:root{--color-bg:#fff;--color-surface:#fff;--color-surface-2:#f7f7fa;--color-ink:#161212;--color-muted:#1612129e;--color-brand:#721b1b;--color-brand-strong:#5a1414;--color-accent:#721b1b1a;--color-accent-strong:#721b1b29;--color-on-brand:#fff;--color-danger:#b10f1a;--color-danger-bg:#b10f1a14;--color-danger-border:#b10f1a2e;--border-color:#14141e24;--border-color-strong:#14141e38;--shadow-sm:0 6px 18px #12121914;--shadow:0 14px 40px #1212191f;--radius:12px;--radius-sm:10px;--space-1:8px;--space-2:12px;--space-3:16px;--space-4:24px;--space-5:32px;--space-6:48px;--font-sans:ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, "Apple Color Emoji", "Segoe UI Emoji";--font-serif:var(--font-sans);--text-xl:36px;--text-lg:24px;--text-md:16px;--text-sm:14px;--line:1.45;--control-bg:var(--color-surface);--control-border:var(--border-color-strong);--control-focus-ring:#721b1b29}html,body{color:var(--color-ink);font-family:var(--font-sans);line-height:var(--line);background:#fff;margin:0;padding:0}*{box-sizing:border-box}html,body{font-family:var(--font-sans)}h1,h2,h3,h4,h5,h6,p,a,span,small,strong,label,li{font-family:inherit}h1,h2,h3{letter-spacing:.2px;margin:0}h1{font-size:clamp(22px,2.2vw,30px);line-height:1.18}h2{font-size:clamp(16px,1.6vw,20px);line-height:1.25}p{color:var(--color-muted);margin:0}a{color:inherit}main{padding:0;display:block}button,input,select,textarea{color:inherit;font-family:inherit}input,select,textarea{border-radius:var(--radius-sm);border:1px solid var(--control-border);background:var(--control-bg);width:100%;font-size:var(--text-sm);outline:none;padding:10px 12px}input:focus,select:focus,textarea:focus{border-color:var(--color-brand);box-shadow:0 0 0 4px var(--control-focus-ring)}button{background:0 0;border:none}button:disabled{opacity:.6;cursor:not-allowed}