:root{--color-primary:#2563eb;--color-primary-hover:#1d4ed8;--color-primary-light:#eff6ff;--color-bg:#fff;--color-bg-subtle:#f8fafc;--color-bg-muted:#f1f5f9;--color-text:#0f172a;--color-text-muted:#64748b;--color-text-subtle:#94a3b8;--color-border:#e2e8f0;--color-border-strong:#cbd5e1;--color-success:#16a34a;--color-success-bg:#f0fdf4;--color-error:#dc2626;--color-error-bg:#fef2f2;--color-warning:#d97706;--color-warning-bg:#fffbeb;--font-sans:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;--font-mono:"SF Mono","Fira Code","Cascadia Code",monospace;--space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;--space-5:20px;--space-6:24px;--space-8:32px;--space-10:40px;--space-12:48px;--space-16:64px;--max-width:1120px;--max-width-prose:680px;--radius:6px;--radius-lg:10px;--shadow-sm:0 1px 2px #0000000d;--shadow:0 1px 3px #0000001a,0 1px 2px #0000000f;--shadow-md:0 4px 6px #00000012,0 2px 4px #0000000f;--transition:.15s ease}[data-theme=dark]{--color-primary:#3b82f6;--color-primary-hover:#60a5fa;--color-primary-light:#1e3a5f;--color-bg:#0f172a;--color-bg-subtle:#1e293b;--color-bg-muted:#273548;--color-text:#f1f5f9;--color-text-muted:#94a3b8;--color-text-subtle:#64748b;--color-border:#1e293b;--color-border-strong:#334155;--color-success-bg:#052e16;--color-error-bg:#2d0a0a;--color-warning-bg:#2d1a00;--shadow-sm:0 1px 2px #0000004d;--shadow:0 1px 3px #0006;--shadow-md:0 4px 6px #0006}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;font-size:16px}body{font-family:var(--font-sans);background:var(--color-bg);color:var(--color-text);transition:background var(--transition),color var(--transition);-webkit-font-smoothing:antialiased;line-height:1.6}img,video{max-width:100%;display:block}a{color:var(--color-primary);text-decoration:none}a:hover{text-decoration:underline}button{cursor:pointer;font-family:inherit}input,textarea,select{font-family:inherit;font-size:inherit}.container{width:100%;max-width:var(--max-width);padding-inline:var(--space-6);margin-inline:auto}.section{padding-block:var(--space-16)}.input{border:1px solid var(--color-border-strong);border-radius:var(--radius);background:var(--color-bg);width:100%;color:var(--color-text);transition:border-color var(--transition),box-shadow var(--transition);outline:none;padding:10px 14px;font-size:14px;display:block}.input:focus{border-color:var(--color-primary);box-shadow:0 0 0 3px #2563eb1a}.input::placeholder{color:var(--color-text-subtle)}.input.error{border-color:var(--color-error)}.label{margin-bottom:var(--space-1);color:var(--color-text);font-size:14px;font-weight:500;display:block}.field{gap:var(--space-1);flex-direction:column;display:flex}.field-error{color:var(--color-error);margin-top:2px;font-size:12px}.btn{justify-content:center;align-items:center;gap:var(--space-2);border-radius:var(--radius);transition:all var(--transition);white-space:nowrap;border:none;padding:10px 20px;font-size:14px;font-weight:600;line-height:1;display:inline-flex;text-decoration:none!important}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--color-primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--color-primary-hover)}.btn-secondary{background:var(--color-bg-muted);color:var(--color-text);border:1px solid var(--color-border)}.btn-secondary:hover:not(:disabled){background:var(--color-bg-subtle)}.btn-outline{color:var(--color-primary);border:1px solid var(--color-primary);background:0 0}.btn-outline:hover:not(:disabled){background:var(--color-primary-light)}.btn-sm{padding:6px 14px;font-size:13px}.btn-lg{padding:13px 28px;font-size:16px}.btn-full{width:100%}.badge{text-transform:uppercase;letter-spacing:.04em;border-radius:20px;align-items:center;padding:2px 10px;font-size:12px;font-weight:600;display:inline-flex}.badge-success{background:var(--color-success-bg);color:var(--color-success)}.badge-error{background:var(--color-error-bg);color:var(--color-error)}.badge-warning{background:var(--color-warning-bg);color:var(--color-warning)}.badge-neutral{background:var(--color-bg-muted);color:var(--color-text-muted)}.badge-primary{background:var(--color-primary-light);color:var(--color-primary)}.card{background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--space-6)}.divider{background:var(--color-border);height:1px;margin-block:var(--space-6);border:none}.alert{padding:var(--space-3) var(--space-4);border-radius:var(--radius);font-size:14px;font-weight:500}.alert-error{background:var(--color-error-bg);color:var(--color-error)}.alert-success{background:var(--color-success-bg);color:var(--color-success)}.alert-warning{background:var(--color-warning-bg);color:var(--color-warning)}