.btn{font-family:var(--font-heading);font-weight:var(--type-weight-heading);letter-spacing:var(--type-ls-h6);border:none;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:var(--space-8);transition:background .15s,color .15s,box-shadow .15s;white-space:nowrap;text-decoration:none;border-radius:var(--radius-full);min-height:0}.btn--lg{font-size:var(--type-size-text-m);padding:var(--space-16) var(--space-32)}.btn--md{font-size:var(--type-size-text-s);padding:var(--space-12) var(--space-24)}.btn--sm{font-size:var(--type-size-text-tiny);padding:var(--space-8) var(--space-16)}.btn--primary{background:var(--ui-bg-action-primary);color:var(--color-foliage)}.btn--primary:hover{background:var(--ui-bg-action-primary-hover)}.btn--primary:active{background:var(--ui-bg-action-primary-active)}.btn--primary:disabled,.btn--primary[aria-disabled=true]{background:var(--ui-bg-action-primary-disabled);opacity:.5;cursor:not-allowed}.btn--secondary{background:var(--ui-bg-action-secondary);color:var(--ui-bg-action-primary)}.btn--secondary:hover{background:var(--ui-bg-action-secondary-hover)}.btn--secondary:active{background:var(--ui-bg-action-secondary-active)}.btn--secondary:disabled,.btn--secondary[aria-disabled=true]{background:var(--ui-bg-action-secondary-disabled);cursor:not-allowed}.btn--tertiary{background:var(--ui-bg-action-tertiary);color:var(--ui-text-primary);border:1px solid var(--ui-border-primary)}.btn--tertiary:hover{background:var(--ui-bg-action-tertiary-hover)}.btn--tertiary:active{background:var(--ui-bg-action-tertiary-active)}.btn--tertiary:disabled,.btn--tertiary[aria-disabled=true]{background:var(--ui-bg-action-tertiary-disabled);cursor:not-allowed}.btn--ghost{background:var(--ui-bg-action-ghost);color:var(--ui-text-primary);border:1px solid var(--ui-border-primary)}.btn--ghost:hover{background:var(--ui-bg-action-ghost-hover);border-color:var(--ui-border-secondary)}.btn--ghost:active{background:var(--ui-bg-surface-soft-green)}@supports (color-mix(in srgb,red,red)){.btn--ghost:active{background:color-mix(in srgb,var(--ui-bg-action-primary) 8%,transparent)}}.btn--ghost:disabled,.btn--ghost[aria-disabled=true]{opacity:.4;cursor:not-allowed}.btn--text{background:var(--ui-bg-action-text);color:var(--ui-text-primary);border:none;padding-left:0;padding-right:0}.btn--text:hover{color:var(--ui-text-display)}.btn--text:disabled,.btn--text[aria-disabled=true]{opacity:.4;cursor:not-allowed}.btn--icon-only{aspect-ratio:1 / 1;padding:var(--space-12)}.btn--block{width:100%;display:flex}.btn--loading{pointer-events:none;opacity:.7}.btn-spinner{width:16px;height:16px;border:2px solid currentColor;border-right-color:transparent;border-radius:var(--radius-full);animation:btn-spin .6s linear infinite}@keyframes btn-spin{to{transform:rotate(360deg)}}@media(prefers-reduced-motion:reduce){.btn-spinner{animation:none}}.btn:focus-visible,.btn-circle:focus-visible{outline:2px solid var(--ui-bg-action-focus-ring);outline-offset:2px}@supports (color-mix(in srgb,red,red)){.btn:focus-visible,.btn-circle:focus-visible{outline-color:var(--ui-bg-action-focus-ring);box-shadow:0 0 0 3px color-mix(in srgb,var(--color-green) 20%,transparent)}}.btn-circle{border-radius:var(--radius-full);border:none;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;transition:all .15s;min-height:0;padding:0}.btn-circle--sm{width:32px;height:32px}.btn-circle--md{width:48px;height:48px}.btn-circle--lg{width:64px;height:64px}.btn-circle--xl{width:80px;height:80px}.btn-circle--primary{background:var(--ui-bg-action-primary);color:var(--color-foliage)}.btn-circle--primary:hover{background:var(--ui-bg-action-primary-hover)}.btn-circle--secondary{background:var(--ui-bg-action-secondary);color:var(--ui-bg-action-primary)}.btn-circle--secondary:hover{background:var(--ui-bg-action-secondary-hover)}.btn-circle--tertiary{background:var(--ui-bg-card-primary);color:var(--ui-text-primary);box-shadow:var(--elevation-low)}.btn-circle--tertiary:hover{background:var(--ui-bg-card-secondary)}.btn-circle--ghost{background:var(--ui-bg-action-ghost);color:var(--ui-text-secondary);border:1.5px solid var(--ui-border-primary)}.btn-circle--ghost:hover{color:var(--ui-text-primary);border-color:var(--ui-border-secondary)}.btn-circle--destructive{background:var(--ui-system-error-bg);color:var(--ui-system-error-text)}.btn-circle--destructive:hover{opacity:.85}.btn-circle:disabled,.btn-circle[aria-disabled=true]{opacity:.4;cursor:not-allowed}