:root{--color-primary:#3564d7;--color-primary-hover:#2b53b4;--color-primary-soft:#eaf0fc;--color-success:#2e7d5b;--color-success-soft:#e7f4ee;--color-warning:#b26a00;--color-warning-soft:#fdf3e1;--color-danger:#c0392b;--color-danger-soft:#fbeae8;--color-background:#f6f7f9;--color-surface:#fff;--color-border:#e3e6ea;--color-text:#1f2933;--color-text-muted:#6b7683;--color-text-inverted:#fff;--font-family-base:-apple-system, blinkmacsystemfont, "Segoe UI", roboto, "Helvetica Neue", arial, sans-serif;--font-size-xs:.75rem;--font-size-sm:.875rem;--font-size-md:1rem;--font-size-lg:1.25rem;--font-size-xl:1.5rem;--font-weight-regular:400;--font-weight-medium:500;--font-weight-semibold:600;--line-height-base:1.5;--space-xs:.25rem;--space-sm:.5rem;--space-md:1rem;--space-lg:1.5rem;--space-xl:2rem;--space-2xl:3rem;--radius-sm:6px;--radius-md:10px;--shadow-card:0 1px 2px #1f29330f;--shadow-raised:0 4px 12px #1f29331a;--transition-fast:.12s ease;--transition-base:.2s ease;--sidebar-width:240px;--topbar-height:56px;--bottom-nav-height:60px;--content-max-width:1200px}.button{justify-content:center;align-items:center;gap:var(--space-sm);padding:var(--space-sm) var(--space-lg);border-radius:var(--radius-sm);font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);cursor:pointer;transition:background-color var(--transition-fast), border-color var(--transition-fast);border:1px solid #0000;display:inline-flex}.button:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}.button:disabled{opacity:.6;cursor:not-allowed}.button--primary{background-color:var(--color-primary);color:var(--color-text-inverted)}.button--primary:hover:not(:disabled){background-color:var(--color-primary-hover)}.button--secondary{background-color:var(--color-surface);border-color:var(--color-border);color:var(--color-text)}.button--secondary:hover:not(:disabled){border-color:var(--color-primary);color:var(--color-primary)}.button--danger{background-color:var(--color-danger);color:var(--color-text-inverted)}.button--danger:hover:not(:disabled){opacity:.9}