:root{--bg: #f4f5fb;--surface: #ffffff;--text: #1b2030;--muted: #5c6573;--border: #dde1ea;--primary: #4f46e5;--primary-hover: #4338ca;--on-primary: #ffffff;--danger: #b42318;--danger-bg: #fef3f2;--danger-border: #fda29b;--radius: 10px;--radius-lg: 16px;--shadow: 0 6px 24px rgba(16, 24, 40, .08);--ring: 0 0 0 3px rgba(79, 70, 229, .3)}*{box-sizing:border-box}html,body{height:100%}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;color:var(--text);background:var(--bg);line-height:1.55;-webkit-font-smoothing:antialiased}h1{font-size:1.6rem;line-height:1.2;margin:0 0 1rem;letter-spacing:-.01em}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}:focus-visible{outline:none;box-shadow:var(--ring);border-radius:6px}label{display:block;font-weight:600;font-size:.9rem;margin-bottom:.35rem}input,select,textarea{width:100%;padding:.6rem .75rem;font:inherit;color:var(--text);background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);transition:border-color .15s ease,box-shadow .15s ease}textarea{resize:vertical}input:focus-visible,select:focus-visible,textarea:focus-visible{border-color:var(--primary);box-shadow:var(--ring)}input[aria-invalid=true],textarea[aria-invalid=true]{border-color:var(--danger)}.visually-hidden{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}form{display:flex;flex-direction:column;gap:1rem}.btn{display:inline-flex;align-items:center;justify-content:center;padding:.6rem 1.1rem;font:inherit;font-weight:600;border:1px solid transparent;border-radius:var(--radius);cursor:pointer;transition:background .15s ease,border-color .15s ease}.btn:disabled{opacity:.6;cursor:not-allowed}.btn-primary{background:var(--primary);color:var(--on-primary)}.btn-primary:hover:not(:disabled){background:var(--primary-hover);text-decoration:none}.btn-ghost{background:transparent;color:var(--text);border-color:var(--border)}.btn-ghost:hover{background:#eef0f6;text-decoration:none}.error{margin:0;padding:.6rem .75rem;color:var(--danger);background:var(--danger-bg);border:1px solid var(--danger-border);border-radius:var(--radius);font-size:.9rem}.field-error{margin:.35rem 0 0;color:var(--danger);font-size:.85rem}