.btn{border-radius:var(--radius-full);cursor:pointer;font-weight:600;font-family:var(--font-body);white-space:nowrap;letter-spacing:-.01em;border:none;justify-content:center;align-items:center;gap:8px;transition:background .15s,box-shadow .15s,transform .15s;display:inline-flex}.btn:disabled{opacity:.4;cursor:not-allowed;transform:none}.btn-sm{padding:8px 18px;font-size:.8rem}.btn-md{padding:12px 28px;font-size:.9rem}.btn-lg{padding:16px 36px;font-size:.95rem}.btn-primary{background:var(--color-primary);color:#fff;box-shadow:0 2px 8px #ff4d4d33}.btn-primary:hover:not(:disabled){background:var(--color-primary-hover);transform:translateY(-1px);box-shadow:0 4px 16px #ff4d4d4d}.btn-primary:active:not(:disabled){transform:translateY(0);box-shadow:0 1px 4px #ff4d4d33}.btn-secondary{background:var(--color-secondary);color:#fff;box-shadow:0 2px 8px #1a1a2e26}.btn-secondary:hover:not(:disabled){background:var(--color-secondary-hover);transform:translateY(-1px);box-shadow:0 4px 16px #1a1a2e33}.btn-accent{background:var(--color-accent);color:var(--color-secondary);font-weight:700}.btn-accent:hover:not(:disabled){background:var(--color-accent-hover);transform:translateY(-1px)}.btn-outline{color:var(--color-text);border:1.5px solid var(--color-border-strong);background:0 0}.btn-outline:hover:not(:disabled){border-color:var(--color-primary);color:var(--color-primary);background:var(--color-primary-subtle)}.btn-danger{background:var(--color-danger);color:#fff}.btn-danger:hover:not(:disabled){background:#b91c1c}.btn-ghost{color:var(--color-primary);background:0 0}.btn-ghost:hover:not(:disabled){background:var(--color-primary-subtle)}