:root{color-scheme:light;--brand:#5751f5;--brand-hover:#4740e9;--brand-soft:#eeedff;--text:#101829;--muted:#64708b;--surface:#fff;--canvas:#f6f8ff;--border:#e6eafa;--sidebar:#111d30;--sidebar-active:#29394f;--shadow:0 12px 32px rgba(35,47,98,.07);--radius:13px;--font:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif}
[data-theme=dark]{color-scheme:dark;--brand:#8d86ff;--brand-hover:#a59fff;--brand-soft:#292747;--text:#eef2ff;--muted:#abb6d0;--surface:#182236;--canvas:#0e1626;--border:#303d54;--sidebar:#090f1c;--sidebar-active:#263552;--shadow:0 12px 32px rgba(0,0,0,.17)}
*,*::before,*::after{box-sizing:border-box}body{margin:0;font-family:var(--font);color:var(--text);background:var(--canvas);-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button{font:inherit;cursor:pointer}button:disabled{cursor:not-allowed;opacity:.65}a:focus-visible,button:focus-visible{outline:3px solid var(--brand);outline-offset:3px}h1,h2,h3,p{margin-top:0}.button{display:inline-flex;align-items:center;justify-content:center;padding:14px 22px;border-radius:11px;font-size:14px;font-weight:700;min-height:46px}.button-primary{background:var(--brand);color:#fff;box-shadow:0 8px 18px rgba(83,77,246,.18)}.button-primary:hover{background:var(--brand-hover)}.button-light{background:var(--surface);border:1px solid var(--border)}.theme-toggle,.ghost-button{border:1px solid var(--border);background:var(--surface);color:var(--text);border-radius:10px;min-width:44px;min-height:44px}