/* Button Components */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 600;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
    gap: 8px;
}

.btn:hover:not(:disabled) {
    background-color: var(--bg-primary);
    border-color: var(--text-muted);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-primary {
    background-color: var(--accent);
    color: #ffffff;
    border-color: var(--accent);
}

.btn-primary:hover:not(:disabled) {
    background-color: var(--accent-hover);
    border-color: var(--accent-hover);
}

.btn-success {
    background-color: var(--success);
    color: #ffffff;
    border-color: var(--success);
}

.btn-success:hover:not(:disabled) {
    opacity: 0.9;
}

.btn-danger {
    background-color: var(--error);
    color: #ffffff;
    border-color: var(--error);
}

.btn-danger:hover:not(:disabled) {
    opacity: 0.9;
}

/* Spinner Animation */
.spinner {
    width: 18px;
    height: 18px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: #ffffff;
    animation: spin 0.8s linear infinite;
    display: inline-block;
}

.btn:not(.btn-primary) .spinner {
    border-top-color: var(--accent);
    border-color: rgba(0, 0, 0, 0.1);
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}