.btn{display:inline-flex;align-items:center;justify-content:center;gap:0.45rem;padding:0.55rem 1.1rem;border:1px solid transparent;border-radius:var(--radius-full);background:var(--bg-elevated);color:var(--text);border-color:var(--border-strong);font-size:var(--text-base);font-weight:550;line-height:1.2;white-space:nowrap;cursor:pointer;transition:background var(--transition-fast),border-color var(--transition-fast),color var(--transition-fast)}.btn:hover{background:var(--bg-sunken);border-color:var(--text-muted)}.btn:active{transform:translateY(1px)}.btn-primary{background:var(--color-primary);border-color:var(--color-primary);color:var(--text-on-primary)}.btn-primary:hover{background:var(--color-primary-dark);border-color:var(--color-primary-dark);color:var(--text-on-primary)}.btn-ghost{background:transparent;border-color:transparent;color:var(--text-muted)}.btn-ghost:hover{background:var(--bg-sunken);border-color:transparent;color:var(--text)}.btn-danger{background:transparent;border-color:var(--border-strong);color:var(--color-danger)}.btn-danger:hover{background:var(--tint-error);border-color:var(--tint-error);color:var(--on-error)}.btn-sm{padding:0.35rem 0.85rem;font-size:var(--text-sm)}.btn-block{width:100%}.btn:disabled,.btn[aria-disabled="true"]{opacity:0.45;cursor:not-allowed}.btn:disabled:hover{background:var(--bg-elevated);border-color:var(--border-strong)}@media (max-width:900px),(pointer:coarse){.btn{min-height:2.75rem}.btn-sm{min-height:2.5rem;padding-inline:1rem}}@media (pointer:coarse){.btn,.btn-sm{min-height:44px}}