.btn,button:not(.view-btn){display:inline-block;padding:.75rem 1.5rem;font-size:.875rem;font-weight:500;line-height:1.5;text-align:center;text-decoration:none;white-space:nowrap;vertical-align:middle;cursor:pointer;user-select:none;border:1px solid transparent;border-radius:6px;transition:all .2s ease-in-out}button:not(.view-btn){background:0 0;font-family:inherit}.btn-primary{background-color:var(--brand-primary);border-color:var(--brand-primary);color:var(--text-inverse)}.btn-primary:hover{background-color:var(--brand-primary-dark);border-color:var(--brand-primary-dark);color:var(--text-inverse);text-decoration:none;transform:translateY(-1px);box-shadow:0 4px 8px rgba(var(--brand-primary-rgb),.3)}.btn-primary:active,.btn-primary:focus{background-color:var(--brand-primary-dark);border-color:var(--brand-primary-dark);color:var(--text-inverse);transform:translateY(0);box-shadow:0 2px 4px rgba(var(--brand-primary-rgb),.3)}.btn-secondary{background-color:var(--bg-primary);border-color:var(--border-medium);color:var(--text-secondary)}.btn-secondary:hover{background-color:var(--bg-tertiary);border-color:var(--text-secondary);color:var(--text-primary);text-decoration:none}.btn-secondary:active,.btn-secondary:focus{background-color:var(--text-primary);border-color:var(--text-primary);color:var(--text-inverse)}.btn-outline{background-color:initial;border-color:var(--brand-primary);color:var(--brand-primary)}.btn-outline:hover{background-color:var(--brand-primary);border-color:var(--brand-primary);color:var(--text-inverse);text-decoration:none}.btn-outline:active,.btn-outline:focus{background-color:var(--brand-primary-dark);border-color:var(--brand-primary-dark);color:var(--text-inverse)}.btn-link{background-color:initial;border-color:transparent;color:var(--brand-primary);padding:.5rem 1rem}.btn-link:hover{background-color:initial;border-color:transparent;color:var(--brand-primary-dark);text-decoration:underline}.btn-link:active,.btn-link:focus{color:var(--brand-primary-dark)}.btn-sm{padding:.5rem 1rem;font-size:.8rem}.btn-lg{padding:1rem 2rem;font-size:1rem}.btn:disabled,.btn.disabled{opacity:.5;cursor:not-allowed;pointer-events:none}.btn:focus-visible{outline:2px solid var(--brand-primary);outline-offset:2px;box-shadow:0 0 0 3px rgba(194,14,26,.3)}.btn-group{display:inline-flex;gap:.5rem}.btn-group .btn{margin:0}.btn i{margin-right:.5rem}.btn i:only-child{margin-right:0}.view-btn{padding:.5rem 1rem;border:1px solid var(--calendar-border);background:#fff;color:var(--text-secondary);border-radius:6px;cursor:pointer;font-size:.875rem;font-weight:500;transition:all .2s}.view-btn:hover{background:var(--calendar-hover);border-color:var(--text-secondary)}.view-btn.active{background:var(--text-primary);color:#fff;border-color:var(--text-primary)}@media(max-width:768px){.btn{width:100%;display:block}.btn-group{flex-direction:column;width:100%}.btn-group .btn{width:100%}.view-switcher .view-btn{width:auto;flex:1}}@media(prefers-reduced-motion:reduce){.btn{transition:none}}@media(prefers-contrast:high){.btn{border-width:2px}}