: #14161a;--panel: #1c1f26;--panel-2: #262b35;--text: #e6e6e6;--muted: #9aa3b2;--accent: #4f7cff;color-scheme:dark}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,Segoe UI,sans-serif}a{color:var(--accent)}h2{margin:0 0 .75rem;font-size:1.05rem}.panel{background:var(--panel);border-radius:8px;padding:1rem 1.25rem;margin-bottom:1rem}input,select{background:var(--panel-2);color:var(--text);border:1px solid #333a47;border-radius:4px;padding:.5rem}button{background:var(--panel-2);color:var(--text);border:1px solid #333a47;border-radius:4px;padding:.45rem .9rem;cursor:pointer}button.primary{background:var(--accent);border-color:var(--accent);color:#fff}button:disabled{opacity:.5;cursor:default}.error{color:#ff8f8f}.hint{color:var(--muted)}