:root{--brand: #2563eb;--brand-ink: #1e3a8a;--brand-soft: #dbeafe;--surface: #ffffff;--bg: #f3f4f6;--border: #e5e7eb;--muted: #6b7280;--text: #111827}@media(prefers-color-scheme:dark){:root{--brand: #3b82f6;--brand-ink: #1d4ed8;--brand-soft: #1e293b;--surface: #1f2430;--bg: #14171f;--border: #2d3340;--muted: #9aa3b2;--text: #f3f4f6}}*{box-sizing:border-box}html,body{margin:0;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;-webkit-text-size-adjust:100%}input,button,select{font-family:inherit;font-size:16px}input[type=text],input:not([type]),input[type=number]{width:100%;padding:.65rem .75rem;border:1px solid var(--border);border-radius:10px;background:var(--surface);color:var(--text)}input:focus{outline:2px solid var(--brand);outline-offset:-1px}button{cursor:pointer}.primary{background:var(--brand);color:#fff;border:none;border-radius:10px;padding:.75rem 1rem;font-weight:700;font-size:1rem}.primary:disabled{opacity:.5}.primary.sm{padding:.5rem .85rem;font-size:.9rem}.ghost{background:transparent;color:var(--brand);border:1px solid var(--border);border-radius:10px;padding:.7rem 1rem;font-weight:600}.icon{border:none;background:transparent;color:var(--muted);width:34px;height:34px;border-radius:8px;font-size:1rem}.icon.danger{color:#ef4444}.icon:active{background:var(--border)}